Hydrogenivirga okinawensis sp. nov., a thermophilic sulfur-oxidizing chemolithoautotroph isolated from a deep-sea hydrothermal field, Southern Okinawa Trough.

Hydrogenivirga okinawensis sp. nov., a thermophilic sulfur-oxidizing chemolithoautotroph isolated from a deep-sea hydrothermal field, Southern Okinawa Trough. Research Abstract Details 

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Hydrogenivirga okinawensis sp. nov., a thermophilic sulfur-oxidizing chemolithoautotroph isolated from a deep-sea hydrothermal field, Southern Okinawa Trough. Abstract Text:

A novel extremely thermophilic sulfur-oxidizing bacterium, strain LS12-2(T), was isolated from a deep-sea hydrothermal field at the Yonaguni Knoll IV, Southern Okinawa Trough. Cells of strain LS12-2(T) were motile rods, 1.5-4.0 mum in length and 0.4-0.5 mum in width. Strain LS12-2(T) was an obligate chemolithoautotroph that could utilize elemental sulfur or thiosulfate as an electron donor and nitrate or oxygen as an electron acceptor. Growth was observed at 65-85 degrees C (optimum 70-75 degrees C), pH 5.8-8.3 (optimum pH 6.9-7.5), 1.0-4.0 % (w/v) NaCl (optimum 2.5 %) and 1.0-7.0 % O(2) in the gas phase (optimum 3.0 %). Fatty acids detected were C(16 : 0) (8.0 %), C(18 : 0) (9.0 %), C(18 : 1) (62.5 %) and C(20 : 1) (20.5 %). The genomic DNA G+C content was 51.3 mol%. 16S rRNA gene sequence analysis indicated that strain LS12-2(T) belonged to the genus Hydrogenivirga. Based on physiological and phylogenetic characteristics of the isolate, it is proposed that this strain represents a novel species in the genus Hydrogenivirga, Hydrogenivirga okinawensis sp. nov. The type strain of Hydrogenivirga okinawensis is LS12-2(T) (=JCM 13302(T)=DSM 17378(T)).

Hydrogenivirga okinawensis sp. nov., a thermophilic sulfur-oxidizing chemolithoautotroph isolated from a deep-sea hydrothermal field, Southern Okinawa Trough. Publishing Authors By Initials

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Hydrogenivirga okinawensis sp. nov., a thermophilic sulfur-oxidizing chemolithoautotroph isolated from a deep-sea hydrothermal field, Southern Okinawa Trough. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: International journal of systematic and evolutiona

VOLUME: 58

Page Numbers: 676-81

Journal Abbreviation: Int. J. Syst. Evol. Microbiol.

ISSN: 1466-5026

DAY: 5

MONTH: Mar

YEAR: 2008

Hydrogenivirga okinawensis sp. nov., a thermophilic sulfur-oxidizing chemolithoautotroph isolated from a deep-sea hydrothermal field, Southern Okinawa Trough. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Hydrogenivirga okinawensis sp. nov., a thermophilic sulfur-oxidizing chemolithoautotroph isolated from a deep-sea hydrothermal field, Southern Okinawa Trough.

AFFILIATION: Subground Animalcule Retrieval (SUGAR) Program, Extremobiosphere Research Center, Japan Agency for Marine-Earth Science & Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan.

Country: England

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MEDLINETA: Int J Syst Evol Microbiol

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