Cytochrome p450 play a critical role in plant secondary metabolites synthesis as an ancient gene superfamily 细胞色素p450是一个古老的基因超家族，在植物次生物质的代谢合成中起着极为重要的作用。
2.
The different small letters within the same column indicated significant difference of the metabolism of allelochemicals by gsts in midguts of cotton bollworms larvae ( p 0 . 05 ) . the follows is same 表中同列数据后不同小写字母表示对植物次生物质的代谢率差异显著（ p 0 . 05 ) 。下表同。
