The Organization and Regulation of Electron Transport in Plant Mitochondria

The Organization and Regulation of Electron Transport in Plant Mitochondria The recent general acceptance that ATP synthesis may be coupled to electron transport by a system similar to that proposed by Mitchell when he formulated the chemiosmotic theory (96) has resulted in a broadening of the scope of research into the functioning of mitochondria from many sources. Research on plant mitoCopyright 1976. All rights reserved PALMER chondria has benefited from this change of emphasis and from the growing interest in the properties of mitochondria isolated from microorganisms (88). The introduc­ tion of new techniques has also made it possible to determine the nature, behavior, and location of the members of the respiratory chain more precisely. In this review I shall discuss advances made in this field, particularly with respect to the organiza­ tion and interaction of the NADH dehydrogenase systems. I shall also speculate on the metabolic regulation and significance of these enzynes, CRITERIA FOR THE ASSESSMENT OF MITOCHONDRIAL PURITY AND INTEGRITY It has always been considered more difficult to isolate mitochondria from plant tissue than from animal tissue. This is due to three main factors: (a) the diffic�lty of breaking the tough cell wall without damaging the organelle; (b) the difficulty of controlling the pH because the http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Plant Biology Annual Reviews

The Organization and Regulation of Electron Transport in Plant Mitochondria

Annual Review of Plant Biology, Volume 27 (1) – Jun 1, 1976

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Publisher
Annual Reviews
Copyright
Copyright 1976 Annual Reviews. All rights reserved
Subject
Review Articles
ISSN
1040-2519
DOI
10.1146/annurev.pp.27.060176.001025
Publisher site
See Article on Publisher Site

Abstract

The recent general acceptance that ATP synthesis may be coupled to electron transport by a system similar to that proposed by Mitchell when he formulated the chemiosmotic theory (96) has resulted in a broadening of the scope of research into the functioning of mitochondria from many sources. Research on plant mitoCopyright 1976. All rights reserved PALMER chondria has benefited from this change of emphasis and from the growing interest in the properties of mitochondria isolated from microorganisms (88). The introduc­ tion of new techniques has also made it possible to determine the nature, behavior, and location of the members of the respiratory chain more precisely. In this review I shall discuss advances made in this field, particularly with respect to the organiza­ tion and interaction of the NADH dehydrogenase systems. I shall also speculate on the metabolic regulation and significance of these enzynes, CRITERIA FOR THE ASSESSMENT OF MITOCHONDRIAL PURITY AND INTEGRITY It has always been considered more difficult to isolate mitochondria from plant tissue than from animal tissue. This is due to three main factors: (a) the diffic�lty of breaking the tough cell wall without damaging the organelle; (b) the difficulty of controlling the pH because the

Journal

Annual Review of Plant BiologyAnnual Reviews

Published: Jun 1, 1976

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