A Gram-negative, non-motile, rod-shaped bacterial strain, designated GS13T, was isolated from sediments in a branch of the Nackdong River in Sangju, Korea. Optimal growth occurred at pH 7.0, 20 °C, and 0% NaCl. Phylogenetic analyses using 16S rRNA showed that strain GS13T is a member of the genus Flavobacterium, with highest similarity to Flavobacterium soyangense IMCC26223T (97.0%). The DNA G+C content of strain GS13T was 36.2 mol%. The dominant fatty acids were summed feature 3 (C16:1ω7c and/or C16:1ω6c) and iso-C15:0. The major polar lipids were phosphatidylethanolamine, three unidentified aminolipids, three unidentified lipids, and one unidentified aminophospholipid. The predominant respiratory quinone was MK-6. Our data demonstrate that strain GS13T can be distinguished from closely-related Flavobacterium species. Thus, strain GS13T is a novel Flavobacterium species, and we propose the name Flavobacterium nackdongense sp. nov. The type strain is GS13T (=KCTC 62569T = JCM 32765T).
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We are grateful to Dr. Aharon Oren for his advice on naming this microorganism.
This work was supported by a grant from the Nakdonggang National Institute of Biological Resources (NNIBR), funded by the Ministry of Environment (MOE) of the Republic of Korea (NNIBR201901108).
Communicated by Erko Stackebrandt.
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The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene and genome sequences of strain GS13T are MH168565 and CP037933, respectively.
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Kim, H., Yu, S.M. Flavobacterium nackdongense sp. nov., a cellulose-degrading bacterium isolated from sediment. Arch Microbiol 202, 591–595 (2020). https://doi.org/10.1007/s00203-019-01770-5