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nitrogen assimilation

10635 relationships annotated with this phrase. Showing first 500 of 10635.
Source entity Relationship Target entity Species
dtn1 mutants show down-regulated expression of (ATNR2, B29, CHL3, NIA2, NIA2-1, NR, NR2, AT1G37130)
ammonia assimilated into glutamine Hordeum vulgare
TaLBD41 knockdown increases nitrogen assimilation Triticum aestivum
TaLBD41-RNAi lines exhibited higher GOGAT enzyme activity in roots Triticum aestivum
ammonia is used to produce ureides
glutamine synthetase (GS)/glutamate synthase (GOGAT) cycle converts inorganic N into organic N
high-affinity nitrate uptake is reduced in Landsberg erecta grown under high-nitrate conditions Arabidopsis thaliana
Gln/His levels in Landsberg erecta are reduced in response to low nitrate Arabidopsis thaliana
incomplete TCA cycle involved in provision of carbon skeletons for nitrogen assimilation Hordeum vulgare
TaLBD41 RNAi significantly influenced TaNADH-GOGAT expression under both nitrate-deficient and nitrate-sufficient conditions Triticum aestivum
(GLC, AT1G65450) and (ATHXK1, GIN2, HXK1, AT4G29130) do not influence nitrate-mediated (ACH1, ATNRT2.1, ATNRT2:1, LIN1, NRT2, NRT2.1, NRT2:1, NRT2;1AT, AT1G08090) expression significantly Arabidopsis thaliana
glucose treatment induces expression of (ATNR2, B29, CHL3, NIA2, NIA2-1, NR, NR2, AT1G37130)
(AT.EIF4E1, CUM1, EIF4E, eIF4E1, AT4G18040) modulates translation of nitrogen assimilation-related mRNAs in response to nitrate Arabidopsis thaliana
large amount of nitrate reduction occurs in leaf Glycine max
nitrate transported to the shoot can be assimilated immediately into amino acids
high-affinity nitrate uptake in gin2-1 seedlings grown on high nitrate is significantly decreased compared with Landsberg erecta Arabidopsis thaliana
NR is encoded by two genes, (GNR1, NIA1, NR1, AT1G77760) and (ATNR2, B29, CHL3, NIA2, NIA2-1, NR, NR2, AT1G37130)
ammonium is assimilated by plant cells through glutamine and asparagine synthetases
reduced expression of several nitrate assimilatory genes in gin2-1 suggests that nitrate-responsive growth might be affected in gin2-1 plants Arabidopsis thaliana
transcript for (ATHNIR, NIR, NIR1, AT2G15620) is not down-regulated by low Fe Arabidopsis thaliana
inorganic nitrogen is primarily assimilated into glutamate (Glu)
inorganic nitrogen is primarily assimilated into aspartate (Asp)
Gln/His levels increase in response to increased nitrate Arabidopsis thaliana
elevated ammonia level must consequently be assimilated to avoid toxic effects in the cell Solanum lycopersicum
shortfall of reduced ferredoxin would otherwise cause accumulation of nitrite in dark
earlier studies did not find decrease in nitrogen (N) content in elevated CO2
nitrogen availability affects accumulation of fumarate and malate Arabidopsis thaliana
nitrate reductase activity is higher in (ATXDH1, XDH1, AT4G34890) leaves compared with wild-type leaves Arabidopsis thaliana
K19624 line shows up-regulation of (GPP2, GS1, AT5G57440) transcript Arabidopsis thaliana
K16331 line shows up-regulation of (GPP2, GS1, AT5G57440) transcript Arabidopsis thaliana
SH13 line shows up-regulation of (FD-GOGAT, GLS1, GLU1, GLUS, AT5G04140) transcript Arabidopsis thaliana
(GLB1, PII, AT4G01900) protein is involved in control of N assimilation Escherichia coli
gin2-1 mutant primarily influences amino acid production in response to nitrate levels Arabidopsis thaliana
(ATRAPTOR1B, RAPTOR1, RAPTOR1B, AT3G08850) leaf tissue shows unchanged or slightly reduced activity of glutamine synthetase (Gln synthetase) Arabidopsis thaliana
nitrate-responsive (ACH1, ATNRT2.1, ATNRT2:1, LIN1, NRT2, NRT2.1, NRT2:1, NRT2;1AT, AT1G08090) expression is significantly reduced in gin2-1 mutant in high (GLC, AT1G65450) levels Arabidopsis thaliana
Glu/Asn levels in gin2-1 are substantially higher than those observed in Landsberg erecta in both low- and high-nitrate conditions Arabidopsis thaliana
Gln/His levels in gin2-1 remain high in both high- and low-nitrate conditions Arabidopsis thaliana
chloroplastic Glu 2 oxoglutarate aminotransferase (GOGAT) showed no changes in abundance in response to Fe depletion Arabidopsis thaliana
pyruvate rescues Glc-responsive expression of (ATHNIR, NIR, NIR1, AT2G15620) Arabidopsis thaliana
higher nitrate reductase activity in (ATXDH1, XDH1, AT4G34890) leaves indicates need for nitrate assimilation products Arabidopsis thaliana
shikimate rescues Glc response of AMT1.3 Arabidopsis thaliana
ammonium is subsequently incorporated into glutamate Arabidopsis thaliana
photorespiratory recycling of N complicates regulation of N assimilation
nitrate reductase (NR) catalyzes first step of nitrate assimilation toward biosynthesis of ammonia Arabidopsis thaliana
plant sensing of NO3− induces multiple NO3− assimilation pathway genes, importantly NIA
fructose treatment induces expression of (ATNR2, B29, CHL3, NIA2, NIA2-1, NR, NR2, AT1G37130)
inorganic nitrogen is primarily assimilated into glutamine (Gln)
Asn levels in gin2-1 compared with Landsberg erecta are not altered in response to (GLC, AT1G65450) Arabidopsis thaliana
level of NR activity was always higher in mutant line Arabidopsis thaliana
FOX lines show higher levels of glutamine Arabidopsis thaliana
NADH level plays a critical role in nitrate and ammonia assimilation
rate of nitrate assimilation is typically much higher in light
changes in transcription results in higher rate of nitrate assimilation in light
(FD-GOGAT, GLS1, GLU1, GLUS, AT5G04140) is essential for plant growth and development Oryza sativa
glutamine synthetase (GS) catalyzes ATP-dependent addition of ammonium (NH4+) to the carboxyl group of glutamate (Glu)
sodium tungstate treatment leads to two-fold reduction in nectar NO accumulation nitric oxide (NO) in nectar Cucurbita pepo
glutamine synthetase (ATGSL1, GLN2, GS2, AT5G35630) was preferentially expressed in bundle sheath and mesophyll cells, relative to veinal cells Oryza sativa
nitrate reductase is subject to regulation at translation, protein degradation, and protein phosphorylation
diurnal changes in organic acids biosynthesis are synchronized to nitrate assimilation
nitrate reductase and nitrite reductase generate ammonium
(FUM2, AT5G50950) knockout lines have impaired growth on high nitrogen growth Arabidopsis thaliana
respiration is a major function during N assimilation in the illuminated leaves of C3 plants
rate of nitrate assimilation is typically much lower in dark
increase in N assimilation rate is most likely to require enhanced flux through respiratory pathways
(ATHNIR, NIR, NIR1, AT2G15620) is an Fd-dependent gene Fd-dependent metabolic pathway Oryza sativa
