细胞色素P450在植物与昆虫相互关系中的作用

细胞色素P4 5 0在植物与昆虫相互关系中发挥重要的作用 ,植物可以利用P4 5 0来合成有毒物质以防御昆虫的取食 ,而昆虫则利用P4 5 0对植物毒素进行代谢解毒 ,昆虫以植物代谢中间物为原料合成自身活性物质的过程也有P4 5 0的参与。通过长期的协同进化 ,植物与昆虫的相互作用不仅表现在P4 5 0底物特异性方面 ,也反映在P4 5 0的表达调控上。

The role of cytochrome P450 in plantinsect interactions.

Cytochrome P450 monooxygenases play a fundamental role in plant-insect interactions. Plants use P450s to synthesize toxic allelochemicals that serve as defensive compounds against herbivores. Insects use P450s to detoxify allelochemicals in their host plants that are toxic to other insect species. Some insect P450s involve the synthesis of certain active compounds using metabolites of plants. One of the most fascinating aspects of the plant and insect P450s involved in these interspecies interactions is their induction and regulation.