Studies on the rhizosphere mycoflora of Euphorbia granulata forsk. and E. heterophylla L. |
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Authors: | Mahgoub H. Abdalla Fawzia Omer |
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Affiliation: | (1) Botany Department, Faculty of Science, University of Khartoum, Sudan;(2) Present address: Botany and Microbiology Department, Faculty of Science, University of Kuwait, State of Kuwait |
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Abstract: | Unlike many higher plants Euphorbia granulata and E. heterophylla do not encourage the development of fungi in their rhizospheres. Fungi recovered therefrom were limited both in number and range of species. The rhizosphere of E. heterophylla was slightly favourable to soil fungi when compared with the other weed plant. Aspergillus niger was least affected by both types of rhizosphere. Expressed latexcontaining sap of E. granulata was remarkably inhibitory to submerged cultures of A. flavus, A. nidulans, Fusarium sp., Curvularia sp. and Helminthosporium. Conidia and mycelial fragments recovered from these cultures failed either to germinate or resume growth thus exhibiting an antifungal property of E. granulata latex. |
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