项目名称: 光敏噻吩类化合物氧化酶激发作用及其对线虫的控制作用研究
项目编号: No.U1204321
项目类型: 联合基金项目
立项/批准年度: 2013
项目学科: 植物保护学、园艺学与植物营养学
项目作者: 吴仁海
作者单位: 河南省农业科学院
项目金额: 30万元
中文摘要: 万寿菊利用氧化酶系激发噻吩类化合物并对线虫产生防御作用,申请者研究发现,漆酶能够大大提升2,5-二芳基乙炔基噻吩类化合物在黑暗条件下对J2根结线虫的活性,据此申请者提出“氧化酶激发杀线虫假说”,利用光敏素的氧激发现象控制线虫。为证实该假说,实施以下实验:1、不同光敏化合物的氧化酶激发作用研究,讨论何种光敏化合物具备酶活化性能;2、不同氧化酶对光敏素的激发作用研究,评价植物体内何种氧化酶对其激发作用最强;3、通过ESR等技术研究氧化酶对光敏素激发的机理,确定氧化酶激发是否产生单线态氧等自由基;4、通过人工合成,获得具有内吸性、光活化特性的化合物,研究其在植物体内对线虫的防御作用。项目对一种新型线虫防治策略进行辩证,大大促进新型的噻吩类杀线虫剂的创制,在经济值和科研上均具有重要的价值和意义。
中文关键词: 线虫;噻吩类光敏素;氧化酶系;合成;胡椒碱
英文摘要: Thiophene compounds can be activated to suppress the nematodes by root oxydase in marigold. The research found that laccase improved the 2,5-diarylethynylthiophene’s toxicity to J2 Meloidogyne species in the dark. So, the applicant proposed the hypothesis that thiophene photosensitizer could be excited the nematicidal activity by oxydase. The series test were conducted to validate the hypothesis. First, the different photosensitizers were exticited by oxydase to illustrate which kind of photosensitizer with the characteristic. Second, the different kinds of oxydase were research to definite the activated ability of oxydase. Third, the methanism of thiophene reaction with oxydase were research by ESR technology. Fourth, the systemic absorbable thiophene photosensitizers were synthysized,estimated the biologic activity and applied to control the plant-parasitic nematodes. The project is usefull to research the new kinds of tactics to control plant-parasitic nematodes.
英文关键词: nematode;thiophene photosensitizer;oxydase;synthesis;piperine