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Title of Journal: Arch Microbiol

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Abbravation: Archives of Microbiology

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Springer-Verlag

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DOI

10.1016/0377-0273(91)90007-m

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1432-072X

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Virulence determinants and biofilm production amon

Authors: Kelei Zhao Yongqiang Tian Bisong Yue Hongning Wang Xiuyue Zhang
Publish Date: 2013/01/25
Volume: 195, Issue: 3, Pages: 203-209
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Abstract

Trueperella pyogenes formerly Arcanobacterium is commonly isolated from domesticated or wild ruminants as an opportunistic pathogen To investigate the role of virulence determinants VDs and biofilm production in T pyogenes isolates a total of 36 T pyogenes were collected from abscesses of forest musk deer in Miyaluo Farm Sichuan Province China The prevalence of VDs and associations with clonal types antibiotic resistance and biofilm production were analyzed by PCR and bioassay Finally T pyogenes isolates were separated into three clonal types based on the DNA fingerprinting of BOXPCR Isolates with less VDs obtained from sick forest musk deer were mainly belonged to Type 1 and the isolates with robust VD repertoire obtained from dead forest musk deer were included in Type 3 Accordingly resistant isolates exhibited significant lower virulence than susceptible ones Majority of T pyogenes isolates of this study were capable of producing a biofilm However no VDs presence and antibiotic resistance were statistically associated with biofilm production In conclusion the current study demonstrated that T pyogenes was probably the primary pathogen of abscesses in the forest musk deer Moreover as an animal origin pathogen the increasing resistance of T pyogenes isolates could also associate with a decreased virulenceThis work was supported by the National Basic Research Program of China 973 Project 2012CB722207 and National Forestry Bureau of China 2130211 The authors would like to acknowledge Xuxin Li from Miyaluo Farm for collecting the samples We thank Kiswendsida Ouedeaogo and the anonymous reviewers for editing the manuscript

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