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Ueno, Akio*; Tamazawa, Satoshi*; Tamamura, Shuji*; Murakami, Takuma*; Kiyama, Tamotsu*; Inomata, Hidenori*; Amano, Yuki; Miyakawa, Kazuya; Tamaki, Hideyuki*; Naganuma, Takeshi*; et al.
International Journal of Systematic and Evolutionary Microbiology, 71(2), p.004683_1 - 004683_10, 2021/02
Times Cited Count:11 Percentile:53.26(Microbiology)A novel mesophilic sulfate-reducing bacterium, designated strain HN2, was isolated from groundwater sampled from the subsurface Miocene Wakkanai Formation located in Horonobe, Hokkaido, Japan. The cells were Gram-negative rods, with motility conferred by a single polar flagellum. The isolate expressed desulfoviridin, but no catalase or oxidase activities was detected. Strain HN2
grew in a temperature range of 5-43
C (optimum, 35
C) and in a pH range of 6.5-7.5 (optimum, pH 7.0-7.3). It used sulfate, thiosulfate, dimethyl sulfoxide, anthraquinone-2,6-disulfonate, Fe
, and manganese oxide as electron acceptors, but not elemental sulfur, nitrite, or nitrate. The bacterium showed very weak growth with sulfite as the electron acceptor. The strain fermented pyruvate and cysteine in the absence of sulfate, but not malate or succinate. The bacterium did not require NaCl, but tolerated up to 4% NaCl (w/v). Strain HN2
did not require vitamins. The G+C content of the genomic DNA was 56.66 mol%. A 16S rRNA gene sequence analysis showed that the closest recognized relative of strain HN2
is
JS1
(97.0% similarity). The average nucleotide identity (ANI) value between strain HN2
and D.
JS1
was 79.8%. Based on the phenotypic and molecular genetic evidence, the isolate is assigned to the new species
sp. nov. The type strain is HN2
(=DSM 101010
=NBRC 112213
).
Yang, Y.*; Ito, Takashi*; Yokobori, Shinichi*; Shimada, Haruo*; Itahashi, Shiho*; Sato, Katsuya; Oba, Hirofumi*; Narumi, Issei; Yamagishi, Akihiko*
International Journal of Systematic and Evolutionary Microbiology, 60, p.776 - 779, 2010/04
Times Cited Count:27 Percentile:50.65(Microbiology)Yang, Y.*; Ito, Takashi*; Yokobori, Shinichi*; Itahashi, Shiho*; Shimada, Haruo*; Sato, Katsuya; Oba, Hirofumi; Narumi, Issei; Yamagishi, Akihiko*
International Journal of Systematic and Evolutionary Microbiology, 59, p.1862 - 1866, 2009/00
Times Cited Count:32 Percentile:55.46(Microbiology)An orange pigmented, non-motile, coccoid bacterial strain, TR0125, was isolated from dust samples collected in the high atmosphere above Japan. Phylogenetic analysis based on 16S rRNA gene sequences showed that it was within the radiation of species. Major peptidoglycan amino acids were D-glutamic acid, glycine, D-alanine, L-alanine and ornithine. Predominant fatty acids were 17:0 iso, iso 17:1
9c and 15:0 iso. Strong resistance to desiccation, UV-C and
-radiation, high DNA G+C content also supported the affiliation of strain TR0125
to the genus
. TR0125
had a highest similarity value (95.7 %) of the 16S rRNA gene sequence to the type strain of the species
, and phylogenetic analysis shows that it was further separated from
than from
, indicating that strain TR0125
was not a member of these two
species. Besides, there were phenotypic differences between strain TR0125
and type strains of the two species. Therefore, we propose a new species of the genus
,
sp. nov. (type strain, TR0125
= JCM 11750
= DSM 21212
), to accommodate this isolate.