Draconibacterium filum sp. nov., a new species of the genus of Draconibacterium from sediment of the east coast of the Korean Peninsula

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Title
Draconibacterium filum sp. nov., a new species of the genus of Draconibacterium from sediment of the east coast of the Korean Peninsula
Author(s)
J H Gwak; S J Kim; M Y Jung; J G Kim; S W Roh; K J Yim; Yong Jae LeeSong-Gun Kim; S J Park; S K Rhee
Bibliographic Citation
Antonie Van Leeuwenhoek International Journal of General and Molecular Microbiology, vol. 107, no. 4, pp. 1049-1056
Publication Year
2015
Abstract
A Gram-stain negative, long rod shaped, facultatively anaerobic bacterium, designated strain F2T, was isolated from coastal sediment of the Korean Peninsula. Strain F2T was found to grow at 10-40 °C (optimum 30 °C), at pH 6.0-8.5 (optimum pH 7.5) and at 0.0-8.0 % (w/v) NaCl (optimum 3.0 %). Phylogenetic analysis of the 16S rRNA gene sequence showed that strain F2T is closely related to Draconibacterium orientale FH5T (with 97.9 % 16S rRNA gene similarity) of the family Prolixibacteraceae of the phylum Bacteroidetes. The major isoprenoid quinone was identified as MK-7 and the main fatty acids as iso-C15:0 (24.1 %), anteiso-C15:0 (15.4 %), C16:0 (10.7 %), iso-C17:0 3-OH (7.6 %) and iso-C16:0 3-OH (5.9 %). The major polar lipids were identified as phosphatidylethanolamine, phosphatidylinositol and four unidentified polar lipids. The genomic DNA G+C content of strain F2T was determined to be 44.7 mol% and the DNA-DNA relatedness of strain F2T with D. orientale DSM 25947T was 34.6 ± 4.3 %. Nitrate reduction capability and cell morphology of strain F2T are distinct from those of the closest relative, D. orientale DSM 25947T. Based on these properties, we propose strain F2T represents a novel species within the genus Draconibacterium, with the name Draconibacterium filum sp. nov. The type strain of D. filum is F2T (=KCTC 32486T = JCM 19986T).
Keyword
Coastal sedimentDraconibacterium filumPolyphasic taxonomyProlixibacteraceae
ISSN
0003-6072
Publisher
Springer
DOI
http://dx.doi.org/10.1007/s10482-015-0396-4
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
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