Antifungal Activities of Different Organic Solvent Extracts of Switchgrass (Panicum virgatum L.) Against Some Plant Pathogenic Fungi
Öz
This study was carried out to determine the antifungal activities of different organic solvent (acetone, ethyl acetate, chloroform and methanol) extracts of switchgrass (Panicum virgatum L.) against the plant pathogens Sclerotinia sclerotiorum (Ss), Alternaria solani (As), Fusarium oxysporum f. sp. radicis-lycopersici (Forl) and Verticillium dahliae (Vd). In the research, Trailblazer (PI 549094) variety of Nebraska origin and 70 SG 081 numbered line (PI 642267) of North Dakota origin of switchgrass were used as plant material. 100 g of P. virgatum plant samples were weighed and put into 1 liter glass jars. Extraction was carried out by adding organic solvents; acetone, ethyl acetate, chloroform and methanol in separate jars, enough to cover the plant parts. Antifungal activities of the extracts were determined by using food poisoning method. In addition, LC10, LC50 and LC90 doses of the extracts of switchgrass PV1cultivar and PV2 line. In general, it was determined that Ss was the most sensitive pathogen to PV1 and PV2 extracts, followed by Vd, Forl and As. As a result of the dose-effect study, the lowest LC value for PV1 was 0.66 mg/mL against Vd with acetone extract. Among different organic extracts of PV2, the lowest LC50 value was determined against Ss as 0.48 mg/ml with methanol extract.
Anahtar Kelimeler
Antifungal activities, Plant extract, Plant pathogens, Panicum virgatum, Lethal concentration
Kaynakça
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