mitochondrially localized proteins have a profound impact on nitrogen metabolism
assimilation of inorganic nitrogen requires reducing equivalents, ATP and C skeletons
photorespiration is a major function during N assimilation in the illuminated leaves of C3 plants
requirement for ATP affects nitrogen (N) assimilation
requirement for reductant affects nitrogen (N) assimilation
nitrate directly regulates synthesis of 2OG
FD is required for nitrogen assimilation
nitrate (NO3−) reduction occurs in shoots
nitrate and ammonium are reduced to amino acids
inorganic nitrogen (N) assimilation requires significant amounts of fixed carbon (C)
weak (FD-GOGAT, GLS1, GLU1, GLUS, AT5G04140) mutant abc1-1 shows nitrogen-deficient syndrome Oryza sativa
enzymes involved in synthesis of organic nitrogen (N) from inorganic nitrogen (N) control nitrogen assimilation efficiency (NAE)
transgenic poplar with ectopic expression of pine cytosolic GS1a exhibit enhanced free glutamine in leaves Populus
N assimilation through the GS/GOGAT pathway is essential for life
respiration of sucrose provides energy and C skeletons for nitrogen assimilation in roots
darkening causes inactivation of nitrate reductase
illuminated leaves of Brassica napus incubated with 13CO2 and 15N-ammonium nitrate show de novo incorporation of N into glutamate and glutamine Brassica napus
conversion of one molecule of nitrate to ammonium consumes six reduced ferredoxins
N assimilation through the GS/GOGAT pathway generates glutamate and glutamine
glutamate synthase (GOGAT) synthesizes glutamate (Glu)
aspartate (Asp) in nectar is the most abundant amino acid in evening nectar post-secretion stage Cucurbita pepo
sodium tungstate treatment does not change nectary alanine levels alanine (Ala) in nectaries Cucurbita pepo
nitrate transporters NRT1.4, NRT1.1A, (AIT1, AtNPF4.6, ATNRT1:2, NPF4.6, NRT1.2, NRT1:2, NTL1, AT1G69850) and (ATNRT2.3, NRT2.3, AT5G60780) were more highly expressed in bundle sheath and veinal cells compared with mesophyll cells Oryza sativa
FOX lines show higher levels of glutamate Arabidopsis thaliana
ammonium-reassimilation processes acts throughout different stages of leaf age Arabidopsis thaliana
nitrate (NO3−) reduction occurs in roots
nitrite reductase (ATHNIR, NIR, NIR1, AT2G15620) is the only expressed isoform in Cucurbita pepo nectaries Cucurbita pepo
glutamine (Gln) in nectaries remains constant from early secretion to post-secretion post-secretion stage Cucurbita pepo
sodium tungstate inhibits enzymes that use molybdate-based cofactors molybdate-dependent enzymes
photosynthesis plays a key role in nitrogen assimilation
nitrogen assimilation is integrated with photosynthesis, photorespiration and respiration
inorganic nitrogen (N) assimilation requires significant amounts of ATP
GS (glutamine synthetase) requires ATP
aspartate (Asp) in nectaries decreases by nearly eight-fold from pre-secretion to mid-secretion mid-secretion stage Cucurbita pepo
total nectar amino acids does not vary significantly at any time point measured nectar secretion stages Cucurbita pepo
glutamine synthetase-glutamate synthase (GS-GOGAT) cycle is primary pathway related to NH4+ assimilation and remobilization
Arabidopsis plants over-expressing (ATHNIR, NIR, NIR1, AT2G15620) exhibit increased (ATHNIR, NIR, NIR1, AT2G15620) activity Arabidopsis thaliana
activity of sections of the tricarboxylic acid (TCA) cycle in the light is likely to be highly important for supply of carbon skeletons required for nitrogen assimilation
daytime respiration provides 2-oxoglutarate (2OG) required for N assimilation
glutamine (Gln) in nectar is highest at peak secretion peak nectar secretion stage Cucurbita pepo
potassium nitrate (KNO3) feeding increases NO production rate in dissected flowers nitric oxide (NO) production Cucurbita pepo
gene expression in rice bundle sheath is tuned to specialize in nitrate assimilation and amino acid biosynthesis Oryza sativa
plants have rates of nitrate assimilation that dwarf those in microbes
conversion of one molecule of nitrate to ammonium consumes one NADH
operation of photorespiration affects nitrogen (N) assimilation
elevated atmospheric carbon dioxide (CO2) concentration inhibits nitrate assimilation Triticum aestivum; Arabidopsis thaliana
glutamine (Gln) is one of the four most abundant amino acids in Cucurbita pepo nectaries and nectar Cucurbita pepo
ammonium is nitrogen source involved in energy-intensive reactions
glutamate synthase (GOGAT) can use ferredoxin (Fd)
alanine aminotransferase (AlaAT) catalyzed transamination produces alanine (Ala) and α-ketoglutarate (α-KG)
GOGAT1 gene is involved in NH4+ assimilation Oryza sativa
embryo axes fed high exogenous concentrations of ammonium (30 mM) in presence of methionine sulphoximine (MSX) under normoxia resulted in 15N was incorporated into three amino acids, glutamate, aspartate, and alanine Medicago truncatula
nitrate reductase (NR) is first enzyme of primary N assimilation in plants
nitrogen uptake is followed by nitrogen assimilation
level of nitrate reductase protein results in higher rate of nitrate assimilation in light
nitrate (NO3−) reduction to nitrite (NO2−) is catalyzed by NAD(P)H-dependent nitrate reductase (NR)
nitrite reductase (ATHNIR, NIR, NIR1, AT2G15620) expression is nearly 10-fold higher at peak secretion compared with pre-secretory stages peak nectar secretion stage Cucurbita pepo
nitrate reductase 1 (AtNR1) is induced in nectaries during secretion peak nectar secretion stage Arabidopsis thaliana
nitrite reductase (ATHNIR, NIR, NIR1, AT2G15620) was more highly expressed in bundle sheath and veinal cells compared with mesophyll cells Oryza sativa
nitrate reductase (NR) expression is nearly 10-fold higher at peak secretion compared with pre-secretory stages peak nectar secretion stage Cucurbita pepo
glutamate (Glu) in nectaries decreases from pre-secretion to mid-secretion mid-secretion stage Cucurbita pepo
15 N/ 14 N fractionation may occur during ammonium assimilation by glutamine synthetase durum wheat
alanine (Ala) in nectar is highest at early secretion stage early secretion stage Cucurbita pepo
total nectary amino acids are two-fold higher at post-secretion compared with pre-secretion post-secretion stage Cucurbita pepo
glutamate (Glu) is one of the four most abundant amino acids in Cucurbita pepo nectaries and nectar Cucurbita pepo
potassium nitrite (KNO2) feeding does not increase NO production in pre-secretion nectaries nitric oxide (NO) production in pre-secretion nectaries Cucurbita pepo
potassium nitrate (KNO3) feeding leads to over two-fold higher NO accumulation in nectar nitric oxide (NO) in nectar Cucurbita pepo
