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
Subject
General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology
Cited by
7 articles.
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