Effect of qualitative and quantitative variation in allelochemicals on a generalist insect: Iridoid glycosides and the southern armyworm
Effect of qualitative and quantitative variation in allelochemicals on a generalist insect: Iridoid glycosides and the southern armyworm
复制标题
化感物质的定性和定量变化对多面性昆虫的影响：环烯醚萜苷和南方粘虫
DOI：
10.1007/bf01022550
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发表时间：
2005
影响因子：
2.3
通讯作者：
M. Bowers
中科院分区：
文献类型：
--
作者：
G. Puttick;M. Bowers
植物化感物质的行为和生理影响一直很难证明；人们通常不清楚这些化合物是威慑、有毒还是两者兼而有之。在这项研究中，我们比较了几种环烯醚萜苷对鳞翅目食草动物Eridania(夜蛾科)的定性和定量影响。在含有不同浓度环烯醚萜苷的人工饲料中，测定了幼虫的生长、存活和对幼虫的偏爱或避避。我们还测试了这些化合物的毒性/威慑力。我们发现，环烯醚萜苷在相对较低的浓度下对幼虫的生长有显着的抑制作用，而且在偏好测试中通常会避免使用。毒性/威慑试验并不总是反映这些其他试验的结果。讨论了使用各种方法测定植物化感物质的威慑力和/或毒性的优点。
The behavioral and physiological effects of plant allelochemicals have been difficult to demonstrate; it is not often clear whether the compounds are deterrent, toxic, or both. In this study, we compared the qualitative and quantitative effects of several iridoid glycosides on a generalist lepidopteran herbivore,Spodoptera eridania (Noctuidae). Larval growth and survivorship and larval preference or avoidance were measured on artificial diets containing different iridoid glycosides at different concentrations. We also tested the toxicity/deterrence of these compounds. We found that iridoid glycosides retarded larval growth significantly at relatively low concentrations and that they were usually avoided in preference tests. The toxicity/ deterrence test did not always reflect the results of these other tests. The merits of using a variety of methods for determining deterrence and/or toxicity of plant allelochemicals are discussed.