Identification of Critical Secondary Components of the Sex Pheromone of the Navel Orangeworm (Lepidoptera: Pyralidae)
Identification of Critical Secondary Components of the Sex Pheromone of the Navel Orangeworm (Lepidoptera: Pyralidae)
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DOI：
10.1603/ec09177
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发表时间：
2010-04-01
影响因子：
2.2
通讯作者：
Millar, Jocelyn G.
中科院分区：
文献类型：
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作者：
Kuenen, L. P. S.;McElfresh, J. Steven;Millar, Jocelyn G.
我们确定了一个四个组成部分的性信息素混合物，是有吸引力的或更有吸引力的男性肚脐orangeworm蛾，Amyelois transitella（步行者）（鳞翅目：螟蛾科），比未交配的女性或己烷提取物的信息素腺体的女性。该共混物由（11 Z，13 Z）-十六碳二烯醛;（11 Z，13 Z）-十六碳二烯-1-醇;（11 Z，13 E）-十六碳二烯-1-醇;和烃，（3 Z，6 Z，9 Z，12 Z，15 Z）-二十三碳五烯（C23五烯）以大约100：100：5：5的比例组成。信息素腺体提取物的其它次要组分包括（11 Z，13 E）-十六碳二烯醛;（11 E，13 Z）十六碳二烯醛;（11 Z，13 Z）-十六碳二烯-1-基乙酸酯;（Z）-11-十六碳烯醛;十六醛：十六碳-1-醇;和第二个五烯，（346 Z，9 Z，12 Z，15 Z）-五碳五烯（C25五烯）.这些次要成分并没有增加吸引力的男性肚脐橙虫的基本四组分混合物。使用另一种交叉吸引的螟蛾，Pyratis farrheum L.，作为一个模型物种是至关重要的暗示C23五烯作为一个重要组成部分的脐橙蠕虫信息素混合物。采用风洞和田间生物测定相结合的方法，对四组分脐橙虫信息素混合物进行了优化。现场部署的合成信息素诱惑的吸引力迅速下降，尽管纳入稳定剂和使用不同的释放装置，这表明降解产物拮抗男性脐橙的反应。总体而言，I型鳞翅目信息素组分的组合组成的Cm醛和醇与H型组分组成的长链多不饱和烃，现在已被记录在几个鳞翅目物种，并可能表明一个范式转变的范围内的化合物，构成性信息素混合物的个别鳞翅目物种。这表明，仔细重新检查I型和II型化合物的信息素腺体内容物可能证明富有成效的物种已被研究，但完整的引诱剂混合物已逃避识别。
We identified a four-component sex pheromone blend that is as attractive or more attractive to male navel orangeworm moths, Amyelois transitella (Walker) (Lepidoptera: Pyralidae), than either unmated females or hexane extracts of pheromone glands of females. The blend consisted of (.11Z,13Z)-hexadecadienal; (11Z,13Z)-hexadecadien-1-ol; (11Z,13E)-hexadecadien-1-ol; and a hydrocarbon, (3Z,6Z,9Z,12Z,15Z)-tricosapentaene (C23 pentaene), in ratios of,approximate to 100:100:5:5. Other minor components of pheromone gland extracts included (11Z,13E)-hexadecadienal; (11E,13Z)hexadecadienal; (11Z,13Z)-hexadecadien-1-y1 acetate; (Z)-11-hexadecenal; hexadecanal: hexadecan-1-ol; and a second pentaene, (346Z,9Z,12Z,15Z)-penta.cosapentaene (C25 pentaene). These minor components did not increase attraction of male navel orangeworm to the basic four-component blend. The use of another, cross-attracted pyralid moth, Pyratis farinalis L., as a model species was crucial in implicating the C23 pentaene as an important component of the navel orangeworm pheromone blend. The four-component navel orangeworm pheromone blend was optimized using a combination of wind tunnel and field bioassays. Attractiveness of field deployed synthetic pheromone lures decreased rapidly despite incorporation of stabilizers and use of different release devices, suggesting that degradation products antagonize male navel orangeworm responses. Overall, the combination of type I lepidopteran pheromone components consisting of Cm aldehydes and alcohols with type H components consisting of long-chain polyunsaturated hydrocarbons has now been documented in several lepidopteran species and may indicate a paradigm shift in the range of compounds that constitute sex pheromone blends for individual lepidopteran species. This suggests that careful reexamination of pheromone gland contents for both type I and type II compounds may prove fruitful in species that have been studied but for which full attractant blends have eluded identification.