At the Intersection： Merging Ca2＋ and ROS Signaling Pathways in Pollen  

作　　者：Michael M. Wudick José A. Feijó 

机构地区：[1]Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742–5815, USA [2]Instituto Gulbenkian de Ciencia, 2780-156 Oeiras, Portugal

出　　处：《Molecular Plant》2014年第11期1595-1597,共3页分子植物（英文版）

摘　　要：THE MIXED BLESSING OF ROS： DON＇T YOU KNOW THAT I＇M TOXIC？Due to plants＇ aerobic metabolism, reactive oxygen species （ROS） continuously accrue in different tissues and organs as a by-product of many metabolic reactions. Despite their toxic activity, plants also rely on ROS as a major form of second messenger to integrate, induce, and/or propagate biotic and abiotic signals and signaling cascades. Being small, short-lived, and rapidly diffusible makes ROS ideal messenger molecules for local biochemi- cal reactions. Hence, a delicate fine-tuning of localized ROS production and signaling events is crucial for many physi- ologic processes.THE MIXED BLESSING OF ROS： DON＇T YOU KNOW THAT I＇M TOXIC？Due to plants＇ aerobic metabolism, reactive oxygen species （ROS） continuously accrue in different tissues and organs as a by-product of many metabolic reactions. Despite their toxic activity, plants also rely on ROS as a major form of second messenger to integrate, induce, and/or propagate biotic and abiotic signals and signaling cascades. Being small, short-lived, and rapidly diffusible makes ROS ideal messenger molecules for local biochemi- cal reactions. Hence, a delicate fine-tuning of localized ROS production and signaling events is crucial for many physi- ologic processes.

分 类 号：Q257[生物学—细胞生物学] Q255