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2015 | 18 | 2 |

Tytuł artykułu

Clustering of Staphylococcus aureus bovine mastitis strains from regions of Central-Eastern Poland based on their biochemical and genetic characteristics

Treść / Zawartość

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Staphylococcus aureus strains were isolated from mastitic milk of cows with infected mammary glands. The animals were living in 12 different farms near Lublin, in Central-Eastern Poland. A biochemical identification method based on enzymatic assay was performed, followed by haemolytic and proteolytic tests. PCR-RFLP targeted on the gap gene allowed the genetic identification of strains at the species level and verified phenotypic identification results. A molecular typing method using triplex PCR was performed to recognize the genetic similarity of the analyzed strains. DNA microar-ray hybridization (StaphyType, Alere Technologies) was used for detection of antibiotic resistance and virulence associated markers. The results obtained indicate high genetic similarity in strains isolated from the same sites. High genetic similarities were also detected between strains isolated from cows from different farms of the same region. A slightly lower similarity was noted however, in strains from various regions indicating that the strains are herd specific and that the cow's infections caused by S. aureus were of a clonal character. In 21 representative isolates selected for DNA-microarray testing, only fosfomycin (fosB) and penicillin resistance markers (blaZ, blaI, blaR) were detected. The presence of genes coding for haemolysins (lukF, lukS, hlgA, hla, hld, hlb), proteases (aur, sspA, sspB, sspP), enterotoxins (entA, entD, entG, entI, entJ, entM, entN, entO, entR entU, egc-cluster), adhesins (icaA, icaC, icaD, bbp, clfA, clfB, fib, fnbA, map, vwb) or immune evasion proteins (scn, chp, sak) was common and, with exceptions, matched triplex PCR-defined clusters.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

18

Numer

2

Opis fizyczny

p.333-342,fig.,ref.

Twórcy

autor
  • National Chamber of Medical Laboratory Specialists, Warsaw, Poland
  • Faculty of Biochemistry, Biophysics and Biotechnology, Center, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland
autor
  • Faculty of Biochemistry, Biophysics and Biotechnology, Center, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland
autor
  • Faculty of Biochemistry, Biophysics and Biotechnology, Center, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland
autor
  • Faculty of Biochemistry, Biophysics and Biotechnology, Center, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland
  • Faculty of Biochemistry, Biophysics and Biotechnology, Center, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland
autor
  • Faculty of Biochemistry, Biophysics and Biotechnology, Center, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland
autor
  • Center of Microbiology Research and Autovaccines, Krakow, Poland
  • Center of Microbiology Research and Autovaccines, Krakow, Poland
autor
  • Faculty of Biology and Animal Breeding, University of Life Sciences, Lublin, Poland
autor
  • Faculty of Biology and Animal Breeding, University of Life Sciences, Lublin, Poland
autor
  • School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
  • Faculty of Biochemistry, Biophysics and Biotechnology, Center, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland

Bibliografia

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Typ dokumentu

Bibliografia

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