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Occurrence of keratinolytic fungi and related dermatophytes in soils in Cairo, Egypt. 1992

Y A Youssef, and A A el-Din, and S M Hassanein
Department of Botany, Faculty of Science, University of Ain Shams, Cairo, Egypt.

120 soil samples collected from various sites of Cairo were processed for the isolation of keratinophilic fungi by "ToKaVa" hair baiting technique. 22 species belonging to 6 genera were isolated viz.: Chrysosporium tropicum, C. indicum, C. keratinophilum, C. queenslandicum, C. merdarium, C. anamorph of Arthroderma curreyi, C. pannicola, C. lobatum, C. anamorph of Renispora flavissima, C. pseudomerdarium, Microascus mangini, Malbranchea gypsea, Ml. State of Uncicarpus reesii, Ml. State of Coccidioides immitis, Microsporum gypseum, Mr. distortum Mr. audouinii, Mr. fulvum, Trichophyton mentagrophytes, T. terrestre, T. verrucosum and Epidermophyton floccosum. The frequency of occurrence of the isolated fungi was determined. Microsporum gypseum, Chrysosporium tropicum and Chrysosporium indicum were the most frequent species recovered from soil. Most species of keratinophilic fungi were isolated from university, public garden and zoo garden. The distribution of the isolates are discussed.

UI MeSH Term Description Entries
D007633 Keratins A class of fibrous proteins or scleroproteins that represents the principal constituent of EPIDERMIS; HAIR; NAILS; horny tissues, and the organic matrix of tooth ENAMEL. Two major conformational groups have been characterized, alpha-keratin, whose peptide backbone forms a coiled-coil alpha helical structure consisting of TYPE I KERATIN and a TYPE II KERATIN, and beta-keratin, whose backbone forms a zigzag or pleated sheet structure. alpha-Keratins have been classified into at least 20 subtypes. In addition multiple isoforms of subtypes have been found which may be due to GENE DUPLICATION. Cytokeratin,Keratin Associated Protein,Keratin,Keratin-Associated Proteins,alpha-Keratin,Associated Protein, Keratin,Keratin Associated Proteins,Protein, Keratin Associated,alpha Keratin
D008864 Microsporum A mitosporic Oxygenales fungal genus causing various diseases of the skin and hair. The species Microsporum canis produces TINEA CAPITIS and tinea corporis, which usually are acquired from domestic cats and dogs. Teleomorphs includes Arthroderma (Nannizzia). (Alexopoulos et al., Introductory Mycology, 4th edition, p305) Microsporon,Microsporons,Microsporums
D002912 Chrysosporium A mitosporic Onygenaceae fungal genus which causes adiaspiromycosis, a pulmonary mycosis of man and rodents. One of its teleomorphs is Ajellomyces. Emmonsia,Chrysosporiums,Emmonsias
D003045 Coccidioides A mitosporic fungal genus which causes COCCIDIOIDOMYCOSIS. Coccidioides immitis
D003883 Arthrodermataceae A family of ascomycetous fungi, order Onygenales, characterized by smooth ascospores. Genera in the family include Arthroderma, Keratinomyces, and Ctenomyces. Several well-known anamorphic forms are parasitic upon the skin. Arthroderma,Ctenomyces,Dermatophytes,Keratinomyces,Cutaneous Fungi,Cutaneous Fungus,Dermatomyces,Nannizzia,Arthrodermas,Ctenomyce,Dermatomyce,Dermatophyte,Fungi, Cutaneous,Fungus, Cutaneous,Keratinomyce,Nannizzias
D004821 Epidermophyton A fungal genus which grows in the epidermis and is the cause of TINEA. Epidermophytons
D005658 Fungi A kingdom of eukaryotic, heterotrophic organisms that live parasitically as saprobes, including MUSHROOMS; YEASTS; smuts, molds, etc. They reproduce either sexually or asexually, and have life cycles that range from simple to complex. Filamentous fungi, commonly known as molds, refer to those that grow as multicellular colonies. Fungi, Filamentous,Molds,Filamentous Fungi,Filamentous Fungus,Fungus,Fungus, Filamentous,Mold
D012988 Soil Microbiology The presence of bacteria, viruses, and fungi in the soil. This term is not restricted to pathogenic organisms. Microbiology, Soil
D014249 Trichophyton A mitosporic fungal genus and an anamorphic form of Arthroderma. Various species attack the skin, nails, and hair. Endodermophyton,Trychophyton,Endodermophytons,Trichophytons,Trychophytons

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