A Gram-stain-negative, yellow-pigmented, aerobic bacterial strain, designated LPB0140T, was isolated from sea water. The 16S rRNA gene sequence similarity analysis demonstrated that the closest relative of the isolate is Sphingorhabdus contaminans (96.4 %), but the new isolate formed an independent phyletic line within the genus Sphingorhabdus. Its genome is composed of a circular chromosome of 2.53 Mb with DNA G+C content of 46.1 mol%. The genome includes 2359 protein-coding genes, and two copies of rRNA operons. Strain LPB0140T possessed C14: 0 2-OH, C16: 1!7c and/or C16: 1 !6c, and C18: 1 !7c and/or C18: 1!6c as the major cellular fatty acids and Q-10 as the isoprenoid quinone. The major polar lipids were phosphatidylethanolamine, phosphatidylcholine, phosphatidylglycerol, diphosphatidylglycerol, and sphingoglycolipid, but phosphatidylmonomethylethanolamine and phosphatidyldimethylethanolamine were also detected as minor polar lipids. The chemotaxonomic properties and enzymatic activities of the novel isolate clearly differed from those of its closest relatives. Thus, based on the phylogenetic and phenotypic data presented in this study, strain LPB0140T should be classified as a novel species in the genus Sphingorhabdus. The type strain is LPB0140T (=KACC18891T =JCM31568T ).
|Number of pages||6|
|Journal||International Journal of Systematic and Evolutionary Microbiology|
|Publication status||Published - 2019|
Bibliographical noteFunding Information:
Author affiliations: 1Department of Public Health Sciences, Graduate School, Korea University, Seoul, Republic of Korea; 2Institute for Biomaterials, Korea University, Seoul, Republic of Korea; 3School of Biosystem, and Biomedical Science, Korea University, Seoul, Republic of Korea. *Correspondence: Hana Yi, email@example.com Keywords: Sphingorhabdus lutea; Sphingorhabdus; sphingolipid. Abbreviations: AL, unidentified aminolipid; DPG, diphosphatidylglycerol; GL, unidentified glycolipid; L, unidentified lipid; PC, phosphatidylcholine; PDME, phosphatidyldimethylethanolamine; PE, phosphatidylethanolamine; PG, phosphatidylglycerol; PL, unidentified phospholipid; PMME, phosphati-dylmonomethylethanolamine; SGL, sphingoglycolipid. The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequence and the complete genome sequence of Sphingorhabdus lutea LPB0140T are KX066860 and CP018154, respectively. Four supplementary figures are available with the online version of this article.
This study was funded by the Survey of Korean Indigenous Species Program through the National Institute of Biological Resources funded by the Korean Ministry of Environment and the Basic Science Research Programs through the National Research Foundation of Korea (NRF) funded by the Korean Ministry of Education (2015R1D1A1A01057527).
© 2019, Microbiology Society. All rights reserved.
- Sphingorhabdus lutea
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics