Influence of sulfide compounds on the metabolism of Methanobacterium strain AZ |
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Authors: | A Wellinger K Wuhrmann |
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Institution: | (1) Swiss Federal Institute of Technology Zürich, Ueberlandstr. 133, CH-8600 Dübendorf, Switzerland;(2) Federal Institute for Water Resources and Water Pollution Control, Ueberlandstr. 133, CH-8600 Dübendorf, Switzerland;(3) Present address: Department of Dairy Science, University of Illinois, 61801 Urbana, Ill, USA |
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Abstract: | Various organic sulfides and inorganic sulfide were studied in respect to their effect on growth and methane production of Methanobacterium strain AZ. In mineral, sulfide-free medium, cysteine regulated the specific rate of methane production (optimum concentration =5·10–4 mole/l). A supplement of sulfide (10–4 mole/l) caused an additional stimulation. Coenzyme M** or glutathione could be substituted for cysteine when sulfide was present. Growth was stimulated by CoM and glutathione to the same extent as with cysteine in sulfide-containing media. The concentration of sulfide in cysteine-containing media affected the excretion of amino acids.Abbreviations CoM
Coenzyme M; HS–CH2–CH2–SO3 (Taylor and Wolfe, 1974) |
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Keywords: | Methanobacterium strain AZ Growth and methane formation Role of cystine sulfide CoM and glutathione |
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