Production and Consumption of H2 during Growth of Methanosarcina spp. on Acetate

Appl Environ Microbiol. 1985 January; 49(1): 247–249.

PMCID: PMC238382

Production and Consumption of H₂ during Growth of Methanosarcina spp. on Acetate

Derek R. Lovley^†^* and James G. Ferry

Department of Anaerobic Microbiology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061

^* Corresponding author.

^† Present address: Mail Stop 432, U.S. Geological Survey, Reston, VA 22092.

This article has been cited by other articles in PMC.

Abstract

Methanosarcina sp. strain TM-1 and Methanosarcina acetivorans produced and consumed H₂ to maintain H₂ partial pressures of 16 to 92 Pa in closed cultures during growth on acetate. Strain TM-1 produced H₂ continuously when H₂ was continuously removed from the culture. The potential physiological significance of H₂ in acetate metabolism to methane is discussed.

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