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Altomare L, Rodriguez AG, Brigidi P, Matteuzzi D: Nucleotide sequence, expression and transcriptional analysis Fluorometholone Acetate of the Bifidobacterium longum MB219 lacZ gene. AZD5582 Arch Microbiol 2000, 174:74–80.PubMedCrossRef 33. Zhu L, Li W, Dong X: Species identification of genus Bifidobacterium based on partial HSP60 gene sequences and proposal of Bifidobacterium thermacidophilum subsp porcinum subsp nov. Int J Syst Evol Microbiol 2003, 53:1619–1623.PubMedCrossRef Competing interests The authors declare that they have no competing interests. Authors’ contributions LB conceived the study. LB, VS and ES carried out all the bioinformatics, RFLP analyses, DNA extractions and culture handling. VS conceived the dichotomous key. MM and PM provided some of the strains tested together with the Nutlin-3a purchase extracted DNA. DDG and FG supervised the work. LB, VS, DDG and FG contributed to paper writing. All authors read and approved the final manuscript. BB supported the research.”
“Background Extended-spectrum β-lactamases (ESBLs) are among the most important resistance determinants spreading worldwide in Enterobacteriaceae [1, 2]. During the 1980s, ESBLs evolved from TEM and SHV broad-spectrum-β-lactamases, frequently associated to Klebsiella pneumoniae involved in nosocomial outbreaks. Over the last decade, CTX-M-type ESBLs have increased dramatically, and become the most prevalent ESBLs worldwide, frequently associated to Escherichia coli.

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