THE ROLE OF SEX-PHEROMONES IN INITIATION OF COPULATORY-BEHAVIOR BY MALE TSETSE FLIES, GLOSSINA-MORSITANS-MORSITANS
THE ROLE OF SEX-PHEROMONES IN INITIATION OF COPULATORY-BEHAVIOR BY MALE TSETSE FLIES, GLOSSINA-MORSITANS-MORSITANS
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DOI：
10.1111/j.1365-3032.1980.tb00232.x
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发表时间：
1980-01-01
影响因子：
1.5
通讯作者：
COATES, TW
中科院分区：
文献类型：
--
作者：
HUYTON, PM;LANGLEY, PA;COATES, TW
以合成的15，19，23-三甲基庚烷为诱饵，诱导成虫对各种诱饵的交配反应，条件是诱饵的形状和大小与雌蝇相似。化学和构型(形状和质地)刺激在诱导和维持雄性交配行为方面很重要。7日龄试验雄虫的ED95为2微克，以15，19，23-三甲基七碳十八烷为诱饵，用溶剂洗涤的死雄虫为诱饵，获得剂量/反应关系。该化合物在5日龄雌性成虫中的含量为4.0微克，而在雄性幼虫中仅为0.6微克。它具有该物种真正的接触性信息素的特征，并且不与其他刺激性较弱的合成化合物协同作用。气相色谱分析表明，在C37和C38之间有两个大的峰，而这两个峰在雄性中几乎没有。青壮年男女都有一系列低于C29的碳氢化合物，这些碳氢化合物在成年后的头几天就消失了。这种天然信息素在羽化前2天出现在雌蜂身上，并存在于整个生命过程中。它可能是表面角质蜡的一种成分。在定期喂食的果蝇中，雄蝇对信息素诱饵的反应性在羽化后3-4天达到最大值，仅在饥饿死亡前24小时内下降。
Copulatory responses to a variety of decoy objects baited with synthetic 15,19,23-trimethylheptatriacontane were induced in adult male G. m. morsitans Westw., provided the object was of similar shape and size to a female fly. Chemical and configurational (shape and texture) stimuli were important in eliciting and maintaining copulatory behavior of males. A dose/response relationship was obtained from 7 day old test males, with an ED95 of 2 .mu.g using as decoys solvent-washed dead males baited with 15,19,23-trimethylheptatriacontane. The quantity of this compound in 5 day old adult females is > 4.0 .mu.g, in males only 0.6 .mu.g. It has the characteristics of a true contact sex pheromone for the species and does not act synergistically with other less stimulatory synthetic compounds. Gas chromatographic analysis of adult female cuticular paraffins of G. m. morsitans showed the presence of 2 large peaks between C37 and C38 which were virtually absent in males. Young adults of both sexes possessed a series of hydrocarbons below C29 which disappeared during the 1st few days of adult life. The natural pheromone appears on the pharate adult female about 2 days before emergence from the puparium and is present throughout life. It is probably a component of the surface cuticular waxes. Responsiveness of males to pheromone-baited decoys increased to a maximum 3-4 days after emergence in regularly fed flies and only declined during the 24 h prior to death from starvation.