Aurantibacter crassamenti gen. nov., sp. nov., a bacterium isolated from marine sediment
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ORIGINAL PAPER
Aurantibacter crassamenti gen. nov., sp. nov., a bacterium isolated from marine sediment Jaewoo Yoon1 · Hiroaki Kasai2
Received: 20 April 2016 / Revised: 26 July 2016 / Accepted: 16 August 2016 / Published online: 23 August 2016 © Springer-Verlag Berlin Heidelberg 2016
Abstract A Gram-stain-negative, strictly aerobic, orangecolored, rod-shaped, chemoheterotrophic bacterium, designated HG732T, was isolated from marine sediment in Japan. Phylogenetic analysis based on the 16S rRNA gene sequence indicated that the novel marine strain was affiliated with the family Flavobacteriaceae of the phylum Bacteroidetes and that it shared the highest (94.1 %) sequence similarity with Kriegella aquimaris KMM 3665T. The strain could be differentiated phenotypically from related members of the family Flavobacteriaceae. Major fatty acids of strain HG732T were iso-C15:1 G, iso-C15:0 and iso-C17:0 3-OH. The polar lipid profile consisted of phosphatidylglycerol, three unidentidied aminolipids and two unidentified lipids. The DNA G+C content of the strain was determined to be 35.2 mol%, and the major respiratory quinone was identified as menaquinone 6 (MK-6). From the distinct phylogenetic position and combination of genotypic and phenotypic characteristics, the strain is considered to represent a novel genus in the family
Communicated by Erko Stackebrandt. Electronic supplementary material The online version of this article (doi:10.1007/s00203-016-1280-y) contains supplementary material, which is available to authorized users. * Jaewoo Yoon [email protected] 1
College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo‑Gu, Daegu 42601, Republic of Korea
2
Marine Biosciences Kamaishi Research Laboratory, Kitasato University, 160‑4, Utou, Okirai, Sanriku‑cho, Ofunato, Iwate 022‑0101, Japan
Flavobacteriaceae, for which the name Aurantibacter crassamenti gen. nov., sp. nov. is proposed. The type strain of A. crassamenti gen. nov., sp. nov. is HG732T (= KCTC 52207T = NBRC 112211T). Keywords Flavobacteriaceae · Aurantibacter crassamenti gen. nov., sp. nov. · Marine sediment · 16S rRNA gene · Polyphasic taxonomy
Introduction The family Flavobacteriaceae within the phylum Bacteroidetes (Garrity and Holt 2001; Ludwig and Klenk 2001) was first established by Jooste (1985), and the name was validly published in 1992 (Reichenbach 1992). Owing to their heterogeneous and complex phylogenetic positions, the description of the family Flavobacteriaceae has been emended repeatedly (Reichenbach 1992; Bernardet et al. 1996, 2002). This phylogenetic group constitutes a significant proportion of marine microbiota (DeLong et al. 1993; Glöckner et al. 1999; Abell and Bowman 2005), and they make an important contribution to the decomposition of bioorganic matters and carbon cycle processes in the marine environments (Cottrell and Kirchman 2000; Kirchman 2002; Abell and Bowman 2005). Most members of the Flavobacteriaceae are non-pathogens, but some are known as opportunistic or true pathogens on human (Bernardet and Bowma
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