【摘 要】
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THE MIXED BLESSING OF ROS:DON’T YOU KNOW THAT I’M TOXIC? rnDue to plants’ aerobic metabolism,reactive oxygen species (ROS) continuously accrue in different t
【机 构】
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Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742-58
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THE MIXED BLESSING OF ROS:DON’T YOU KNOW THAT I’M TOXIC? rnDue to plants’ aerobic metabolism,reactive oxygen species (ROS) continuously accrue in different tissues and organs as a by-product of many metabolic reactions.rnDespite 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 biochemical reactions.Hence,a delicate fine-tuning of localized ROS production and signaling events is crucial for many physiologic processes.
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