| Title | Flavobacterium jejuensis sp. nov., isolated from marine brown alga Ecklonia cava |
|---|---|
| Author | So-Hyun Park1, Ji-Young Kim2,3, Young-Ju Kim3*, and Moon-Soo Heo1* |
| Address | 1Department of Aquatic Life Medicine, College of Ocean Science, Jeju National University, Jeju 690-756, Republic of Korea, 2Research Institute for Basic Science, Jeju National University, Jeju 690-756, Republic of Korea, 3Jeju Biological Resource Co., Ltd, CTC Business Incubator, Jeju Tourism College, Jeju 690-756, Republic of Korea |
| Bibliography | Journal of Microbiology, 53(11),756-761, 2015, |
| DOI | 10.1007/s12275-015-5280-4 |
| Key Words | brown alga, Ecklonia cava, Flavobacterium, 16S rRNA gene |
| Abstract | 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). |