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首页> 外文期刊>Turkish Journal of Veterinary and Animal Sciences >Prevalence of blaZ gene and other virulence genes in penicillin-resistant Staphylococcus aureus isolated from bovine mastitis cases in Gansu, China
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Prevalence of blaZ gene and other virulence genes in penicillin-resistant Staphylococcus aureus isolated from bovine mastitis cases in Gansu, China

机译：甘肃牛乳腺炎分离株耐药青霉素金黄色葡萄球菌blaZ基因及其他毒力基因的流行

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摘要

Staphylococcus aureus is a major etiological agent of bovine mastitis worldwide. In this study, 37 strains of S. aureus resistant to penicillin were isolated from bovine mastitis cases in Gansu Province for investigating blaZ and virulence-related genes, including tst, eta, etb, lukPV, lukED, lukM, hla, hlb, hid, and edin. Antibiotic resistance was based on disk diffusion method and blaZ and virulence-associated genes were studied by polymerase chain reaction. Penicillin resistance gene blaZ was detected in 35/37 (94.6%) of penicillin-resistant S. aureus isolates. tst, lukPV, lukED, hla, hlb, and hid were observed in 5.4%, 2.7%, 89.2%, 70.3%, 73.0%, and 70.3% of the penicillin-resistant isolates, respectively, while eta, etb, lukM, and edin were not detected in any isolates. blaZ carried by penicillin-resistant S. aureus isolates may be the main reason for phenotypic penicillin resistance. Virulence determinants encoded by lukED, hla, hlb, and hld genes may play important roles in bovine mastitis pathogenesis of penicillin-resistant S. aureus in Gansu Province.
机译：金黄色葡萄球菌是全世界牛乳腺炎的主要病原体。在这项研究中，从甘肃省的牛乳腺炎病例中分离出了37株对青霉素耐药的金黄色葡萄球菌，用于研究blaZ和毒力相关基因，包括tst，eta，etb，lukPV，lukED，lukM，hla，hlb，hid和爱丁。抗生素抗性是基于圆盘扩散法，并通过聚合酶链反应研究了blaZ和毒力相关基因。在35/37（94.6％）的耐青霉素金黄色葡萄球菌菌株中检​​测到青霉素抗性基因blaZ。 tst，lukPV，lukED，hla，hlb和hid分别在抗青霉素菌株中分别占5.4％，2.7％，89.2％，70.3％，73.0％和70.3％，而eta，etb，lukM和在任何分离物中均未检测到爱丁。抗青霉素金黄色葡萄球菌携带的blaZ可能是表型青霉素耐药的主要原因。 lukED，hla，hlb和hld基因编码的毒力决定簇可能在甘肃省耐青霉素的金黄色葡萄球菌的牛乳腺炎发病机理中发挥重要作用。

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