Idiomarina atlantica sp. nov., a marine bacterium isolated from the deep sea sediment of the North Atlantic Ocean

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• 作者：Juan Du ; Qiliang Lai ; Yang Liu ; Yaping Du ; Xiupian Liu…
• 关键词：Idiomarina atlantica sp. nov. ; Deep sea sediment ; Taxonomy ; Atlantic Ocean
• 刊名：Antonie van Leeuwenhoek
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：107
• 期：2
• 页码：393-401
• 全文大小：290 KB
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• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Microbiology
  Medical Microbiology
  Plant Sciences
  Soil Science and Conservation
  
• 出版者：Springer Netherlands
• ISSN：1572-9699

文摘

An aerobic Gram-negative, slightly curved rod-shaped and non-motile bacterium, designated G5_TVMV8_7T, was isolated from the deep sea sediment sample of the North Atlantic Ocean. Strain G5_TVMV8_7T displayed growth at 4-5?°C (optimum, 25-5?°C), at pH 6.0-1.0 (optimum, 7.0-.0) and in 1.0-5.0?% (w/v) NaCl (optimum, 3.0-.0?%). Phylogenetic analysis based on the 16S rRNA gene sequences indicated that strain G5_TVMV8_7T belongs to the genus Idiomarina, sharing the highest similarity with Idiomarina salinarum ISL-52T (97.4?%) and I. homiensis PO-M2T (97.1?%) followed by other validly described species of the genus Idiomarina (96.9-3.5?%). The G?+?C content of the genomic DNA was found to be 50.2?mol?%. The digital DNA–DNA hybridization value between strain G5_TVMV8_7T and I. salinarum ISL-52T was 17.70?±?2.24?%. The average nucleotide identity values between strain G5_TVMV8_7T and I. salinarum ISL-52T was found to be 70.03?%. The major fatty acids were C16:0 (12.7?%), iso-C15:0 (11.5?%) and Sum In Feature 8 (C18:1 ω7c/ω6c) (13.5?%). The predominant respiratory quinone was identified as Q-8, and the polar lipids as diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol including several unidentified polar lipids. Based on the genotypic and phenotypic results, a new species Idiomarina atlantica is proposed. The type strain is G5_TVMV8_7T (=?MCCC 1A10513T?=?KCTC 42141T).