The roles of mitochondrial reactive oxygen species in cellular signaling and stress response in plants

Shaobai Huang, Olivier Van Aken, M. Schwarzländer, Katharina Belt, Harvey Millar

Research output: Contribution to journalArticle

118 Citations (Scopus)


© 2016 American Society of Plant Biologists. All rights reserved.Mitochondria produce ATP via respiratory oxidation of organic acids and transfer of electrons to O2 via the mitochondrial electron transport chain. This process produces reactive oxygen species (ROS) at various rates that can impact respiratory and cellular function, affecting a variety of signaling processes in the cell. Roles in redox signaling, retrograde signaling, plant hormone action, programmed cell death, and defense against pathogens have been attributed to ROS generated in plant mitochondria (mtROS). The shortcomings of the black box-idea of mtROS are discussed in the context of mechanistic considerations and the measurement of mtROS. The overall aim of this update is to better define our current understanding of mtROS and appraise their potential influence on cellular function in plants. Furthermore, directions for future research are provided, along with suggestions to increase reliability of mtROS measurements.
Original languageEnglish
Pages (from-to)1551-1559
Number of pages9
JournalPlant Physiology
Issue number3
Early online date28 Mar 2016
Publication statusPublished - Jul 2016


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