Impact of High-Temperature Stress on Maize Seed Setting: Cellular and Molecular Insights of Thermotolerance.

ABSTRACT: Global warming poses a significant threat to crop production and food security, with maize (Zay mays L.) particularly vulnerable to high-temperature stress (HTS). This review explores the detrimental impacts of elevated temperatures on maize development across various growth stages, analyzed within the source-sink framework, with a particular focus on seed setting and yield reduction. It provides a broad analysis of maize cellular and molecular responses to HTS, highlighting the key roles of plant hormone abscisic acid (ABA) signaling, calcium signaling, chloroplast, and the DNA damage repair (DDR) system in maize. HTS disrupts ABA signaling pathways, impairing stomatal regulation and reducing water-use efficiency, while calcium signaling orchestrates stress responses by activating

SUBMITTER: Fan Z 

PROVIDER: S-EPMC11818821 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature