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Bacillus abyssalis sp. nov., isolated from a sediment of the South China Sea |
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| Authors: | Zhi-Qing You Jie Li Sheng Qin Xin-Peng Tian Fa-Zuo Wang Si Zhang Wen-Jun Li |
| Affiliation: | 1. Key Laboratory of Marine Bio-resources Sustainable Utilization CAS, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou, 510301, People’s Republic of China 2. Graduate University of CAS, Beijing, 100049, People’s Republic of China 3. Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, Jiangsu Normal University, Xuzhou, People’s Republic of China 4. Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education and Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, People’s Republic of China |
| Abstract: | A Gram-positive bacterium, designated SCSIO 15042T, was isolated from a sediment of the South China Sea and was subjected to a polyphasic taxonomic study. The isolate grew at 20–60 °C, pH 6.0–10.0 and it could grow with up to 10 % (w/v) NaCl. The cell-wall diamino acid was found to be meso-diaminopimelic acid. Polar lipids were found to be diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine and an unknown polar lipid. The only menaquinone was determined to be MK-7. The major fatty acids were identified as C16:1 ω7c/C16:1 ω6c, C16:0, iso-C15:0, anteiso-C15:0, and iso-C16:0. The DNA G+C content of strain SCSIO 15042T was determined to be 43.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences affiliated strain SCSIO 15042T to the genus Bacillus. Levels of 16S rRNA gene sequence similarities between strain SCSIO 15042T and Bacillus herbersteinensis D-1-5aT, Bacillus infantis SMC 4352-1T, Bacillus novalis LMG 21837T and Bacillus drentensis LMG 21831T were 96.2, 96.2, 96.1 and 96.1 %, respectively. Based on the evidence of the present polyphasic study, strain SCSIO 15042T is considered to represent a novel species of the genus Bacillus, for which the name Bacillus abyssalis sp. nov. is proposed. The type strain is SCSIO 15042T (=DSM 25875T = CCTCC AB 2012074T = NBRC 109102T). |
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