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黄草灵,H_2NSO_2NHCOOCH_3,是氨基甲酸酯系列除草剂中的一种,商品名为Asulam.其杀草谱广,特别是对防除多年生的深根杂草效果良好.同时它还具有对哺乳动物低毒、在土壤中残效期短以及易被非防除对象的生物体降解等特点.氨基甲酸酯类化合物为内吸传导性除草剂.据文献报道,黄草灵被植物吸收后输送至顶部和芽中。它的主要杀草机理是抑制RNA和蛋白质的合成.有人证明,诱导效应、立体效应、共振效应以及分子的大小等因素都影响氨基甲酸酯类化合物在植物体内被酶水解的速度.我们测定了黄草灵的晶体结构,可为研究其除草机理提供一些资料.
Huangcao Ling, H_2NSO_2NHCOOCH_3, is a series of carbamate herbicides, known as Asulam. Its broad spectrum of herbicides, especially for the control of perennial deep-rooted weeds with good effect. At the same time it also has low toxicity to mammals , Short residual effect in the soil and easy to be biodegradable non-control objects, etc. Carbamate compound is a systemic herbicide.According to the literature, the yellow grass is absorbed by plants and transported to the top and bud. Its main mechanism of herbicide is inhibition of the synthesis of RNA and protein.It has been shown that induction, steric effect, resonance effect and molecular size and other factors all affect the rate of carbamate hydrolysis in plants.We measured The crystal structure of Huangcao Ling can provide some information for studying its weeding mechanism.