超長鎖脂肪酸伸長酵素阻害型除草剤

概要

論文の詳細を見る
Herbicides inhibiting very-long-chain fatty acid elongases (VLCFAEs), which catalyze the biosynthesis of very-long-chain fatty acids in plants, are categorized in the group K3 by the US Herbicide Resistance Action Committee (HRAC). This group includes many classes of herbicide, namely chloroacetamide, oxyacetamide, tetrazolinone, triazole and oxirane. Metolachlor and acetochlor are representatives of the chloroacetamide herbicide. Flufenacet and mefenacet are oxyacetamide herbicides. Fentrazamide is a tetrazolinone herbicide. Cafenstrole is a triazole herbicide. Indanofan is an oxirane herbicide. Pyroxasulfone for use in upland crops and fenoxasulfone for use in rice are isoxazoline-type herbicides which have new chemical structures. These two herbicides potently inhibit VLCFAEs. Sulfoxide and sulfone of a thiocarbamate herbicide, benthiocarb, which is categorized in the group N by the HRAC, also inhibits VLCFAEs. All classes of these VLCFAE-inhibiting herbicides reversibly inhibit the VLCFAE. This inhibition manner proposes a new inhibition mechanism of the VLCFAE, which is different from the commonly accepted hypothesis that VLCFAE-inhibiting herbicides irreversibly react with VLCFAEs as the chloroacetamidetype herbicides do.
植物化学調節学会の論文
2012-12-20