1. Novosphingobium aquaticum sp. nov., isolated from lake water in Suwon, Republic of Korea.
- Author
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Singh H, Du J, Yang JE, Yin C, Kook M, and Yi TH
- Subjects
- Aerobiosis, Bacterial Typing Techniques, Base Composition, Cluster Analysis, Cytosol chemistry, DNA, Bacterial chemistry, DNA, Bacterial genetics, DNA, Ribosomal chemistry, DNA, Ribosomal genetics, Fatty Acids analysis, Hydrogen-Ion Concentration, Korea, Locomotion, Molecular Sequence Data, Nucleic Acid Hybridization, Phospholipids analysis, Phylogeny, Quinones analysis, RNA, Ribosomal, 16S genetics, Republic of Korea, Sequence Analysis, DNA, Sodium Chloride metabolism, Sphingomonadaceae genetics, Sphingomonadaceae physiology, Temperature, Lakes microbiology, Sphingomonadaceae classification, Sphingomonadaceae isolation & purification
- Abstract
A novel Gram-stain negative, yellow coloured, strictly aerobic, rod-shaped, non-motile bacterium designated as THW-SA1(T), was isolated from lake water near Samsung apartment, Suwon, Republic of Korea. The phylogenetic analysis based on 16S rRNA gene sequences showed that strain THW-SA1(T) belongs to the genus Novosphingobium and is closely related to Novosphingobium taihuense (97.8 %) and Novosphingobium subterraneum (97.1 %). The DNA-DNA relatedness values between strain THW-SA1(T) and the most closely related type strains were found to be less than 30.0 %. The DNA G+C content was determined to be 67.5 mol%. The strain grows optimally at 25-28 °C, at pH 7.0, and in the presence of 0.5 % NaCl. The predominant isoprenoid quinone was identified as ubiquinone Q-10. The polar lipid profile comprises diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidyldimethylethanolamine, sphingoglycolipid, phosphatidylcholine, some unidentified phospholipids and some unidentified polar lipids. Fatty acids characteristic for this genus, such as C16:1, C14:0 2-OH, C16:1 ω6c and/or C16:1 ω7c (summed feature 3) and C18:1 ω6c and/or C18:1 ω7c (summed feature 8) were also detected. On the basis of the phenotypic and genotypic analysis, the strain THW-SA1(T) is considered to represent a novel species of the genus Novosphingobium, for which the name Novosphingobium aquaticum sp. nov. is proposed. The type strain is THW-SA1(T) (=KCTC 42608(T)=CCTCC AB 2015114(T)).
- Published
- 2015
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