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Defective formation and/or utilization of carbon monoxide in H2/CO2 fermenting methanogens dependent on acetate as carbon source |
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| Authors: | Michael H Bott Bernhard Eikmanns Rudolf K Thauer |
| Institution: | (1) Mikrobiologie, Fachbereich Biologie, Philipps-Universität, D-3550 Marburg, Federal Republic of Germany |
| Abstract: | Autotrophic methanogens reduce CO2 to CO and assimilate CO in a carbonylation reaction. Heterotrophic species were found not to form CO and/or to incorporate CO into cell matiral. The absence of CO formation correlated with the absence of carbon monoxide dehydrogenase activity. The heterotrophic Methanobrevibacter ruminantium, Methanobrevibacter smithii, Methanococcus voltae and Methanospirillum hungatei (strain GP 1) were investigated. |
| Keywords: | Methanobrevibacter ruminantium Methanobrevibacter smithii Methanococcus voltae Methanospirillum hungatei Carbon monoxide dehydrogenase Carbon monoxide formation Carbon monoxide utilization Carbonylation reaction Autotrophic CO2 fixation Acetyl-CoA pathway |
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