植物细胞的逆境胁迫应答中，初期信号感知与叶绿体相关的胞内应答起了重要作用。经过长期在国内的研究，申请人取得了一些创新性成果。初期信号感知方面, 首次发现了水稻双重识别受体OsLYP4/6，通过识别细菌肽聚糖与真菌几丁质引发天然免疫应答。胞内应答方面，阐释了氧还系统在叶绿体逆境应答中的作用，包括光系统复合物的稳定修复以及叶绿体内氧还状态调控：发现叶绿体新蛋白HHL1，通过与氧还调控蛋白LQY1协同，维持光系统稳定以快速响应高光胁迫，由此提示了陆生植物特有的光系统修复模式；发现一个氧还相关的长期逆境应答新机制，通过铁氧还蛋白Fd2的下调，稳定质体醌库氧还状态以激活光适应途径。近5年，以通讯作者在Plant Cell、Plant J、Plant Physiol等期刊发表SCI论文16篇，被广泛关注，包括入选ESI热点论文、获得F1000推荐、获选为Plant Physiol期刊封面等。

Early signal perception and chloroplast-related responses play important roles in stress responses of plant cell. After a long time local investigation, the applicant has made significant progresses with his research group in work of recognition mechanism in plant innate immunity and chloroplast-related responses to stress. In the area of early signal perception, the applicant identified the receptor OsLYP4/6 with dual function in rice, which can trigger innate immunity by perceiving fungal chitin and bacterial PGN. In the area of intracellular responses, the applicant illuminated the roles of redox system in the response to stress in chloroplast, including the stability and repair of photosystem and the regulation of redox status of chloroplast. The applicant found that the novel chloroplast protein HHL1, cooperates with LQY1, functions in the stability maintain of photosystem and quickly responds to high light stress, by which indicates a unique mode of photosystem repair in the land plants. He also found a novel mechanism of redox-related response to long-time adversity, in which the plastoquinone pool returned to a more balanced redox state and activated the pathway of light acclimation via downregulation of Fd2 expression. In recent five years, the applicant has published 16 SCI papers as corresponding author in peer-reviewed international journal, including Plant Cell, Plant Journal and Plant Physiology. These papers have been highlighted by other scientists, including selected as ESI hot papers, recommended by F1000 and selected as Plant Physiology cover story.