Metal-Induced Oxidative Stress and Plant Mitochondria

International Journal of Molecular Sciences

Els Keunen¹  Tony Remans¹  Sacha Bohler¹  Jaco Vangronsveld¹ 

[1] Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, B-3590 Diepenbeek, Belgium;

关键词: toxic metals;    oxidative stress;    reactive oxygen species (ROS);    plant mitochondria;    oxidative damage;    signaling;   

DOI  :  10.3390/ijms12106894

来源: mdpi

【 摘 要 】

A general status of oxidative stress in plants caused by exposure to elevated metal concentrations in the environment coincides with a constraint on mitochondrial electron transport, which enhances ROS accumulation at the mitochondrial level. As mitochondria are suggested to be involved in redox signaling under environmental stress conditions, mitochondrial ROS can initiate a signaling cascade mediating the overall stress response, i.e., damage versus adaptation. This review highlights our current understanding of metal-induced responses in plants, with focus on the production and detoxification of mitochondrial ROS. In addition, the potential involvement of retrograde signaling in these processes will be discussed.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.