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Bol. micol ; 20: 9-13, dic. 2005. tab
Article in English | LILACS | ID: lil-476870

ABSTRACT

Soil samples collected from 10 parks in Milan were examined for the presence of keratinophilic fungi by the Orr’s hair baiting technique. The organisms isolated and their frequency were as follows: Arthroderma uncinatum and its anamorph Keratinomyces ajelloi were dominant and recovered from 22.5 percent - 43.7 percent and 40 por ciento - 50 percent of the soil samples collected in summer and winter respectively. Myceliophthora vellerea was isolated in 31.2 percent of the samples, particularly in winter, Microsporum gypseum in winter (20 percent) and Trichophyton terrestre (10 percent) in summer. Chrysosporium keratinophilum (16.2 percent in summer and 18.7 percent in winter) C. indicum (15 percent s- 23.7 percent w), C. pannicola (5 percent s - 37 percent w). Aphanoascus fulvescens was isolated in summer (23.7 percent). Among the cycloheximide-resistant keratinophilic fungi Alternaria alternata (27.5 percent s – 33.7 percent w), Paecilomyces lilacinus (26.2 percent s - 18.7 percent w) and Acremonium strictum (8.7 percent s - 20 percent w) also were observed. The distribution of the different species is discussed.


Se examinaron muestras de suelo procedentes de 10 parques de Milán para determinar la presencia de hongosqueratinofilicos utilizando la técnica de Orr. Los organismos aislados y su frecuencia fueron: Arthroderma uncinatum y su anamorfo Keratinomyces ajelloi fueron dominantes y se recuperaron desde un 22,5 por ciento-43,7 por ciento y 40 por ciento- 50 por ciento de las muestras de suelo colectadas en verano e invierno respectivamente. Myceliophthora Vellerea fue detectada en el 31,2 por ciento de las muestras, particularmente en invierno, Microsporum gypseum en invierno (20 por ciento) y Trichophyton terrestre (10 por ciento) en verano. Chrysosporium keratinophilum (16.2 por ciento en verano y 18.7 por ciento en invierno) C. indicum (15 por ciento v - 23.7 por ciento i), C. Pannicola (5 por ciento v - 37 por ciento i). Aphanoascus fulvescens fue aislado en verano (23.7 por ciento). Entre los hongos queratinofílicos resistentes a la Cicloheximida, se presentó Alternaria alternata (27.5 por ciento v – 33.7 por ciento i), Paecilomyces lilacinus (26.2 por ciento v - (8.7 por ciento i) y Acremonium strictum (8.7 por ciento v- 20 por ciento i). Se discute la distribución de las diferentes especies.


Subject(s)
Acremonium/isolation & purification , Alternaria/isolation & purification , Arthrodermataceae/isolation & purification , Fungi/isolation & purification , Microsporum/isolation & purification , Soil Microbiology , Trichophyton/isolation & purification , Italy , Soil
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