Marinifilum fragile gen. nov., sp. nov., isolated from tidal flat sediment.
- Marinifilum fragile gen. nov., sp. nov., isolated from tidal flat sediment.
- 나현수; 김세일; 문은영; 천종식
- 16S; Marinifilum fragile; 16S rRNA; tidal flat
- Issue Date
- International journal of systematic and evolutionary microbiology
- VOL 59, NO 9, 2241-2246
- A facultatively anaerobic, moderately halophilic, Gram-negative, filamentous bacterium,
designated JC2469T, was isolated from tidal flat sediment in Korea. Phylogenetic analysis based
on 16S rRNA gene sequences showed that the isolate belonged to the phylum Bacteroidetes and
its closest taxonomic relative was Cytophaga fermentans NCIMB 2218T (89.6% sequence
similarity). Cells appeared as filaments during exponential growth, but became fragmented to rods
at stationary phase. Spherical cells were also observed in aged cultures. Strain JC2469T
contained iso-C15 : 0 (56.2 %) and MK-7 as the predominant fatty acid and respiratory quinone,
respectively. On the basis of evidence from this polyphasic study, the isolate showed substantial
differences from other genera. The phylogenetic and physiological data of the present study
strongly suggest that the isolate represents a novel genus and species, for which the name
Marinifilum fragile gen. nov., sp. nov. is proposed. The type strain of Marinifilum fragile is JC2469T
(=IMSNU 14138T =KCTC 22488T =JCM 15579T).
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