Rheinheimera maricola sp. nov., isolated from seawater of the Yellow Sea

Author:

Kim Kyung Hyun1ORCID,Baek Ju Hye1,Wenting Ruan1,Jeon Che Ok1ORCID

Affiliation:

1. Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea

Abstract

A Gram-negative and facultative aerobic strain, designated as strain MA-13T, was isolated from seawater in the Yellow Sea Republic of Korea. Cells were oxidase- and catalase-positive and non-motile short rods. Growth of strain MA-13T was observed over a range of 10–37 °C (optimum, 30 °C), pH 6.0–11.0 (optimum, pH 7.0) and in the presence of 0–5.5 % (w/v) sodium chloride (optimum, 1.0–2.0 %). Strain MA-13T contained ubiquinone-8 as the respiratory quinone, phosphatidylethanolamine, an unidentified aminolipid, an unidentified phospholipid and four unidentified lipids as major polar lipids and C16 : 0, C12 : 0 3-OH and summed feature 3 (C16 : 1  ω7c and/or C16 : 1  ω6c) as major cellular fatty acids. The G+C content of the genomic DNA was 48.3 mol%. Phylogenetic analyses based on the 16S rRNA gene and whole-genome sequences revealed that strain MA-13T formed a distinct phyletic lineage in the genus Rheinheimera . Strain MA-13T was most closely related to Rheinheimera lutimaris YQF-2T, Rheinheimera aquimaris SW-353T, Rheinheimera pacifica KMM 1406T and Rheinheimera baltica DSM 14885T with 98.10, 98.08, 98.07 and 97.94 % 16S rRNA gene sequence similarities. Average nucleotide identity and DNA–DNA hybridization values between strain MA-13T and R. aquimaris KCTC 12840T, R. pacifica DSM 17616T and R. baltica DSM 14885T were 76.3, 78.6 and 76.9 % and 19.5, 21.3 and 20.5 %, respectively. Based on the phenotypic, chemotaxonomic and molecular features, strain MA-13T represents a novel species of the genus Rheinheimera , for which the name Rheinheimera maricola sp. nov. is proposed. The type strain is MA-13T (=KACC 22113T=JCM 34600T).

Funder

Ocean Science & Technology

National Institute of Biological Resources

Publisher

Microbiology Society

Subject

General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology

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1. Rheinheimera oceanensis sp. nov., a novel member of the genus Rheinheimera, isolated from the West Pacific Ocean;International Journal of Systematic and Evolutionary Microbiology;2023-10-20

2. Psychroserpens ponticola sp. nov. and Marinomonas maritima sp. nov., isolated from seawater;International Journal of Systematic and Evolutionary Microbiology;2023-10-13

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