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Aureibaculum marinum gen. nov., sp. nov., a Novel Bacterium of the Family Flavobacteriaceae Isolated from the Bohai Gulf

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Abstract

A novel Gram-stain-negative bacterium, designated strain BH-SD17T, was isolated from a marine sediment sample in the Bohai Gulf, Yellow Sea, China. Cells of strain BH-SD17T are aerobic, yellow-colored, non-flagellated rods. Growth occurs between 15 and 40 °C (optimum, 30 °C), at pH 6.0–8.5 (optimum, 7.5) and with 1.0–8.0% (w/v) NaCl (optimum, 3.0%). Strain BH-SD17T contains phosphatidylethanolamine and two unidentified lipids as the major polar lipids. The predominant fatty acids are iso-C15:0 (28.5%), iso-C15:1 G (24.4%), and iso-C17:0 3-OH (12.3%). The major respiratory quinone is MK-6. Strain BH-SD17T shows moderate 16S rRNA gene sequence similarity to existing identified strains, is most closely related to the genera Lutimonas (92.1–92.4%), Lutibacter (91.6–92.3%), and Taeania (91.9%). Phylogenetic trees based on 16S rRNA gene sequences show that strain BH-SD17T forms a distinct lineage within the family Flavobacteriaceae. Based on the results of phenotypic, chemotaxonomic and phylogenetic analysis, strain BH-SD17T is considered to represent a novel genus and species in the family Flavobacteriaceae, for which the name Aureibaculum marinum is proposed. The type strain is BH-SD17T (=CCTCC AB 2017072T=KCTC 62204T).

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Acknowledgements

We sincerely thank Prof. Aharon Oren in Hebrew University of Jerusalem for advice on nomenclature. This work was supported by the National Natural Science Foundation of China (81702054, 81672044, 81501718) and Natural Science Foundation of Shandong Province (ZR2017BC011).

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Author notes

  1. Huilin Zhao, Yulong Wu and Cong Zhang contributed equally to the paper.

Authors and Affiliations

  1. Department of Pathogenic Biology, School of Basic Medical Sciences, Binzhou Medical University, Yantai, China

    Huilin Zhao, Yulong Wu, Zheng Xu, Yunfei Ding, Boqing Li & Xiaofei Ji

  2. Shandong Province Key Laboratory of Applied Mycology, School of Life Science, Qingdao Agricultural University, Qingdao, China

    Cong Zhang

  3. Department of Biology, College of Science, Shantou University, Shantou, China

    Jiarong Feng

  4. School of Pharmacy, Binzhou Medical University, Yantai, China

    Yaxin Gao & Yu Geng

  5. School of Clinical Medicine, Binzhou Medical University, Yantai, China

    Jie Song

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  1. Huilin Zhao
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Correspondence to Boqing Li or Xiaofei Ji.

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Zhao, H., Wu, Y., Zhang, C. et al. Aureibaculum marinum gen. nov., sp. nov., a Novel Bacterium of the Family Flavobacteriaceae Isolated from the Bohai Gulf. Curr Microbiol 76, 975–981 (2019). https://doi.org/10.1007/s00284-019-01691-y

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