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Ecological and Physiological Studies on Soil Fungi at Western Region, Libya

A. El-said,A. Saleem

Published 2008 in Mycobiology

ABSTRACT

Sixty three species and 5 varieties belonging to 30 fungal genera were collected from 75 soil samples. Cultivated (29 genera and 58 species + 5 var.), desert (22 and 35 + 2 var.) and saline soil (21 and 41 + 1 var.) fungi were recovered on glueose, cellulose- and 50% suerose-Czapek’s agar at 28°C. The most common genera were Alternaria, Aspergillus, Emerieella, Fusarium, Mycosphaerella, Nectria and Penicillium. The most prevalent species from the three types of soils on the three types of media were Alternaria alternala, Aspergillus flavus, A. fumigatus, A. niger, A. terreus, Emericella nidulans, Fusarium oxysporum, Mycosphaerella tassiana, Nectria haematococca and Penicillium chrysogenum. Chaetomium globosum was in the top of fungi in producing endo-β-l,4-glucanascs among the 42 tested isolates obtained from soils on cellulose-Czapek’s agar. Maximum production of this enzyme by C. globosum obtained after 6 days of incubation at 30°C with culture medium containing maltose as a carbon source and ammonium nitrate as a nitrogen source and pH initially adjusted to 6.

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