Gene Details:

• MSU gene ID: LOC_Os10g28350
• RAPdb gene ID: Os10g0419400
• Gene Symbol: OsARD1
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• OsARD1 mRNA levels showed a rapid, early and transient increase upon submergence and after treatment with ethylene-releasing compounds.
• Promoter analysis suggests that immediate-early regulation of OsARD1 by ethylene may involve an EIN3-like transcription factor.
• OsARD1 transcripts accumulated in the presence of cycloheximide, an inhibitor of protein synthesis, indicating that OsARD1 is a primary ethylene response gene.
• OsARD1 is induced by low levels of ethylene.
• The immediate-early ethylene response gene OsARD1 encodes an acireductone dioxygenase involved in recycling of the ethylene precursor S-adenosylmethionine.
• In deepwater rice, submergence enhances ethylene biosynthesis, and ethylene in turn influences the methionine cycle through positive feedback regulation of the acireductone dioxygenase gene OsARD1.
• Subcellular localization shows that OsARD1 displays strong localization signal in cell nucleus, suggesting OsARD1 may interact with the transcription factors.
• Here, we report that overexpression of OsARD1 elevates the endogenous ethylene release rate, enhances the tolerance to submergence stress, and reduces the sensitivity to drought, salt, and osmotic stresses in rice.
• Transgenic plants overexpressing OsARD1 (OsARD1-OE) display fast elongation growth to escape submergence stress.
• Overexpression of OsARD1 Improves Submergence, Drought, and Salt Tolerances of Seedling Through the Enhancement of Ethylene Synthesis in Rice.
• Taken together, the results provide the understanding of the function of OsARD1 in ethylene synthesis and abiotic stress response in rice.
• In rice, OsARD1 binds Fe2+ and catalyzes the formation of 2-keto-4-methylthiobutyrate (KMTB) to produce methionine, which is an initial substrate in ethylene synthesis pathway.

Function-related keywords:

• submergence ,  transcription-factor ,  ethylene ,  growth ,  seedling ,  salt ,  tolerance ,  abiotic-stress ,  salt-tolerance ,  stress ,  biotic-stress ,  stress-response

Literature:

• OsMTN encodes a 5’-methylthioadenosine nucleosidase that is up-regulated during submergence-induced ethylene synthesis in rice (Oryza sativa L.) .  DOI:  10.1093/jxb/erm014 ;  PMID:  17339651
• The immediate-early ethylene response gene OsARD1 encodes an acireductone dioxygenase involved in recycling of the ethylene precursor S-adenosylmethionine .  DOI:  10.1111/j.1365-313X.2005.02564.x ;  PMID:  16297065
• Overexpression of OsARD1 Improves Submergence, Drought, and Salt Tolerances of Seedling Through the Enhancement of Ethylene Synthesis in Rice .  DOI:  10.3389/fpls.2019.01088 ;  PMID:  31552078

Related News:

Gene Resources:

• NCBI ID: AF050200
• UniProt accessions:

Sequences: