Cloning of chromosomal β-lactamase genes from Yersinia enterocolitica
نویسندگان
چکیده
منابع مشابه
Molecular Analysis of β-Lactamase Genes to Understand their Differential Expression in Strains of Yersinia enterocolitica Biotype 1A
Beta-lactams are used as major therapeutic agents against a number of infectious agents. Due to widespread use of β-lactams, β-lactamases have evolved at a rapid pace leading to treatment failures. Yersinia enterocolitica causes many gastrointestinal problems. It is an extremely heterogeneous species comprising more than fifty serotypes and six biotypes which differ in their ecological niches, ...
متن کاملStructural Variabilities in β-Lactamase (blaA) of Different Biovars of Yersinia enterocolitica: Implications for β-Lactam Antibiotic and β-Lactamase Inhibitor Susceptibilities
Yersiniosis caused by Yersinia enterocolitica has been reported from all continents. The bacterial species is divided into more than fifty serovars and six biovars viz. 1A, 1B, 2, 3, 4 and 5 which differ in geographical distribution, ecological niches and pathogenicity. Most Y.enterocolitica strains harbor chromosomal genes for two β-lactamases, blaA an Ambler class A penicillinase and blaB an ...
متن کاملYersinia enterocolitica.
Characteristics of the disease Infectious dose is 10–100 organisms Incubation period is 1⁄2–4 (usually 1–3) days; up to a week for S. dysenteriae 1 Illness: diarrhea with fever and nausea; sometimes toxemia, vomiting, cramps, and tenesmus; dysentery—blood and mucus in stools; may cause hemolytic uremic syndrome; most severe in infants; mild and asymptomatic infections occur Duration: 4–7 days; ...
متن کاملDirect isolation of Yersinia enterocolitica and Yersinia pseudotuberculosis from meat.
Studies were done to determine the usefulness of dilute alkali (KOH) treatment of meat samples for direct isolation of Yersinia enterocolitica and Yersinia pseudotuberculosis, without enrichment. Virulent Y. enterocolitica and Y. pseudotuberculosis in pork contaminated with 10(2), 10(3), and 10(4) cells per g survived the direct KOH treatment and were never recovered by using KOH postenrichment...
متن کاملIsolation of Yersinia enterocolitica from swine.
Data pertaining to 20 strains of Yensinia enterocolitica isolated from the cecal content of swine slaughtered at Toronto Abattoirs are presented. Fifteen of 20 cultures belonged to the two predominant human serotypes in Ontario (i.e., serotype O:3 and O:5,27.) Seven cultures of Y. enterocolitica O:3 belonged to the "Canadian" human phage type 9b. These findings are further proof that swine are ...
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ژورنال
عنوان ژورنال: Microbiology
سال: 1991
ISSN: 1350-0872,1465-2080
DOI: 10.1099/00221287-137-1-141