| Categories genes  | Tags submergence  seed  jasmonate  seed germination  tolerance  breeding  abscisic acid  jasmonic  jasmonic acid  glycosylation  submergence tolerance  glucosyltransferase 
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  • Key message
    • UDP-glucosyltransferase OsUGT75A promotes submergence tolerance during rice seed germination.
    • Herein, we report that natural variation of rice coleoptile length subjected to submergence is determined by the glucosyltransferase encoding gene OsUGT75A
    • OsUGT75A regulates coleoptile length via decreasing free abscisic acid (ABA) and jasmonic acid (JA) levels by promoting glycosylation of these two phytohormones under submergence
    • Moreover, we find that OsUGT75A accelerates coleoptile length through mediating the interactions between JASMONATE ZIMDOMAIN (OsJAZ) and ABSCISIC ACID-INSENSITIVE (OsABI) proteins
    • Thus, we propose that OsUGT75A is a useful target in breeding of rice varieties suitable for direct seeding cultivation
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