Clostridium halophilium sp. nov. and C. litorale sp. nov., an obligate halophilic and a marine species degrading betaine in the Stickland reaction |
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| Authors: | Claudi Fendrich Hans Hippe Gerhard Gottschalk |
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| Affiliation: | (1) Institut für Mikrobiologie der Georg-August-Universität, Grisebachstrasse 8, D-3400 Göttingen, Federal Republic of Germany;(2) Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Mascheroderweg 1B, D-3300 Braunschweig, Federal Republic of Germany;(3) LB Genetik, Universität Kaiserslautern, Paul-Ehrlich-Strasse 22, D-6750 Kaiserslautern, Federal Republic of Germany |
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| Abstract: | Two new mesophilic, sporeforming, gram-positive, strictly anaerobic, rod-shaped bacteria were isolated which utilized betaine in the Stickland reaction. Strain M1 was obtained from pasteurized hypersaline sediments. Cells were motile rods and formed spherical terminal spores. Betaine was used with hydrogen and several amino acids as electron donors. In addition, several carbohydrates served as substrates. Growth required 1.5% NaCl with an optimum at 6.0% NaCl. The guanine plus cytosine content of the DNA was 26.9%. This strain is described as a new species, Clostridium halophilum.Strain W6 was isolated from marine sediments. Cells were motile rods and formed ovoid, subterminal spores. Betaine was used with hydrogen and several amino acids as electron donors. Carbohydrates were not fermented. Growth optimum was at 1.0% NaCl. The guanine plus cytosine content of the DNA was 26.1%. This strain is described as a new species, Clostridium litorale.Non standard abbreviations DMG N,N-dimethylglycine - TMA trimethylamine - PY peptone-yeast extract - PYG peptone-yeast extract-glucose |
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| Keywords: | Clostridium halophilum sp. nov. Clostridium litorale sp. nov. Marine and hypersaline sediments Halophilic bacteria Stickland reaction Betaine fermentation |
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