title: Isolation and characterization of a fast-growing, thermophilic methanobacterium species.
abstract: A thermophilic, autotrophic methanogen (strain CB12, DSM 3664) was isolated from a mesophilic biogas digestor. This bacterium used H(2)-CO(2) or formate as a substrate and grew as short rods, sometimes in pairs and in crooked filaments. Motility was not observed. Its optimum temperature (56 degrees C) was lower than that of other thermophilic members of the genus Methanobacterium. The maximum observed specific growth rate was 0.564 h (74-min doubling time).
authors.affiliation: Institute of Biology, Academia Sinica, Chengdu, China, and Division of Environmental and Occupational Health Sciences, School of Public Health, University of California, Los Angeles, California 90024.
authors.forename: Y
authors.initials: Y
authors.lastname: Zhao
authors.forename: H
authors.initials: H
authors.lastname: Zhang
authors.forename: D R
authors.initials: DR
authors.lastname: Boone
authors.forename: R A
authors.initials: RA
authors.lastname: Mah