post-translational regulation of nitrate reductase is capable of regulating nitrate assimilation in mutants where the number of functional NIA gene copies has been decreased four-fold
use of oxaloacetate for nitrogen assimilation is connected with carboxylation of phosphoenolpyruvate (PEP)
glutamate dehydrogenase (GDH) directly adds ammonium (NH4+) to α-ketoglutarate (α-KG)
nitrate reductases ( (GNR1, NIA1, NR1, AT1G77760) and (ATNR2, B29, CHL3, NIA2, NIA2-1, NR, NR2, AT1G37130) ) were more highly expressed in bundle sheath and veinal cells compared with mesophyll cells Oryza sativa
rhizodermis-localized glutamine synthetase (GS) assimilates ammonium (NH4+)
glutamate (Glu) is the amine donor for the synthesis of many amino acids
(ATNRT2.3, NRT2.3, AT5G60780) gene was most abundant in bundle sheath cells Oryza sativa
glutamine synthetase (GS) converts ammonium (NH4+) into glutamine (Gln)
reducing power is essential factor when nitrogen (N) is available in highly oxidized form of nitrate
higher in vitro activity of (AAT, ATAAT, MEE17, PAT, AT2G22250) supports increased nitrogen fixation at pod formation was clearly connected with higher CO2 fixation and improved use of refixed carbon for nitrogen assimilation
embryo axes fed high exogenous concentrations of ammonium (30 mM) in presence of methionine sulphoximine (MSX) under hypoxia resulted in 15N was incorporated into three amino acids to a lesser extent than under normoxia Medicago truncatula
potassium nitrite (KNO2) feeding leads to substantial increase in NO production in peak secretion nectaries nitric oxide (NO) production Cucurbita pepo
nitrate-inducible ferredoxin was preferentially expressed in bundle sheath and veinal cells Oryza sativa
nitrite reductase (ATHNIR, NIR, NIR1, AT2G15620) can use NAD(P)H in the cytosol
NAD(P)H-cytochrome c reductase (diaphorase, EC 1.6.6.1-3) is component of NAD(P)H–nitrate reductase (NR) complex Chlamydomonas
(AtNIT2, NIT2, AT3G44300) mutant strain was analyzed under mixotrophic medium containing ammonium nitrate Chlamydomonas
nitrate is reduced to nitrite
rice has OsNADH-GOGAT1 and OsNADH-GOGAT2 Oryza sativa L.
aspartate (Asp) in nectaries increases by nearly seven-fold from early secretion to post-secretion post-secretion stage Cucurbita pepo
nitric oxide (NO) is detected in all replicates of peak secretion nectaries peak nectar secretion stage nectaries Cucurbita pepo
glutamate dehydrogenase (GDH) has low affinity to ammonium (NH4+)
wild-type strain contains similar levels of malate and fumarate to nia1nit2 double mutant strain Chlamydomonas
ammonium (NH4+) is typically assimilated directly into amino acids
ammonium ion (NH4+) is preferred nitrogen source for rice and many other plant species over nitrate
glutamine concentrations in shoots and roots are many fold greater than NH4+ concentration in respective tissues Oryza sativa
glutamine synthetase/glutamate synthase pathway assimilates ammonium (NH4+)
aspartate aminotransferase (AspAT) catalyzed transamination produces aspartate (Asp) and α-ketoglutarate (α-KG)
(AMT1, ASA1, JDL1, TRP5, WEI2, AT5G05730) /2 genes are involved in NH4+ uptake Oryza sativa
increased nitrogen fixation at pod formation was clearly connected with improved use of refixed carbon for nitrogen assimilation
enzymic capacity of NO2- reduction pathway exceeds maximum rate observed in leaves
nodule N assimilation had to be almost completely supported by oxaloacetate from PEPC activity
Arabidopsis glutamine synthetase (GS) isoforms have different kinetic properties and are differentially regulated by ammonium (NH4+) Arabidopsis thaliana
incorporation of 15N into glutamate occurred only when ammonium was supplied at high exogenous concentrations ranging between 20 mM and 30 mM
nitrate concentration at about 5 or 10.5 mM is recommended to cultivate plants with nitrate assimilation as main or almost exclusive N source Medicago truncatula
ferredoxins participate in nitrogen assimilation
glutamate synthase (GOGAT) uses glutamine (Gln) and α-ketoglutarate (α-KG)
nitrite reductase (ATHNIR, NIR, NIR1, AT2G15620) activity does not change at any time point measured nectary development Cucurbita pepo
Lotus plants constitutively expressing GS do not show increased GS activity in roots Lotus
NR-deficient strains cannot grow on nitrate (NO3-) as sole nitrogen source Chlamydomonas
nit2.1 mutant has similar growth rates to nit2.2 mutant Chlamydomonas
ammonium (NH4+) may also be assimilated by glutamate dehydrogenase (GDH)
chloroplast carries out nitrogen assimilation
glutamine synthetase/glutamate synthase pathway ensures production of amino acids
nitrate assimilation is dependent on carbon skeletons generated from mitochondria Arabidopsis thaliana
NH4+ uptake increases ammonium assimilation in the shoot Oryza sativa
accumulation of nitrogen in plants is affected by capacity of roots for nitrogen assimilation Oryza sativa
recent work in biochemistry and functional genetics of leaf nitrogen assimilation has provided key information about metabolite concentrations
300 mM NaCl the activity of glutamine synthetase decreases at glutamine synthetase activity Triticum aestivum
amino acids result from nitrogen assimilation
pgl3-1 mutant roots when starved of N and then resupplied with nitrate were at least as efficient at assimilating as wild type roots Arabidopsis thaliana
nitrogen accumulation in plants is affected by capacity of roots for nitrogen assimilation Oryza sativa
nitric oxide is intermediate of nitrogen assimilation
Arabidopsis thaliana gdh1-1 null mutant submitted to excess exogenous ammonium (20 mM NH4+) was proposed to show GDH plays non-redundant role in ammonia assimilation Arabidopsis thaliana
nitrogen fixed into ammonia is assimilated into glutamine Azolla filiculoides
NADH/NAD ratio controls NO3- mobilization
nitrogen assimilation efficiency plays central role in improving agronomic performance of crop and forest species
GS/GOGAT pathway is the only assimilatory pathway of inorganic nitrogen in plants
nitrate (NO3-) reduction leads to ammonia (NH3)
NR-deficient strains are not able to grow on nitrate as sole source of nitrogen Chlamydomonas
nitrogen assimilation into amino acids and proteins requires synthesis of organic acids in tricarboxylic acid cycle Chlamydomonas
glutamate dehydrogenase TaGDH2 gene expression showed slow but significant steady increase in expression until week 5 Triticum aestivum
nitrogen assimilation pathway consumes reduced ferredoxin (Fd−)
nia1nit2 double mutant strain displays unchanged growth rate in ammonium nitrate medium Chlamydomonas
total free amino acid content is similar in NR-deficient and wild-type strains Chlamydomonas
alanine aminotransferase is involved in metabolism of nitrogen assimilation processes Brassica napus L.
