| OsNCED3 |
expression levels correlate with |
abscisic acid (ABA) level |
Oryza sativa |
| TOL genes |
show no apparent synergies with |
ABA biosynthesis pathway |
Arabidopsis thaliana |
| other SDRs |
are likely able to catalyse |
ABA biosynthesis step |
Ceratopteris richardii; Polypodium vulgare |
| (ATHB21, HB-2, HB21, AT2G18550) and (ATHB40, HB-5, HB40, AT4G36740) and (ATHB53, HB-8, HB53, AT5G66700) |
together with BRC1 activate |
(ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
|
| 9-cis-epoxycarotenoid dioxygenase (NCED) |
converts |
9-cis-neoxanthin and 9-cis-violaxanthin into xanthoxin |
Oryza sativa |
| large drop in mesophyll water status away from veins |
triggers |
localized ABA biosynthesis in center of areole |
|
| nced3-2/nced5-2 double-mutant plants |
are impaired in |
ABA biosynthesis |
Arabidopsis thaliana |
| abscisic acid aldehyde oxidase3 (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
produces |
abscisic acid (ABA) |
|
| osmotic stress |
significantly decreases |
(ATNCED3, NCED3, SIS7, STO1, AT3G14440) transcript level |
Arabidopsis thaliana |
| (CER9, SUD1, AT4G34100) |
is likely to be |
negative regulator of abscisic acid (ABA) biosynthesis |
Arabidopsis thaliana |
| NCED enzyme |
catalyzes |
rate-limiting step in abscisic acid (ABA) biosynthesis pathway |
Arabidopsis thaliana |
| no study proposing phloem or companion cell source of ABA |
measured levels of ABA in |
tissues hypothesized |
|
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
is most strongly induced by |
dehydration stress |
Arabidopsis thaliana |
| OsNCED1 and OsNCED3 |
are key candidates for |
abscisic acid (ABA) biosynthesis |
Oryza sativa |
| osmotic stress |
stimulates |
biosynthesis and accumulation of abscisic acid (ABA) |
|
| salinity |
induces |
abscisic acid (ABA) accumulation in roots |
|
| all ABA-deficient mutants |
showed |
some ABA synthesis (31%–73% of wild-type level in well-watered conditions) |
Arabidopsis thaliana |
| abiotic stress conditions |
cause an increase in |
ABA biosynthesis |
Arabidopsis thaliana |
| studies on ABA biosynthesis localization |
are not supported by |
measurement of ABA levels in the hypothesized tissue |
Arabidopsis thaliana |
| mesophyll |
provides |
ideal tissue for ABA biosynthesis |
|
| compromised regulation of the cellular pH homeostasis |
is likely a major cause for |
aberrant ABA biosynthesis under osmotic stress |
|
| angiosperms |
show |
VPD-induced ABA synthesis |
|
| leaf-borne ABA |
is synthesized mainly in |
phloem companion cells of the vasculature |
|
| phloem companion cells |
is where ABA is mainly synthesized |
ABA |
Arabidopsis thaliana |
| NEOXANTHIN SYNTHASE1 and ƌ-CAROTENE DESATURASE1 |
suggest that |
ABA may accumulate due to abundance of carotenoid precursors |
Vitis vinifera |
| aba1-6 ABA biosynthesis mutant |
is |
affected in ABA DEFICIENT1 (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) |
Arabidopsis thaliana |
| all other land plant groups |
synthesise ABA in response to |
dehydration stress |
|
| genetic screens |
identified |
genes controlling ABA biosynthesis |
|
| lower ABA accumulation |
might be due at least partially to |
lower basal expression level of ABA biosynthesis gene HvNCED2 |
Hordeum vulgare |
| alkalization of the cytoplasm |
will boost |
ABA biosynthesis |
|
| abundant chloroplasts in mesophyll cells |
provide |
near limitless source of carotenoid precursors |
|
| 9-cis-EPOXYCAROTENOID DIOXYGENASE2 (HvNCED2) |
is |
key gene in ABA synthesis |
Hordeum vulgare |
| (CER9, SUD1, AT4G34100) mutant seeds |
had high levels of |
abscisic acid (ABA) |
Arabidopsis thaliana |
| restoration of stomata behavior in an ABA biosynthetic mutant |
with biosynthesis restored in guard cells under guard cell-specific promoter |
guard cells synthesize ABA |
Arabidopsis thaliana |
| genes representing ABA/carotenoid pathway |
were also found among |
132 genes within Pinot Noir Module 5 |
|
| 9-cis-epoxycarotenoid dioxygenase (NCED) |
cleaves |
neoxanthin |
|
| expression of ABA biosynthetic genes |
observed in |
guard cells |
Arabidopsis thaliana |
| ABA levels in leaf lamina tissue free of xylem or phloem |
increase significantly after |
bench drying for 2 hours |
Saxegothaea conspicua; Podocarpus latifolius; Cephalotaxus harringtonii; Amentotaxus formosana |
| ABA levels in vascular region of excised leaves |
increased |
bench drying |
Saxegothaea conspicua; Podocarpus latifolius; Cephalotaxus harringtonii; Amentotaxus formosana |
| labeled promoter lines |
have not been used to observe |
biosynthetic location in leaves under natural water stress |
Arabidopsis thaliana |
| (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) |
overexpression leads to |
increased ABA production |
Arabidopsis thaliana |
| CED2/ (ATELP, ATELP1, ATVSR1, BP-80, BP80, BP80-1;1, BP80B, GFS1, MTV18, VSR1, VSR1;1, AT3G52850) |
is essential for |
osmotic stress-regulated ABA biosynthesis |
|
| transgenic plants expressing the dominant-negative vsr mutant |
had lower expression of |
ABA biosynthesis genes |
|
| (CER9, SUD1, AT4G34100) mutant |
is not simply |
abscisic acid (ABA) overproduction mutant |
Arabidopsis thaliana |
| inhibiting ABA biosynthesis |
eliminated |
differences in germination during salt stress between (AtETR1, EIN1, ETR, ETR1, RDO3, AT1G66340) and (ETR2, AT3G23150) mutants |
Arabidopsis thaliana |
| restoring ABA synthesis either in the vasculature or in the guard cells |
is enough to |
recover plant growth- and stomata-related phenotypes of ABA-deficient plants |
Arabidopsis thaliana |
| no significant ABA biosynthesis in vascular tissue in Hakea lissosperma |
contrasts with |
significant ABA biosynthesis in phloem in Arabidopsis |
Hakea lissosperma; Arabidopsis thaliana |
| (ATNCED2, NCED2, AT4G18350) |
overexpression leads to |
increased ABA production |
Arabidopsis thaliana |
| regulation of ABA biosynthesis and turnover in guard cells |
occurs in response to |
red light |
Arabidopsis thaliana |
| acidification of the cytoplasm |
will diminish |
osmotic stress-activated ABA biosynthesis |
|
| induction of ABA biosynthesis, catabolic, and transport genes |
could contribute to |
transient accumulation of ABA in a specific tissue |
Arabidopsis thaliana |
| fluridone treatment |
attenuated |
(CER9, SUD1, AT4G34100) mutant phenotypes |
Arabidopsis thaliana |
| biosynthesis in water-stressed roots |
is never sufficient to ensure |
continuous production of ABA in these tissues during water stress |
|
| ABA biosynthetic mutant |
exists in |
Pisum sativum |
Pisum sativum |
| ced2 mutant |
shows lower transcript levels of |
(ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) |
Arabidopsis thaliana |
| guard cell-autonomous ABA synthesis |
controls |
water flux through the stomata |
Arabidopsis thaliana |
| 9-cis-epoxycarotenoid dioxygenase (NCED) |
is |
key enzyme of ABA biosynthesis |
|
| changes in the pH cyt |
affect |
ABA biosynthesis |
|
| abscisic acid (ABA) |
derives from |
carotenoid cleavage reaction |
plants |
| 9′-cis-epoxycarotenoid deoxygenase |
cleaves |
9′-cis-violaxanthin |
|
| HvNCED2 expression |
contributed to |
increase in abscisic acid (ABA) from 4 to 8 days after stress (DAS) |
Hordeum vulgare |
| cleavage step catalyzed by NCED |
is generally thought to be |
rate-limiting step |
|
| shoots |
are |
main source of ABA in the plant |
|
| aba4-3 mutant |
had ABA levels that were reduced slightly under well-watered conditions compared with |
