生物土壤添加剂对连作黄瓜防御酶系及酚类物质含量的影响  

Effects of biological soil amendment on defense enzyme activity and phenolic compound of cucumber continuous cropping

作　　者：郝永娟[1] 魏军[1] 刘春艳[1] 王勇[1] 王万立[1] 

机构地区：[1]天津市植物保护研究所,天津300112

出　　处：《植物病理学报》2009年第4期444-448,共5页Acta Phytopathologica Sinica

基　　金：天津市应用基础及前沿技术研究(08JCYBJC04800);天津市科技攻关培育项目(05YFGPNC02900);国家"十一五"科技支撑计划(2006BASD07B02)

摘　　要：The changes of several defense enzyme activities and phenolic compound in cucumber roots were examined after biological soil amendment(BSA) was applied to the cucumber continuous cropping through pot trials.It could promote seedling growth and reduce disease incidence.The results showed that the activities of defense enzymes such as peroxidase(POD),polyphenol oxidase(PPO) and TTC in treated cucumber roots were measured significantly higher than that of control.The activities of POD and PPO in BSA-treated roots were significantly higher than that of control after inoculation with Fusarium oxysporum(Schl.)f.sp.Cucumerinum.Phenolic compound content of roots decreased in the initial period of inoculation,increased after di-sease incidence,but it was higher in BSA-treated than that of control.These indicated that BSA could induce the defense enzyme activities and increased phenolic compound in cucumber roots.The changes of several defense enzyme activities and phenolic compound in cucumber roots were examined after biological soil amendment（BSA） was applied to the cucumber continuous cropping through pot trials. It could promote seedling growth and reduce disease incidence. The results showed that the activities of defense enzymes such as peroxidase （POD）, polyphenol oxidase （PPO） and TTC in treated cucumber roots were measured significantly higher than that of control. The activities of POD and PPO in BSA-treated roots were significantly higher than that of control after inoculation with Fusarium oxysporum （ Schl. ） f. sp. Cucumerinum. Phenolic compound content of roots decreased in the initial period of inoculation, increased after disease incidence, but it was higher in BSA-treated than that of control. These indicated that BSA could induce the defense enzyme activities and increased phenolic compound in cucumber roots.

关 键 词：土壤添加剂 连作障碍 酚类物质含量 生物肥 防御酶系 黄瓜 土传病害 农业废弃物 

分 类 号：S567.53[农业科学—中草药栽培] S565.1[农业科学—作物学]