Hydrogen sulfide promotes lateral root formation in peach through persulfidation of SnRK1α kinase.

ABSTRACT: Root development is crucial for the growth and yield of horticultural crops. Hydrogen sulfide (H₂S), an important gasotransmitter, has been shown to regulate lateral root (LR) formation in plants, including peach (Prunus persica). However, its specific regulatory mechanism remains largely unclear. Here, we show that the energy/metabolic sensor SUCROSE NON-FERMENTING RELATED KINASE 1 (SnRK1) mediates the control of peach LR growth by H₂S. PpSnRK1 activity in peach roots is enhanced with H₂S to promote LR generation. Cys419, Cys430 and Cys505 residues in the catalytic α-subunit of PpSnRK1 are modified by H₂S persulfidation. Reduced persulfidation inhibits the H₂S-induced PpSnRK1 activity. Mutating Cys419 and Cys430 of PpSnRK1α severely i

SUBMITTER: Wu X 

PROVIDER: S-EPMC12483961 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature