Energetic problems faced by micro-organisms growing or surviving on parsimonious energy sources and at acidic pH: I. Acidithiobacillus ferrooxidans as a paradigm

Stuart J. Ferguson, W John Ingledew

Research output: Contribution to journalReview articlepeer-review

Abstract

The mitochondrial paradigm for a chemiosmotic energy transduction mechanism requires frequently Misunderstood modifications for application to microbes growing and Surviving at acidic pH values and/or with relatively weak reductants as energy sources. Here the bioenergetics of the iron oxidiser Acidithiobacillus ferrooxidans are reviewed and analysed so as to develop the general bioenergetic principles for understanding organisms that grow under these conditions. Extension of the principles Outlined herein to organisms that survive (as opposed to grow) under these conditions is to be presented in a Subsequent article. (C) 2008 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)1471-1479
Number of pages9
JournalBiochimica et Biophysica Acta - Bioenergetics
Volume1777
Issue number12
DOIs
Publication statusPublished - Dec 2008

Keywords

  • Acidithiobacillus
  • Inverse membrane potential
  • Reversed electron transport
  • Cytochrome oxidase
  • CYTOCHROME-C-OXIDASE
  • ION-OXIDIZING BACTERIUM
  • ACIDOPHILE THIOBACILLUS-FERROOXIDANS
  • HEME-COPPER OXIDASES
  • RHODOBACTER-SPHAEROIDES
  • NITROSOMONAS-EUROPAEA
  • PROTONMOTIVE FORCE
  • ELECTRON-TRANSFER
  • ESCHERICHIA-COLI
  • OXIDATION

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