title: Characterization of a new obligately anaerobic thermophile, Thermoanaerobacter wiegelii sp. nov.
abstract: An obligately anaerobic, extremely thermophilic Thermoanaerobacter species was isolated from a freshwater pool formed from a geothermally heated (56 to 69 degrees C) water outlet in Government Gardens, Rotorua, New Zealand. This organism was a spore-forming, gram-negative, rod-shaped bacterium. Strain Rt8.B1T (= DSM 10319T) (T = type strain) fermented a wide variety of mono-, di-, and polysaccharides and produced ethanol, acetate, lactate, propionate, and hydrogen. Sugar alcohols were also fermented, but organic acids and amino acids were not utilized. On the basis of its morphological characteristics, DNA G + C content, obligately anaerobic, thermophilic, polysaccharolytic nature, and levels of 16S rRNA sequence homology, we propose that strain Rt8.B1T should be classified in the genus Thermoanaerobacter as a new species, Thermoanaerobacter wiegelii.
authors.affiliation: Thermophile and Microbial Biochemistry and Biotechnology Unit, University of Waikato, Hamilton, New Zealand.
authors.forename: G M
authors.initials: GM
authors.lastname: Cook
authors.forename: F A
authors.initials: FA
authors.lastname: Rainey
authors.forename: B K
authors.initials: BK
authors.lastname: Patel
authors.forename: H W
authors.initials: HW
authors.lastname: Morgan
mesh_terms: D001421:Bacteria, Anaerobic / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D001483:Base Sequence; D004275:DNA, Ribosomal / Q000235:genetics; D016988:Gram-Positive Asporogenous Rods, Irregular / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D008826:Microbial Sensitivity Tests; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D014871:Water Microbiology
chemical_list: D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S