cytosolic reduction of nitrate to nitrite may consume reductant exported from chloroplast or mitochondria
plastid-localized version of phosphoenolpyruvate carboxylase (PEPC), rice Osppc4 is involved in providing organic acids for ammonium assimilation in leaves Oryza sativa
glutamine synthetase (GS, EC 6.3.1.2) catalyzes transfer of ammonia to glutamate Chlamydomonas
GDH gene is involved in nitrogen assimilation pathway Oryza sativa
transgenic lines have significantly greater total glutamine concentrations Oryza sativa
present work focuses on importance of N assimilation mechanisms in relation to differential N source provided Arabidopsis thaliana
three nitrate reductase (NR) genes and one glutamine synthetase (GS1) encoding gene repression observed in maize roots Zea mays
total GS protein (az21) levels were similar in Azolla filiculoides cyanobiont and cultured Nostoc PCC 73102 Azolla filiculoides; Nostoc PCC 73102
glnA transcription levels in Azolla caroliniana cyanobiont were reported to be ~10% of levels in free-living Nostoc and Anabaena Azolla caroliniana; Nostoc; Anabaena
S deficiency down-regulates expression of nitrate reductase Nicotiana tabacum
DOF proteins participate in control of genes involved in nitrogen assimilation
NO3− reduction to NH4+ requires energy cost
glutamate dehydrogenase (GDH) might be collaborating in NH4+ assimilation
cytosolic glutamine synthetase genes TaGse and TaGSr showed expression pattern similar to some of the NPF genes Triticum aestivum
15N incorporation into glutamate, aspartate, and alanine under excess ammonium in presence of methionine sulphoximine (MSX) suggests in absence of GS activity, under excess ammonium, glutamate would be synthesized through GDH aminating activity Medicago truncatula
three nitrate reductase (NR) genes and one glutamine synthetase (GS1) encoding gene significant repression of starting at Zea mays
glutamate synthase (GOGAT) converts glutamine (Gln) and 2-oxoglutarate into two molecules of glutamate
experiment with 30 mM (15NH4)2SO4 added or not with 5 mM MSX under normoxia or hypoxia was carried out determination of GDH role in nitrogen assimilation Medicago truncatula
cytosolic glutamine synthetase (GS) catalyzes assimilation of ammonium to glutamine Agrostis scabra; Agrostis stolonifera
gdh1-1 mutant plants were not analysed for capacity to assimilate ammonium Arabidopsis thaliana
recent work in biochemistry and functional genetics of leaf nitrogen assimilation has provided key information about gene expression
nitrate reductase (NR) catalyzes reduction of nitrate (NO3−)
TaLBD41 directly regulates expression of TaNADH-GOGAT-3B Triticum aestivum
nitrate (NO3-) uptake and assimilation involves nitrate transport into cells
ammonium nutrition increases glutamate dehydrogenase aminating activity Arabidopsis thaliana
glutamine synthetase activity might contribute to differences in rates of nitrogen uptake per root surface area Oryza sativa
soil nitrate concentration affects plant N nutrition Medicago truncatula
TaLBD41-RNAi plants had significantly higher mRNA levels of TaNR1.2 Triticum aestivum
sucrose treatment induces expression of (ATNR2, B29, CHL3, NIA2, NIA2-1, NR, NR2, AT1G37130)
exposure of nitrate-starved roots to nitrate activates expression of nitrate uptake genes (NRT)
NR-deficient strains display similar growth rates to wild-type strains Chlamydomonas
photosynthetic CO2 assimilation can be influenced by reductant consumed by foliar nitrate assimilation Arabidopsis thaliana
storage protein synthesis includes TCA cycle-derived carbon skeletons (2-oxoglutarate) for nitrogen assimilation Hordeum vulgare
GS is glutamine synthetase
glutamate dehydrogenase aminating activity in nitrate-fed plants is positively correlated with ammonium content Arabidopsis thaliana
small gene family encodes cytosolic GS (GPP2, GS1, AT5G57440)
plants utilize nitrate for nitrogen assimilation
(GNR1, NIA1, NR1, AT1G77760) mutant strain was analyzed under mixotrophic medium containing ammonium nitrate Chlamydomonas
wild-type strain displays unchanged growth rate in ammonium nitrate medium Chlamydomonas
low nitrate (LN) supply decreases shoot nitrogen concentration (%ShootN)
TaNIR gene expression increased slightly within 2 weeks Triticum aestivum
TaGS2 (plastidic protein localization) expression followed opposite pattern by decreasing at week 6 Triticum aestivum
NAD(P)H–nitrate reductase (NR) complex catalyzes nitrate reduction Chlamydomonas
fumarate level was measured in all different strains Chlamydomonas
nitrogen cannot be directly assimilated by plants
glutamate dehydrogenase aminating activity in ammonium-fed plants is positively correlated with ammonium content Arabidopsis thaliana
NPF expression in leaf 2 after anthesis is put in context of nitrogen assimilation Triticum aestivum
moderate salinity levels (100–150 mM NaCl) in wheat decrease levels of nitrate reductase Triticum aestivum
nit2.2 mutant strain displays same low amount of intracellular nitrate as wild-type strain Chlamydomonas
nitrate reductase catalyzes reduction of nitrate
plants grown in 30 μM NH4+ have lowest glutamine concentrations Oryza sativa
rice has identified OsGS1;1, OsGS1;2, and OsGS1;3 Oryza sativa L.