wild type |
Arabidopsis thaliana |
| Cephalotaxus harringtonii |
is used as model for |
identification of main site of ABA biosynthesis in water-stressed leaves |
Cephalotaxus harringtonii |
| SlNAP2 |
directly regulates expression of |
ABA biosynthesis gene SlNCED1 |
Solanum lycopersicum |
| (ABA4, AT1G67080) |
catalyzes |
conversion of β-carotene to xanthoxin |
|
| (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) |
catalyzes |
production of bioactive ABA |
|
| ABA |
positively feedback regulates |
expression of several ABA biosynthesis genes |
Arabidopsis thaliana |
| fluridone application |
suppressed |
delayed seed germination of (CER9, SUD1, AT4G34100) mutant |
Arabidopsis thaliana |
| abscisic acid (ABA) levels |
are determined by |
de novo biosynthesis |
Arabidopsis thaliana |
| companion cell model of ABA biosynthesis |
is unable to explain |
where ABA would be synthesized in species from lycophytes and ferns |
lycophytes; ferns |
| no significant ABA biosynthesis in vascular tissue |
occurred over |
30 minutes of dehydration |
Hakea lissosperma |
| SlNCED1 |
encodes |
9-cis-epoxycarotenoid dioxygenase |
Solanum lycopersicum |
| transcriptional up-regulation of ABA biosynthetic genes in phloem cells |
may swamp |
signal from mesophyll cells |
Arabidopsis thaliana |
| C40 carotenoid |
originates from |
2-C-methyl-d-erythritol-4-phosphate pathway |
|
| guard cells |
express |
all ABA biosynthetic genes |
|
| norflurazon (NF) treatment |
reduces or eliminates |
differences in seed germination among mutants |
Arabidopsis thaliana |
| epidermis removal from mesophyll |
has no impact on |
increase in ABA levels under water deficit |
Saxegothaea conspicua; Podocarpus latifolius |
| increase in VPD |
significantly up-regulates |
ABA biosynthesis |
|
| high ratio of (Spd + Spm)/Put |
accelerates |
ABA synthesis |
Fragaria × ananassa |
| de novo synthesis of ABA |
is of primary importance for |
increasing ABA levels in response to abiotic stress |
|
| (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) loss of function |
reduces |
seed abscisic acid (ABA) levels |
Arabidopsis thaliana |
| aba2-11 mutant |
was chosen as genetic background for |
tissue-specific ABA biosynthesis restoration experiment |
Arabidopsis thaliana |
| mesophyll tissue |
shows considerable ABA biosynthesis when separated from |
vascular tissue |
Hakea lissosperma; Saxegothaea conspicua; Podocarpus latifolius; Cephalotaxus harringtonii; Amentotaxus formosana |
| (ATNCED9, NCED9, AT1G78390) |
is |
key enzyme in biosynthesis of ABA |
Triticum aestivum |
| guard cells |
show increased expression of ABA biosynthetic genes under |
high VPD |
|
| degree of desiccation experienced in tissues |
may be related to |
degree of ABA synthesized in various tissues |
Saxegothaea conspicua; Podocarpus latifolius; Cephalotaxus harringtonii; Amentotaxus formosana |
| considerable ABA biosynthesis |
occurs in |
mesophyll |
Hakea lissosperma; Saxegothaea conspicua; Podocarpus latifolius; Cephalotaxus harringtonii; Amentotaxus formosana |
| complete restoration of normal foliar ABA levels |
by transgenic manipulations |
overexpressing ABA biosynthetic genes in guard cells or phloem companion cells |
Arabidopsis thaliana |
| FaSAMDC upregulation |
promoted |
ABA accumulation |
Fragaria × ananassa |
| (CER9, SUD1, AT4G34100) mutant |
has increased |
abscisic acid (ABA) levels |
Arabidopsis thaliana |
| ced2 mutant |
shows lower transcript levels of |
(AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
Arabidopsis thaliana |
| up-regulation of (ATNCED6, NCED6, AT3G24220) expression in (CER9, SUD1, AT4G34100) mutant seeds |
may contribute to |
higher abscisic acid (ABA) level |
Arabidopsis thaliana |
| cell turgor and water status in phloem companion cells and guard cells |
cannot easily account for |
rapid, water status-triggered ABA biosynthesis observed in leaves |
|
| mesophyll cells |
contain |
high levels of carotenoid precursors |
|
| abscisic acid aldehyde oxidase3 (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
converts |
abscisic aldehyde |
|
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) expression |
is induced by |
dehydration |
Arabidopsis thaliana |
| osmotic stress-induced ABA biosynthesis |
is dependent on |
pH of the endosomal system |
Arabidopsis thaliana |
| osmotic stress-induced ABA biosynthesis |
is affected by |
disturbed intracellular pH homeostasis |
|
| ABA |
can be synthesized in |
guard cells |
Arabidopsis thaliana |
| high ratio of (Spd + Spm)/Put |
promotes the expression of |
(ATCCD1, ATNCED1, CCD1, NCED1, AT3G63520) |
Fragaria × ananassa |
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
is strongly induced by |
dehydration and high salinity |
|
| SlNCED1 |
relative expression not statistically different in |
DkBG1-OE transgenic fruits compared with WT |
Solanum lycopersicum |
| Oryza sativa 9-cis-epoxycarotenoid dioxygenase (NCED) transcripts |
high levels correlate with |
ABA accumulation |
Oryza sativa |
| transgenic barley lines expressing Arabidopsis 9-cis-epoxycarotenoid dioxygenase (ATNCED6, NCED6, AT3G24220) |
express |
Arabidopsis 9-cis-epoxycarotenoid dioxygenase (ATNCED6, NCED6, AT3G24220) |
Hordeum vulgare; Arabidopsis thaliana |
| aao3-2 mutant |
had ABA levels that were reduced slightly under well-watered conditions compared with |
wild type |
Arabidopsis thaliana |
| aba2-11 plants |
are |
strongly ABA deficient |
Arabidopsis thaliana |
| NCED |
is |
rate-limiting enzyme for ABA biosynthesis |
|
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
has been suggested to play |
crucial role in ABA biosynthesis |
Arabidopsis thaliana |
| intracellular pH homeostasis |
plays key role in |
regulation of ABA biosynthesis in general |
Arabidopsis thaliana |
| vacuolar trafficking mediated by (ATELP, ATELP1, ATVSR1, BP-80, BP80, BP80-1;1, BP80B, GFS1, MTV18, VSR1, VSR1;1, AT3G52850) |
is required for |
ABA biosynthesis gene expression |
|
| ABA-deficient mutation combined with (CER9, SUD1, AT4G34100) |
attenuated |
(CER9, SUD1, AT4G34100) mutant phenotypes |
Arabidopsis thaliana |
| (ATNCED6, NCED6, AT3G24220) overexpression |
results in |
increased abscisic acid (ABA) levels in seeds |
Arabidopsis thaliana |
| mesophyll tissue without stomata-bearing epidermis or veins |
shows significant ABA biosynthesis in |
both species |
Saxegothaea conspicua; Amentotaxus formosana |
| OsNCED1 (Os03g0645900) and OsNCED3 (Os07g0154100) |
showed significantly increased transcript levels in |
cold-treated and dehydration-treated plants |
Oryza sativa |
| early osmotic stress signal |
is essential for |
optimal induction of ABA biosynthesis |
|
| restoration of molybdenum hydroxylase activity in roots |
is sufficient to |
augment leaf ABA concentration |
Solanum lycopersicum |
| Amentotaxus formosana |
is used as model for |
identification of main site of ABA biosynthesis in water-stressed leaves |
Amentotaxus formosana |
| SlHY5 |
induced |
ABA biosynthesis |
Solanum lycopersicum |
| (ATCCD1, ATNCED1, CCD1, NCED1, AT3G63520) |
is gene involved in |
ABA biosynthesis |
Solanum lycopersicum |
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
catalyzes |
first step of ABA biosynthesis from carotenoids |
Arabidopsis thaliana |
| (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) mutants in Arabidopsis and rice |
are deficient in |
ABA |
