Gene Details:

• MSU gene ID: LOC_Os04g56400
• RAPdb gene ID: Os04g0659100
• Gene Symbol: OsGS2 lambdaGS31
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Results suggest that OsGS2 and OsGS1;1 expression may contribute to drought tolerance of Khitish cultivar under WD conditions.
• Salt stress clearly up-regulated the expression of OsGDH2 and OsGDH3 in old leaves, while strongly down-regulated expression of OsGS2 and OsFd-GOGAT in old leaves.
• This might influence photorespiration process, reduce NH4+ production from photorespiration, and immediately down-regulate the expression of OsGS2 and OsFd-GOGAT in old leaves of salt stressed rice.
• OsGS1;1 and OsGS2 were differentially regulated in IR-64 (drought-sensitive) and Khitish (drought-tolerant) cultivars of rice.
• Rice plants possess one gene (OsGS2) for chloroplastic GS2 and three genes (OsGS1;1, OsGS1;2 and OsGS1;3) for cytosolic GS1.
• Our results demonstrate that the co-overexpression of OsGS1;1 and OsGS2 isoforms in transgenic rice plants enhanced its tolerance to osmotic and salinity stress at the seedling stage.
• Concurrent Overexpression of OsGS1;1 and OsGS2 Genes in Transgenic Rice (Oryza sativa L.): Impact on Tolerance to Abiotic Stresses.
• Taken together, our results demonstrate that the concurrent overexpression of OsGS1;1 and OsGS2 isoforms in rice enhanced physiological tolerance and agronomic performance under adverse abiotic stress conditions, apparently acting through multiple mechanistic routes.

Function-related keywords:

• drought-tolerance ,  salt-stress ,  drought ,  chloroplast ,  salt ,  seedling ,  salinity ,  tolerance ,  abiotic-stress ,  stress ,  Al-tolerance ,  biotic-stress ,  salinity-stress

Literature:

• Regulation of glutamine synthetase isoforms in two differentially drought-tolerant rice (Oryza sativa L.) cultivars under water deficit conditions .  DOI:  10.1007/s00299-012-1353-6 ;  PMID:  23070303
• Effects of salt stress on ion balance and nitrogen metabolism of old and young leaves in rice (Oryza sativa L.) .  DOI:  10.1186/1471-2229-12-194 ;  PMID:  23082824
• Co-suppressed glutamine synthetase2 gene modifies nitrogen metabolism and plant growth in rice .  DOI:  10.1007/s11434-010-0075-9
• Biochemical background and compartmentalized functions of cytosolic glutamine synthetase for active ammonium assimilation in rice roots .  DOI:  10.1093/pcp/pch190 ;  PMID:  15574840
• Three cDNA sequences coding for glutamine synthetase polypeptides in Oryza sativa L .  DOI:  10.1007/BF00027323 ;  PMID:  2577497
• Concurrent Overexpression of OsGS1;1 and OsGS2 Genes in Transgenic Rice (Oryza sativa L.): Impact on Tolerance to Abiotic Stresses .  DOI:  10.3389/fpls.2018.00786 ;  PMID:  29977247
• Rice plants have three homologs of glutathione synthetase genes, one of which, OsGS2, codes for hydroxymethyl-glutathione synthetase .  DOI:  10.1002/pld3.119 ;  PMID:  31245762
• The Amino Acid Transporter OsAAP4 Contributes to Rice Tillering and Grain Yield by Regulating Neutral Amino Acid Allocation through Two Splicing Variants .  DOI:  10.1186/s12284-020-00446-9 ;  PMID:  33409665

Related News:

Gene Resources:

• NCBI ID: AK099252  , X14246
• UniProt accessions:

Sequences: