<i>OsNUDX23</i> regulates early seed germination by modulating ROS balance and starch metabolism in rice.

ABSTRACT: Seed germination is a complex biological process that encompasses the mobilization of stored nutrients, the resumption of metabolic activities, and the responses to various environmental stimuli. Reactive Oxygen Species (ROS) play a dual role during seed germination: at low concentrations, they function as signaling molecules to facilitate germination, while at high levels, they can induce oxidative damages. Therefore, maintaining ROS homeostasis through scavenging mechanisms is crucial for optimal seed germination. In this study, we investigated the role of OsNUDX23 in rice seed germination. Our findings indicated that OsNUDX23 acts as an active Nudix hydrolase towards diverse substrates including NAD, NADH, NADPH, FAD, and ADPG. Loss-of-function OsNUDX23 mutants displayed e

SUBMITTER: Dai X 

PROVIDER: S-EPMC12202601 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature