International Journal of Multidisciplinary Research and Development

International Journal of Multidisciplinary Research and Development

Online ISSN: 2349-4182
Print ISSN: 2349-5979

Vol. 1, Issue 7 (2014)

Biological control of plant pathogenic fungi isolated from some wild plants from Madhya Pradesh, India

Author(s): Ramanuj Patel
Abstract: Twenty two plants were collected from Madhya Pradesh and identified as: Aerva lanata, Arnebia hispidissima, Artemisi ajudaica, Artemisia monosperma, Asphodelus aestives, Avena barbata, Capparis dcidua, Eucalyptus globulus, Euphorbia glomerifera, Foeniculum vulgare, Forsskaolea tenacissima, Juniperus procera, Launaea mucronata, Launaeasonchoides, Medicago sativa, Opuntia ficus, Phagnalon sinaicum, Prunus persica, Pulicaria crispa, Punica granatum, Rumex dentatus and Trichodesma calathiforme. Pathogenic fungi were isolated from some of these plants and identified as Alternaria alternata, Cephalosporium madurae, Cladosporium herbarum, Fusarium oxysporum, Humicola grisea, Penicillium chrysogenum and Ulocladium botrytis. Four antagonistic isolates were tested from Gliocl adium fungus and from Trichoderma fungus. We found that all the four antagonistic isolates (G. deliquescens, G. virens, T. viride and T.haatum) significantly inhibited the radial growth of the pathogenic fungi tested, with different ratios. The results indicated that the antibiotics produced by the antagonists were more effective than the fungus itself and differ with different fungi. Coating plant stems with antagonists or with antagonist extracts reduce the severity of the disease but not prevents it in all tested pathogens.
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