摘要
传统上仅在两级营养水平上研究植物对植食者的防御。也就是说，仅在天敌与植食者或植食者与植物水平上进行研究。但是，进一步的研究越来越清楚地显示植物可以直接影响天敌植食者。研究表明，植食者诱导的植物信号物质可以诱集天敌消灭害虫，当植物被放在这种相互联系中考...
. Plants emit synomone by herbivore feeding to attract natural enemies to protect themselves. Herbivore-induced synomone indicates the presence of host clearly and specifically and plays an important role to the location of natural enemies in the search of long distance. Different plants and herbivores can induce different chemicals, so the production of synomone has the specificity of species. In addition, spatial and temporal factors regulate the production of synomone. Research on chemical ecology of synomone shows that the main components of synomone are “green leaf odor”, terpene and indole.β-Glucosidase in caterpillars' oral secretion is an elicitor of synomone. But some plants release synomone systemically and elicitor of which has not been known yet. There are three possible pathways for plants to synthesize synomone, namely isoprenoid pathway, fatty acid/lipoxygenase pathway and shikimic acid/tryptophan pathway.
出处
《生态学杂志》
CAS
CSCD
北大核心
1998年第6期33-39,27,共8页
Chinese Journal of Ecology
基金
福建省科委
福建省"百千万人才工程"领导小组的资助
关键词
植食者
植物信号物质
互益素
生物防治
herbivore, plant defense, natural enemies, tritrophical level, synomone.
