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《Acta Agriculturae Boreali-Sinica》 2007-02
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The Inducing Effect of Streptomyces lydicus A02 on Tomato Resistance to Botrytis cinerea-Impact on Defense Enzymes of Tomato Seedlings

LIU Yu1,2,LIU Jian-hua2,LIU Wei-cheng2,QIU Ji-yan2,LIU De-wen2,DUAN Yu-xi1 (1.Plant Protection College,Shenyang Agricultural University,Shenyang 110161, China;2.Institute of Plant and Environment Protection,Beijing Academy of Agricultural and Forestry Sciences,Beijing 100097,China)  
The study on inducing resistant effect of Streptomyces lydicus A02 to tomato gray mold were carried out in greenhouse.Tomato seedlings were treated via three methods: only inducing with fermentation broth of Streptomyces lydicus A02,inducing after inoculating with spore suspension of Botrytis cinerea,inoculating after inducing.The activities of 4 defense enzymes in tomato leaves were assayed by ultraviolet-visible absorption spectroscopy.The results showed that all the three treatments could increase the activities of defense enzymes,of which the treatment of inoculating after inducing presented a better inducing effect on 4 defense enzymes and a better control effect on tomato gray mold than inducing after inoculating did.The control effect was up to 94.92%.
【Fund】: 北京市科技计划项目(D0706005000091);; 国家自然科学基金资助项目(30671346);; 北京市自然科学基金项目(6072010)
【CateGory Index】: S436.412
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