Rheinheimera gaetbuli sp. nov., a Marine Bacterium Isolated from a Tidal Flat

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• 作者：Kyunghwa Baek ; Che Ok Jeon
• 刊名：Current Microbiology
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：72
• 期：3
• 页码：344-350
• 全文大小：603 KB
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• 作者单位：Kyunghwa Baek (1) (2)
  Che Ok Jeon (1)
  
  1. Department of Life Science, Chung-Ang University, Seoul, 06974, Republic of Korea
  2. National Marine Biodiversity Institute of Korea, Seocheon, Chungchungnam-do, 33662, Republic of Korea
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Microbiology
  Biotechnology
  
• 出版者：Springer New York
• ISSN：1432-0991

文摘

A gram-staining-negative, strictly aerobic, rod-shaped, and motile bacterium with a single polar flagellum, designated H26T, was isolated from tidal flat sediment in Jeju Island, South Korea. Growth of strain H26T was observed at 4–35 °C (optimum, 20–25 °C), pH 6.0–9.0 (optimum, pH 7.0–8.0), and 1–4 % NaCl (optimum, 2–3 %). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain H26T formed a phyletic lineage within the genus Rheinheimera, family Chromatiaceae. Strain H26T was most closely related to Rheinheimera baltica OSBAC1T, Rheinheimera aestuarii H29T, Rheinheimera muenzenbergensis E49T, and Rheinheimera aquimaris SW-353T with 98.5, 98.1, 97.8, and 97.5 % of 16S rRNA gene sequence similarities, respectively. The DNA–DNA relatedness levels between strain H26T and the type strains of R. baltica, R. aestuarii, R. muenzenbergensis, and R. aquimaris were 35.5 ± 3.2, 33.4 ± 1.5, 31.2 ± 2.2, and 28.7 ± 0.9 %, respectively. The major fatty acids of strain H26T were iso-C_15:0 3-OH, summed feature 3 (comprising C_16:1 ω7c/C_16:1 ω6c), C_16:0, summed feature 8 (comprising C_18:1 ω7c/C_18:1 ω6c), iso-C_17:0 3-OH, and C_12:0 3-OH and the strain contained ubiquinone (Q-8) as the sole isoprenoid quinone. Phosphatidylethanolamine, phosphatidylglycerol, and an aminolipid were identified as the major polar lipids and the G + C content of the genomic DNA was 52.0 mol%. Based on the phenotypic, chemotaxonomic, and molecular properties, strain H26T represents a novel species of the genus Rheinheimera, for which the name Rheinheimera gaetbuli sp. nov. is proposed. The type strain was H26T (=KACC 18254T = JCM 30403T). The GenBank accession number for the 16S rRNA gene sequence of strain H26T is KM588221.Electronic supplementary materialThe online version of this article (doi:10.​1007/​s00284-015-0956-x) contains supplementary material, which is available to authorized users.