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Mitochondrial complex II has a key role in mitochondrial-derived reactive oxygen species influence on plant stress gene regulation and defense

Gleason, Cynthia; Huang , Shaobai; Thatcher, Louise F; Foley, Rhonda C; Anderson, Carol R; Carroll, Adam; Millar, A. Harvey; Singh, Karam B

Description

Mitochondria are both a source of ATP and a site of reactive oxygen species (ROS) production.However, there is little information on the sites of mitochondrial ROS (mROS) production or the biological role of such mROS in plants. We provide genetic proof that mitochondrial complex II (Complex II) of the electron transport chain contributes to localized mROS that regulates plant stress and defense responses. We identify an Arabidopsis mutant in the Complex II subunit, SDH1-1, through a screen for...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/70244
Source: PNAS - Proceedings of the National Academy of Sciences of the United States of America
DOI: 10.1073/pnas.1016060108

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