Inhibitory Effect of 5-Bromomethyl-2(5H)-Furanone against Several Pathogene

5-Bromomethyl-2(5H)-Furanone is forebody of Protoanemonin that is tested to the 6 kinds of the hypha of plant pathogene fungus.The results showed:5-Bromomethyl-2(5H)-Furanone had higher inhibition rate.The inhibition rate was 100%at concentration of 1 000.000 and 500.000 mg·L~(-1) in all the provided pathogene.It had highest inhibition rate to Sclerotinia sclerotiorum(Lib.) de Bary,the EC_(50) was 26.810 mg·L~(-1).When the concentration was 125.000 mg·L~(-1),the inhibition were more that 60%except Alternaria alternata(Fries) Keissler which was 41.07%;When the concentration was 15.625 mg·L~(-1),all the inhibition rate were under 10%;The agentia had high inhibition rate to spore germination,when the concentration was 125.000 mg·L~(-1),the spore germination inhibition rate were 100%,and higher than commercial agentia, when the concentration was 31.250 mg·L~(-1),the spore germination inhibition rate were still higher than 50%.