Physiological traits, gene expression responses, and proteomics of rice varieties varying in heat stress tolerance at the flowering stage.

ABSTRACT:

Introduction/background

Global warming greatly limits the productivity of rice. Rice plants are highly sensitive to heat stress at the flowering stage. The selection of heat-tolerant varieties is considered the most effective approach for ensuring global food security in the coming decades.

Methods

Based on previous screening and QTL localization results, we selected tolerant varieties (Huang Huazhan, HZ) and susceptible varieties (Yang Dao6, YD) of rice and studied their physiological characteristics, gene expression responses, and proteomic differences of their anthers under heat stress. The differentially expressed proteins (DEPs) were validated by real-time PCR.

Results

The activities of the antioxidant enzymes CAT, SOD, POD, and APX were 8.36%, 9.56%, 20.61%, and

SUBMITTER: Guo H 

PROVIDER: S-EPMC11656201 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature