Dokdonia lutea sp. nov., isolated from Sargassum fulvellum seaweed

Int J Syst Evol Microbiol. 2017 Nov;67(11):4482-4486. doi: 10.1099/ijsem.0.002317. Epub 2017 Sep 21.

Abstract

A non-motile, yellow-coloured and rod-shaped bacterium, designated strain SFD34T, was isolated from seaweed collected from the South Sea, Republic of Korea. Cells were Gram-stain-negative, aerobic, catalase-positive and oxidase-negative. The major fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH and iso-C15 : 1 G. Strain SFD34T contained MK-6 and phosphatidylethanolamine as the only isoprenoid quinone and major polar lipid, respectively. The DNA G+C content was 35 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain SFD34T formed evolutionary lineage within the radiation enclosing the members of the genus Dokdonia with Dokdoniapacifica SW230T (96.86 % sequence similarity) as its nearest neighbour. A number of phenotypic characteristics distinguished strain SFD34T from related members of the genus Dokdonia. On the basis of the evidence presented in this study, a novel species, Dokdonia lutea sp. nov., is proposed for strain SFD34T (=KCTC 52269T=JCM 31795T).

Keywords: Dokdonia lutea; Sargassum fulvellum; South Sea.

MeSH terms

  • Bacterial Typing Techniques
  • Base Composition
  • DNA, Bacterial / genetics
  • Fatty Acids / chemistry
  • Flavobacteriaceae / classification*
  • Flavobacteriaceae / genetics
  • Flavobacteriaceae / isolation & purification
  • Phosphatidylethanolamines / chemistry
  • Phylogeny*
  • RNA, Ribosomal, 16S / genetics
  • Republic of Korea
  • Sargassum / microbiology*
  • Seaweed / microbiology
  • Sequence Analysis, DNA
  • Vitamin K 2 / analogs & derivatives
  • Vitamin K 2 / chemistry

Substances

  • DNA, Bacterial
  • Fatty Acids
  • Phosphatidylethanolamines
  • RNA, Ribosomal, 16S
  • Vitamin K 2
  • phosphatidylethanolamine
  • menaquinone 6