Thermotomaculum hydrothermale gen. nov., sp nov., a novel heterotrophic thermophile within the phylum Acidobacteria from a deep-sea hydrothermal vent chimney in the Southern Okinawa Trough

Izumi, Hiroshi; Nunoura, Takuro; Miyazaki, Masayuki et al.

Extremophiles, 2012, 16(2), 245-253

Permalink : https://hdl.handle.net/2115/48725

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アクセス権
open access
URI
https://hdl.handle.net/2115/48725
タイトル
Thermotomaculum hydrothermale gen. nov., sp nov., a novel heterotrophic thermophile within the phylum Acidobacteria from a deep-sea hydrothermal vent chimney in the Southern Okinawa Trough
著者
Izumi, Hiroshi ; Nunoura, Takuro ; Miyazaki, Masayuki ; Mino, Sayaka ; Toki, Tomohiro ; Takai, Ken ; Sako, Yoshihiko ; Sawabe, Tomoo ; Nakagawa, Satoshi
著者名
Izumi, Hiroshi
著者名
Nunoura, Takuro
著者名
Miyazaki, Masayuki
著者名
Mino, Sayaka
著者名
Toki, Tomohiro
著者名
Takai, Ken
著者名
Sako, Yoshihiko
e-Rad_Researcher
30241376
著者名
Sawabe, Tomoo
e-Rad_Researcher
70435832
著者名
Nakagawa, Satoshi
言語
英語
キーワード
Acidobacteria
Deep-sea hydrothermal vent
Thermophile
Fermentation
発行日
2012-03
出版者
Springer Japan
収録物名
Extremophiles
巻(号)
16(2)
ページ
245-253
抄録
A novel heterotrophic, thermophilic bacterium, designated strain AC55T, was isolated from a deep-sea hydrothermal vent chimney at the Hatoma Knoll in the Okinawa Trough, Japan. Cells of strain AC55T were non-motile, long rods (2.0-6.8μm long and 0.3-0.6μm wide). The strain was an obligatory anaerobic heterotroph capable of fermentative growth on complex proteinaceous substances. Elemental sulfur was reduced to hydrogen sulfide but did not stimulate growth. Growth was observed between 37 and 60℃ (optimum 55℃), pH 5.5 and 8.5 (optimum pH 6.6), and in the presence of 1.5-4.5% (w/v) NaCl (optimum 2.5%, w/v). Menaquinone-7 and -8 were the major respiratory quinones. The G + C content of the genomic DNA from strain AC55T was 51.6 mol%. The 16S rRNA gene sequence analysis revealed that strain AC55T was the first cultivated representative of Acidobacteria subdivision 10. Based on the physiological and phylogenetic features of the novel isolate, the genus name Thermotomaculum gen. nov. is proposed, with Thermotomaculum hydrothermale sp. nov. as the type species. The type strain is AC55T (=JCM 17643T = DSM 24660T = NBRC 107904T).
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
権利情報
The final publication is available at www.springerlink.com
PISSN
1431-0651
関連情報
PMID
22212657
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1007/s00792-011-0425-9