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首页> 外文期刊>Journal of Stored Products Research >Response of Pteromalus cerealellae to conspecific odor: evidence for female- and male-produced pheromones?
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Response of Pteromalus cerealellae to conspecific odor: evidence for female- and male-produced pheromones?

机译：Pteromalus grainellae 对同种气味的反应：是雌性和雄性产生的信息素的证据？

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摘要

Pteromalus cerealellae (Ashmead) (Hymenoptera: Pteromalidae) is an ectoparasitoid of several pests of stored products. We investigated the role of semiochemicals in mediating intraspecific communication in this parasitoid using electroantennogram (EAG) and behavioral bioassays. Responses of virgin male and female P. cerealellae were tested to airborne volatiles from live male and female conspecifics and to whole body extracts of both sexes. Females showed significantly greater EAG responses than males to whole body extracts of both sexes. Results from Y-tube olfactometer bioassays demonstrated significant attraction of both sexes to live conspecifics of the same (intrasexual attraction) or opposite sex (cross attraction). Females also showed significant attraction to whole body extracts of females, but not to the extract of males. These findings provide preliminary evidence for possible existence of a female-produced sex pheromone and close range cuticular chemicals by both sexes of P. cerealellae, which may play a role in courtship and species recognition. Further studies are needed to characterize these chemicals and determine their roles in the behavioral ecology of P. cerealellae.Digital Object Identifier http://dx.doi.org/10.1016/j.jspr.2011.07.005
机译：Pteromalus grainellae （Ashmead）（膜翅目：翼龙科）是一种几种储存产品的有害生物的外寄生虫。我们使用电造影（EAG）和行为生物测定法研究了化学信息素在介导这种寄生虫中的种内通讯中的作用。原始男性和女性 P的反应。测试了谷类食物中活的雄性和雌性种的空气传播挥发物以及两性的全身提取物。女性对男性和女性全身提取物的EAG反应明显高于男性。 Y型管嗅觉仪生物测定的结果表明，两性对同性（内吸性）或异性（异性性吸引）的活同种生物具有明显的吸引力。雌性对雌性的全身提取物也显示出显着的吸引力，但对雄性的提取物没有吸引力。这些发现提供了由两个iP女性可能存在的女性产生的性信息素和近距离表皮化学物质的初步证据。谷物，可能在求爱和物种识别中起作用。需要进一步研究以表征这些化学物质并确定其在iP行为生态学中的作用。谷类动物。数字对象标识符http://dx.doi.org/10.1016/j.jspr.2011.07.005

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