Avand-Faghih Arman, Frérot Brigitte
Iranian Research Institute of Plant Protection, P.O. Box 1454, Tehran 19395, Iran.
J Chem Ecol. 2008 Jan;34(1):103-6. doi: 10.1007/s10886-007-9403-1. Epub 2007 Dec 19.
By using solid phase micro-extraction and gas chromatography-mass spectrometry analyses, a sex pheromone blend for the stem borer, Sesamia cretica Lederer (Lepidoptera, Noctuidae), was identified as consisting of (Z)-9-tetradecen-1-ol (80%), (Z)-9-tetradecen-1-yl acetate (10%), and (Z)-11-hexadecen-1-ol (10%). The first two components had previously been discovered as attractants for S. cretica in field tests, but had not been identified in the female's sex pheromone gland. A field-trapping trial showed that the three-component blend gave the highest catches of male S. cretica. This blend, in a sticky trap, was used to monitor a population of S. cretica in Iran, allowing the seasonal flight activity of this insect to be compared with that of a sympatric population of S. nonagrioides. The role of pheromones in the reproductive isolation of these species is discussed.
通过固相微萃取和气相色谱 - 质谱分析，已鉴定出一种用于埃及蛀茎夜蛾（Sesamia cretica Lederer，鳞翅目，夜蛾科）的性信息素混合物，其由（Z）-9-十四碳烯-1-醇（80%）、（Z）-9-十四碳烯-1-基乙酸酯（10%）和（Z）-11-十六碳烯-1-醇（10%）组成。前两种成分此前在田间试验中已被发现是埃及蛀茎夜蛾的引诱剂，但尚未在雌蛾的性信息素腺体中鉴定出来。一项田间诱捕试验表明，这种三元混合物捕获的雄性埃及蛀茎夜蛾数量最多。这种混合物用于粘性诱捕器中，以监测伊朗的埃及蛀茎夜蛾种群，从而能够将这种昆虫的季节性飞行活动与同域分布的西班牙蛀茎夜蛾（Sesamia nonagrioides）种群的飞行活动进行比较。文中还讨论了性信息素在这些物种生殖隔离中的作用。
