2020年2月
Thermaurantimonas aggregans gen. nov., sp. nov., a moderately thermophilic heterotrophic aggregating bacterium isolated from microbial mats at a terrestrial hot spring.
International journal of systematic and evolutionary microbiology
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- 巻
- 70
- 号
- 2
- 開始ページ
- 1117
- 終了ページ
- 1121
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1099/ijsem.0.003888
A moderately thermophilic and heterotrophic bacterial strain, LAT, was isolated from microbial mats sampled at a hot spring in Nakabusa, Nagano, Japan. The cells of strain LAT were aerobic, Gram-stain-negative, non-sporulating, non-motile and rod-shaped (2.0-4.1 µm long). The formation of dense cell aggregates in liquid medium was a unique characteristic of the strain. Strain LAT grew optimally at 50°C and at pH 7.5. Phylogenetic analysis based on the 16S rRNA gene sequence revealed that the nearest neighbour of strain LAT was Schleiferia thermophila JCM 30197T with 94.1 % sequence similarity. The draft genome sequence of strain LAT (2 671 880 bp) showed 18.0 % digital DNA-DNA hybridization, 70.9 % average nucleotide identity and 72.1 % average amino acid identity (AAI) values in comparison with the genome sequence of S. thermophila JCM 30197T (2 606 763 bp); the 16S rRNA gene sequence similarity and AAI values are lower than the cutoffs used for assignment to a separate genus. On the basis of phenotypic features, major cellular fatty acid composition, genome sequencing and phylogenetic position, a novel genus and species are proposed for strain LAT, to be named Thermaurantimonas aggregans (= JCM 31826T=DSM 106522T).
- ID情報
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- DOI : 10.1099/ijsem.0.003888
- PubMed ID : 31778354