Arabidopsis thaliana; Oryza sativa |
| myb36-1 mutant |
showed no change in expression of |
any of examined ABA biosynthetic genes |
|
| initial four catalytic steps of ABA biosynthesis |
primarily take place in |
plastids |
|
| (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) /low expression of osmotically responsive gene 6 |
catalyzes |
conversion of β-carotene to xanthoxin |
|
| zeaxanthin epoxidase (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) |
is first gene encoding |
ABA biosynthesis-related enzyme |
Nicotiana plumbaginifolia |
| last two steps of ABA biosynthesis |
produce |
bioactive ABA |
|
| (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) |
encodes |
zeaxanthin epoxidase |
|
| red light |
decreases |
ABA levels in guard cells |
Arabidopsis thaliana |
| (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) transcript levels in mock-treated cuao1-2 |
is similar to |
(ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) transcript levels in mock-treated wild-type |
Arabidopsis thaliana |
| fold increase in (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) transcript in cuao1-1 with ABA treatment |
is significantly higher than |
fold increase in (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) transcript in wild-type with ABA treatment |
Arabidopsis thaliana |
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
acts upstream to |
(ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) |
Arabidopsis thaliana |
| carotenoid cleavage dioxygenase 4 |
is significantly upregulated in |
RSV-infected N. benthamiana |
Nicotiana benthamiana |
| ABA biosynthesis deficient mutants |
show |
enhanced stomatal responses to red light |
Arabidopsis thaliana |
| (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) (ATNCED3, NCED3, SIS7, STO1, AT3G14440) and (NHL6, AT1G65690) expression |
was decreased in |
shr-2 mutant |
|
| increased amount of abscisic acid (ABA) |
could promote |
abscisic acid (ABA) biosynthesis |
Arabidopsis thaliana |
| VPD-induced ABA synthesis |
is associated with |
rapid up-regulation of 9-cis-epoxycarotenoid dioxygenase (NCED) genes |
|
| restored ABA production in guard cells or phloem companion cells |
was enough to increase |
leaf ABA level to wild-type value in well-watered conditions |
Arabidopsis thaliana |
| carotenoid cleavage reaction |
occurs in |
chloroplasts |
plants |
| CaUBP12 |
positively modulates expression levels of |
(ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
Capsicum annuum |
| degenerated algal symbiont in Toxoplasma gondii |
can still synthesize |
ABA |
Toxoplasma gondii |
| (ATNCED2, NCED2, AT4G18350) and (ATNCED3, NCED3, SIS7, STO1, AT3G14440) genes |
are expressed in |
pericycle at site of lateral root initiation |
Arabidopsis thaliana |
| expression of the genes for ABA biosynthesis |
is required to clarify |
where ABA is produced in roots under water stress |
|
| VvNCED1 |
is not up-regulated in |
skins of Red berries |
|
| xanthophyll cycle |
is essential component of |
ABA biosynthesis |
|
| mutations in BnaA09.ZEP and BnaC09.ZEP |
may affect |
ABA biosynthesis |
Brassica napus |
| G. elata |
seems to have lost capability of |
ABA biosynthesis |
Gastrodia elata |
| (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) |
catalyzes |
production of bioactive ABA |
|
| NCED |
is key gene involved in |
ABA biosynthesis |
Nicotiana tabacum |
| ABA levels in SO and SY fruit |
were higher in |
SY than in SO fruit |
|
| violaxanthin |
is |
precursor of ABA biosynthesis |
|
| fluridone |
is considered as |
effective inhibitor of ABA biosynthesis |
|
| tomato (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) mutant hp3 |
has |
significant decrease in ABA levels |
Solanum lycopersicum |
| EREBP1 overexpression |
displays elevated mRNA accumulation of |
ABA biosynthesis genes |
Oryza sativa |
| accumulation of ABA |
is affected by |
(ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) |
|
| PHYTOCHROME-INTERACTING FACTOR 1 (PIF1, PIL5, AT2G20180) |
regulate expression of |
abscisic acid biosynthetic genes |
Arabidopsis thaliana |
| violaxanthin and neoxanthin |
are alternative in vivo substrates of |
nine cis-epoxycarotenoid dioxygenase (NCED) |
Arabidopsis thaliana |
| expression of ABA biosynthetic genes in roots |
indicates |
certain catalytic conversion steps occur in roots |
Arabidopsis thaliana |
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) expression |
is more strongly expressed in Pro35S:CaUBP12 plants than wild-type at |
2 h after dehydration stress |
Arabidopsis thaliana |
| neoxanthin synthase |
is essential for |
de novo ABA biosynthesis during water stress |
|
| zeaxanthin |
is converted to |
violaxanthin or neoxanthin |
Arabidopsis thaliana |
| tobacco ortholog of (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) |
encodes |
epoxidase |
Nicotiana tabacum |
| sites of ABA synthesis in leaves |
are primarily near or at |
vascular bundles |
Arabidopsis thaliana |
| mutations in ABA biosynthesis |
reduce |
dormancy status of freshly harvested seeds |
|
| molybdenum cofactor sulphurase |
is involved in |
later steps of ABA biosynthesis |
Zea mays |
| ABA |
can be produced in greater amounts or at earlier stage in |
leaves relative to roots in response to water stress |
|
| ethylene |
has been reported to induce |
abscisic acid (ABA) synthesis |
|
| grafting experiments using tobacco |
showed that ABA is produced from |
roots under conditions of water stress |
Nicotiana tabacum |
| increased ABA levels |
result mainly from |
increased de novo biosynthesis through transcriptional activation of ABA biosynthetic genes |
|
| glyceraldehyde-3-phosphate |
is substrate of |
GAPCp |
|
| root ABA biosynthesis |
possibly occurs in response to |
hydraulic changes |
|
| VvNCED1 |
is greatly up-regulated in |
flesh of Red berries |
|
| GA treatment |
down-regulates |
LsNCED4 |
Lactuca sativa |
| ABA |
may be produced in greater amounts in |
leaves compared with roots |
|
| 9-cis-epoxycarotenoid cleavage reaction |
is rate-limiting step in |
ABA biosynthesis |
|
| ABA |
may be synthesized in |
leaves |
|
| water stress for 12 d in elongation region |
causes increased expression of |
vp14/NCED |
Zea mays |
| increase in root xylem sap ABA concentration on day 7 of water stress |
was not associated with |
significant increase in expression of ABA biosynthetic genes |
|
| isopentenyl diphosphate |
is synthesized via |
methylerythritol phosphate pathway |
Arabidopsis thaliana |
| methylerythritol phosphate pathway |
leads to successive production of |
phytoene and lycopene |
Arabidopsis thaliana |
| ABA |
must be rapidly biosynthesized in |
root tissues that have detected soil drying |
|
| abscisic acid (ABA) |
is synthesized from |
violaxanthin |
|
| (ABA4, AT1G67080) enzyme active form |
may need |
post-translational modifications or regulatory subunits |
Arabidopsis thaliana |
| de novo ABA biosynthesis in the roots |
may not be responsible for |
significant, albeit small increase in xylem sap ABA on day 7 of water stress |
|
| NCED |
catalyzes cleavage of |
cis-xanthophyll |
|
| 9-cis epoxcartenoid dioxygenase (ATNCED6, NCED6, AT3G24220) |
expression is investigated |
imbibition treatments |
Arabidopsis thaliana |
| (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
contributes to |
abscisic acid (ABA) synthesis in Arabidopsis seeds and siliques as well as leaves |
Arabidopsis thaliana |
| ABA (10 μM) treatment |
