Bergeyella porcorum sp. nov., isolated from pigs

Four Gram-stain-negative, catalase- and oxidase-positive, bacillus-shaped bacterial isolates were recovered from the lungs and tonsils of four pigs. Based on cellular morphology and biochemical criteria the isolates were tentatively assigned to the genus Bergeyella, although the organisms did not appear to correspond with Bergeyella zoohelcum, the only validly named species of this genus. 16S rRNA gene sequencing demonstrated that isolates represented a distinct subline within the genus Bergeyella with <97%. 16S rRNA gene sequence similarity with B. zoohelcum ATCC 43767T. The predominant cellular fatty acids of strain 1350-03T were iso-C15:0 and iso-C17:0 3-OH and the major quinone was MK-6. The DNA G+C content of strain 1350-03T was 37.7 mol%. The novel isolates can be phenotypically distinguished from B. zoohelcum based on physiological traits. On the basis of both phenotypic and phylogenetic findings, we describe a new species of the genus Bergeyella for which we propose the name of Bergeyella porcorum sp. nov. (1350-03T=CCUG 67887T=CECT 9006T).