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Evaluation of antifungal potential of Marchantia polymorpha L., Dryopteris filix-mas (L.) Schott and Ephedra foliata Boiss. against phyto fungal pathogens

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Methanol and flavonoid extracts (free and bound) of Marchantia polymorpha L., Dryopteris filix-mas (L.) Schott and Ephedra foliata Boiss. were screened against three fungal plant pathogens: Alternaria solani, Fusarium oxysporum and Rhizoctonia solani. The extracts from D. filix-mas and E. foliata showed >80% of mycelial inhibition of A. solani whereas M. polymorpha and D. filix-mas (rhizome) completely inhibited the mycelial growth of R. solani when tested at highest concentration (5 mg/ml). Inhibition of spore germination of fungi (A. solani and F. oxysporum) was observed to be 100% by most of the extracts at 10 mg/ml. Moreover, plant extracts were found effective in increasing seed germination and seed vigour simultaneously thereby decreasing the percentage of pathogen infection. The results of the present study reveal that the plants screened possess the potential to inhibit the crop fungal pathogens and further investigation is required to explore the biologically active constituents of these plants and to use them as natural plant protectants for agriculture.
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Keywords: Dryopteris; Ephedra; Marchantia; plant pathogens; spore germination

Document Type: Research Article

Affiliations: Laboratory of Plant Tissue Culture and Secondary Metabolites, Department of Botany, University of Rajasthan, Jaipur, Rajasthan, India

Publication date: May 1, 2011

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