induces expression of |
(ATNCED5, NCED5, AT1G30100) gene |
Medicago truncatula |
| NaHD20 |
has multiple functions as a positive effector of |
ABA accumulation in leaves |
Nicotiana attenuata |
| Cs7g14820.1 (NCED4-like) induction |
was induced in |
de-fruited buds at Time 1 and 4 and in OFF-Crop buds at Time 4 |
|
| excess iron exposure |
increases |
abscisic acid (ABA) concentrations |
Oryza sativa |
| NCED |
is |
first committed step for ABA synthesis |
|
| ABA acting on guard cells |
may be produced in |
leaves of tomato |
Solanum lycopersicum |
| synthesis of ABA |
occurs in |
root tips |
|
| enzyme 9-cis-epoxycarotenoid dioxygenase (NCED) |
is involved in |
water stress-inducible ABA production |
|
| cell volume shrinkage |
is observed to induce |
ABA biosynthesis in roots |
|
| VvNCED1 and VvNCED2 expression |
does not show same relationship with |
tissue solute potential |
|
| abscisic acid (ABA) biosynthesis |
is mainly through |
indirect pathway from carotenoids |
|
| 9-cis-epoxycarotenoid dioxygenase enzymes (NCEDs) |
produce |
abscisic acid (ABA) precursors |
|
| amount of ABA synthesized in detached roots of broad beans exposed to water stress |
was approximately 30-times lower than |
amount of ABA synthesized in leaves of water-stressed plants |
Vicia faba |
| other chemical signals |
initiate |
ABA biosynthesis in the leaves |
|
| study |
aimed to examine |
if ABA biosynthesis is predominantly in leaves of water-stressed plants |
|
| transient increases in the expression of ABA biosynthetic genes |
may arise through |
increase in abscisic acid (ABA) |
Vitis vinifera |
| abscisic acid (ABA) |
is synthesized from |
carotenoids |
|
| abscisic acid |
reduces transcripts of |
9-cis-epoxycarotenoid dioxygenase (NCED) |
|
| increased levels of ABA in xylem sap at early stage of water stress |
may not be due to |
root biosynthesis |
Zea mays |
| NaHD20-silenced plants |
show decelerated and reduced |
ABA accumulation rate in leaves |
Nicotiana attenuata |
| NaHD20-silenced plants |
show 2- to 3-fold reduction in induction of |
NaNCED1 transcript |
Nicotiana attenuata |
| fluridone |
inhibits |
carotenoid and ABA synthesis |
|
| all trans-violaxanthin to all trans-neoxanthin conversion |
is catalyzed by |
(ABA4, AT1G67080) gene |
Arabidopsis thaliana |
| glucosamine treatment |
antagonizes |
low temperature-induced ABA biosynthesis |
Cucumis sativus L. |
| exogenous application of glucose |
enhanced expression of |
(ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) |
|
| water deficit (PEG) |
activates |
ABA biosynthesis pathway |
Medicago truncatula |
| 9-cis-epoxycarotenoid dioxygenase (NCED) |
is |
key enzyme for the biosynthesis of abscisic acid (ABA) |
|
| carotenoid biosynthesis inhibitors |
should prevent |
ABA biosynthesis |
|
| (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
encodes |
aldehyde oxidase that catalyses the oxidation of abscisic aldehyde to abscisic acid (ABA) |
Arabidopsis thaliana |
| LeNCED1 gene |
initiates |
ABA biosynthesis |
Solanum lycopersicum |
| NDGA |
was |
ideal inhibitor of the NCED enzyme |
|
| (ABA4, AT1G67080) mutant plants under water stress |
has low |
ABA level |
Arabidopsis thaliana |
| fluridone treatment |
led to an obvious reduction of |
endogenous ABA |
Solanum lycopersicum |
| [ABA] |
is determined by |
ABA synthesis |
|
| Citrus genome |
contained |
nine highly homologous NCED genes |
|
| Cs5g14370.1 (NCED3-like) expression |
was ~2-fold higher at |
Time 4 in OFF-Crop buds relative to ON-Crop buds |
|
| exogenous glucose application |
enhances |
ABA biosynthesis |
Cucumis sativus L. |
| aldehyde oxidase |
requires |
molybdenum cofactor |
Arabidopsis thaliana |
| 9-cis epoxcartenoid dioxygenase (NCED9) |
expression is investigated |
imbibition treatments |
Arabidopsis thaliana |
| constitutive expression of ABP9 |
enhances expression of |
genes encoding key enzymes in ABA biosynthesis |
Arabidopsis thaliana |
| carotenoids |
are |
precursors of ABA |
|
| detached leaves and roots independently subjected to water stress |
resulted in increase in ABA only in |
leaves |
Arabidopsis thaliana |
| viviparous mutants |
encode |
enzymes in ABA synthesis pathway |
Zea mays |
| NCED inhibition via RNAi in tomato fruit |
was targeted for |
key step in ABA biosynthesis |
Solanum lycopersicum |
| SlNCED1 |
is member of |
SlNCED gene family |
Solanum lycopersicum |
| ABA treatment |
significantly increases expression of |
SlNCED3 |
Solanum lycopersicum |
| NCED |
is encoded by |
five genes |
Arabidopsis thaliana |
| (ATNCED5, NCED5, AT1G30100) and (ATNCED3, NCED3, SIS7, STO1, AT3G14440) mutations combined |
decreased |
ABA levels under normal conditions |
Arabidopsis thaliana |
| (ATNCED5, NCED5, AT1G30100) |
contributes to |
basal ABA synthesis required for positive regulation of plant growth |
|
| cold stress |
leads to expression of |
(AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
|
| 100 μM NDGA |
totally blocked |
ABA accumulation |
Solanum lycopersicum |
| xylem ABA concentration |
might be associated with |
ABA biosynthesis in the leaves in Vitis vinifera L. |
Vitis vinifera L. |
| ABA content of wild-type Ws and (GED1, PRT6, AT5G02310) seedlings |
were not |
significantly different |
Arabidopsis thaliana |
| fluridone or NDGA |
acting only during a limited period of time |
ABA biosynthesis inhibition |
Solanum lycopersicum |
| (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) |
transcript levels are upregulated in |
IgASE1-expressing transgenic Arabidopsis upon osmotic stress |
Arabidopsis thaliana |
| CsNCED1 |
may play a key role in |
ABA biosynthesis |
Citrus sinensis |
| LeNCED1 gene expression |
is followed by |
endogenous ABA increase |
Solanum lycopersicum |
| NCED gene |
has been cloned and characterized in |
Arabidopsis |
Arabidopsis thaliana |
| shoot ABA biosynthesis by WT scions |
is sufficient to maintain |
WT shoot phenotype |
|
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
is expressed at much higher levels in |
IgASE1 transgenic seedlings compared to WT upon ABA treatment |
Arabidopsis thaliana |
| Two eicosapolyenoic acids eicosadienoic acid (EDA) and eicosatrienoic acid (ETrA) |
can stimulate |
the expression of abscisic acid (ABA) biosynthesis genes under osmotic stress |
Arabidopsis thaliana |
| dehydration treatment |
causes rapid increase in |
endogenous ABA |
Solanum lycopersicum |
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
is |
ABA biosynthetic gene |
Arabidopsis thaliana |
| genes for ABA biosynthesis and metabolism |
were |
misregulated in (ATTOP6B, BIN3, HLQ, HYP6, RHL3, TOP6B, AT3G20780) |
Arabidopsis thaliana |
| dehydration-induced ABA accumulation |
is |
common phenomenon |
|
| NCED gene |
was first isolated from |
maize vp14 mutant |
Zea mays |
| 9-cis-epoxycarotenoid dioxygenases (NCEDs) |
catalyse |
first committed step in ABA biosynthesis |
|
| genes of ABA biosynthesis |
were induced |
ABA biosynthesis |
|
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) (Cs5g14370) |
cleaved |
9-cis-violaxanthin |
|
| aldehyde oxidase (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
is involved in |
later steps of ABA biosynthesis |
Zea mays |
| root ABA biosynthesis |
results in |
marked increase in xylem sap ABA |
|
| 9-cis-epoxycarotenoid dioxygenase (NCED) gene family |
are the primary up-regulated genes with respect to |
abscisic acid (ABA) accumulation during water deficit |
