A new anaerobic mesophilic cellulolytic Clostridium isolated from a methanogenic cellulose-enriched culture is described. Optimal growth occurs at 35°C and pH 7.0. Fructose, maltose, rhamnose, lactose, glucose, xylose, ribose, mannose, raffinose, cellobiose, arabinose, galactose, mannitol, adonitol, esculin, salicin, and trehalose serve as substrates for growth. The major fermentation products from cellulose or cellobiose are ethanol, acetate, formate, butyrate, isobutyrate, isovalerate, caproate, lactate, succinate, CO2, and H2. The deoxyribonucleic acid base composition is 38 mol% guanine plus cytosine. The type strain is 18A (= CECT 954).
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Copyright 1989, International Association of Microbiological Societies
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