A survey of soil inhabiting dermatophytes and related keratinophilic fungi of India
- 1 January 1965
- journal article
- Published by Oxford University Press (OUP) in Medical Mycology
- Vol. 4 (2), 71-79
- https://doi.org/10.1080/00362176685190201
Abstract
The first comprehensive survey of soil-inhabiting dermatophytes and related keratinophilic fungi of India is reported. Of the 485 soil samples examined by hair baiting 45.9% yielded keratinophilic fungi. Among the species isolated were Keratinophyton terreum (32.3%), Microsporum gypseum (11.7%) and one of its cleistocarpic states, Nannizzia incurvata, Ctenomyces serratus (2.4%), Trichophyton evolceanui (2.0%), Keratinomyces ajelloi (1.2%), Chrysosporium tropicum (0.6%) and Microsporum cookei (0.2%). Mixed growth was noted in 14% of the soil samples. In general keratinophilic fungi were met with in a great variety of soil sources. However, soils from shady and moist sites rich in organic or keratin matter or both appeared to be more suitable than others. Saline soils, barren roadside soils, dry river sand and beach sand proved to be poor sources of keratinophilic fungi. On présente la première revue des dermatophytes et champignons kératinophiles apparentés, vivant dans le sol aux Indes. De 485 échantillons de sols étudiés avec la technique du piège de kératine, 45,9% se sont montrés contenir des champignons kératinophiles. Parmi les espèces isolées, on a rencontré Keratinophyton terraum (32,3%), Microsporum gypseum (11,7%), et une avec la forme parfaite Nannizzia incurvata, Ctenomyces serratus (2,4%), Trichophyton evolceanui (2,0%), Keratinomyces ajelloi (1,2%), Chrysosporium tropicum (0,6%) et Microsporum cookei (0,2%). Des cultures mixtes ont été obtenues pour 14% des échantillons. De façon générale, les champignons kératinophiles ont été rencontrés dans le sol de stations très variées mais les sites ombreux et humides, riches en matières organiques et en kératine sont plus favorables que les autres. Des sols salés, les sols de bords de routes, les sables de rivières asséchées ou de plages ne fournissent que peu de champignons kératinophiles.Keywords
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