Study on Antifungal Action of 5 kinds of Chinese Medicinal Plants

Authors CHEN Guosheng

Journal Journal of Anhui Agricultural Sciences , 2008,14:36

Abstract [Objective] The aim to study the antifungal action of 5 kinds of Chinese medicinal plants on 5 kinds of plant pathogen and provide the reference for producing high-effective botanical fungicides.[Method] The antifungal activity of 5 alcohol extracts（concn.of 1 000 mug/ml） from 5 kinds of Chinese medicinal plants as Andrographis paniculate,Polyala tenuifolia Willd,Mentha haplocalyx Briq,Sterculia scaphigera Wall,Dryopteris crassirhixoma Nakai were assayed against Sclerotinia sclerotiorum,Fusarium graminearum,Rhizoctonia cerealis,Botryosphaeria berengriana,Botrytis cinerea in the antifungal test.[Result] The alcohol extracts of 5 kinds of Chinese medicinal plants had the antifungal action to different extent against 5 kinds of plant pathogens,in which,the alcohol extract from A.paniculate had the widest spectrum of antifungal action,with the antifungal rates against 5 kinds of plant pathogens of all above 50%,specially it had most antifungal action against B.berengriana,with the antifungal rates of 96.96%,showing that it had best antifungal effect.The alcohol extracts from P.tenuifolia had the antifungal rates against S.sclerotiorum of 82.37% and that against B.berengriana of 66.55%,indicating that it had obvious antifungal effect.[Conclusion] A.paniculate and S.sclerotiorum had obvious antifungal effect,which had futher research value of taking as the botanical fungicides.

Species covered 薄荷 Mentha haplocalyx