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Flagellimonas algicola sp. nov., Isolated from a Marine Red Alga, Asparagopsis taxiformis

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Abstract

A Gram-stain-negative, strictly aerobic and moderately halophilic bacterium, designated strain AsT0115T, was isolated from a red marine alga, Asparagopsis taxiformis. Cells were non-motile rods showing oxidase-positive and catalase-negative activities. Growth was observed at 15–37 C (optimum, 25 C) and pH 6.5–7.5 (optimum, pH 7.0) and in the presence of 0–11.0% (w/v) NaCl (optimum, 2.0–3.0%). Strain AsT0115T contained iso-C15:0 and iso-C15:1 G as the predominant fatty acids. Menaquinone-6 was identified as the sole isoprenoid quinone. Major polar lipids consisted of phosphatidylethanolamine, an identified aminolipid and three unidentified polar lipids. The G+C content of the genomic DNA calculated from the whole genome sequence was 41.7 mol%. Strain AsT0115T was most closely related to Flagellimonas pacifica sw169T and Flagellimonas flava DSM 22638T with 96.5% and 95.6% 16S rRNA gene sequence similarities, respectively. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain AsT0115T formed a phyletic lineage with F. pacifica sw169T within the genus Flagellimonas. Phenotypic, chemotaxonomic, and phylogenetic features clearly suggested that strain AsT0115T represents a novel species of the genus Flagellimonas, for which the name Flagellimonas algicola sp. nov. is proposed. The type strain is AsT0115T (= KACC 19790T = JCM 32942T).

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Acknowledgements

This work was supported by the Program for Collection of Domestic Biological Resources of the National Institute of Biological Resources (NIBR201902203) of the Ministry of Environment (MOE) and Future Planning and the Strategic Initiative for Microbiomes in the Ministry of Agriculture, Food, and Rural Affairs (as part of the multi-ministerial) Genome Technology to Business Translation Program, Republic of Korea.

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  1. Department of Life Science, Chung-Ang University, 84, HeukSeok-Ro, Dongjak-Gu, Seoul, 06974, Republic of Korea

    Jungeun Kim, Kyung Hyun Kim, Byung Hee Chun, Shehzad Abid Khan & Che Ok Jeon

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  1. Jungeun Kim
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  2. Kyung Hyun Kim
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Correspondence to Che Ok Jeon.

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The GenBank accession numbers for the 16S rRNA gene and genome sequences of strain S-16T are MK391377 and VCNI00000000, respectively.

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Kim, J., Kim, K.H., Chun, B.H. et al. Flagellimonas algicola sp. nov., Isolated from a Marine Red Alga, Asparagopsis taxiformis. Curr Microbiol 77, 294–299 (2020). https://doi.org/10.1007/s00284-019-01821-6

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