Primary Studies on Inhibitory Effect of Inula japonica Extract against 6 Phytopathogenic Fungi

doi:10.7668/hbnxb.2007.S2.053

Abstract

Abstract: Inhibitory effect of ethanol extracts from roots,stems,leaves,flowers and whole plants of I.japonica(collected in Chengde,Hebei province) and of fractions from partitioned extracts of flowers in 4 solvents with different polarity against Sphaerotheca fuliginea,Pseudoperonospora cubensis,Colletotrichum orbiculare,Botrytis cinerea,Alternaria solani and Fulvia fulva was tested.The results showed that extracts from different parts of I.japonica exhibited different inhibitory activities,inhibitory effect of extract from flowers was stronger than extract from the other parts.EC50 value of extract from flowers to P.cubensis was 5.48 mg/mL.The crude extract from flowers at 12.5 mg/mL provided 88.89% inhibition against P.cubensis .Furthermore,among all the fractions from flower extracts partitioned with 4 solvents,the fraction in chloroform phase was more efficient than the fractions inhibiting the other 3 solvents.

Key words: Inula japonica, Extracts, Antifungal activity, Phytopathogenic fungi

CLC Number:

S482.2+92

WANG Hong-gang, WANG Wen-qiao, HAN Xiu-ying, ZHANG Xiaofeng, MA Zhi-qiang, LI Hong-xia, CHI Guo-tong. Primary Studies on Inhibitory Effect of Inula japonica Extract against 6 Phytopathogenic Fungi[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(S2): 225-229. doi: 10.7668/hbnxb.2007.S2.053.

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http://www.hbnxb.net/EN/Y2007/V22/IS2/225

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