| Categories genes  | Tags submergence  transcription factor  ethylene  growth  seedling  salt  tolerance  abiotic stress  salt tolerance  stress  biotic stress  stress response 
  • Information
  • Publication
  • Genbank accession number
  • 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

Prev     Next