Evolution of benzoxazinone biosynthesis and indole production in maize

被引:118
作者
Gierl, A [1 ]
Frey, M [1 ]
机构
[1] Tech Univ Munich, Lehrstuhl Genet, D-85747 Garching, Germany
关键词
chemical defense mechanisms; cytochrome P450 enzymes; 2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one (DIMBOA) biosynthesis; evolution (secondary metabolic pathways) secondary metabolism; Zea (defense mechanisms);
D O I
10.1007/s004250100594
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The synthesis of a diverse spectrum of secondary metabolites has allowed plants to develop sophisticated chemical defense mechanisms. Maize (Zea mays L.), for example, releases a cocktail of volatile compounds when attacked by a caterpillar. These compounds attract a parasitic wasp, which deposits its eggs in the larvae, thereby controlling the population size of the herbivore. Indole, which is part of the cocktail, is produced by an enzyme recruited from primary metabolism. Indole can either function as a volatile signal or be converted by specific cytochrome P450 enzymes into benzoxazinoids, which function as important defense chemicals.
引用
收藏
页码:493 / 498
页数:6
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