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Abstract

The genus Roseivirga currently includes five species: Roseivirga ehrenbergii , R. echinicomitans , R. spongicola , R. marina and R. maritima . Marinicola seohaensis SW-152 was renamed as Roseivirga seohaensis SW-152 and then reclassified again as a later heterotypic synonym of R. ehrenbergii KMM 6017. In this study, based on average nucleotide identity and digital DNA–DNA hybridization values obtained from in silico methods, together with fatty acid analyses and biochemical tests, we propose to reclassify R. ehrenbergii SW-152 as Roseivirga seohaensis comb. nov. (type strain SW-152=KCTC 1231=JCM 12600). In this work, a Gram-negative, rod-shaped, aerobic and pink-pigmented strain designated as D-25 was isolated from seawater (Desaru Beach, Johor, Malaysia). The 16S rRNA gene analysis revealed that strain D-25 was related to the genus Roseivirga . Strain D-25 was found most closely related to R. seohaensis SW-152 based on average nucleotide identity and digital DNA–DNA hybridization values, phenotypic and chemotaxonomic analyses, indicating that these strains belong to the same species. Thus, it is proposed to split the species R.oseivirga seohaensis into two novel subspecies, Roseivirga seohaensis subsp. seohaensis subsp. nov. (type strain SW-152=KCTC 12312=JCM 12600) and Roseivirga seohaensis subsp. aquiponti subsp. nov. (type strain D-25=KCTC 42709=DSM 101709) and to emend the description of the genus Roseivirga .

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2016-12-01
2019-10-22
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