Novel and highly specific transport of a volatile sex pheromone by hemolymph lipophorin in moths
Novel and highly specific transport of a volatile sex pheromone by hemolymph lipophorin in moths
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DOI：
10.1007/s001140050511
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发表时间：
1998-07-01
影响因子：
--
通讯作者：
Cardé, RT
中科院分区：
文献类型：
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作者：
Schal, C;Sevala, V;Cardé, RT
动物已经进化出复杂的化学通讯系统，包括用于配偶招募的挥发性信息素，以及在接触时引起求爱和交配的表皮成分（Cardé和Minks 1997）。在大多数昆虫中，性信息素是由专门的信息素腺体产生和释放的，在雌蛾中，这些腺体通常构成靠近雌蛾产卵器的表皮层（Percy-Cunningham和Mac-Donald 1987）。这些腺体从头合成信息素混合物的所有组分（Bjostad等人，1987; Jurenka和Roelofs 1993），尽管信息素输出到外部的机制仍然未知，但这些亲脂性化合物可能需要很少的与水性环境的相互作用。在这里，我们报告说，在Holomelina虎蛾（鳞翅目：Artiidae）信息素合成的组织与腹部珠被，脂蛋白，一种多功能的血浆脂蛋白，运输信息素的腹部腺体，存储和释放信息素只有在积极的呼叫行为。我们认为，这样的运输途径是常见的，不仅在昆虫中，发出碳氢化合物信息素，但也在昆虫中，隔离疏水性植物来源的metabolites.Species属内Holomelina发出信息素混合物的正常和2-甲基支链烷烃的链长范围从16至19个碳。几个物种的主要信息素成分是2-甲基十七烷（2 Me-17：Hy），在田间试验中吸引雄性（Roelofs和Cardé 1971; Schal和Cardé 1985）。In H.与其他北极熊科动物一样，信息素从第8和第9腹节之间的成对管状腺体中散发（Yin et al. 1991）。两个独立的观察使我们测试的假设，信息素是不是顺-
Animals have evolved sophisticated chemical communication systems, including volatile sex pheromones that are used in mate recruitment, and cuticular constituents that elicit courtship and copulation upon contact (Cardé and Minks 1997). In most insects sex pheromones are produced in and emitted from specialized pheromone glands, and in female moths these glands generally constitute an epidermal layer near the female’s ovipositor (Percy-Cunningham and Mac-Donald 1987). These glands synthesize de novo all the components of the pheromone blend (Bjostad et al. 1987; Jurenka and Roelofs 1993), and although mechanisms of pheromone export to the exterior remain unknown, these lipophilic compounds presumably require little if any interaction with an aqueous environment. Here we report that in Holomelina tiger moths (Lepidoptera: Arctiidae) pheromone is synthesized by tissues associated with the abdominal integument, and that lipophorin, a multifunctional plasma lipoprotein, transports the pheromone to an abdominal gland that stores and releases the pheromone only during active calling behavior. We suggest that such transport pathways are common not only among insects that emit hydrocarbon pheromones but also among insects that sequester hydrophobic plant-derived metabolites.Species within the genus Holomelina emit pheromone blends of normal and 2-methyl-branched alkanes ranging in chain length from 16 to 19 carbons. The main pheromone component of several species is 2-methylheptadecane (2Me-17: Hy) which attracts males in field assays (Roelofs and Cardé 1971; Schal and Cardé 1985). In H. lamae, as in other arctiids, the pheromone emanates from paired tubular glands that vent between the 8th and 9th abdominal segments (Yin et al. 1991). Two independent observations led us to test the hypothesis that pheromone is not syn-