glutamate dehydrogenase protein is increased in ammonium-fed plants Arabidopsis thaliana
better provision of organic acids supports N assimilation in nodules
ammonium (NH4+) and nitrate (NO3-) are major primary sources of nitrogen
glutamine synthetase/glutamate synthase cycle (GS/GOGAT cycle) is predominant route of nitrogen assimilation Chlamydomonas
(ATHNIR, NIR, NIR1, AT2G15620) encodes nitrite reductase (ATHNIR, NIR, NIR1, AT2G15620) Chlamydomonas
nia1nit2 double mutant strain displays similar growth pattern to wild type under NH4NO3 Chlamydomonas
intracellular nitrate probably stimulates or induces transport system IV Chlamydomonas
increase in reductant within cytosol drives foliar NO3– assimilation Arabidopsis thaliana
drought and salinity impact on nitrogen assimilation
(GPP2, GS1, AT5G57440) and (ATGSL1, GLN2, GS2, AT5G35630) enzymes aid assimilation of cytosolic and chloroplast NH4+ Oryza sativa
ammonium (NH4+) assimilation requires less energy than nitrate (NO3–) assimilation
wheat glutamine synthetase TaGS1 expression showed increased post-anthesis expression at week 2 Triticum aestivum
all strains were grown in presence of nitrate (NO3-) or ammonium (NH4+) Chlamydomonas
ammonium assimilation is unaffected in NR-deficient mutant strains Chlamydomonas
increased malate and fumarate accumulation in nia1-deficient line suggests induction of organic acid biosynthesis for de novo synthesis of amino acids Chlamydomonas
nitrate assimilation is dependent on reductant generated from chloroplast Arabidopsis thaliana
OsAMT1;1 transgenic lines increases ammonium assimilation in the shoot under suboptimal, optimal, and high NH4+ levels in the medium Oryza sativa
nitrate reductase activity in nitrate-fed plants is positively correlated with ammonium content Arabidopsis thaliana
nitrate triggers immediate induction of expression of genes involved in nitrate assimilation
altered nitrogen assimilation contributes to improved growth in nitrogen-limiting conditions Arabidopsis thaliana
reduced carbon flow through plastidial OPPP causes inability to efficiently assimilate into organic molecules Arabidopsis thaliana
nitrogen assimilation in cyanobiont is possibly mainly regulated via GS activity Azolla filiculoides
ammonium is rapidly incorporated into amino acids Chlamydomonas
enhancement of nitrogen assimilation efficiency (NAE) through overexpression of enzymes may result in improvements to nitrogen-use efficiency (NUE) or nitrogen harvest index of oilseed rape Brassica napus L.
GS1.1 gene is involved in nitrogen assimilation pathway Oryza sativa
glutamine synthetases are responsible for assimilation and re-assimilation of ammonium in young and old leaves, respectively
higher rate of nitrate assimilation in mutant younger leaves overcomes absence of ammonium originated from unimpaired purine catabolism Arabidopsis thaliana
nia1nit2 double mutant strain was analyzed under mixotrophic medium containing ammonium nitrate Chlamydomonas
total level of free amino acids per cell was measured in all different strains Chlamydomonas
higher NH4+ concentrations in transgenic plants result in enhanced NH4+ assimilation Oryza sativa
nitrogen source affected enzyme activity of nitrogen assimilation Arabidopsis thaliana
breeding crop species under nitric or combined N nutrition provokes negative selection pressure towards NH4+ assimilation
Rld-2, N7, and N14 accessions show small increase in glutamine synthetase activity under ammonium nutrition Arabidopsis thaliana
NaCl treatment under low N conditions increased NR activity Salicornia europaea
pgl3-1 mutant roots show no significant difference in 15N-enriched amino acids compared to wild-type roots Arabidopsis thaliana
induction of expression of OPPP genes is dependent on flux through the pathway Arabidopsis thaliana
15N enrichment of amino acids in pgl3-1 leaves occurred at about twice the rate in pgl3-1 as in Col-0 Arabidopsis thaliana
OPPP may not be limiting for N uptake under N starvation Arabidopsis thaliana
organic acids in tricarboxylic acid cycle serve as acceptors for amino groups Chlamydomonas
NADH-GOGAT gene is involved in nitrogen assimilation pathway Oryza sativa
wheat glutamine synthetase TaGS1 expression was similar to TaNPF6.2 Triticum aestivum
(GLC, AT1G65450) does not influence low-affinity nitrate transport Arabidopsis thaliana
ammonium is incorporated into organic molecules Arabidopsis thaliana
nitrate reductase requires cytosolic NADH Arabidopsis thaliana
RNAi lines induced for loss of SufBCD complex components had shown strong effects on GOGAT Arabidopsis thaliana
lower nitrate levels in young leaves compared with old leaves indicates higher nitrate assimilation by NR Arabidopsis thaliana
plastid GOGAT (plastid), (ATHNIR, NIR, NIR1, AT2G15620) (plastid), and nitrate reductase (NR, cytosol) seemed to be less affected by Fe depletion Arabidopsis thaliana
nitrogen (N) metabolism is essential for growth and development
nitrate reductase (NR) is major mechanism of NO synthesis
nitrate reductase and glutamine synthetase activity is reduced by salinity in wheat Triticum aestivum
changes in OsAMT1;1 transgenic lines lead to increased expression of a number of nitrogen assimilatory genes Oryza sativa
plants grown in 30 μM NH4+ exhibit lowest nitrogen assimilation gene expression levels Oryza sativa
transgenic plants show significantly higher expression of nitrogen assimilation pathway genes Oryza sativa
Glutamate dehydrogenase (GDH) deaminating activity was higher in nitrate (NO3–)-fed plants Arabidopsis thaliana
malate accumulation during the light period may be related to accumulation of malate as a counter-anion of nitrate
MdTGA1 overexpression enhances ammonium assimilation process Malus domestica
ammonium transporter AMT1.1 is responsible for cellular ammonium acquisition Arabidopsis thaliana
external nitrate regulates gene expression of glycolysis
