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KMID : 1160220080360010001
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Mycobiology
2008 Volume.36 No. 1 p.1 ~ p.9
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Ecological and Physiological Studies on Soil Fungi at Western Region, Libya
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El-Said A. H. M.
Saleem A.
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Abstract
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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 glucose-, cellulose- and 50% sucrose-Czapek's agar at 28oC. The most common genera were Alternaria, Aspergillus, Emericella, Fusarium, Mycosphaerella, Nectria and Penicillium. The most prevalent species from the three types of soils on the three types of media were Alternaria alternata, 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-1,4-glucanases 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 30oC 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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KEYWORD
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Cellulolytic ability, Soil fungi
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