Isolation and characterization of a novel alkalitolerant thermophile, Anaerobranca horikoshii gen. nov., sp. nov

International Journal of Systematic Bacteriology
M EngleJ Wiegel

Abstract

Nine moderately alkalitolerant thermophilic bacteria with similar properties were isolated from water and soil samples obtained from Yellowstone National Park. These Gram-type-positive, rod-shaped bacteria produce cells with primary branches. The cells are peritrichous and exhibit only slight tumbling motility. At 60 degrees C the pH range for growth is 6.9 to 10.3, and the optimum pH is 8.5. At pH 8.5 the temperature range for growth is 34 to 66 degrees C, with an optimum temperature of 57 degrees C. The strains are mainly proteolytic. The fermentation products from yeast extract are acetate, CO2, and H2. Fumarate added to minimal medium containing yeast extract is stoichiometrically converted to succinate, indicating that it is used as an alternative electron acceptor. The DNA G + C content is 33 to 34 mol%. On the basis of its unique properties, such as branch formation, growth at alkaline pH values at elevated temperatures, and the relative distance of its 16S rRNA sequence from those of other known bacteria, we propose that strain JW/YL-138T (T = type strain) and eight similar strains represent a new genus and species, Anaerobranca horikoshii. Strain JW/YL-138 is designated the type strain of the type species, A. horikoshi...Continue Reading

Citations

Dec 19, 2000·Enzyme and Microbial Technology·S DubeS I Alam
Aug 3, 2002·Environmental Microbiology·Peter StougaardOle C Hansen
Jun 9, 2004·Applied and Environmental Microbiology·Costanzo BertoldoWolfgang Liebl
Aug 29, 2012·Microbial Cell Factories·Simon Rittmann, Christoph Herwig
Jan 1, 2004·Irish Veterinary Journal·Jane A Irwin, Alan W Baird
Mar 5, 2010·Prikladnaia biokhimiia i mikrobiologiia·E V MorozkinaO V Koroleva
Apr 2, 2008·Annals of the New York Academy of Sciences·Isaac D Wagner, Juergen Wiegel
Jun 5, 2008·International Journal of Systematic and Evolutionary Microbiology·Vadim KevbrinJuergen Wiegel
May 15, 2004·International Journal of Systematic and Evolutionary Microbiology·Vladimir GorlenkoKenneth Nealson
May 19, 2021·International Journal of Systematic and Evolutionary Microbiology·Marianne QuéméneurAnne Postec
Dec 10, 1999·Microbiology and Molecular Biology Reviews : MMBR·K Horikoshi

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