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Mitochondrial redox biology and homeostasis in plants

Lookup NU author(s): Professor Graham Noctor, Professor Christine Foyer

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Abstract

Mitochondria are key players in plant cell redox homeostasis and signalling. Earlier concepts that regarded mitochondria as secondary to chloroplasts as the powerhouses of photosynthetic cells, with roles in cell proliferation, death and ageing described largely by analogy to animal paradigms, have been replaced by the new philosophy of integrated cellular energy and redox metabolism involving mitochondria and chloroplasts. Thanks to oxygenic photosynthesis, plant mitochondria often operate in an oxygen- and carbohydrate-rich environment. This rather unique environment necessitates extensive flexibility in electron transport pathways and associated NAD(P)-linked enzymes. In this review, mitochondrial redox metabolism is discussed in relation to the integrated cellular energy and redox function that controls plant cell biology and fate. © 2006 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Noctor G, De Paepe R, Foyer CH

Publication type: Review

Publication status: Published

Journal: Trends in Plant Science

Year: 2007

Volume: 12

Issue: 3

Pages: 125-134

Print publication date: 01/03/2007

ISSN (print): 1360-1385

ISSN (electronic): 1878-4372

URL: http://dx.doi.org/10.1016/j.tplants.2007.01.005

DOI: 10.1016/j.tplants.2007.01.005

PubMed id: 17293156

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