| Categories genes  | Tags grain  stress  grain quality  quality  oxidative stress  oxidative  endosperm  chalkiness  reactive oxygen species  stress response 
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  • Key message
    • Knockouts of FLR3 and/or FLR14 increased the number of white-core grains caused by aberrant accumulation of storage substances, resulting in poor grain quality
    • Conversely, the overexpression of FLR3 or FLR14 reduced grain chalkiness and improved grain quality
    • We also demonstrated that FLR3 and FLR14 reduced grain chalkiness by alleviating heat-induced oxidative stress in rice endosperm
    • Transcriptome and metabolome analyses showed that genes and metabolites involved in the oxidative stress response were significantly up-regulated in flr3 and flr14 grains
    • The content of reactive oxygen species was significantly increased in flr3 and flr14 mutant endosperm but decreased in overexpression lines
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