1887

Abstract

A novel thermophilic and heterotrophic sulfate-reducing bacterium, strain TFISO9, was isolated from a deep-sea hydrothermal field at the Yonaguni Knoll IV in the Southern Okinawa Trough. The cells were motile rods 2.5–5.0 μm in length and 0.6–0.9 μm in width. Strain TFISO9 was an obligate heterotroph and reduced sulfate. It grew between 35 and 60 °C (optimum 50 °C), at pH 5.4–7.9 (optimum pH 5.9–6.4) and with 1.5–4.5 % NaCl (optimum 2.5 %). The fatty acid composition was C (61.5 %) and 12Me (38.5 %). The DNA G+C content was 34.9 mol%. The 16S rRNA gene sequence analysis indicated that strain TFISO9 belonged to the genus Based on physiological and phylogenetic characteristics, strain TFISO9 represents a novel species for which the name sp. nov. is proposed. The type strain is TFISO9 (=JCM 13304=DSM 17375).

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2007-10-01
2019-10-18
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vol. , part 10, pp. 2360-2364

An electron micrograph of a negatively stained cell of strain TFISO9 and a figure showing the effect of temperature and NaCl on growth of strain TFISO9 . [PDF](579 KB)



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