|
| study using detached roots of pea and asian dayflower |
suggested ABA biosynthesis occurred somewhere between |
root tip and 3 cm distal to the tip |
Pisum sativum; Commelina communis |
| water stress for 12 d in meristematic region |
causes increased expression of |
aldehyde oxidase aao6 |
Zea mays |
| increased expression of ABA biosynthetic genes in elongation region of root at day 12 |
coincides with |
greatest increase in concentration of ABA in xylem sap |
|
| differential expression in AM plants of a nced gene |
has been described |
NCED gene |
|
| glyceraldehyde-3-phosphate |
is |
first precursor of the methyl-erythritol phosphate pathway responsible for ABA biosynthesis in the plastids |
Arabidopsis thaliana |
| auxin |
can stimulate |
biosynthesis of ABA |
|
| NCED |
plays key role in |
abscisic acid (ABA) biosynthesis |
Oryza sativa |
| chemicals that accelerate ABA accumulation |
can prime |
ABA biosynthesis |
|
| expression of ABA biosynthetic genes |
showed no significant difference in |
WT, (ERF1-2, AT1G12920) overexpressing lines, and mutant |
Arabidopsis thaliana |
| (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
appeared |
1.8-fold upregulated upon ABA treatment |
Arabidopsis thaliana |
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) (NINE-CIS-EPOXYCAROTENOID DIOXYGENASE) |
encodes |
rate-limiting activity for ABA biosynthesis |
Arabidopsis thaliana |
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
plays a major role in |
regulation of ABA synthesis in response to water deficit |
Arabidopsis thaliana |
| 9-cis-epoxycarotenoid dioxygenases (NCED) |
catalyze cleavage of |
9-cis-violaxanthin and 9'-cis-neoxanthin |
|
| (GED1, PRT6, AT5G02310) mutant phenotypes |
were unlikely to be related to |
endogenous ABA level |
Arabidopsis thaliana |
| (CCD4, NCED4, AT4G19170) |
is suppressed by |
mutation in (AtRH3, emb1138, RH3, AT5G26742) |
Arabidopsis thaliana |
| (APR2, APSR, ATAPR2, PRH, PRH43, AT1G62180) mutant |
pinpointed |
molecular reason for limitation of ABA biosynthesis by external sulfur supply |
Arabidopsis thaliana |
| altered ABA biosynthesis by limitation of (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) activity |
can contribute to |
observed high-salt sensitivity of sultr3;1 |
Arabidopsis thaliana |
| decreased leaf and root water status caused by heavy metals |
can enhance biosynthesis of |
abscisic acid (ABA) |
|
| exogenous application of cysteine |
reverts |
sultr3;1 mutant phenotypes |
Arabidopsis thaliana |
| ABA levels of the sultr3;1 knock-out seedlings |
reverted to wild-type levels within 6 h by feeding with |
Cys |
Arabidopsis thaliana |
| OsAP2-39 |
upregulates |
OsNCED1 |
Oryza sativa |
| (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) |
has lower mRNA levels in |
IgASE1 transgenic seedlings compared to WT in untreated control |
Arabidopsis thaliana |
| (ATNCED5, NCED5, AT1G30100) |
is significantly up-regulated before |
24 hours post-treatment |
Citrus sinensis |
| Arabidopsis 9-cis-epoxycarotenoid dioxygenase (ATNCED2, NCED2, AT4G18350) gene |
is up-regulated in |
CcCDR-transgenic plants |
Arabidopsis thaliana |
| (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) |
is |
ABA biosynthetic gene |
Arabidopsis thaliana |
| Cs5g14370.1 (NCED3-like) induction |
was increased by ~4-fold in |
OFF-Crop buds relative to ON-Crop buds at Time 0 |
|
| ABA synthesis in the root |
is less relevant in determining |
[ABA] |
|
| (ATNCED2, NCED2, AT4G18350) expression |
regulated by |
polyamine-dependent pathway |
|
| cold stress |
leads to expression of |
(ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
|
| ABA synthesis in the root |
is less relevant when |
ABA can be synthesized in the shoot |
|
| NCED genes |
are |
key elements in the control of ABA levels in seeds |
|
| fruit removal |
induced a 3-fold increase in |
Cs5g14370.1 (NCED3-like) expression at Time 1 |
|
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
is considered the major enzyme catalysing |
rate-limiting step in ABA biosynthesis |
|
| xanthoxin |
is oxidized to |
abscisic aldehyde in cytosol |
Arabidopsis thaliana |
| myb60::aba3 mutant |
was used to test for |
guard cell-specific ABA production |
Arabidopsis thaliana |
| abundance of ABA biosynthesis gene transcripts |
increases after exposure to |
ABA |
Arabidopsis thaliana |
| (AHK5, CKI2, HK5, AT5G10720) /13/20/24 QKO plants after osmostress |
exhibited ABA accumulation comparable to |
wild-type (WT) plants without osmostress |
Physcomitrella patens |
| (B2, BCH2, BETA-OHASE 2, CHY2, AT5G52570) (β-carotene hydroxylase 2) |
was |
3.2-fold upregulated by ABA and 2.2-fold by dry air |
Arabidopsis thaliana |
| (FUS3, AT3G26790) and (AKIN10, KIN10, SnRK1, SnRK1α1, SNRK1.1, AT3G01090) |
regulate |
ABA biosynthetic genes |
|
| other NCED family members |
have minor contribution to response to |
water deficit |
Arabidopsis thaliana |
| Cs5g14370.1 (NCED3-like) mRNA levels |
remained higher relative to |
ON-Crop buds throughout the experiment |
|
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) cleavage of 9-cis-violaxanthin |
forms |
xanthoxin |
|
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
has higher mRNA levels in |
IgASE1 transgenic seedlings compared to WT in untreated control |
Arabidopsis thaliana |
| disruption of SULTR3;5 |
resulted in |
decreased ABA content |
Arabidopsis thaliana |
| cysteine availability |
limits |
activity of molybdenum co-factor sulfurase (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) |
Arabidopsis thaliana |
| apparent KM value of (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) for Cys |
is |
50 μM |
Arabidopsis thaliana |
| drought stress |
may not be able to induce enough |
abscisic acid (ABA) |
|
| (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) expression |
is enhanced in |
hhp1-1 mutant compared with WT and c-hhp1-1 |
Arabidopsis thaliana |
| ABA and osmotic stress |
induces expression of |
ABA biosynthetic genes |
Arabidopsis thaliana |
| altered GA sensitivity in (ERF1-2, AT1G12920) mutant |
appears not to be associated with |
deficiency in ABA biosynthesis |
Arabidopsis thaliana |
| Expression of (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) and (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
were significantly higher in |
35S:IgASE1 transgenic seedlings |
Arabidopsis thaliana |
| (ATNCED2, NCED2, AT4G18350) transcript level |
strongly reduced to level lower than that of |
control |
|
| increased expression of three NCED-like genes |
suggests induction of |
ABA biosynthesis |
|
| OsNCED1 |
expression levels correlate with |
abscisic acid (ABA) level |
Oryza sativa |
| acidification of the vacuoles / TGN |
will boost |
ABA biosynthesis |
|
| 9-CIS-EPOXYCAROTENOID DIOXYGENASE6 (ATNCED6, NCED6, AT3G24220) |
is involved in |
abscisic acid (ABA) biosynthesis |
Arabidopsis thaliana |
| (ATNCED6, NCED6, AT3G24220) |
was |
up-regulated in the mutants |
Arabidopsis thaliana |
| transgenic restoration of ABA biosynthesis in guard cells of aba2-11 Arabidopsis mutant |
was enough to increase |
leaf ABA level |
Arabidopsis thaliana |
| stomata |
are not a major source of |
ABA |
Saxegothaea conspicua; Amentotaxus formosana |
| loss of turgor in phloem |
subsequently triggers |
transcriptional up-regulation of ABA biosynthetic genes |
Arabidopsis thaliana |
| data |
support |
