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乙酰乳酸合成酶(ALs)/乙酸羟酸合成酶(AHAS)抑制剂,即通过抑制植物的ALS/AHAS,阻止支链氨基酸如缬氨酸、亮氨酸、异亮氨酸的生物合成,最终破坏蛋白质的合成,干扰DNA合成及细胞分裂与生长。ALS/AHAS抑制剂的化学结构主要有四类:磺酰脲类、咪唑啉酮类、三唑并嘧啶磺酰胺类和嘧啶水杨酸类。近期开发的除草剂乙酰乳酸合成酶(ALS)/乙酸羟酸合成酶(AHAS)抑制剂在保持原有高活性、对环境友好的前提下,主要特点是对后茬作物安全。到目前为止共有50个化合物商品化或在开发中,其中磺酰脲类33个:氯磺隆(1979)、氯嘧磺隆1982)、甲磺隆
Acetolactate synthase (ALs) / acetic acid hydroxyacid synthase (AHAS) inhibitors, which block the biosynthesis of branched-chain amino acids such as valine, leucine and isoleucine by inhibiting plant ALS / AHAS, eventually Disrupt protein synthesis, interfere with DNA synthesis and cell division and growth. There are four main chemical structures for ALS / AHAS inhibitors: sulfonylureas, imidazolinones, triazolopyrimidinesulfonamides, and pyrimidine salicylates. Recently developed herbicides acetolactate synthase (ALS) / acetate acid synthase (AHAS) inhibitors remain the original high activity, environmentally friendly premise, the main feature is the safety of the crop after the crop. To date, a total of 50 compounds have been commercialized or under development, including 33 sulfonylureas: chlorsulfuron (1979), chlorimuron 1982), metsulfuron-methyl