A natural variation in OsDSK2a modulates plant growth and salt tolerance through phosphorylation by SnRK1A in rice.

ABSTRACT: Plants grow rapidly for maximal production under optimal conditions; however, they adopt a slower growth strategy to maintain survival when facing environmental stresses. As salt stress restricts crop architecture and grain yield, identifying genetic variations associated with growth and yield responses to salinity is critical for breeding optimal crop varieties. OsDSK2a is a pivotal modulator of plant growth and salt tolerance via the modulation of gibberellic acid (GA) metabolism; however, its regulation remains unclear. Here, we showed that OsDSK2a can be phosphorylated at the second amino acid (S2) to maintain its stability. The gene-edited mutant osdsk2a^S2G showed decreased plant height and enhanced salt tolerance. SnRK1A modulated OsDSK2a-S2 phosphorylation and played a su

SUBMITTER: Wang J 

PROVIDER: S-EPMC11182596 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature