Keratinophilic Fungi: Nature’s Keratin Degrading Machines! Their Isolation, Identification and Ecological Role. Rahul Sharma is presently working on his PhD on. Keratinophilic fungi are ecologically an important group of fungi which could be found in soil . Some groups of these fungi are causative. Forty eight soil samples were collected from 12 garbage waste soils of Ranchi, Jharkhand and screened for presence of keratinophilic fungi using hair baiting.
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The mycobiota of hair and nail samples collected from 4 different governorates in upper Egypt were estimated using soil plate method for isolating keratinophilic and dermatophytic fungi. Twenty-three fungi were recorded on both hair and nail samples collected from the four governorates. Highest fungal diversity 20 was collected from Red Sea samples followed by Qena 18 and Aswan 17 while lowest fungal diversity was recorded from Sohage samples. The most prevalent species belonging to these genera were: The keratinophilic fungi are of prime importance in regard to various skin diseases prevalent in various areas.
These fungi are able to utilize keratin, a fibrous protein, as sole carbon and nitrogen source and survive saprophytically in nature English, Many keratinophilic fungi frequently parasitize keratinous tissue, viz. Some of them share certain morphological features, constituting aspecial group called dermatophytes Gugnani, The impact of keratinophilic fungi on human health seems unexplored part of various studies Shukia et al.
Dermatophytes and other keratinophilic fungi have been isolated from various keratinized part of body in animals and human Abdel-Hafez, ; Nicholis and Midgley, ; Ali-Shtayeh et al. Various keratinophilic fungi along with some dermatophytes are responsible for various skin infections, little epidemiological data on the fungal disease of skin in human is available Shukia et al.
Knowledge of the frequency and extension of etiological agents of humans and animal mycosis and other potentially pathogenic fungi on the healthy hairs and nails of humans is of prime importance for understanding of epidemiological cycle of these fungi Otcenasek, ; Lee et al. The present work is aimed at evaluating the biodiversity of keratinophilic fungi in Upper Egypt among male and female students of South Valley University at Aswan, Qena, Sohage and Red Sea Governorates.
For the collection, 20 samples from each governorate and 10 samples sex were chosen at random. The soil plate technique Bagy et al. Ten hair fragments 5 fragments from each plates or ten nails 5 nails from each plates were transferred to the surface of Sabouraud’s dextrose agar medium SDA Moss and McQuown, supplemented with antibiotics e. After incubation isolates were cultured on SDA for identification on the basis of their colonial and morphological characters using monographic descriptions and other available literature Fungk, ; Van Oorschot, ; Spiewak, ; Kushwala, Thirteen population were recorded on 80 hair samples collected from four governorates.
The highest fungal 11 was fungu from Red Sea samples followed by Aswan 10 and Kerarinophilic 9 while lowest, 8 was recorded from Sohage samples.
It was represented by 2 species and 1 unidentified species of which A. Other keratinophilic fungal species 4 genera were also isolated, of which Aspergillus was isolated in high frequency of occurrence. It was represented by 3 species and 1 variety, of which A. It was represented by 2 species, it were P. Twenty-one species and one variety belonging to 12 genera were recovered from male and female students’ nails from Aswan, Qena, Sohage and Fnugi Sea governorates. Dungi was represented by A.
Chysosporium ranked second in frequency of occurrence which represented by 2 species of which C. It was represented by 6 species and 1 variety of which A. Penicillium ranked keratinpohilic among the most common from the other keratinophilic fungi genera. It was represented by 3 species of which P.
Gibberella represented by G. The remaining genera were recovered, but with low frequencies of occurrence from male and female students’ nails and these were; Candida C. Thirteen fungi were collected from male and female students’ hairs.
BioMed Research International
Aphanoascus was the most common genus from male and female students’ hairs. Chrysosporium keratinophiliumA. This species has of world-wide distribution El-Said, ; Ulfig et al. Maghraby found M. These fungi were isolated previously from hairs of large mammals or feathers of poultry and human Aho, ; Abdel-Hafez,; Ali-Shtayeh, ; Alghalibi, Twenty-one fungi belonging to 12 genera were recovered from male and female students’ nails.
Dermatophytes and related fungi were represented by 5 genera of which Aphanoascus was the most frequent genus. Previously, these species were isolated with different incidences, from students’ nails Abdel-Hafez and El-Sharouny, ; Abdel-Raouf,chicken and pigeon claws Abdel-Hafez, Chrysosporium ranked second in frequency, it was represented C. Microsporium gypseum were encountered through our study, those species were previously isolated by Katiyar and Kushwaha and Efuntoye and Fashanu Several saprobic and cycloheximide resistant fungi such as AlternariaAspergillusCandidaGibberellaMucorPaecilomyces and Penicillium were recovered from students’ nails.
These species were isolated previously, but with different frequency, from students’ nails Abdel-Hafez and El-Sharounycloven-hooves and horns of goats and sheep Abdel-Hafez et al. In conclusion, highest fungal diversity 20 species was recorded from Red sea samples followed by Qena 18 and Aswan 17 while the lowest fungal diversity 16 was recorded from Sohage samples. Red sea governorates is coastal city with high humidity level while Qena and Aswan have higher temperature range than Sohage governorate.
Diversity of Keratinophilic Fungi on Human Hairs and Nails at Four Governorates in Upper Egypt
Keratiophilic is well known that high temperature and humidity are favored for fungal growth. High number of fungal species was recorded from nail samples compare to those recorded from hair samples at the four governorates and this is in agreement with the previous studies. National Center for Biotechnology InformationU. Journal List Mycobiology v. Published online Dec GherbawyThanaa A. MaghrabyHassan M.
A PRELIMINARY STUDY ON THE OCCURRENCE OF KERATINOPHILIC FUNGI IN SOILS OF JAMAICA
El-Sharonyand Mohmaed A. Find articles by Youssuf A. Find articles by Thanaa A. Find articles by Hassan M. Find articles by Mohmaed A. Author information Article notes Copyright and License information Disclaimer. Received Sep 1. Keraginophilic The mycobiota of hair and nail samples collected from 4 different governorates in upper Egypt were estimated using soil plate method for isolating keratinophilic and dermatophytic fungi. AphanoascusChrysosporiumdermatophytes. Sample analysis The soil plate technique Bagy et al.
Results Keratinophilic fungi recovered from students’ hairs Thirteen population were recorded on keratinophiilic hair samples collected from four governorates. Keratinophilic fungi recovered from students’ nails Twenty-one species and one variety belonging to 12 genera were recovered from male and female students’ nails from Aswan, Qena, Sohage and Red Sea governorates. Discussion Fungi associated with students’ hairs Keratinnophilic fungi were collected from male and female students’ hairs.
Fungi associated with students’ nails Twenty-one fungi belonging to 12 genera were recovered from male and female students’ nails.
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