Gene Details:

• MSU gene ID: LOC_Os02g40710
• RAPdb gene ID: Os02g0620500
• Gene Symbol: OsAMT1 3 OsAMT1.3
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Northern blot analysis showed a distinct expression pattern for the three genes; more constitutive expression in shoots and roots for OsAMT1;1, root-specific and ammonium-inducible expression for OsAMT1;2, and root-specific and nitrogen-derepressible expression for OsAMT1;3.
• The three members of the rice OsAMT1 gene family of ammonium transporters show distinct expression patterns; constitutive and ammonium-promoted expression in shoots and roots for OsAMT1;1; root-specific and ammonium-inducible expression for OsAMT1;2; root-specific and nitrogen-repressible expression for OsAMT1;3 [Sonoda et al.
• Ammonium application to roots following a period of nitrogen starvation induced accumulation of OsAMT1;1 and OsAMT1;2 mRNA, but a decrease of OsAMT1;3 mRNA levels.
• The expression patterns of the three genes showed good correlation (positive in OsAMT1;1 and OsAMT1;2, negative in OsAMT1;3) with the root tissue contents of glutamine but not of ammonium.
• In this report, we demonstrate that the rice root expressed OsAMT1;3 (Oryza sativa ammonium transporter 1;3) functions as a typical high-affinity NH4(+) transporter and is weakly permeable to MeA(+) using growth assays in NH4(+) uptake defective yeast cells and electrophysiological measurements in Xenopus oocytes.
• Spatial expression analysis showed that the upregulated expression of OsAMT1;1 and OsAMT1;2 and downregulated expression of OsAMT1;3 by ammonium were higher in the root mature region than in the root tips.

Function-related keywords:

• root ,  shoot ,  nitrogen ,  transporter ,  growth

Literature:

• Differential expression of three members of the AMT1 gene family encoding putative high-affinity NH4+ transporters in roots of Oryza sativa subspecies indica .  DOI:  10.1046/j.1365-3040.2003.01023.x ;  PMID:  12803618
• Feedback regulation of the ammonium transporter gene family AMT1 by glutamine in rice .  DOI:  10.1093/pcp/pcg169 ;  PMID:  14701935
• Distinct expression and function of three ammonium transporter genes (OsAMT1;1-1;3) in rice .  DOI:  10.1093/pcp/pcg083 ;  PMID:  12881500
• Identification of structural elements involved in fine-tuning of the transport activity of the rice ammonium transporter OsAMT1;3 .  DOI:  10.1016/j.plaphy.2016.07.003 ;  PMID:  27423220
• New Insights into the Transcriptional Regulation of Genes Involved in the Nitrogen Use Efficiency under Potassium Chlorate in Rice (Oryza sativa L.) .  DOI:  10.3390/ijms22042192 ;  PMID:  33671842
• Three polarly localized ammonium transporter 1 members are cooperatively responsible for ammonium uptake in rice under low ammonium condition .  DOI:  10.1111/nph.17679 ;  PMID:  34392543
• Mutation of phytochrome B promotes resistance to sheath blight and saline-alkaline stress via increasing ammonium uptake in rice .  DOI:  10.1111/tpj.16046 ;  PMID:  36440495

Related News:

Gene Resources:

• NCBI ID: AF289479
• UniProt accessions:

Sequences: