Document Details
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Document Type |
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Article In Journal |
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Document Title |
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Microfungal communities in litter of dominant plants cover at A1- Baha region, Saudi Arabia مجتمعات ميكروفنجال في فضلات غطاء النّباتات المهيمن في ممتاز - منطقة بها، المملكة العربيّة السّعوديّة |
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Subject |
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Microfungal communities in litter of dominant plants cover at A1- Baha region, Saudi Arabia |
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Document Language |
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Arabic |
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Abstract |
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Twenty five mould species belonging to eleven genera were isolated from the litters of dominant plants cover (Twelve species) at Al-Baha region, Saudi Arabia on Czapek¬Dox agar medium. Fungal community was dominated by Aspergillus niger and Fusarium oxysporum ( 100% frequency) and to a lesser extent Trichoderma harzianum, Mucor racemosus and Fusarium acuminatum ( 83.3 to 66.7 % frequency). While, A. flavus, A. terreus, Botryotrichum piluliferum, Emericella nidulans and Macrophomina phaseolin a showed only 8.3 % frequency. The effect of growth medium, incubation temperature, pH value and salinity, on the growth of most dominant fungal species( 13 species) were estimated. Czapek-Dox agar medium was optimum for maximal linear growth of Acremonium strictum, M. racemosus, and T. koningii, after six days of incubation. However, A flavipes, Circinella muscae and Penicillium janczewskii have the least activities to assimilate the ingredients of tested media in favor their growth. Tested moulds failed to grow at 55°C and A. flavipes, A. niger and E. nidulans showed thermotolerant activity. Selected species responded differently to the tested pH values of Czapek-Dox broth. Penicillium jaczewskii, T. harzianum, T .koningii, F. niveus, A . flavipes and A. melleus were acidophilic(pH 3.5 to 4.5). While, E .nidulans and G. roseum were alkaliphilic(pH 8.1) and the rest moulds gave their best growth values around neutrality(pH 5.9 to 6.8). The growth of tested fungi responded differently to salinity( 0- 14% NaCl). Circinella muscae appeared to be halophilic(attained best growth at 14% NaCI). Cellulytic, pectinolytic and amylolytic activities of tested fungi indicated that they have noticeable efficiencies to produce them. This finding indicated their major role in litter decomposition |
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ISSN |
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1012-1319 |
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Journal Name |
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Science Journal |
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Volume |
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45 |
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Issue Number |
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1 |
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Publishing Year |
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1428 AH
2007 AD |
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Article Type |
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Article |
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Added Date |
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Tuesday, January 25, 2011 |
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Researchers
| صالح محمد القرني | alqurni, saleh muhammed | Investigator | Doctorate | |
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