Induced Resistance of Brassica napus by Fungal Elicitors to Sclerotinia sclerotiorum

In order to enhance the resistance of Brassica napus to Sclerotinia sclerotiorum,the experiments investigated the effects of fungal elicitors,such as cell wall fragment and polysaccharose on Brassica napus.The results showed that the two elicitors both could activate the immune mechanism of Brassica napus,and enhance the production of polyphenol.The production of polyphenol reached the maximum,0.267 mg/g and 0.229 mg/g,respectively induced by the cell wall elicitor after 120 hand by polysaccharose elicitor after 96 h.The extracts of polyphenol from Brassica napus showed strong inhibition on the mycelia growth in vitro,especially the extracts from the treatment by cell wall elicitor had inhibition rate of 60.70%.These results indicate that fungal elicitors can be used for the control of Sclerotinia sclerotiorum.