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研究结果表明，草甘膦除抑制芳香氨基酸的生物合成外还抑制莽草酸的生物合成，作用部位在磷酸烯醇丙酮酸到莽草酸中间；同时还抑制胡萝卜素、叶黄素的生物合成，作用部位在丙酮酸之后的乙酰辅酶Ａ到类胡萝卜素中间；抑制叶绿素的生成作用部位在琥珀酰ＣＯＡ与σ－氨基ｒ－酮戊酸中间；此外草甘膦还抑制光合磷酸化，作用部位为抑制ＡＴＰ酶的活性。草甘膦高效的杀草能力，应当是它多种作用的综合结果
The results show that glyphosate inhibits the biosynthesis of shikimic acid in addition to the inhibition of the aromatic amino acid biosynthesis, and the action site is in the middle of phosphoenolpyruvate to shikimic acid. At the same time, glyphosate also inhibits the biosynthesis of carotene and lutein Part of the acetyl-CoA after pyruvate to carotenoid middle; inhibit the formation of chlorophyll in the role of succinyl COA and σ-amino r-keto valeric acid intermediate; In addition glyphosate also inhibit photosynthetic phosphorylation, the site of inhibition ATPase activity. The efficient glyphosate herbicidal activity should be the result of its multiple effects