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Sulfuriferula thiophila sp. nov., a chemolithoautotrophic sulfur-oxidizing bacterium, and correction of the name Sulfuriferula plumbophilus
Watanabe, Kojima and Fukui 2015
to Sulfuriferula plumbiphila corrig.
Abstract
A novel sulfur-oxidizing bacterium designated strain mst6T was isolated from spring water of Masutomi hot spring in Japan. The cells were rod-shaped (1.2–4.0 × 0.5–0.7 μm) and Gram-stain-negative. The G+C content of genomic DNA was around 52.6 mol%. The isolate possessed summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c), C16 : 0 and C12 : 0 as major cellular fatty acids. Strain mst6T grew by inorganic carbon fixation and oxidation of inorganic sulfur compounds with oxygen as an electron acceptor. The isolate grew over a temperature range of 5–34 °C, a NaCl concentration range of 0–110 mM and a pH range of 4.6–8.1. Optimum growth occurred at 32 °C, in the absence of NaCl and at pH 5.9–6.2. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain mst6T belongs to the family Sulfuricellaceae in the class Betaproteobacteria. The closest cultured relative was Sulfuriferula multivorans TTNT with a 16S rRNA gene sequence similarity of 97.0 %. On the basis of the data obtained in this study, strain mst6T represents a novel species of the genus Sulfuriferula, for which the name Sulfuriferula thiophila sp. nov. is proposed. The type strain is mst6T ( = NBRC 111150T = DSM 101871T). In addition, we propose correcting the name Sulfuriferula plumbophilus Watanabe, Kojima and Fukui 2015 to Sulfuriferula plumbiphila corrig. based on Rule 12c, Rule 61 and Appendix 9 of the International Code of Nomenclature of Prokaryotes.
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