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Hydrogenimonas urashimensis sp. nov., a hydrogen-oxidizing chemolithoautotroph isolated from a deep-sea hydrothermal vent in the Southern Mariana Trough

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Title: Hydrogenimonas urashimensis sp. nov., a hydrogen-oxidizing chemolithoautotroph isolated from a deep-sea hydrothermal vent in the Southern Mariana Trough
Authors: Mino, Sayaka Browse this author →KAKEN DB
Shiotani, Taiki Browse this author
Nakagawa, Satoshi Browse this author →KAKEN DB
Takai, Ken Browse this author
Sawabe, Tomoo Browse this author →KAKEN DB
Keywords: Campylobacteria
Epsilonproteobacteria
Hydrogenimonas
Deep-sea hydrothermal vent
Thermophile
Issue Date: Jan-2021
Publisher: Elsevier
Journal Title: Systematic and applied microbiology
Volume: 44
Issue: 1
Start Page: 126170
Publisher DOI: 10.1016/j.syapm.2020.126170
Abstract: A novel thermophilic bacterium, strain SSM-sur55(T), was isolated from a chimney structure at the Urashima site on the Southern Mariana Trough in the Pacific Ocean. Growth was observed at temperatures between 25 and 60 degrees C (optimum, 55 degrees C; 180 min doubling time), at pH values between 5.3 and 7.2 (optimum, pH 5.9) and in the presence of between 1.6 and 5.6% (w/v) NaCl (optimum, 3.2%). The isolate used molecular hydrogen as its sole energy source, carbon dioxide as its sole carbon source, ammonium as its sole nitrogen source, and elemental sulfur as its sole sulfur source. Thiosulfate, molecular oxygen (0.1%, v/v) or elemental sulfur was utilized as its sole electron acceptor. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SSM-sur55(T) belonged to the genus Hydrogenimonas of the class "Campylobacteria", and its closest relative was Hydrogenimonas thermophila EP1-55-1%(T) (94.9%). On the basis of the phylogenetic, physiological and molecular characteristics, strain SSM-sur55(T) represents a novel species within the genus Hydrogenimonas, for which the name Hydrogenimonas urashimensis sp. nov. is proposed, with the type strain SSM-sur55(T) (JCM 19825 = KCTC 15926).
Rights: © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/84023
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 美野 さやか

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