作者:Franck E. Dayan、Giovanni Meazza、Franco Bettarini、Ernesto Signorini、Paolo Piccardi、Joanne G. Romagni、Stephen O. Duke
DOI:10.1021/jf001393o
日期:2001.5.1
IR 5790, an arylthiadiazolone herbicide structurally related to oxadiargyl and oxadiazon, was synthesized. The herbicidal activity and mode of action of IR 5790 were investigated. This herbicide has broad-spectrum pre-emergence activity against both dicotyledonous and monocotyledonous weeds. The phenotypic responses of susceptible plants, such as interruption of growth and light-dependent development
合成了IR 5790,一种在结构上与草二炔和草二唑相关的芳基噻二唑酮除草剂。研究了IR 5790的除草活性和作用方式。该除草剂对双子叶和单子叶杂草均具有广谱的出苗前活性。易感植物的表型响应,例如生长中断和叶片上坏死区域的光依赖性发育,与用原卟啉原氧化酶抑制性除草剂观察到的一致。在黑暗中暴露于IR 5790的组织积累了原卟啉IX,这导致光暴露后膜完整性的光动力损失。与这些生理症状一致,IR 5790强烈抑制原卟啉原氧化酶,I(50)值为3 nM。