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- Flavobacterium jejuensis sp. nov., isolated from marine brown alga Ecklonia cava
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So-Hyun Park , Ji-Young Kim , Young-Ju Kim , Moon-Soo Heo
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J. Microbiol. 2015;53(11):756-761. Published online October 28, 2015
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DOI: https://doi.org/10.1007/s12275-015-5280-4
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Abstract
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A bacterial strain, designated EC11T was isolated from brown
alga Ecklonia cava collected from Jeju Island, Korea. EC11T
was identified as a Gram-negative, rod-shaped and yellowpigmented
bacterial strain. The strain EC11T grew over a
temperature range of 10°C to 30°C (optimally at 25°C), and
a pH range of 6.0–10.5 (optimally at pH 7.5). Phylogenetic
analysis based on 16S rRNA gene sequences showed that
strain EC11T belongs to the genus Flavobacterium. Strain
EC11T shared close similarity with Flavobacterium jumunjinense
HME7102T (96.4%), Flavobacterium dongtanense LW30T
(95.8%), Flavobacterium haoranii LQY-7T (95.3%), and
Flavobacterium urocaniciphilum (95.1%). The major fatty
acids (> 5%) were iso-C17:0 3-OH (22.4%), iso-C15:0 3-OH
(19.0%), C15:0 (12.4%), summed feature 3 (comprising C16:1
ω7c/ C16:1 ω6c; 9.78%), iso-C15:1 G (9.6%), and iso-C16:0 3-OH
(9.0%). The DNA G+C content was 28.1 mol% and the
strain contained MK-6 as the predominant menaquinone.
The major polar lipids were phosphatidylethanolamine,
two unknown aminolipids and three unknown polar lipids.
Based on phenotypic, chemotaxonomic and phylogenetic
analysis, strain EC11T represents a novel species of the Flavobacterium
genus, for which the name Flavobacterium jejuensis
sp. nov. is proposed. The type strain of F. jejuensis is EC11T
(=KCTC 42149T = JCM 30735T).
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