Journal Article Desulfoplanes formicivorans gen. nov., sp nov., a novel sulfate-reducing bacterium isolated from a blackish meromictic lake, and emended description of the family Desulfomicrobiaceae

Watanabe, Miho  ,  Kojima, Hisaya  ,  Fukui, Manabu

65pp.1902 - 1907 , 2015-06-01 , International Union of Microbiological Societies
A novel sulfate-reducing bacterium, designated strain Pf12B(T), was isolated from sediment of meromictic Lake Harutori in Japan. Cells were vibroid (1.0 x 3.0-4.0 mu m), motile and Gram-stain-negative. For growth, the optimum pH was 7.0-7.5 and the optimum temperature was 42-45 degrees C. Strain Pf12B(T) used sulfate, thiosulfate and sulfite as electron acceptors. The G+C content of the genomic DNA was 55.4 mol%. Major cellular fatty acids were C-16:0 and C-18:0 The strain was desulfoviridin-positive. Phylogenetic analysis based on the 16S rRNA gene revealed that the novel strain belonged to the order Desulfovibrionales in the class Deltaproteobacteria. The closest relative was Desulfomicrobium baculatum DSM 4028(T) with which it shared 91 % 16S rRNA gene sequence similarity. On the basis of phylogenetic and phenotypic characterization, a novel species of a new genus belonging to the family Desulfomicrobiaceae is proposed, Desulfoplanes formicivorans gen. nov., sp. nov. The type strain of Desulfoplanes formicivorans is Pf12B(T) (=NBRC 110391(T)=DSM 28890(T)).

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