The Hydrogen Economy of Methanosarcina barkeri: Life in the Fast Lane

J Bacteriol. 2018 Sep 24;200(20):e00445-18. doi: 10.1128/JB.00445-18. Print 2018 Oct 15.

Abstract

Two recent studies (T. D. Mand, G. Kulkarni, and W. W. Metcalf, J. Bacteriol 200:e00342-18, 2018, https://doi.org/10.1128/JB.00342-18, and G. Kulkarni, T. D. Mand, and W. W. Metcalf, mBio 9:e01256-18, 2018, https://doi.org/10.1128/mBio.01256-18) analyzed an impressive array of hydrogenase-deficient mutant strains of Methanosarcina barkeri not only to describe H2-based growth but also to demonstrate the conservation of energy with intracellular hydrogen cycling, a novel strategy for creating a proton motive force to support ATP synthesis.

Keywords: acetate metabolism; hydrogen cycling; hydrogenase; methane; methanol metabolism.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.
  • Comment

MeSH terms

  • Hydrogen
  • Hydrogenase*
  • Methane
  • Methanosarcina barkeri*
  • Proton-Motive Force

Substances

  • Hydrogen
  • Hydrogenase
  • Methane