Factors affecting germination of Trichophyton mentagrophytes arthrospores

Factors affecting germination of Trichophyton mentagrophytes arthrospores.

Nutritional and environmental factors affecting germination of Trichophyton mentagrophytes arthrospores were investigated. Germination of dormant arthrospores occurred only in rich complex media such as Sabouraud dextrose broth or vitamin-free Casamino Acids. However, once activated, arthrospores were able to germinate under wide ranges of pH (5.5 to 8.0, optimal 6.5) and temperature (20 to 39 ...

Survival and resistance of Trichophyton mentagrophytes arthrospores.

The effects of several physical and chemical agents on the survival of Trichophyton mentagrophytes arthrospores were investigated. Although arthrospores of this dermatophyte were highly resistant to chilling and freezing, they were extremely susceptible to moderate heat (above 50 degrees C) and desiccation. This high susceptibility could be significantly reduced when they were dried in the pres...

Trichophyton mentagrophytes a keratinophilic fungus

Trichophyton mentagrophytes is a keratinophylic fungus belonging to a homogeneous group of fungi called the dermatophytes. The dermatophytes cause a variety of cutaneous infections in humans and animals. T. mentagrophytes has at least five different variants which make up the Trichophyton mentagrophytes complex. Two perfect states Arthroderma benhamiae and Arthroderma vanbreuseghemii have been ...

Differentiation of Trichophyton Rubrum and Trichophyton Mentagrophytes by Pigment Production.

Rosacea-like tinea incognito due to Trichophyton mentagrophytes vr. mentagrophytes.

Tinea incognito is a dermatophytosis with atypi-cal clinical manifestation in the absence of the typical " ringworm " (1). The term tinea incognito was originally used in 1968 by Ive and Marks in 14 patients with atypical dermatophytic infection caused by a previous steroid treatment (2). Since then, several cases of tinea incognito have been described after topical application of pimecrolimus ...