Annexin, a multi-gene family in plants, is essential for plant growth and stress responses. Recent studies demonstrated a positive effect of annexin in abiotic stress responses. Interestingly, we found OsANN10, a putative annexin gene in rice, negatively regulated plant responses to osmotic stress. Knocking down OsANN10 significantly decreased the content of H2O2 by increasing Peroxidase (POD) and Catalase (CAT) activities, further reducing oxidative damage in rice leaves, suggesting a negative regulation of OsANN10 in protecting cell membrane against oxidative damage via scavenging ROS under osmotic stress.

中文翻译：

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钙依赖性脂质结合蛋白 OsANN10 是水稻渗透胁迫耐受性的负调节因子

膜联蛋白是植物中的一个多基因家族，对植物生长和应激反应至关重要。最近的研究表明膜联蛋白在非生物胁迫反应中具有积极作用。有趣的是，我们发现 OsANN10 是水稻中一个假定的膜联蛋白基因，它负向调节植物对渗透胁迫的反应。敲低 OsANN10 通过增加过氧化物酶 (POD) 和过氧化氢酶 (CAT) 活性显着降低 H2O2 的含量，进一步减少水稻叶片的氧化损伤，表明 OsANN10 通过在渗透胁迫下清除 ROS 来保护细胞膜免受氧化损伤的负调节。