Forest Service, USDA, Pacific Southwest Research Station, P.O. Box245, 94701, Berkeley, California.
J Chem Ecol. 1993 Aug;19(8):1809-31. doi: 10.1007/BF00982310.
There has been a renaissance of interest in the significance of enantiomeric composition in biological systems. Three chiral monoterpene alcohol aggregation pheromone components (ipsenol, ipsdienol, andcis-verbenol) commonly isolated from engraver beetles (Ips spp.) provide a paradigm for this theme as it relates to olfactory-guided insect behavior. The literature pertaining to this system is reviewed and the effects of the enantiomeric composition of these semiochemicals on theIps spp. community is explored on two trophic levels. Hypotheses generated from the well-studied aggregation pheromone production and response patterns forI. paraconfusus Lanier andI. pini (Say) are generalized to the North American species in the genus. Despite the progress withI. paraconfusus andI. pini, substantial deficiencies exist in our understanding of the role of enantiomeric composition in pheromonal/allomonal effects in different subgeneric groups, in the regulation and mechanisms of stereoselective biosynthesis of the monoterpene alcohols, and in the benefits derived by individual insects that produce relatively large proportions of inactive or interruptive enantiomers with attractive enantiomers.
人们对生物系统中对映体组成意义的兴趣再度兴起。从雕木象甲属（Ips 种）中通常分离出的三种手性单萜醇聚集信息素成分（异松油醇、异松油烯二醇和顺式马鞭草烯醇）为这一主题提供了范例，因为它与嗅觉引导的昆虫行为有关。本文综述了与该系统相关的文献，并探讨了这些半化学物质的对映体组成对两个营养水平上的雕木象甲属群落的影响。从研究充分的聚集信息素产生和响应模式中得出的假设被推广到该属的北美种。尽管在 I. paraconfusus 和 I. pini（Say）方面取得了进展，但我们对在不同亚属群体中对映体组成在信息素/他感作用、单萜醇的立体选择性生物合成的调控和机制以及产生大量无活性或中断性对映体的个体昆虫的益处的理解仍然存在很大的不足，而这些对映体具有吸引力。
