中国科研团队再获突破！解锁小麦抗旱新机制，为粮食稳产提供新方向

Core Insights - The article highlights a significant research breakthrough in wheat drought resistance, revealing the role of the "TaBZR2-TaPPR13-TaAOR1/TaSIG5" regulatory module, which provides new theoretical support and breeding targets for addressing drought-related yield constraints in wheat [2][3]. Research Findings - The research utilized Genome-Wide Association Studies (GWAS) to identify the core transcription factor TaBZR2, which is significantly associated with drought resistance in wheat [3]. - TaBZR2 activates the downstream PPR protein gene TaPPR13, which acts as a positive regulator under drought stress, enhancing the plant's antioxidant defense system and regulating gene expression related to ROS scavenging and ABA signaling pathways [3]. - The collaboration between TaPPR13 and TaAOR1 facilitates stomatal closure, reducing water loss while maintaining photosynthetic capacity, thus allowing wheat to sustain yield advantages under drought stress [3]. Application and Implications - The findings fill a gap in the research on the drought resistance function of PPR proteins in wheat, paving the way for the development of new high drought-resistant and high-yield wheat varieties [3][12]. - The article emphasizes the importance of molecular breeding technologies as a core engine driving innovation in the seed industry, particularly in the context of global food security and sustainable agricultural development [5]. Conference Details - A webinar titled "Molecular Breeding and Seed Industry Innovation" is scheduled for October 24, 2025, featuring prominent experts discussing the latest breakthroughs in molecular breeding [5][6]. - The conference will cover various topics, including the molecular mechanisms of drought resistance in wheat and the application of epigenetic methods to improve crop adaptability [11][14].