1887

Abstract

A Gram-stain-negative, aerobic, rod-shaped and motile bacterium, designated M23, was isolated from a laboratory culture of a bloom-forming cyanobacterium, Microcystis , which was isolated from a eutrophic lake in Korea. The strain grew optimally without NaCl and at 25–30 °C on R2A agar medium. Phylogenetic analysis based on 16S rRNA gene sequences positioned the novel strain among the genus Silanimonas , with the highest similarity to Silanimonas lenta DSM 16282 (98.5 %). DNA–DNA relatedness between strain M23 and the closely related species in the genus Silanimonas was <30 %. Strain M23 contained iso-C15 : 0, summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c) and iso-C16 : 0 as major fatty acids and ubiquinone-8 (Q-8) as the major quinone. Strain M23 contained diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylmethylethanolamine as major polar lipids. The DNA G+C content of strain M23 was 69.6 mol%. On the basis of the genotypic, chemotaxonomic and phenotypic data, strain M23 represents a novel species in the genus Silanimonas , for which the name Silanimonas algicola sp. nov. is proposed. The type strain is M23 (=KCTC 52219=JCM 31889)

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2017-08-31
2019-10-18
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