Thermodesulfovibrio hydrogeniphilus

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• 作者：Olfa Haouari ; Marie-Laure Fardeau ; Jean-Luc Cayol ; Guy Fauque ; Corinne Casiot ; Franç ; oise Elbaz-Poulichet ; Moktar Hamdi ; Bernard Ollivier
• 关键词：Thermodesulfovibrio hydrogeniphilus ; Sulphate-reducing bacterium ; Hot spring ; Taxonomy
• 刊名：Systematic and Applied Microbiology
• 出版年：2008
• 出版时间：19 March 2008
• 年：2008
• 卷：31
• 期：1
• 页码：38-42
• 全文大小：201 K

文摘

A new thermophilic sulphate-reducing bacterium (strain Hbr5^T) was enriched and isolated from a terrestrial Tunisian hot spring. It was a non-spore-forming Gram-negative curved or vibrio-shaped bacterium. It appeared singly or in long chains and was actively motile by a polar flagellum. It possessed c-type cytochromes and desulfofuscidin. Growth occurred between 50 and 70 °C, with an optimum of 65 °C at pH 7.1. In the presence of sulphate as a terminal electron acceptor, this strain readily used H₂ but formate only poorly. It could use sulphate, thiosulphate, sulphite or arsenate as electron acceptors. Its DNA G+C content was 36.1 mol % . Based on phenotypic, genomic, and phylogenetic characteristics, strain Hbr5^T (=DSM 18151^T, =JCM 13991^T) is proposed to be assigned to a novel species of genus Thermodesulfovibrio, T. hydrogeniphilus sp. nov.