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Information Journal Paper

Title

SURVEY OF ACCESSORY GENE REGULATOR (AGR) GROUPS AND TSST-1 ENCODING GENE (TST) IN STAPHYLOCOCCUS AUREUS ISOLATED FROM EWES WITH MASTITIS IN THE NORTHWEST OF IRAN

Pages

  334-340

Abstract

 Accessory gene regulator (agr locus) is a global regulator of many virulence gene expressions in STAPHYLOCOCCUS AUREUS. Four interference classes related to genetic polymorphisms in the agr locus have so far been described. In the present study, theagr locus specificity groups were studied within a total of 43 S. aureusisolates which were isolated from ewes with mastitis in three regions in the Northwest of IRAN. In addition, the isolates were examined for the presence of TSST-1 (toxic shock syndrome toxin-1) encoding gene (tst) using PCR. Identification of AGR GROUPS, using agr group-specific multiplex PCR, classified the majority of isolates into group I (51.16%) and to a lesser extent intoagr group IV (44.19%). Only one isolate (2.23%) for each of theagr groups II and III was found. This study also indicated that 44.19% of isolates (n=19) possessed thetst gene and that 94.74% (n=18) belonged to agr group I. According to the results, certainagr groups comprised the great majority of SHEEP MASTITIS associated S. aureus isolates. Moreover, the high proportion of S. aureus isolates was tst positive, indicating an issue requiring consideration as it is relevant to food hygiene. The results also showed a variation in distribution of thetst gene among the differentagr groups.

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    APA: Copy

    DASTMALCHI SAEI, H., AGHDASI, S., & MOHAMMAD ZADEH, H.. (2013). SURVEY OF ACCESSORY GENE REGULATOR (AGR) GROUPS AND TSST-1 ENCODING GENE (TST) IN STAPHYLOCOCCUS AUREUS ISOLATED FROM EWES WITH MASTITIS IN THE NORTHWEST OF IRAN. IRANIAN JOURNAL OF VETERINARY RESEARCH (IJVR), 14(4 (45)), 334-340. SID. https://sid.ir/paper/674181/en

    Vancouver: Copy

    DASTMALCHI SAEI H., AGHDASI S., MOHAMMAD ZADEH H.. SURVEY OF ACCESSORY GENE REGULATOR (AGR) GROUPS AND TSST-1 ENCODING GENE (TST) IN STAPHYLOCOCCUS AUREUS ISOLATED FROM EWES WITH MASTITIS IN THE NORTHWEST OF IRAN. IRANIAN JOURNAL OF VETERINARY RESEARCH (IJVR)[Internet]. 2013;14(4 (45)):334-340. Available from: https://sid.ir/paper/674181/en

    IEEE: Copy

    H. DASTMALCHI SAEI, S. AGHDASI, and H. MOHAMMAD ZADEH, “SURVEY OF ACCESSORY GENE REGULATOR (AGR) GROUPS AND TSST-1 ENCODING GENE (TST) IN STAPHYLOCOCCUS AUREUS ISOLATED FROM EWES WITH MASTITIS IN THE NORTHWEST OF IRAN,” IRANIAN JOURNAL OF VETERINARY RESEARCH (IJVR), vol. 14, no. 4 (45), pp. 334–340, 2013, [Online]. Available: https://sid.ir/paper/674181/en

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