Parvibacter caecicola gen. nov., sp. nov., a bacterium of the family Coriobacteriaceae isolated from the caecum of a mouse

  • Thomas Clavel
    Biofunctionality Unit, ZIEL - Research Center for Nutrition and Food Sciences, TU München, Freising-Weihenstephan, Germany
  • Cédric Charrier
    NovaBiotics Ltd, Aberdeen, AB21 9TR, United Kingdom
  • Mareike Wenning
    Microbiology Unit, ZIEL - Research Center for Nutrition and Food Sciences, TU München, Freising-Weihenstephan, Germany
  • Dirk Haller
    Biofunctionality Unit, ZIEL - Research Center for Nutrition and Food Sciences, TU München, Freising-Weihenstephan, Germany

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Description

<jats:p>A single strain, NR06<jats:sup>T</jats:sup>, was isolated from the intestine of a TNF<jats:sup>deltaARE</jats:sup> mouse. Based on phylogenetic analysis of partial 16S rRNA gene sequences, strain NR06<jats:sup>T</jats:sup> belongs in the family <jats:named-content xmlns:xlink="http://www.w3.org/1999/xlink" content-type="family" xlink:type="simple"> <jats:ext-link ext-link-type="uri" xlink:href="http://dx.doi.org/10.1601/nm.5736" xlink:type="simple"> <jats:italic>Coriobacteriaceae</jats:italic> </jats:ext-link> </jats:named-content> within the <jats:named-content xmlns:xlink="http://www.w3.org/1999/xlink" content-type="class" xlink:type="simple"> <jats:ext-link ext-link-type="uri" xlink:href="http://dx.doi.org/10.1601/nm.5712" xlink:type="simple"> <jats:italic>Actinobacteria</jats:italic> </jats:ext-link> </jats:named-content>. The most closely related species with validly published names are members of the genera <jats:named-content xmlns:xlink="http://www.w3.org/1999/xlink" content-type="genus" xlink:type="simple"> <jats:ext-link ext-link-type="uri" xlink:href="http://dx.doi.org/10.1601/nm.13054" xlink:type="simple"> <jats:italic>Adlercreutzia</jats:italic> </jats:ext-link> </jats:named-content>, <jats:named-content xmlns:xlink="http://www.w3.org/1999/xlink" content-type="genus" xlink:type="simple"> <jats:ext-link ext-link-type="uri" xlink:href="http://dx.doi.org/10.1601/nm.13062" xlink:type="simple"> <jats:italic>Asaccharobacter</jats:italic> </jats:ext-link> </jats:named-content> and <jats:named-content xmlns:xlink="http://www.w3.org/1999/xlink" content-type="genus" xlink:type="simple"> <jats:ext-link ext-link-type="uri" xlink:href="http://dx.doi.org/10.1601/nm.14466" xlink:type="simple"> <jats:italic>Enterorhabdus</jats:italic> </jats:ext-link> </jats:named-content> (<96 % sequence similarity). Strain NR06<jats:sup>T</jats:sup> was characterized by a high prevalence of monomethylmenaquinone-6 (MMK-6; 76 %) and the presence of <jats:italic>meso</jats:italic>-diaminopimelic acid in the cell wall. One of the major cellular fatty acids of strain NR06<jats:sup>T</jats:sup> was C<jats:sub>15 : 0</jats:sub> ISO. Glucose was detected as a whole cell sugar. Strain NR06<jats:sup>T</jats:sup> was resistant to the antibiotic colistin and was positive for arginine and leucine arylamidase activity. Based on these characteristics, strain NR06<jats:sup>T</jats:sup> differed from related described bacteria. Therefore, the name <jats:italic>Parvibacter caecicola</jats:italic> gen. nov., sp. nov. is proposed to accommodate the novel bacterium. The type strain of the type species is NR06<jats:sup>T</jats:sup> ( = DSM 22242<jats:sup>T</jats:sup> = CCUG 57646<jats:sup>T</jats:sup>).</jats:p>

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