Fermentation of cinnamate by a mesophilic strict anaerobe, Acetivibrio multivorans sp. nov.
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A cinnamate-fermenting bacterium (strain PeC1) was isolated in pure culture from anoxic sludge of an oil refinery wastewater treatment facility. It was a mesophilic gram-negative non-sporing actively motile rod. It did not reduce nitrate, sulfte, or other sulfur compounds as electron acceptors. It fermented cinnamate to 3-phenylpropionate, benzoate, and acetate; crotonate to butyrate and acetate; pyruvate to lactate and acetate; acetoin to ethanol and acetate; and carbohydrates to ethanol, formate, and acetate. The DNA base ratio of the strain was 44 mol% guanine plus cytosine. It is described as a new species of the genus Acetivibrio, A. multivorans sp. nov.
Key wordsAcetivibrio Anaerobic Gram-negative Non-spore-former Degradation Fermentation Cinnamate 3-Phenylpropionate Acethate Ethanol
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