nitrogen-replete pgl3-1 mutant plants fed with sucrose via roots did not increase expression of nitrogen assimilation genes in roots Arabidopsis thaliana
supply of sugars from shoot activates expression of nitrate reduction genes
ammonia (NH3) is reassimilated by concerted action of glutamine synthetase and glutamate synthase
NO2− reduction at low light intensities (<50 μmol quanta m−2 s−1) saturates at rate of about 1 μmol O2 m−2 s−1 Nicotiana tabacum
protein phosphorylation regulates enzymes of nitrate assimilation
expression of nitrate assimilation genes in roots is hypothesized to be positively regulated by signal emanating from OPPP activity in plastid Arabidopsis thaliana
switch in the use of N-source from ammonia to nitrate results in observed decrease in assimilation quotient (AQ) Oryza sativa
external nitrate regulates gene expression of nitrate transporters
nitrate (NO3-) uptake and assimilation involves nitrite reductase (ATHNIR, NIR, NIR1, AT2G15620)
nitrate (NO3-) is involved in nitrate uptake Chlamydomonas
cytosolic nitrate reductase catalyzes reduction of nitrate (NO3–)
GS1.2 gene is involved in nitrogen assimilation pathway Oryza sativa
glutamine synthetase 1 isoform is accumulated upon ammonium nutrition Arabidopsis thaliana
genes encoding enzymes and transporters associated with N assimilation functions include nitrate transport and nitrate reduction Arabidopsis thaliana
external nitrate regulates gene expression of pentose phosphate pathway
nitrate coordinates production of organic acids required for inorganic nitrogen assimilation
fixed carbon (C) provides carbon (C) skeletons
nitrate limitation causes decrease in nitrogen (N) content in elevated CO2
nitrate and ammonium can be assimilated in leaves
nitrate induces expression of nitrate reductase
increased (GNR1, NIA1, NR1, AT1G77760) levels are likely responsible for increased NR activity and NO production Triticum aestivum; Hordeum vulgare
Gln levels in gin2-1 compared with Landsberg erecta are not altered in response to (GLC, AT1G65450) Arabidopsis thaliana
(ATRAPTOR1B, RAPTOR1, RAPTOR1B, AT3G08850) leaf tissue shows increased activities of nitrate reductase and nitrite reductase Arabidopsis thaliana
glutamate is a major player in nitrogen assimilation
Fd-dependent GOGAT catalyzes incorporation of ammonium into glutamate Arabidopsis thaliana
AtFdC1 transports photosynthetic electrons from PSI to (ATHNIR, NIR, NIR1, AT2G15620) and (SIR, AT5G04590) in nitrogen and sulfur assimilation Arabidopsis thaliana
nitrate (NO3−) is then distributed within the plant, or is conjugated with carbon molecules to generate amino acids through assimilation
plastidial oxidative pentose phosphate pathway (OPPP) role in nitrogen assimilation Arabidopsis thaliana
pgl3-1 mutant had lower content of amino acids in leaves Arabidopsis thaliana
split-plate assays had only sources of nitrogen as nitrate and ammonium Pisum sativum
TaLBD41-NAC2 interaction competitively binds to TaNADH-GOGAT Triticum aestivum
(AT.EIF4E1, CUM1, EIF4E, eIF4E1, AT4G18040) mutants show increased amino acid content Arabidopsis thaliana
TaLBD41-RNAi plants had significantly higher mRNA levels of TaNADH-GOGAT Triticum aestivum
transcriptome and gene expression analyses revealed up-regulation of NITRATE REDUCTASE 1 (GNR1, NIA1, NR1, AT1G77760) in (AtNPF2.12, NPF2.12, NRT1.6, AT1G27080) wheat mutant Triticum aestivum
TaLBD41-2A-OE lines displayed opposite phenotypes to RNAi lines in NR and GOGAT enzyme activities Triticum aestivum
plastids are involved in nitrogen assimilation
TaLBD41-2A overexpression significantly influenced TaNADH-GOGAT expression under both nitrate-deficient and nitrate-sufficient conditions Triticum aestivum
glutamine synthesis occurs via plastidic glutamine synthetase/glutamate synthase cycle and mitochondrial glutamine synthetase Hordeum vulgare
TaLBD41-RNAi lines exhibited higher NR enzyme activity in roots Triticum aestivum
sunlight positively regulates expression of (ATNR2, B29, CHL3, NIA2, NIA2-1, NR, NR2, AT1G37130)
cost of nitrate assimilation is influenced by environmental factors Glycine max
multiple NO3− assimilation pathway genes, importantly NIA are induced within minutes to serve as NO3− enhancer
nitrate must be converted back to ammonium by the plant at a cost of 3 NADPH.H equivalents per nitrate Glycine max
malic acid is used as carbon skeleton in the glutamine synthetase/glutamate synthase pathway
IDH transgenic tomato plants show increased level of nitrate content in leaves Solanum lycopersicum
inorganic nitrogen assimilation in leaves occurs at higher rates in light than in dark light and dark conditions
GOGAT (glutamate synthase) requires reduced ferredoxin or NADH
organic acids can serve as carbon storage alternative to carbohydrates Arabidopsis thaliana
nitrate reductase mutants indicated that nitrate directly regulates expression of genes involved in nitrate uptake and assimilation
MdTGA1 overexpression enhances nitrate (NO3-) nitration process Malus domestica
later phosphorylation responses affect nitrogen transport and metabolism
greater root:shoot ratio of pgl3-1 might confer greater relative uptake of 15N Arabidopsis thaliana
assimilation of ammonium into amino acids requires ATP Pisum sativum
ammonia is assimilated into glutamine
nitrite is reduced to ammonium Triticum aestivum
(FTRB, INAP1, AT2G04700) has narrow range of permissible nitrate concentrations Arabidopsis thaliana
deficiency in the export of reducing power via (NADP-MDH, AT5G58330) would result in inefficient nitrate reduction Arabidopsis thaliana
(AtNIT2, NIT2, AT3G44300) mutant strains display unchanged growth rate in ammonium nitrate medium Chlamydomonas
wild-type strain shows low level of intracellular nitrate under ammonium nitrate nutrition Chlamydomonas
asparagine transferase is involved in metabolism of nitrogen assimilation processes Brassica napus L.
