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CHARACTERIZATION OF A NEW THERMOPHILIC SULFATE-REDUCING BACTERIUM THERMODESULFOVIBRIO YELLOWSTONII GEN. NOV. AND SP. NOV.: ITS PHYLOGENETIC RELATIONSHIP TO THERMODESULFOBACTERIUM COMMUNE AND THEIR ORIGINS DEEP WITHIN THE BACTERIAL DOMAIN
Citation:
Henry, E., R. Devereux, J. Maki, C. Gilmour, C. Woese, L. Mandelco, R. Schauder, C. Remsen, AND R. Mitchell. CHARACTERIZATION OF A NEW THERMOPHILIC SULFATE-REDUCING BACTERIUM THERMODESULFOVIBRIO YELLOWSTONII GEN. NOV. AND SP. NOV.: ITS PHYLOGENETIC RELATIONSHIP TO THERMODESULFOBACTERIUM COMMUNE AND THEIR ORIGINS DEEP WITHIN THE BACTERIAL DOMAIN. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-94/277 (NTIS PB94191038).
Description:
A thermophilic sulfate-reducing vibrio isolated from thermal vent water in Yellowstone Lake, Wyoming USA, is described. he Gram-negative, curve rod-shaped cells averaged 0.3 um wide and 1.5 um long. hey were motile by means of a single polar flagellum. rowth was observed between 40 and 70 degrees C with optimal growth at 65 degrees C. ultures remained viable for one year at 27 degrees C although spore-formation was not observed. n the presence of sulfate, growth was observed only with lactate, pyruvate, hydrogen plus acetate, or formate plus acetate. yruvate was the only compound observed to support fermentative growth. yruvate and lactate were oxidized to acetate. esulfofuscidine and c-type cytochromes were present. he G+C content was 29.5 mol%. he divergence in the 16S ribosomal RNA sequences between the new isolate and Thermodesulfobacterium commune suggests that these two thermophilic sulfate-reducing bacteria represents different genera. hese two bacteria depict a lineage that branches deeply within the Bacteria domain and is clearly distinct from previously defined phylogenetic lines of sulfate-reducing bacteria. train YP87 is described as the type strain of the new genus and species Thermodesulfovibrio yellowstonii.