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Lack of association between genotypes and virulence factors in C. albicans strains isolated from vaginal secretion BJM
Shinobu,Cristiane Suemi; Ogatta,Sueli Fumie Yamada; Bizerra,Fenando; Furlaneto,Luciana; Peralta,Rosane Marina; Svidzinski,Terezinha Inez Estivalet; Consolaro,Marcia Edilaine Lopes.
The physiopathogenesis of vulvovaginal candidiasis (VVC) is still not completely elucidated. The objective of this study was to evaluate if there is a relationship between the different genotypes of Candida albicans, their main agent and the virulence of this yeast in vaginal isolates, and to check if there are laboratorial markers that can predict the ability of each isolate to develop VVC independently of symptoms. The production of exoenzymes protease, phospholipase and haemolysin, resistance to hydrogen peroxide, and the genotype were determined. Genotype A was predominant (75%), protease, phospholipase and haemolytic activity were highly expressed, and the majority of the yeasts were sensitive to H2O2 in 1 and 2 hours of exposure, suggesting that...
Tipo: Info:eu-repo/semantics/article Palavras-chave: C. albicans; Vulvovaginal candidiasis; Genotype; Virulence factors.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300015
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Survival and conjugal transfer between Bacillus thuringiensis strains in aquatic environment BJM
Furlaneto,Luciana; Saridakis,Halha Ostrensky; Arantes,Olívia Márcia Nagy.
Field and laboratory studies were conducted to assess the survival of cells and spores and plasmid transfer between Bacillus thuringienis strains in aquatic environment. Results indicated that cells and spores of B. thuringiensis can survive for 10 days in water, without altering their number. The sporulation process began after 12-15 hours of inoculation of water. B. thuringiensis was able to transfer conjugative plasmids in the aquatic environment.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacillus thuringiensis; Conjugation; Microbial ecology.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000400001
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