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American Society for Microbiology, Applied and Environmental Microbiology, 2(68), p. 1005-1009, 2002

DOI: 10.1128/aem.68.2.1005-1009.2002

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Tolerance and Metabolic Response of Acetogenic Bacteria toward Oxygen

Journal article published in 2002 by Arno Karnholz, Kirsten Küsel, Kirsten K�sel, A. Go ner, Anita Gößner, Andreas Schramm ORCID, Harold L. Drake
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

ABSTRACT The acetogens Sporomusa silvacetica , Moorella thermoacetica , Clostridium magnum , Acetobacterium woodii , and Thermoanaerobacter kivui (i) grew in both semisolid and liquid cultivation media containing O 2 and (ii) consumed small amounts of O 2 . Low concentrations of O 2 caused a lag phase in growth but did not alter the ability of these acetogens to synthesize acetate via the acetyl coenzyme A pathway. Cell extracts of S. silvacetica , M. thermoacetica , and C. magnum contained peroxidase and NADH oxidase activities; catalase and superoxide dismutase activities were not detected.