Abstract
A novel strain KS-M25T was isolated from estuary water in South Korea. Strain KS-M25T was Gram-staining-negative, strictly aerobic, motile rods-shaped bacterium and showed oxidase- and catalase-positive reactions. Growth of strain KS-M25T was observed at 10–25 °C (optimum, 20 °C), at pH 5.5–9.0 (optimum, pH 7.5), and with 0–6.0% (w/v) NaCl (optimum, 1%). Ubiquinone-8 was identified as the sole isoprenoid quinone and the major fatty acids were C16:0, cyclo–C17:0 and sum in feature 3 (comprising C16:1 ω7c and/or C16:1 ω6c). The G+C content values based on genome sequences was 62.3 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain KS-M25T formed a clear cluster within the genus Achromobacter. Strain KS-M25T was most closely related to Achromobacter anxifer LMG 26857T, Achromobacter dolens LMG 26840T, and Achromobacter xylosoxidans NBRC 15126T with 97.8%, 97.8%, and 97.7% 16S rRNA gene sequence similarities, respectively. Based on phenotypic, chemotaxonomic, and phylogenetic analysis, strain KS-M25T represents a novel species of the genes Achromobacter, for which the name Achromobacter aestuarii sp. nov. is proposed. The type strain is KS-M25T (= KACC 21219T = JCM 33329T).
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Acknowledgements
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2017R1C1B5077091) and the National Institute of Fisheries Science (NIFS, R2020051).
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SCK isolated the type strain from an estuary and performed the experiments. SOC analyzed the genome. HJL supervised all works and wrote the manuscript. The manuscript has been reviewed and edited by all authors.
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Kim, S.C., Chung, S.O. & Lee, H.J. Achromobacter aestuarii sp. nov., Isolated from an Estuary. Curr Microbiol 78, 411–416 (2021). https://doi.org/10.1007/s00284-020-02231-9
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DOI: https://doi.org/10.1007/s00284-020-02231-9