Department of Biological Sciences, Illinois State University, 61761, Normal, Illinois.
J Chem Ecol. 1992 Oct;18(10):1743-53. doi: 10.1007/BF02751099.
FemaleMicroplitis croceipes wasps were tested in a wind tunnel for their ability to orient to various concentrations of eight different green leaf volatile (GLV) substances [hexanal, (E)-2-hexenal, (E)-2-hexen-1-ol, (Z)-3-hexen-1-ol, (E)-2-hexenyl acetate, (Z)-3-hexenyl acetate, (Z)-3-hexenyl propionate, and (Z)-3-hexenyl butyrate]. Overall, the esters elicited the greatest percentage of successful orientation flights, the alcohols elicited an intermediate response, and the aldehydes elicited a low response. The semilog dose-response curves were generally hill-shaped with high responses at medium release rates and low responses at high or low release rates. For the aldehydes, positive responses occurred at all GLV release rates between 0.01 and 100 nl/min. For some alcohols and esters, positive responses occurred at release rates as low as 1 pl/min and as high as 1μl/min. These data show thatM. croceipes wasps are strongly attracted to GLVs and are capable of orienting to GLV concentrations that would occur in nature when a caterpillar feeds on a green leaf. Hence, in nature, GLVs may be important clues, enablingM. croceipes to locate their hosts.
雌性小菜蛾茧蜂在风洞中接受了八项不同绿叶挥发物（GLV）物质[己醛、（E）-2-己烯醛、（E）-2-己烯-1-醇、（Z）-3-己烯-1-醇、（E）-2-己烯基乙酸酯、（Z）-3-己烯基乙酸酯、（Z）-3-己烯基丙酸酯和（Z）-3-己烯基丁酸酯]不同浓度的定向能力测试。总体而言，酯类物质引发的成功定向飞行比例最大，醇类物质引发的反应居中，醛类物质引发的反应最低。半对数剂量反应曲线通常呈山形，在中等释放率下有较高的反应，在高释放率或低释放率下有较低的反应。对于醛类物质，在 0.01 到 100 nl/min 的所有 GLV 释放率下均出现正反应。对于一些醇类和酯类物质，在 1 pl/min 到 1μl/min 的释放率下也会出现正反应。这些数据表明，小菜蛾茧蜂对 GLVs 有强烈的吸引力，并且能够定向于自然界中当毛毛虫以绿叶为食时会出现的 GLV 浓度。因此，在自然界中，GLVs 可能是重要的线索，使小菜蛾茧蜂能够找到它们的宿主。
