Emended Description of Methanogenium thermophilicum, Rivard and Smith, and Assignment of New Isolates to this Species
1985; Elsevier BV; Volume: 6; Issue: 1 Linguagem: Inglês
10.1016/s0723-2020(85)80014-x
ISSN1618-0984
AutoresH.-P. Zabel, Helmut König, Josef Winter,
Tópico(s)Anaerobic Digestion and Biogas Production
ResumoA new thermophilic, coccoid methanogen from a potato waste digester, Methanogenium thermophilicum strain Ratisbona is described. Single cells possess one flagellum and several pili. The optimum growth temperature is 58 °C and the minimum doubling time 3.4 h. Methane is formed from H2: CO2 or formate. The G+C content of the DNA is 57 mol %. The new isolate is closely related to Methanogenium thermophilicum DSM 2373 and the H2-oxidizing methanogen of Ferguson and Mah (1983), which we assign to Methanogenium thermophilicum as strain Los Angeles. The species description of Methanogenium thermophilicum is emended.
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