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Thiosulfativibrio zosteraegen. nov., sp. nov., andThiosulfatimonas sediminisgen. nov., sp. nov.

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Title: Thiosulfativibrio zosteraegen. nov., sp. nov., andThiosulfatimonas sediminisgen. nov., sp. nov.
Authors: Mochizuki, Jun Browse this author
Kojima, Hisaya Browse this author →KAKEN DB
Fukui, Manabu Browse this author →KAKEN DB
Keywords: Sulfur-oxidizing bacteria
Brackish lake
Novel genus
Issue Date: 21-Oct-2020
Publisher: Springer
Journal Title: Archives of Microbiology
Volume: 203
Start Page: 951
End Page: 957
Publisher DOI: 10.1007/s00203-020-02090-9
Abstract: Aerobic, Gram-stain-negative, obligately chemolithoautotrophic thiosulfate-oxidizing bacteria, strains AkT22(T)and aks77(T)were isolated from a brackish lake in Japan. Strains AkT22(T)and aks77(T)were isolated from samples of eelgrass and sediment, respectively. Growth on sulfide, tetrathionate, elemental sulfur, and organic substrates was not observed for both strains. Growth of the strains was observed at 5 degrees C or higher temperature, with optimum growth at 22 degrees C. Strain AkT22(T)grew at a pH range of 5.8-8.0, with optimum growth at pH 6.7-7.8. Strain aks77(T)grew at a pH range of 5.8-8.5, with optimum growth at pH 7.0-7.9. Major cellular fatty acids (> 10% of total) of strain AkT22(T)were C-16:1, C-18:1, and C-16:0. The sole respiratory quinone was ubiquinone-8 in both strains. The genome of strain AkT22(T)consisted of a circular chromosome, with size of approximately 2.6 Mbp and G + C content of 43.2%. Those values of the genome of strain aks77(T)were ca. 2.7 Mbp and 45.5%, respectively. Among cultured bacteria,Thiomicrorhabdus aquaedulcisHaS4(T)showed the highest sequence identities of the 16S rRNA gene, to strains AkT22(T)(94%) and aks77(T)(95%). On the basis of these results,Thiosulfativibrio zosteraegen. nov., sp. nov. andThiosulfatimonas sediminisgen. nov., sp. nov. are proposed, with type strains of AkT22(T)(= BCRC 81184(T) = NBRC 114012(T) = DSM 109948(T)) and aks77(T)(= BCRC 81183(T) = NBRC 114013(T)), respectively.
Rights: This is a post-peer-review, pre-copyedit version of an article published in Archives of Microbiology. The final authenticated version is available online at:
Type: article (author version)
Appears in Collections:低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 小島 久弥

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