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4,5,5-三氟-N-(杂芳基甲基)戊-4-烯酰胺的合成及杀线虫活性 被引量:2
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作者 刘城 杨海平 +3 位作者 张瑞峰 李忠 peter maienfisch 徐晓勇 《农药学学报》 CAS CSCD 北大核心 2022年第1期21-30,共10页
植物寄生线虫可能对全球农作物造成严重的危害。本研究设计合成了15个未见文献报道的4,5,5-三氟戊-4-烯酰胺衍生物,并测定了它们的离体活性和在沙土中的活体杀线虫活性,且进一步研究了沙土活体活性较好的化合物在基质中的活体杀线虫活... 植物寄生线虫可能对全球农作物造成严重的危害。本研究设计合成了15个未见文献报道的4,5,5-三氟戊-4-烯酰胺衍生物,并测定了它们的离体活性和在沙土中的活体杀线虫活性,且进一步研究了沙土活体活性较好的化合物在基质中的活体杀线虫活性。离体测试结果表明:部分目标化合物表现出较好的杀线虫活性,其中含呋喃环的化合物B 8对南方根结线虫Meloidogyne incognita和松材线虫Bursaphelenchus xylophilus均表现出优异的杀线虫活性,LC50/72 h值分别为1.22 mg/L和0.53 mg/L。此外,在沙土活体活性测试中,大部分化合物在40 mg/L时对南方根结线虫具有100%的抑制作用,其中含苯并噻唑环的化合物B10的活性最好,在2.5 mg/L时抑制率为66.0%。在基质中的活体活性测试结果表明,含噻吩环的化合物B6活性最好,在5 mg/L时对南方根结线虫的抑制率为31.0%。初步的构效关系分析显示,含无取代五元环如噻吩、呋喃和噻唑的化合物的活性优于含大体积的六元环或稠环的化合物。 展开更多
关键词 4 5 5-三氟戊-4-烯酰胺 南方根结线虫 松材线虫 杀线虫活性
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RNA-Based Biocontrols--A New Paradigm in Crop Protection 被引量:6
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作者 Matthew Bramlett Geert Plaetinck peter maienfisch 《Engineering》 SCIE EI 2020年第5期522-527,共6页
Modern agribusiness plays a vital role in safeguarding and improving the production,quality,and quantity of food,feed,fiber,and fuel.Growing concerns over the impact of chemical pesticides on health and the environmen... Modern agribusiness plays a vital role in safeguarding and improving the production,quality,and quantity of food,feed,fiber,and fuel.Growing concerns over the impact of chemical pesticides on health and the environment have stimulated the industry to search for alternative and greener solutions.Over the last years,the RNA interference(RNAi)process has been identified as a very promising new approach to complement the arsenal of foliar spray,soil,or seed treatments applied as chemical and biological pest control agents,and of plant-incorporated protectants(PIPs).RNA-based active ingredients(AIs)possess a unique mode of action and can be implemented via both genetic modification(GM)and biocontrol approaches.RNA-based AIs promise to deliver the selectivity and sustainability desired in future crop protection agents.This is due to their utilization of a natural process to exert control and their high level of selectivity,which leads to reduced risk for non-target organisms(NTOs).This review discusses the advantages and limitations of RNA-based solutions in crop protection and recent research progress toward RNA-based biocontrols against the Colorado potato beetle(CPB),corn rootworm(CRW),and soy stink bug(SSB).Many challenges still exist on the road to the implementation of a broad range of RNA-based products and their widespread use and application.Despite these challenges,it can be expected that RNA-based AIs will become valuable new tools complementing the current arsenal of crop-protection solutions. 展开更多
关键词 RNA-based biocontrols RNA interference(RNAi) Colorado potato beetle(CPB) Corn rootworm(CRW) Soy stink bug(SSB)
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