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AHM El-Said
AHM El-Said
Egypt
Publications
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Research Article
Pathogenicity and Pectinase Activity of Some Facultative Mycoparasites Isolated from Vicia faba Diseased Leaves in Relation to Photosynthetic Pigments of Plant
Author(s): A Saleem, AHM El-Said, TA Maghraby and MA HusseinA Saleem, AHM El-Said, TA Maghraby and MA Hussein
Fourteen dematiaceous hyphomycetes fungi related to 9 genera isolated from diseased leaves of broad bean plant were investigated for their pathogenicity. Eight fungal species (represent 57.15% of total fungi tested) were positive and successfully able to infect broad bean leaves appearing leaf spot symptoms. Among these fungi Alternaria alternata was the most active virulent and produced leaf spots on more than 75% of infected leaves. Six fungal species (42.85%) had negative pathogenicity result and unable to infect the leaves of plant failing to produce any leaf spot symptoms. The photosynthetic pigments (chlorophyll a, chlorophyll b and carotenoids) were significantly decreased as a result of the infection of phytopathogenic fungi. The concentrations of photosynthetic pigments were adversely affected by the degree of pathogenicity. Eight phytopathogenic fungi were screened for their.. View More»
DOI: 10.4172/2157-7471.1000141