Venenivibrio stagnispumantis gen. nov., sp. nov., a thermophilic hydrogen-oxidizing bacterium isolated from Champagne Pool, Waiotapu, New Zealand
Hetzer, Adrian and McDonald, Ian R. and Morgan, Hugh W.,, 58, 398-403 (2008),
doi = https://doi.org/10.1099/ijs.0.64842-0,
publicationName = Microbiology Society,
issn = 1466-5026,
abstract= A novel thermophilic, hydrogen-oxidizing bacterium, designated strain CP.B2T, was isolated from a terrestrial hot spring in Waiotapu, New Zealand. Cells were motile, slightly rod-shaped, non-spore-forming and Gram-negative. Isolate CP.B2T was an obligate chemolithotroph, growing by utilizing H2 as electron donor and O2 as corresponding electron acceptor. Elemental sulfur (S0) or thiosulfate () was essential for growth. Microbial growth occurred under microaerophilic conditions in 1.0–10.0 % (v/v) O2 [optimum 4–8 % (v/v) O2], between 45 and 75 °C (optimum 70 °C) and at pH values of 4.8–5.8 (optimum pH 5.4). The DNA G+C content was 29.3 mol%. 16S rRNA gene sequence analysis demonstrated that strain CP.B2T belonged to the order Aquificales, with a close phylogenetic relationship to Sulfurihydrogenibium azorense (94 % sequence similarity to the type strain). However, genotypic and metabolic characteristics differentiated the novel isolate from previously described genera of the Aquificales. Therefore, CP.B2T represents a novel species in a new genus, for which the name Venenivibrio stagnispumantis gen. nov., sp. nov. is proposed. The type strain of Venenivibrio stagnispumantis is CP.B2T (=JCM 14244T =DSM 18763T).,
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