期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 12, 期 10, 页码 6894-6918出版社
MDPI
DOI: 10.3390/ijms12106894
关键词
toxic metals; oxidative stress; reactive oxygen species (ROS); plant mitochondria; oxidative damage; signaling
资金
- Research Foundation-Flanders (FWO)
- Methusalem project [08G03VGRJ]
- [G.0807.09]
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.
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