Cruoricaptor ignavus gen. nov., sp. nov., a novel bacterium of the family Flavobacteriaceae isolated from blood culture of a man with bacteraemia |
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| Authors: | AF Yassin TJJ Inglis H Hupfer C Siering P Schumann H-J Busse M Aravena-Román |
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| Institution: | 1. Institut für Medizinische Mikrobiologie und Immunologie der Universität Bonn, Sigmund-Freud-Straße 25, 53127 Bonn, Germany;2. School of Pathology and Laboratory Medicine, University of Western Australia, Division of Microbiology and Infectious Diseases, PathWest Laboratory Medicine, WA, Australia;3. Kekulé-Institut für Organische Chemie und Biochemie der Universität Bonn, 53121 Bonn, Germany;4. Institut für Organische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany;5. Leibniz Institut DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Inhoffenstrasse 7b, D-38124 Braunschweig, Germany;6. Institut für Bakteriologie, Mykologie und Hygiene, Veterinärmedizinische Universität Wien, A-1210 Wien, Austria;7. Division of Microbiology and Infectious Diseases, Laboratory Medicine of Western Australia (PathWest), QEII Medical Center, Locked Bag 2009, Nedlands 6909, Australia |
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| Abstract: | A Gram-reaction-negative bacterium, strain IMMIB L-12475T, was isolated from blood cultures of a human with septicaemia. The yellowish orange pigmented strain contained flexirubin pigment. Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain IMMIB L-12475T belonged to the family Flavobacteriaceae, forming a distinct phyletic line that is distantly related (79.1–89.4% sequence similarity) to described genera of this family. Membership to the family was confirmed by a fatty acid profile consisting of branched-chain and 3-hydroxy fatty acids with major amounts of iso-C17:0 3-OH and iso-C15:0, by the presence of menaquinone MK-6 as the only respiratory quinone and a polyamine pattern that contained sym-homospermidine as major component. The phospholipids consisted of phosphatidylethanolamine and an unknown phospholipid. The genomic DNA mol% G+C content was 45.6%. The distant phylogenetic position as compared to other representative of the family and the significant phenotypic properties such as pigment composition, morphology, and physiology support the proposal of a novel genus and species Cruoricaptor ignavus gen. nov., sp. nov. The type strain is IMMIB L-12475T (=DSM 25479T = CCUG 62025T). |
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