In vitro virulence evaluation of clinical and environmental isolates of dermatophyte fungi

Dermatophytes are keratinophilic fungi and the causative agent of dermatophytosis in animals people. In pathogenesis this disease, enzymes such as DNase, gelatinase, lipase, keratinase, elastase, collagenase highlighted. This work aimed to verify production these by clinical environmental isolates dermatophytes. Environmental strains were obtained Vanbreuseghem technique (1952), using soil samples from different Brazilian locations. The animal hair crust sent Veterinary Microbiological Diagnostic Service/UFRRJ. enzymatic evaluation dermatophytes was made spectrophotometer absorbance readings (collagenase, keratinase), degradation halo formation Petri dishes (DNase lipase) tube liquefaction (gelatinase). Microsporum canis (11), Nannizzia gypsea (7), N. nana (2), Trichophyton mentagrophytes (4) sp. (6). (25), (1) (4). There no statistically significant difference lipase gelatinase between groups. a DNase production. It is concluded that both capable producing related dermatophyte infection.