early models of ABA biosynthesis occurring in mesophyll of leaves when water stressed |
Hakea lissosperma; Saxegothaea conspicua; Podocarpus latifolius; Cephalotaxus harringtonii; Amentotaxus formosana |
| FaNCED1 transient silencing |
resulted in decrease of |
ABA content in receptacle |
Fragaria × ananassa |
| ABA |
is synthesized through cleavage of |
C40 carotenoid |
|
| reduced ABA biosynthesis in the (ATVHA-C, DET3, AT1G12840) mutant |
is consistent with |
inhibition of the TGN-localized V-ATPases leads to increase salt sensitivity and growth defects in plants |
|
| vacuolar trafficking mediated by VSRs |
is required for |
osmotic stress regulation of ABA biosynthesis genes |
|
| Hakea lissosperma |
is used as model for |
identification of main site of ABA biosynthesis in water-stressed leaves |
Hakea lissosperma |
| FaSAMDC downregulation |
inhibited |
ABA accumulation |
Fragaria × ananassa |
| (ATVHA-C, DET3, AT1G12840) mutant |
shows significantly decreased |
(ATNCED3, NCED3, SIS7, STO1, AT3G14440) transcript level |
Arabidopsis thaliana |
| regulation of the ABA biosynthesis |
may happen at |
several levels |
|
| (AST12, SULTR3;1, AT3G51895) |
affects |
ABA biosynthesis |
Arabidopsis thaliana |
| NCED family |
has |
five characterized members ( (ATNCED2, NCED2, AT4G18350) (ATNCED3, NCED3, SIS7, STO1, AT3G14440) (ATNCED5, NCED5, AT1G30100) (ATNCED6, NCED6, AT3G24220) (ATNCED9, NCED9, AT1G78390) ) in Arabidopsis |
Arabidopsis thaliana |
| (AKIN10, KIN10, SnRK1, SnRK1α1, SNRK1.1, AT3G01090) and (FUS3, AT3G26790) |
could interact to control |
synthesis of ABA during embryogenesis |
|
| ABA biosynthesis |
was caused by |
overexpression of 9-cis-epoxycarotenoid dioxygenase (NCED) |
|
| drought treatment |
induced significantly |
expression of Nine Cis-Epoxycarotenoid Dioxygenase3 (ATNCED3, NCED3, SIS7, STO1, AT3G14440) gene |
Arabidopsis thaliana |
| fluridone |
can effectively inhibit |
abscisic acid (ABA) biosynthesis |
Arabidopsis thaliana |
| central vascular region |
did not show significant increase in |
ABA levels |
Hakea lissosperma |
| stomata |
are not a major source of ABA when |
leaf water status declines |
Saxegothaea conspicua; Amentotaxus formosana |
| ethylene |
has been found to induce |
components of ABA biosynthesis pathway |
Arabidopsis thaliana |
| GGPPS-defective mutants |
presented statistically significant differences in |
root ABA levels under +P or −P conditions compared with WT controls |
Solanum lycopersicum |
| (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) transcript |
is not upregulated upon |
dehydration |
Arabidopsis thaliana |
| zeaxanthin epoxidase (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) |
catalyzes conversion from |
zeaxanthin |
|
| alkalization of the vacuoles / TGN |
will diminish |
osmotic stress-activated ABA biosynthesis |
|
| abscisic acid (ABA) |
is synthesized in |
phloem companion cells |
|
| Saxegothaea conspicua |
is used as model for |
identification of main site of ABA biosynthesis in water-stressed leaves |
Saxegothaea conspicua |
| phloem companion cells |
are capable of synthesizing |
ABA |
Arabidopsis thaliana |
| abscisic acid (ABA) accumulation in transgenic barley line LN39 |
correlated with |
remodulated expression of HvNCED1 and HvNCED2 genes |
Hordeum vulgare |
| short-chain alcohol dehydrogenase (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) |
produces |
abscisic aldehyde |
|
| dominant-negative mutant lines |
have lower levels of |
ABA biosynthesis gene transcripts |
Arabidopsis thaliana |
| aba2-1 mutation |
suppressed |
delayed seed germination of (CER9, SUD1, AT4G34100) mutant |
Arabidopsis thaliana |
| (CER9, SUD1, AT4G34100) mutant seeds |
contain |
high levels of abscisic acid (ABA) |
Arabidopsis thaliana |
| spatiotemporal regulation of NCED genes |
is particularly important for control of |
ABA levels |
Arabidopsis thaliana |
| (ATNCED5, NCED5, AT1G30100) mutation |
is combined with |
(ATNCED3, NCED3, SIS7, STO1, AT3G14440) (ATNCED6, NCED6, AT3G24220) and (ATNCED9, NCED9, AT1G78390) mutations |
Arabidopsis thaliana |
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
plays |
crucial role in ABA accumulation during dehydration |
Arabidopsis thaliana |
| (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
is activated by |
molybdenum cofactor sulfurase (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) |
Arabidopsis thaliana |
| H2O2 production by NADPH oxidase |
triggers |
increased abscisic acid (ABA) biosynthesis |
Solanum lycopersicum |
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) expression induction |
is in order to increase |
endogenous ABA production |
|
| hydroxylation and epoxidation of β-carotene |
produces |
all-trans xanthophyll violaxanthin |
|
| violaxanthin |
is converted into |
9-cis-epoxyxanthophyll |
|
| ABA treatment |
significantly increases expression of |
SlNCED2 |
Solanum lycopersicum |
| (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) -1 mutants rescued by specifically expressing in guard cells |
supports |
role for de novo synthesis |
Arabidopsis thaliana |
| (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) (ABA DEFICIENT 2) |
is |
clock-regulated |
Arabidopsis thaliana |
| water deficit |
induces upregulation of |
NCED gene transcript and protein levels |
various plant species |
| (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) |
catalyzes oxidation of |
xanthoxin to abscisic aldehyde |
Arabidopsis thaliana |
| abscisic aldehyde oxidase |
catalyzes conversion of |
abscisic aldehyde |
Arabidopsis thaliana |
| (ATNCED6, NCED6, AT3G24220) and (ATNCED9, NCED9, AT1G78390) expression |
is essential for |
ABA synthesis in embryo and endosperm |
Arabidopsis thaliana |
| (ATNCED9, NCED9, AT1G78390) |
is essential for |
ABA production in the embryo and endosperm |
Arabidopsis thaliana |
| ACBP1-OX lines |
show increased expression of |
ABA-DEFICIENT2 (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) |
Arabidopsis thaliana |
| apr2-2 mutant |
showed |
lower ABA content |
Arabidopsis thaliana |
| (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) |
was differentially expressed in |
vegetative and reproductive organs exposed to temperature stress |
Arabidopsis thaliana |
| (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) (ATNCED3, NCED3, SIS7, STO1, AT3G14440) and (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
are |
genes associated with ABA biosynthesis and ABA-induced stomatal closure |
Arabidopsis thaliana |
| aba3-1 mutants with guard cell-specific ABA synthesis |
were engineered by introducing |
(ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) gene under control of guard cell-specific (AtMYB60, MYB60, AT1G08810) promoter |
Arabidopsis thaliana |
| (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) transcript |
is upregulated upon |
dehydration |
Arabidopsis thaliana |
| (ATNCED2, NCED2, AT4G18350) (ATNCED5, NCED5, AT1G30100) and (ATNCED9, NCED9, AT1G78390) |
contribute to thermoinhibition of germination by increasing |
ABA levels |
Arabidopsis thaliana |
| ABA biosynthesis |
is disrupted in |
aba2-13 mutant |
Arabidopsis thaliana |
| zeaxanthin epoxidase (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) |
produces |
violaxanthin |
Arabidopsis thaliana |
| upregulation of NCED gene transcript and protein levels |
is closely correlated with |
increased ABA levels |
various plant species |
| ectopic expression of SULTR3;1 |
