OsARD1

2015-01-20 | Categories genes  | Tags submergence  transcription factor  ethylene  growth  seedling  salt  tolerance  abiotic stress  salt tolerance  stress  biotic stress  stress response 

• Information
  • Symbol: OsARD1
  • MSU: LOC_Os10g28350
  • RAPdb: Os10g0419400
• Publication
  • OsMTN encodes a 5’-methylthioadenosine nucleosidase that is up-regulated during submergence-induced ethylene synthesis in rice Oryza sativa L., 2007, J Exp Bot.
  • The immediate-early ethylene response gene OsARD1 encodes an acireductone dioxygenase involved in recycling of the ethylene precursor S-adenosylmethionine, 2005, Plant J.
  • Overexpression of OsARD1 Improves Submergence, Drought, and Salt Tolerances of Seedling Through the Enhancement of Ethylene Synthesis in Rice., 2019, Front Plant Sci.
• Genbank accession number
  • AF050200
• Key message
  • 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
• Connection

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