Survival and resistance of Trichophyton mentagrophytes arthrospores

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...

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 ...

Differentiation of Trichophyton Rubrum and Trichophyton Mentagrophytes by Pigment Production.

Glycolytic and respiratory enzymes of Trichophyton mentagrophytes.

Although the dermatophytes are common fungal pathogens, very little is known concerning their metabolic systems. Biochemical studies with this group have been limited primarily to the nutritional requirements (Robbins et al., 1942; Schopfer and Blumer, 1943; Robbins and Ma, 1945; Georg, 1950; Benham, 1953; Silva, 1953; and Silva and Benham, 1954) and the demonstration of various extracellular e...

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 ...