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Pseudopontixanthobacter vadosimaris gen. nov., sp. nov., isolated from shallow sea near Kueishan Island


Sun, J and Guo, J and Lin, T-H and Feng, X and Zhang, R, Pseudopontixanthobacter vadosimaris gen. nov., sp. nov., isolated from shallow sea near Kueishan Island, International Journal of Systematic and Evolutionary Microbiology, 70, (12) pp. 6444-6449. ISSN 1466-5026 (2020) [Refereed Article]

Copyright Statement

Copyright 2020 The Authors

DOI: doi:10.1099/ijsem.0.004552


A Gram-stain-negative and aerobic bacterial strain, designated as JL3514T, was isolated from surface water of the hydrothermal system around Kueishan Island. The isolate formed red colonies and cells were non-flagellated, rod-shaped and contained methanol-soluble pigments. Growth was observed at 1050 C (optimum, 30 C), at pH 5.09.0 (optimum, pH 7.0) and in the presence of 09 % (w/v) NaCl (optimum, 2 %). Strain JL3514T was positive for catalase and weakly positive for oxidase. Results of 16S rRNA gene sequence analyses showed highest similarities to species in the family , namely (96.1 %), (96.0 %), (96.0 %) and (96.0 %). Phylogenetic analysis based on core gene sequences revealed that the isolate formed a distinct branch with the related species and it had a lower average amino acid identity value than the suggested threshold for genera boundaries. The major fatty acids (>5 %) were summed feature 8 (C 7 and/or C 6), summed feature 3 (C 7 and/or C 6), C, C 6, C 2-OH and C. The dominant polar lipids comprised diphosphatidylglycerol, sphingoglycolipid, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, glycolipid, two unidentified lipids and one unidentified phospholipid. The main respiratory quinones were ubiquinone-10 (95.7 %) and ubiquinone-9 (4.3 %). The DNA G+C content from the genome was 63.0 mol%. Based on the presented data, we consider strain JL3514T to represent a novel genus of the family , with the name gen. nov., sp. nov. The type strain is JL3514T (=KCTC 62623T=MCCC 1K03561T).

Item Details

Item Type:Refereed Article
Keywords:Kueishan Island, polyphasic taxonomy, Pseudopontixanthobacter
Research Division:Biological Sciences
Research Group:Evolutionary biology
Research Field:Animal systematics and taxonomy
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:Guo, J (Miss Jiaying Guo)
ID Code:143166
Year Published:2020
Web of Science® Times Cited:1
Deposited By:Ecology and Biodiversity
Deposited On:2021-03-03
Last Modified:2021-11-10

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