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Isolation, Propagation, and Identification of Bacterial Species with Hydrocarbon Metabolizing Properties from Aquatic Habitats
Published on: December 7, 2021
Devosia indica sp. nov., isolated from surface seawater in the Indian Ocean
Danqiu Lin1, Yizhe Huang1, Yong Chen1
1College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, PR China.
Abstract:
A Gram-stain-negative bacterium, designated IO390501T, was isolated from a sea water sample from the Indian Ocean and taxonomically characterized using a polyphasic approach. The strain is phylogenetically close to 'Devosia lucknowensis' L15 and Devosia chinhatensis IPL18T, with 16S rRNA gene sequence similarity of 97.7 and 97.4 %, respectively. The genome of IO390501T has a DNA G+C content of 61.9 mol% for the 3.9 Mb chromosome. Genome-based phylogenetic trees indicated that IO390501T clusters as an independent lineage with 'D. lucknowensis' L15. Genomic relatedness of in silico DNA-DNA hybridization between IO390501T and phylogenetic neighbours ranged from 18.8 to 21.5 %, below the cutoff of 70 %, and corresponding average nucleotide identity values were between 71.4 and 79.0 %, lower than the 95.0 % threshold. The predominant cellular fatty acids of IO390501T are summed feature 8 (C18 : 1ω7c/C18 : 1ω6c) and C16 : 0. IO390501T contains ubiquinone-10 as the sole respiratory quinone, and phosphatidylglycerol and glycolipids as the major polar lipids. On the basis of the results of phenotypic, chemotaxonomic and genetic analyses, strain IO390501T represents a novel species of the genus Devosia for which the name Devosia indica sp. nov. is proposed. The type strain is IO390501T.
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