Schönecker, Lutz; Schnydrig, Philipp; Brodard, Isabelle; Thomann, Andreas; Hemphill, Andrew; Rodriguez-Campos, Sabrina; Perreten, Vincent; Jores, Joerg; Kittl, Sonja (2021). Trueperella pecoris sp. nov. isolated from bovine and porcine specimens. International journal of systematic and evolutionary microbiology, 71(6) Society for General Microbiology SGM 10.1099/ijsem.0.004848
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A novel Gram-stain-positive bacterium was isolated from a purulent bovine milk sample, the bovine placenta from an abortion, the udder secretion of a heifer and the lung of a pig that had succumbed from suppurative bronchopneumonia in Switzerland from 2015 to 2019. The strains grew best under aerobic conditions with 5 % CO2 and colonies were non-haemolytic and greyish-white. They were non-motile and negative for catalase and oxidase. The genomes of the four strains 19M2397T, 15A0121, 15IMD0307 and 19OD0592 were obtained by sequencing. The results of phylogenetic analyses based on the 16S rRNA gene grouped them within the genus Trueperella in the family Arcanobacteriaceae. The genomes had DNA G+C contents of 61.2-62.2 mol% and showed digital DNA-DNA hybridization (dDDH) values of 21.4-22.8 % and average nucleotide identity (ANI) values of approximately 77 % to their closest relatives Trueperella pyogenes and Trueperella bernardiae. With respect to the presence in different livestock species we propose the name Trueperella pecoris sp. nov. The type strain is 19M2397T (=CCOS 1952T=DSM 111392T), isolated from the udder secretion of a heifer diagnosed with summer mastitis in 2019.
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