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Abstract

A bacterial strain, designated KBP-30, was isolated from a water sample taken from the Banping Lake Wetland Park in Taiwan and characterized taxonomically using a polyphasic approach. Cells of strain KBP-30 were Gram-stain-negative, aerobic, motile by gliding rods that were covered by large capsules and formed red colonies. Growth occurred at 10–37 °C (optimum 20 °C), at pH 6–8 (optimum pH 6) and with 0–1 % NaCl (optimum 0 %). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain KBP-30 belonged to the genus and was most closely related to Myx 2105 with a sequence similarity of 97.7 %; 16S rRNA gene sequence similarities were less than 95.1 % with other members of the genus. Strain KBP-30 contained iso-C, summed feature 4 (iso-C I and/or anteiso-C B), anteiso-C, iso-C 3-OH and summed feature 3 (Cω7 and/or Cω6) as the predominant fatty acids. The major isoprenoid quinone was MK-7. The polar lipid profile consisted of phosphatidylethanolamine, three unidentified aminophospholipids, an unidentified aminolipid, an unidentified glycolipid and eight unidentified lipids. The major polyamine was homospermidine. The DNA G+C content of the genomic DNA was 60.3 mol%. The DNA–DNA relatedness of strain KBP-30 with respect to Myx 2105 was less than 42 %. On the basis of the phylogenetic inference and phenotypic data, strain KBP-30 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is KBP-30 ( = LMG 27293 = KCTC 32237).

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2016-03-01
2024-04-25
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