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Watanabe M, Takahashi A, Kojima H, Miyata N, Fukui M. Desulfofustis limnaeus sp. nov., a freshwater sulfate-reducing bacterium isolated from marsh soil. Arch Microbiol 2022; 204:647. [PMID: 36166176 DOI: 10.1007/s00203-022-03261-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 11/29/2022]
Abstract
A novel sulfate-reducing bacterium, strain PPLLT, was isolated from marsh soil. Cells of strain PPLLT were rod-shaped with length of 1.5 μm and width of 0.7 μm. Growth was observed at 22-37 °C (optimum 35 °C) and pH 6.8-8.4 (optimum 7.3). Lactate, succinate, fumarate, formate and malate were utilized as electron donors for sulfate reduction. Fermentative growth was not observed on tested organic acids. Besides sulfate, sulfite, thiosulfate and elemental sulfur were utilized as electron acceptors. Hydrogen is used only in the presence acetate or yeast extract. The major fatty acid was C16:0. The complete genome of strain PPLLT was composed of a circular chromosome with length of 4.2 Mbp and G + C content of 57.7 mol%. Sequence analysis of the 16S rRNA gene showed that strain PPLLT was affiliated with the genus Desulfofustis in the family Desulfocapsaceae. On the basis of differences in the phylogenetic and phenotypic properties between the strain and the type strain of the genus Desulfofustis, strain PPLLT (DSM 110475T = JCM 39161T) is proposed as the type strain of a new species, with name of Desulfofustis limnaeus sp. nov.
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Affiliation(s)
- Miho Watanabe
- Department of Biological Environment, Faculty of Bioresource Sciences, Akita Prefectural University, Shimo-Shinjyo Nakano, Akita, 010-0195, Japan.
| | - Ayaka Takahashi
- Graduate School of Environmental Science, Hokkaido University, Kita-10, Nishi-5, Kita-ku, Sapporo, 060-0810, Japan.,The Institute of Low Temperature Science, Hokkaido University, Kita-19, Nishi-8, Kita-ku, Sapporo, 060-0819, Japan
| | - Hisaya Kojima
- Department of Biological Environment, Faculty of Bioresource Sciences, Akita Prefectural University, Shimo-Shinjyo Nakano, Akita, 010-0195, Japan.,The Institute of Low Temperature Science, Hokkaido University, Kita-19, Nishi-8, Kita-ku, Sapporo, 060-0819, Japan
| | - Naoyuki Miyata
- Department of Biological Environment, Faculty of Bioresource Sciences, Akita Prefectural University, Shimo-Shinjyo Nakano, Akita, 010-0195, Japan
| | - Manabu Fukui
- The Institute of Low Temperature Science, Hokkaido University, Kita-19, Nishi-8, Kita-ku, Sapporo, 060-0819, Japan
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