reverts |
decreased ABA level in sultr3;1 mutants |
Arabidopsis thaliana |
| abscisic acid (ABA) |
could be synthesized directly in |
leaf vasculature |
|
| Cys availability |
limits |
ABA synthesis in the sultr3;1 mutant |
Arabidopsis thaliana |
| cysteine |
is the substrate of |
(ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) |
Arabidopsis thaliana |
| (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
was differentially expressed in |
vegetative and reproductive organs exposed to temperature stress |
Arabidopsis thaliana |
| NaHD20 |
could be involved in a positive feedback loop controlling |
ABA biosynthesis |
Nicotiana attenuata |
| zeaxanthin epoxidase (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) |
is |
crucial enzyme for ABA synthesis |
|
| (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) (aldehyde oxidase) |
catalyzes conversion of |
abscisic aldehyde to ABA |
Arabidopsis thaliana |
| (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) mutant |
is deficient in |
ABA biosynthesis |
Arabidopsis thaliana |
| (CCD4, NCED4, AT4G19170) (Cit.8156.1.S1_at) |
is significantly up-regulated before |
24 hours post-treatment |
Citrus sinensis |
| 9-cis-epoxyxanthophyll |
is oxidatively cleaved by |
9-cis-epoxycarotenoid dioxygenase (NCED) |
|
| xanthoxin |
is oxidized in two further steps to form |
abscisic acid (ABA) |
|
| five VP14-related sequences in Arabidopsis |
encode |
xanthoxin-producing enzymes |
Arabidopsis thaliana |
| genes related to ABA biosynthesis |
were upregulated |
ABA biosynthesis gene expression |
Nicotiana tabacum |
| Flu-induced repression of suberization |
was caused by |
ABA deficiency |
|
| positive feedback loop |
is suggested by |
increased ABA biosynthesis gene expression after ABA exposure |
Arabidopsis thaliana |
| cell-autonomous stomatal response to reduction in rh |
is mediated through |
highly localized production of ABA |
Arabidopsis thaliana |
| transcripts of clock-regulated ABA metabolic genes (ATNCED3, NCED3, SIS7, STO1, AT3G14440) and (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) |
accumulate |
during subjective morning |
Arabidopsis thaliana |
| combination of (ATNCED5, NCED5, AT1G30100) with (ATNCED6, NCED6, AT3G24220) or (ATNCED9, NCED9, AT1G78390) |
did not reduce ABA levels below |
single mutants |
|
| (ATNCED3, NCED3, SIS7, STO1, AT3G14440) expression |
is induced by |
osmotic stress |
Arabidopsis thaliana |
| ced2 mutants |
are defective in |
expression of genes required for ABA synthesis |
Arabidopsis thaliana |
| benzylamine pretreatment |
increases |
ABA biosynthesis gene transcript levels |
Arabidopsis thaliana |
| leaf ABA level of aba2-11 |
was more than 2-fold lower compared with |
Col-0 plants in well-watered conditions |
Arabidopsis thaliana |
| labeling of ABA biosynthetic gene promoters, transcripts, and proteins |
suggested |
significant ABA biosynthesis in phloem |
Arabidopsis thaliana |
| NCED genes |
were either repressed or not changed in |
msi1-cs plants |
Arabidopsis thaliana |
| (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) |
transcription reduced by about 60% in phyb shoots |
ABA biosynthesis |
Arabidopsis thaliana |
| (HY3, OOP1, PHYB, AT2G18790) from shoots |
induces expression of |
ABA biosynthetic genes |
|
| ABA biosynthesis |
occurs in |
various plant tissues |
|
| Cys availability |
affected |
total AO activity |
Arabidopsis thaliana |
| (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) and sultr3;1 mutants |
show |
low ABA level |
Arabidopsis thaliana |
| some closely related SDRs |
were expressed in |
fern guard cell samples |
Ceratopteris richardii; Polypodium vulgare |
| ferns |
synthesise ABA in response to |
dehydration stress |
|
| (AtBRC1, ATTCP18, BRC1, TCP18, AT3G18550) |
upregulates |
(ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
|
| NCED (9-cis-epoxycarotenoid-dioxygenase) |
catalyzes conversion of |
violaxanthin to xanthoxin |
Arabidopsis thaliana |
| 9-cis-epoxycarotenoid dioxygenase (NCED) genes |
encodes |
rate-limiting enzyme of osmostress-induced ABA biosynthesis |
Physcomitrella patens |
| multigene NCED family |
suggests |
precise spatiotemporal regulation of epoxycarotenoid cleavage |
|
| transgenic expression of Arabidopsis thaliana 9-cis-epoxycarotenoid dioxygenase (AtNCED) |
caused abscisic acid (ABA) levels to reach |
428 ng g−1 dry weight at 2 days after stress (DAS) |
Hordeum vulgare |
| ced2 mutant |
is impaired in |
positive feedback regulation of ABA biosynthesis genes |
Arabidopsis thaliana |
| (ATVHA-C, DET3, AT1G12840) mutant |
had impaired |
ABA biosynthesis |
|
| directing ABA biosynthesis to the immature epidermis and stomatal lineage cells |
restored |
plant ABA level |
Arabidopsis thaliana |
| abscisic acid (ABA) |
is |
carotenoid derivative |
|
| isolated palisade mesophyll of Hakea lissosperma |
shows significant increase in |
ABA levels |
Hakea lissosperma |
| ABA-biosynthetic genes |
are not differentially expressed in |
(ATR4, CYP83B1, RED1, RNT1, SUR2, AT4G31500) mutant |
Arabidopsis thaliana |
| (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) gene |
analyzed using |
ABA1-f and ABA1-r primers |
Arabidopsis thaliana |
| (SLG1, AT5G08490) expression |
showed |
limited connectivity with genes converting carotenoids into ABA |
Solanum lycopersicum |
| homologues of (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) |
are restricted to |
angiosperms |
Arabidopsis thaliana; Hordeum vulgare |
| loss of four TOL genes |
does not affect |
ABA biosynthesis |
Arabidopsis thaliana |
| (AtBRC1, ATTCP18, BRC1, TCP18, AT3G18550) |
upregulates |
(B2, BCH2, BETA-OHASE 2, CHY2, AT5G52570) |
|
| water stress |
induces |
abscisic acid (ABA) accumulation in roots |
|
| 9-cis-epoxycarotenoid dioxygenase |
is key enzyme in |
ABA biosynthetic pathway |
|
| (ATHB40, HB-5, HB40, AT4G36740) modification |
did not result in significant changes in the expression of |
ABA biosynthesis and marker genes, including (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
Arabidopsis thaliana |
| ABA DEFICIENT 1 (ABA1, ATABA1, ATZEP, IBS3, LOS6, NPQ2, ZEP, AT5G67030) |
encodes |
zeaxanthin epoxidase |
Arabidopsis thaliana |
| abscisic aldehyde oxidase (AO) 3 (EC 1.2.3.1, (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) ) |
requires |
molybdenum co-factor (Moco) |
|
| Extractable total AO activities of sultr3;1 seedlings |
were decreased significantly in comparison with that of |
wild-type |
Arabidopsis thaliana |
| maturation of the (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) apoenzyme |
requires |
(ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) bound S-Moco |
Arabidopsis thaliana |
| 10-fold decrease of Cys within 1 day of sulfate starvation in cell suspension cultures of Arabidopsis |
strongly indicates that |
decreased cytosolic Cys pool due to limited sulfate supply can limit (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) activity |
Arabidopsis thaliana |
| de novo biosynthesis of ABA |
increases |
abscisic acid (ABA) levels |
|
| (CCD4, NCED4, AT4G19170) |
is thought to be important for |
regulating ABA biosynthesis |
Arabidopsis thaliana |
| exogenous feeding of Cys for 6 h |
increased |
extractable AO activity approximately five-fold in wild-type seedlings |
Arabidopsis thaliana |
| (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
expression level is reduced in transgenic lines in the absence of |