GS1.2 and NADH-GOGAT could be key players in assimilation of NH4+ ions in roots Oryza sativa
barley (ATGSL1, GLN2, GS2, AT5G35630) gene null mutations cause seedling-lethal phenotype Hordeum vulgare
young developing roots and leaves behave as sink organs for assimilation of inorganic nitrogen and synthesis of amino acids
15 N flux studies revealed that nitrogen for phenolamide synthesis originates from recently assimilated nitrogen Nicotiana attenuata
nitrogen-deprived pgl3-1 plants fed with nitrate exhibited normal induction of nitrate assimilation genes in roots Arabidopsis thaliana
cytosolic OPPP cannot substitute for loss of plastidial OPPP pathway Arabidopsis thaliana
nitrate is converted to nitrite
nitrate reductase OsNR2 is key component underlying NUE variation
interaction mapping uncovers architecture of nitrogen assimilation
MdTGA1 overexpression remarkably increases amino acid content Malus domestica
NADH-GOGAT predominates in non-photosynthetic sink tissues (roots)
amino acids are derived from nitrate (NO3−) reduction Nicotiana attenuata
amino acids in roots and shoots of nitrogen-deprived pgl3-1 plants fed with nitrate were labeled with 15N at least as rapidly as in wild type Arabidopsis thaliana
sugar-dependent expression of nitrogen assimilation genes requires oxidative pentose phosphate pathway (OPPP) activity Arabidopsis thaliana
pyruvate rescues Glc-responsive expression of AMT1.3 Arabidopsis thaliana
cytosolic nitrate reductase did not change in abundance in response to Fe depletion Arabidopsis thaliana
Asp levels increase in response to increased nitrate Arabidopsis thaliana
rescue of Glc-mediated increases in (ACH1, ATNRT2.1, ATNRT2:1, LIN1, NRT2, NRT2.1, NRT2:1, NRT2;1AT, AT1G08090) expression in gin2-1 by pyruvate and shikimate does not involve reduced levels of Gln and other amino donors Arabidopsis thaliana
glutamine synthase (GS1) catalyzes incorporation of ammonium into glutamine Arabidopsis thaliana
alanine (Ala) is one of the four most abundant amino acids in Cucurbita pepo nectaries and nectar Cucurbita pepo
nitrate (NO3−) is primary nitrogen source for plants
nitrate-enhanced GS activity is attenuated in nrt1.1b and (NLP3, AT4G38340) mutants Oryza sativa
NH4+ influx is assimilated by plant Medicago truncatula
NH4+ is exported from bacteroids into cytosol of the infected cell
reduced expression of (ACH1, ATNRT2.1, ATNRT2:1, LIN1, NRT2, NRT2.1, NRT2:1, NRT2;1AT, AT1G08090) is consistent with reduced high-affinity nitrate transport in gin2-1 Arabidopsis thaliana
NR activity was significantly higher in younger leaves than in older leaves Arabidopsis thaliana
early-reverse categories are grouped as transport, amino acid metabolism, and tetrapyrrole synthesis Chlamydomonas reinhardtii
inorganic nitrogen (N) assimilation requires significant amounts of NAD(P)H
transcripts for citrate synthase are strongly induced by nitrate
glutamate dehydrogenase (GDH) catalyzed addition of ammonium to α-ketoglutarate produces glutamate (Glu)
potassium nitrate (KNO3) feeding does not change nectary alanine levels alanine (Ala) in nectaries Cucurbita pepo
Lotus plants constitutively expressing GS show increased GS activity in shoots Lotus
gin2-1 seedlings in high-nitrate conditions have very low high-affinity nitrate uptake levels Arabidopsis thaliana
(ACH1, ATNRT2.1, ATNRT2:1, LIN1, NRT2, NRT2.1, NRT2:1, NRT2;1AT, AT1G08090) protein levels in gin2-1 seedlings grown in high-nitrate medium are significantly reduced compared with Landsberg erecta Arabidopsis thaliana
reduced (ACH1, ATNRT2.1, ATNRT2:1, LIN1, NRT2, NRT2.1, NRT2:1, NRT2;1AT, AT1G08090) expression in gin2-1 is consistent with reduced (ACH1, ATNRT2.1, ATNRT2:1, LIN1, NRT2, NRT2.1, NRT2:1, NRT2;1AT, AT1G08090) protein levels in gin2-1 in high-nitrate medium Arabidopsis thaliana
NH4+ levels are twice as high in gin2-1 in plants grown on high nitrate levels Arabidopsis thaliana
higher NR activity in mutant younger leaves followed by lower nitrate Arabidopsis thaliana
OsSAPK9 knockout mutant results in loss of ABA-mediated GS/GOGAT activity enhancement under high-NH4+ stress Oryza sativa
inorganic nitrogen is primarily assimilated into asparagine (Asn)
Asp levels in gin2-1 are high in low nitrate Arabidopsis thaliana
tricarboxylic acid (TCA) cycle provides essential precursors for general nitrogen metabolism Arabidopsis thaliana
low-affinity nitrate uptake shows no significant differences in gin2-1 or Landsberg erecta in seedlings grown on high or low nitrate levels Arabidopsis thaliana
GS/GOGAT (glutamine synthetase/glutamate synthase) assimilates NH4+
sapk9 mutant does not show induction of OsNADH-GOGAT1 transcription Oryza sativa
assimilation of inorganic nitrogen (N) into amino acids and proteins begins with nitrate (NO3−) uptake from soil by root-localized NO3− transporters
NITRATE TRANSPORTER 1.5 (AtNPF7.3, NPF7.3, NRT1.5, AT1G32450) transcript levels decrease over 10-fold from secretion to post-secretion post-secretion stage Cucurbita pepo
concomitant activation of (AMT1, ASA1, JDL1, TRP5, WEI2, AT5G05730) /2 and GOGAT1 genes increases protein grain content Oryza sativa
gamma-aminobutyric acid (GABA) is detected in Cucurbita pepo nectaries and nectar Cucurbita pepo
expression of N assimilation genes is tightly coordinated nitrogen assimilation pathway Arabidopsis thaliana
ammonia is used to produce amino acids
nitrogen-replete wild type plants fed with sucrose via roots increased expression of nitrogen assimilation genes in roots Arabidopsis thaliana
pOsGPX1::astol1 transgenic lines have higher grain nitrogen (N) concentration Oryza sativa
(FTRB, INAP1, AT2G04700) did not respond to nitrates <5 mM Arabidopsis thaliana
nitrogen assimilation shared by infected and un-infected cells may prevent infected cells from being overworked Medicago truncatula; Lotus japonicus
glutamine is most abundant product of ammonium assimilation in roots
nitrate is reduced to nitrite Triticum aestivum
Gln (glutamine) is first amino acid product of nitrogen assimilation pathway
(NLP3, AT4G38340) activates transcription of OsGS2 Oryza sativa
OsGS1.1, OsGS2, and NADH-GOGAT1 are ammonium assimilation genes Oryza sativa
(ATHNIR, NIR, NIR1, AT2G15620) r plants fed with NO3– show substantial and significant accumulation of NO2– (>5-fold compared to WT) Nicotiana tabacum
increased NO3− assimilation in the light lowers assimilation quotient (AQ)
ammonium (NH4+) is inorganic nitrogen source
NR-dependent N assimilation pathway is circumvented when plants are fed with NH4+ Nicotiana tabacum
OsGS1.2 is expressed abundantly in surface cell layers of roots Oryza sativa
pyruvate rescues Glc-responsive expression of (ATNR2, B29, CHL3, NIA2, NIA2-1, NR, NR2, AT1G37130) Arabidopsis thaliana
GLUTAMINE SYNTHASE2 (ATGSL1, GLN2, GS2, AT5G35630) is not expressed in response to glucose Arabidopsis thaliana
cytosolic glutamine synthetase (GS1-1) is 2.5 times higher in pgl3-1 than in wild type in response to sucrose treatment Arabidopsis thaliana
