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Lactobacilli are believed to contribute to the control of the vaginal microflora by different mechanisms such as production of antagonistic substances like lactic acid, bacteriocins, and H 2 O 2 . This paper describes the selection of H 2 O 2 -generating lactobacilli among 35 hydrophobic isolates...
An isogenic pair of Yersinia enterocolitica serotype O9 strains, with and without virulence plasmid, was used to study the plasmid role in the infection of BALB/c mice by oral, intraperitoneal, and intravenous routes. The plasmid-bearing strain, but not its plasmid-less derivative, caused enteric...
The wild-type ERG19 gene of the yeast Saccharomyces cerevisiae encoding mevalonate diphosphate decarboxylase (MVD) and the mutated recessive erg19-34 allele leading to a decrease of sterol production and to a thermosensitive phenotype have been characterized (2). The mutated erg19-34 allele bears...