title: Searching for Beta-Haemolysin hlb Gene in Staphylococcus pseudintermedius with Species-Specific Primers.
abstract: The paper presents an analysis of 51 Staphylococcus pseudintermedius clinically isolated strains from humans and from animals. Staphylococcus pseudintermedius strains' ability to produce β-haemolysin was evaluated with phenotypic methods (hot-cold effect, reverse CAMP test). In order to determine the hlb gene presence (coding for β-haemolysin) in a genomic DNA, PCR reactions were conducted with two different pairs of primers: one described in the literature for Staphylococcus aureus and recommended for analysing SIG group staphylococci and newly designed one in CLC Main Workbench software. Only reactions with newly designed primers resulted in product amplification, the presence of which was fully compatible with the results of phenotypic β-haemolysin test. Negative results for S. aureus and S. intermedius reference ATCC strains suggest that after further analysis the fragment of hlb gene amplified with primers described in this study might be included in the process of S. pseudintermedius strains identification.
authors.affiliation: Department of Pharmaceutical Microbiology and Microbiological Diagnostics, Medical University of Łódź, 137 Pomorska St., 90-235, Lodz, Poland.
authors.forename: Wioletta
authors.initials: W
authors.lastname: Kmieciak
authors.affiliation: Department of Pharmaceutical Microbiology and Microbiological Diagnostics, Medical University of Łódź, 137 Pomorska St., 90-235, Lodz, Poland.
authors.forename: Eligia M
authors.initials: EM
authors.lastname: Szewczyk
authors.affiliation: Department of Pharmaceutical Microbiology and Microbiological Diagnostics, Medical University of Łódź, 137 Pomorska St., 90-235, Lodz, Poland. marcin.ciszewski@umed.lodz.pl.
authors.forename: Marcin
authors.initials: M
authors.lastname: Ciszewski
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics* / Q000378:metabolism; D017931:DNA Primers / Q000235:genetics*; D006460:Hemolysin Proteins / Q000235:genetics* / Q000378:metabolism; D006801:Humans; D016133:Polymerase Chain Reaction; D013045:Species Specificity; D013203:Staphylococcal Infections / Q000382:microbiology; D013210:Staphylococcus / Q000235:genetics* / Q000302:isolation & purification / Q000378:metabolism
chemical_list: D001426:Bacterial Proteins; D017931:DNA Primers; D006460:Hemolysin Proteins