salinity stress |
Arabidopsis thaliana |
| Disruption of other genes of the SULTR3 subfamily |
resulted in |
significantly decreased ABA levels |
Arabidopsis thaliana |
| disruption of SULTR3;1 |
affects |
non-stressed induced ABA biosynthesis |
Arabidopsis thaliana |
| short-chain dehydrogenase/reductase |
catalyzes formation of |
abscisic aldehyde |
Arabidopsis thaliana |
| ACBP1-OX lines |
show increased expression of |
two ABA biosynthesis genes |
Arabidopsis thaliana |
| knock-out of SULTR3;1 function |
strongly affects |
ABA levels |
|
| ABSCISIC ALDEHYDE OXIDASE 3 (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
requires |
ABA3-bound sulfurated molybdenum co-factor (S-Moco) |
Arabidopsis thaliana |
| (ATDOG1, DOG1, GAAS5, GSQ5, AT5G45830) |
indirectly enhances |
ABA synthesis |
Arabidopsis thaliana |
| ABA levels in the mutant seedlings |
were lower in |
mutant seedlings |
Arabidopsis thaliana |
| molybdenum co-factor (Moco) |
must be sulfurated to act as the co-factor of |
abscisic aldehyde oxidase (AO) 3 (EC 1.2.3.1, (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) ) |
|
| disruption of SULTR3;1 function |
leads to |
decreased ABA levels |
Arabidopsis thaliana |
| ectopic expression of SULTR3;1 |
reverts |
sultr3;1 mutant phenotypes |
Arabidopsis thaliana |
| cysteine (Cys) |
is the sulfur donor for |
Moco sulfurase (EC 2.8.1.9, (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) ) |
|
| sulfate supply |
strongly affects |
ABA levels |
|
| (ABA4, AT1G67080) |
was differentially expressed in |
vegetative and reproductive organs exposed to temperature stress |
Arabidopsis thaliana |
| 9-cis-epoxycarotenoid dioxygenase |
is |
crucial enzyme for ABA synthesis |
|
| dehydration treatment |
induced |
transcript levels of (ATNCED3, NCED3, SIS7, STO1, AT3G14440) |
Capsicum annuum; Arabidopsis thaliana |
| NDGA treatment |
causes substantial changes in |
ABA content in receptacles |
Fragaria × ananassa |
| defective chloroplast ribosome biogenesis |
leads to impairment of |
ABA biosynthesis |
Arabidopsis thaliana |
| sultr3;1 mutant |
results in significantly decreased |
abscisic acid (ABA) levels |
Arabidopsis thaliana |
| Moco sulfurase (EC 2.8.1.9, (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) ) |
catalyzes |
sulfuration of Moco |
|
| Cys availability |
affects |
ABA synthesis |
Arabidopsis thaliana |
| overexpression of IbZFP1 |
increased activity of |
9-cis-epoxycarotenoid dioxygenase |
Arabidopsis thaliana |
| (AAO1, AO1, AOalpha, AT-AO1, ATAO, AtAO1, AT5G20960) (AAO2, AO3, AOgamma, atAO-2, AtAO3, AT3G43600) and (AAO4, AO4, ATAO-4, ATAO2, AT1G04580) |
are not involved in |
ABA biosynthesis |
Arabidopsis thaliana |
| key genes of ABA biosynthesis |
are consistently suppressed in |
rh3-4 mutant |
Arabidopsis thaliana |
| abscisic aldehyde oxidase (AO) 3 (EC 1.2.3.1, (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) ) |
catalyzes |
conversion of abscisic aldehyde to ABA |
|
| SULTR3;1 loss-of-function mutants |
have |
decreased ABA level |
Arabidopsis thaliana |
| exogenous application of Cys |
is able to rescue |
phenotype of lowered ABA content in the sultr3;1 mutant |
Arabidopsis thaliana |
| ABSCISIC ALDEHYDE OXIDASE 3 (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
catalyzes |
final step of ABA synthesis |
Arabidopsis thaliana |
| decreased ability to transport sulfate into the chloroplast |
results in |
low ABA |
Arabidopsis thaliana |
| (ABA3, ACI2, ATABA3, AtLOS5, GIN5, LOS5, SIR3, AT1G16540) |
is crucial for |
ABA synthesis |
Arabidopsis thaliana |
| SiNAC1 overexpression |
elevates |
(ATNCED2, NCED2, AT4G18350) |
Arabidopsis thaliana |
| 30A region on chromosome 1 |
includes |
(ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) gene |
Arabidopsis thaliana |
| guard cells |
possess |
entire ABA biosynthesis pathway |
Arabidopsis thaliana |
| (ATNCED5, NCED5, AT1G30100) |
contributes with NCED3 to increased ABA levels in vegetative tissues upon |
water deficit |
Arabidopsis thaliana |
| defect in (ATNCED6, NCED6, AT3G24220) expression in endosperm |
had major impact with 50% reduction of |
ABA levels in dry seeds |
|
| expression of (ATNCED5, NCED5, AT1G30100) in apical vegetative tissues |
contributes to |
the basal ABA production that promotes plant growth and induces stress tolerance |
Arabidopsis thaliana |
| (ANAC029, ATNAP, NAP, AT1G69490) |
activates directly the transcription of |
(AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
Arabidopsis thaliana |
| ABA biosynthesis genes |
were almost completely lost in |
endoparasitic Sapria |
Sapria |
| sultr3;1 mutant |
results in significantly decreased |
abscisic acid (ABA) levels in seedlings and seeds |
Arabidopsis thaliana |
| abscisic aldehyde |
is converted to |
abscisic acid (ABA) |
|
| synthesis of the phytohormone ABA in germinating seeds |
is dependent on |
sufficient Cys production/availability |
Arabidopsis thaliana |
| ABA biosynthesis |
increases during |
water stress |
|
| ABA biosynthesis |
may occur outside |
the leaf |
|
| tissue ABA levels |
were |
normal |
Lotus japonicus |
| carotenoid-derived hormone ABA |
was measured at lower levels in |
fruit pericarp of tomato mutants lacking SlG2 and particularly SlG3 |
Solanum lycopersicum |
| xanthoxin |
is oxidized by |
short-chain alcohol dehydrogenase (ABA2, ATABA2, ATSDR1, GIN1, ISI4, SDR1, SIS4, SRE1, AT1G52340) |
|
| water deficit |
triggers |
ABA biosynthesis |
Hakea lissosperma; Saxegothaea conspicua; Podocarpus latifolius; Cephalotaxus harringtonii; Amentotaxus formosana |
| high (Spd + Spm)/Put ratio |
promotes the expression of |
(ATCCD1, ATNCED1, CCD1, NCED1, AT3G63520) |
Fragaria × ananassa |
| SlHY5 |
directly bound to promoter of |
SlNCED6 (ABA biosynthetic enzyme) |
Solanum lycopersicum |
| xanthoxin |
is translocated to |
cytoplasm |
|
| bgd/ (BDG1, CED1, AT1G64670) mutant |
exhibits altered stress-induced accumulation of |
ABA-biosynthesis transcripts |
|
| ABA levels in transgenic barley with AtNCED expression |
rose sooner than in |
wild-type plants |
Hordeum vulgare |
| (CER9, SUD1, AT4G34100) mutant |
has |
increased ABA levels |
Arabidopsis thaliana |
| guard cells and phloem companion cells |
are functionally redundant in |
ABA production |
Arabidopsis thaliana |
| ABA biosynthesis in guard and phloem companion cells |
is functionally redundant in |
restoring whole-plant stomatal conductance of aba2-11 plants |
Arabidopsis thaliana |
| ABA synthesis |
is widespread among |
algal species |
|
| ConcA pretreatment |
significantly decreases |
(ATNCED3, NCED3, SIS7, STO1, AT3G14440) transcript level |
Arabidopsis thaliana |
| (VHA-A2, AT2G21410) (VHA-A3, AT4G39080) double mutant |
does not show significant change in |
ABA biosynthesis gene expression |
Arabidopsis thaliana |
| 9′-cis-epoxycarotenoid deoxygenase |
produces |
xanthoxin |
|
| ABA content |
is dramatically induced under |
drought stress in both wild type and (AtMAX2, MAX2, ORE9, PPS, AT2G42620) |
Arabidopsis thaliana |
| abscisic acid aldehyde oxidase3 (AAO3, AOdelta, At-AO3, AtAAO3, AT2G27150) |
uses |
molybdenum cofactor |
|
| 9-cis Epoxycarotenoid Dioxygenase Defective2 (CED2) |
is |
unique regulator of ABA biosynthesis |
Arabidopsis thaliana |
| [Ca2+]cyt |
is second messenger involved in regulating |
ABA biosynthesis |
|
| (AHG3, ATPP2CA, PP2CA, AT3G11410) mutant seeds |
contain |
high levels of abscisic acid (ABA) |
Arabidopsis thaliana |