nitrate reduction involves operation of nitrite reductase
ammonium is assimilated via glutamine synthetase (GS)-glutamine-2-oxoglutarate aminotransferase (GOGAT) pathway
nitrate-mediated induction of (ACH1, ATNRT2.1, ATNRT2:1, LIN1, NRT2, NRT2.1, NRT2:1, NRT2;1AT, AT1G08090) is similar in Landsberg erecta and gin2-1 seedlings on 0% (GLC, AT1G65450) Arabidopsis thaliana
applied nitrogen (N) can be converted into grain yield
(FD-GOGAT, GLS1, GLU1, GLUS, AT5G04140) plays a major role in primary N assimilation in leaves Arabidopsis thaliana
alanine (Ala) is the most abundant nectar amino acid near the beginning of nectar secretion beginning of nectar secretion stage Cucurbita pepo
glutamate (Glu) in nectar is not significantly different between any time points measured nectar secretion stages Cucurbita pepo
increased nodule CO2 fixation supplies organic acids and carbon skeletons for nitrogen assimilation
ectopic expression of bacterial glutamate dehydrogenase results in ammonium incorporation into glutamate Nicotiana tabacum; Zea mays
(ACH1, ATNRT2.1, ATNRT2:1, LIN1, NRT2, NRT2.1, NRT2:1, NRT2;1AT, AT1G08090) expression is induced to similar levels in response to nitrate Arabidopsis thaliana
reduced (ACH1, ATNRT2.1, ATNRT2:1, LIN1, NRT2, NRT2.1, NRT2:1, NRT2;1AT, AT1G08090) protein levels in gin2-1 is consistent with reduced high-affinity transport in gin2-1 in high-nitrate-grown seedlings Arabidopsis thaliana
need for de novo generation of 2-oxoglutarate (2OG) will be much lower than net rate of inorganic N assimilation
cytosolic glutamate dehydrogenase is induced under nitrogen-limiting conditions Solanum lycopersicum
post-translational regulation of nitrate reductase is capable of regulating nitrate assimilation in mutants in which the NIA gene is constitutively expressed
K16331 line shows up-regulation of (FD-GOGAT, GLS1, GLU1, GLUS, AT5G04140) transcript Arabidopsis thaliana
glutamate labeling shows slow changes in glutamate Arabidopsis thaliana
mitochondrial TCA cycle enzymes contribute to regulation of nitrogen assimilation in leaves
ferredoxin (Fd) is involved in nitrogen assimilation
transcript for nitrite reductase (ATHNIR, NIR, NIR1, AT2G15620) was not affected by Fe depletion Arabidopsis thaliana
diurnal changes in starch are synchronized to nitrate assimilation
down-regulation of mitochondrial isocitrate dehydrogenase led to increased nitrate contents up to 168% of wild-type levels Solanum lycopersicum
nitrite reductase (ATHNIR, NIR, NIR1, AT2G15620) requires ferredoxin (Fd)
ammonium (NH4+) is incorporated into amino acids
nitrate reductase (NR) is the only expressed isoform in Cucurbita pepo nectaries Cucurbita pepo
glutamine synthetase (GS1.1) was more highly expressed in bundle sheath and veinal cells compared with mesophyll cells Oryza sativa
(ATNR2, B29, CHL3, NIA2, NIA2-1, NR, NR2, AT1G37130) gene was most abundant in bundle sheath cells Oryza sativa
photosynthesis is a major function during N assimilation in the illuminated leaves of C3 plants
transcripts for isocitrate dehydrogenase (ICDH, AT1G54340) are strongly induced by nitrate
GOGAT (glutamate synthase) requires C skeletons and reductant in the form of 2-oxoglutarate (2OG)
inactivation of nitrate reductase minimizes accumulation of nitrite
C committed to maintain N assimilation generates C skeletons and energy required for the GS/GOGAT system
(FTRB, INAP1, AT2G04700) mutant would also be expected to show deficiencies in (FD-GOGAT, GLS1, GLU1, GLUS, AT5G04140) activation Arabidopsis thaliana
Ferredoxin (Fd)-glutamine oxoglutarate aminotransferase (GOGAT) 2 (GLU2, AT2G41220) is key enzyme in nitrogen assimilation
alanine aminotransferase 2 (ALAAT2, AT1G72330) is one of the highest expressed isoforms in Cucurbita pepo nectaries Cucurbita pepo
incomplete re-assimilation of photorespired ammonia would result in lower net rate of inorganic N assimilation in leaf
glutamate and glutamine are precursors for biosynthesis of all nitrogenous compounds in plants
cytosolic glutamate dehydrogenase induced under nitrogen-limiting conditions provides glutamate and maintain nitrogen metabolism Solanum lycopersicum
nitrate and ammonium are assimilated in roots or shoots
activity of sections of the tricarboxylic acid (TCA) cycle in the light is likely to be highly important for supply of reductant required for nitrogen assimilation
mitochondrial citrate synthase deficiency resulted in increased nitrate assimilation effects Solanum lycopersicum
amino acids repress expression of nitrate reductase
Fd-GOGAT1 mutant produces lethal phenotype Arabidopsis thaliana
transcripts for phosphoenolpyruvate carboxylase (PEPC) are strongly induced by nitrate
amino acids are synthesized in leaves
activation of NR activity is expected to result in increased NH4+
isoform of glutamine synthetase (GS) was found to be dual targeted to chloroplast and mitochondria in Arabidopsis leaves Arabidopsis thaliana
mitochondrial isocitrate dehydrogenase demonstrates a clear role in nitrate assimilation Solanum lycopersicum
increase in carbon dioxide (CO2) leads to competition for reductant, as NADPH, in chloroplast stroma
K19624 line shows up-regulation of (FD-GOGAT, GLS1, GLU1, GLUS, AT5G04140) transcript Arabidopsis thaliana
nitrate reductase was assayed as described in Gibon et al. (2004) assay protocol
maximum activities of enzymes encoded by phosphoenolpyruvate carboxylase (PEPC), citrate synthase, and isocitrate dehydrogenase (ICDH, AT1G54340) transcripts respond to genetic manipulation of nitrate assimilation
glutamate dehydrogenase (GDH) catalyses formation of glutamate through reductive amination using NAD(P)H
DELLA proteins (DELLAs) reduce efficiencies of N assimilation
inorganic nitrogen is converted into amino acids (AAs)
un-infected cells in nitrogen fixation zone undertake asparagine synthesis Medicago truncatula
two main AS coding genes were also enriched in un-infected cells Lotus japonicus
ammonium is subsequently incorporated into glutamine Arabidopsis thaliana
fumarate and malate can serve as counteranions for nitrate Arabidopsis thaliana
ammonium is converted to asparagine (Asn)
knockdown of (ATGPT1, GPT1, AT5G54800) synthesis resulted in embryos with reduced accumulation of transcripts for OPPP genes Arabidopsis thaliana
regulatory network regulates uptake and assimilation of inorganic N
decrease in photorespiration leads to reduction in NADH levels available to power nitrate reduction
glutamine synthetase (GS) / glutamine-2-oxoglutarate aminotransferase cycle converts glutamine (Gln)
low-affinity nitrate uptake is highly elevated in Landsberg erecta in high-nitrate conditions Arabidopsis thaliana
lower nitrate accumulation in (ATXDH1, XDH1, AT4G34890) younger leaves indicates higher rate of nitrate assimilation in mutant younger leaves Arabidopsis thaliana
nitrate is assimilated to ammonium Arabidopsis thaliana