Sprouting Enhances Submergence Tolerance in Rice by Promoting Glutathione Biosynthesis and Turnover.

ABSTRACT: Submergence stress is a major constraint in direct-seeded rice production. This study investigated the effect and biochemical mechanism of sprouting, a traditional agronomic practice, on improving submergence tolerance in rice. Our findings demonstrate that sprouting is an effective seed treatment that significantly enhances the plant's ability to withstand flooding. Specifically, 48 h sprouting increased shoot height and root length by 163% and 423%, respectively, in the YLYJ48 variety under 6-day submergence. Sprouting upregulated the activity of glutathione reductase (GR) and the expression of its related genes, thereby significantly promoting the biosynthesis of glutathione (GSH). GSH content in seeds increased from 64.86 µg g^-1 FW (0 h) to 83.00 µg g^-1 FW (48 h)

SUBMITTER: Wang M 

PROVIDER: S-EPMC12729939 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature