| Categories genes  | Tags plant stature  disease development  dwarf  leaf  root  seedling  panicle  anther  pollen  bacterial blight  defense 
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  • Key message
    • Gibberellin 20-oxidase gene OsGA20ox3 regulates plant stature and disease development in rice
    • Transgenic plants overexpressing OsGA20ox3 showed phenotypes similar to those of the 17S-14 mutant, and the RNA interference (RNAi) lines that had decreased OsGA20ox3 expression exhibited a semidwarf phenotype.
    • Expression of OsGA20ox3 was detected in the leaves and roots of young seedlings, immature panicles, anthers, and pollens, based on beta-glucuronidase (GUS) activity staining in transgenic plants expressing the OsGA20ox3 promoter fused to the GUS gene.
    • The OsGA20ox3 RNAi lines showed enhanced resistance against rice pathogens Magnaporthe oryzae (causing rice blast) and Xanthomonas oryzae pv. oryzae (causing bacterial blight) and increased expression of defense-related genes.
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