Alternative NAD(P)H dehydrogenases of plant mitochondria

Allan G. Rasmusson, Kathleen L. Soole, Thomas E. Elthon

Research output: Contribution to journalReview article

207 Scopus citations

Abstract

Plant mitochondria have a highly branched electron transport chain that provides great flexibility for oxidation of cytosolic and matrix NAD(P)H. In addition to the universal electron transport chain found in many organisms, plants have alternative NAD(P)H dehydrogenases in the first part of the chain and a second oxidase, the alternative oxidase, in the latter part. The alternative activities are nonproton pumping and allow for NAD(P)H oxidation with varying levels of energy conservation. This provides a mechanism for plants to, for example, remove excess reducing power and balance the redox poise of the cell. This review presents our current understanding of the alternative NAD(P)H dehydrogenases present in plant mitochondria.

Original languageEnglish (US)
Pages (from-to)23-39
Number of pages17
JournalAnnual Review of Plant Biology
Volume55
DOIs
StatePublished - Jul 30 2004

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Keywords

  • Dehydrogenases
  • External
  • Internal
  • NADH

ASJC Scopus subject areas

  • Physiology
  • Molecular Biology
  • Plant Science
  • Cell Biology

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