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Williamsia soli sp. nov., an actinobacterium isolated from soil at a thermal power plant in Yantai, China

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Abstract

Strain C17T, a novel strain belonging to the phylum Actinobacteria, was isolated from a thermal power plant in Yantai, Shandong Province, China. Cells of strain C17T were Gram stain positive, aerobic, pink, non-motile and round with neat edges, showing optimum growth at 28 °C. Phylogenetically, strain C17T was a member of the class Actinobacteria, order Mycobacteriales, family Gordoniaceae. Phylogenetic analysis based on 16S rRNA gene sequence comparisons revealed that the related strains were Williamsia faeni JCM 17784 T and Williamsia limnetica KCTC 19981 T with pairwise sequence similarity of 98.5% for both strains. According to the draft genome sequence, the DNA G + C content was 64.7%. The average amino acid identity (AAI), average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between genome sequences of strain C17T and the closest type strain W. faeni JCM 17784 T were 77.5, 77.9, and 20.7%, respectively. Predominant fatty acids were C16:0 (31.7%) and C18:1ω9c (26.8%). The major menaquinone was MK-9. The diagnostic phospholipids were phosphatidylethanolamine (PE), diphosphatidylglycerol (DPG), and phosphatidylinositol (PI). Therefore, the combined phenotypic, chemotaxonomic and phylogenetic data indicated that strain C17T was considered to represent a novel species of the genus Williamsia. Williamsia soli sp. nov. was proposed for strain C17T (= KCTC 49567 T = MCCC 1K04355T).

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Acknowledgements

The authors thank the expert Aharon Oren for helping to view and modify the name of the new species.

Funding

This work was supported by the National Natural Science Foundation of China (31700116), the Natural Science Foundation of Shandong Province (ZR2017MC019), the China Postdoctoral Science Foundation (2017M62218), and the Key Science and Technology Program of Weihai (1070413421511).

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XHL and ZCL contributed to the sample collection and biochemical characterization. MJZ analyzed the data and drafted the manuscript. STY and LYP contributed to genome analyses. YXZ designed the experiments and revised the manuscript. All authors read and approved the final manuscript.

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Correspondence to Yan-Xia Zhou.

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The authors declare that there is no conflict of interest.

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Communicated by Erko Stackebrandt.

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Zhang, MJ., Li, XH., Peng, LY. et al. Williamsia soli sp. nov., an actinobacterium isolated from soil at a thermal power plant in Yantai, China. Arch Microbiol 204, 102 (2022). https://doi.org/10.1007/s00203-021-02714-8

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  • DOI: https://doi.org/10.1007/s00203-021-02714-8

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