A glandular gift in the German cockroach, Blattella germanica (L.) (Dictyoptera: Blattellidae):: The courtship feeding of a female on secretions from male tergal glands
A glandular gift in the German cockroach, Blattella germanica (L.) (Dictyoptera: Blattellidae):: The courtship feeding of a female on secretions from male tergal glands
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DOI：
10.1023/a:1020975619618
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发表时间：
1999-09-01
影响因子：
1
通讯作者：
Kuwahara, Y
中科院分区：
文献类型：
--
作者：
Nojima, S;Sakuma, M;Kuwahara, Y
在德国小蠊的求偶行为中，雄性会向雌性展示底甲腺，并用腺体分泌物喂养雌性，以使雌性处于适当的交配前位置。使用聚乙二醇膜法定量检测分泌物的诱食活性。第 8 个 tergite 腺体的甲醇提取物在 6 日龄的处女雌性中诱导了有效的摄食反应（EC50 = 0.0037 雄性当量/40 μg PEG 点）。然而;雌性的摄食反应和性接受之间没有时间关系。而且;除了未交配的雌性之外，提取物还引起怀孕或交配的雌性、雄性和末龄若虫的摄食反应。这些结果强烈表明，分泌物原则上可作为膳食喂养兴奋剂，但在求偶行为中作为求偶信息素发挥作用，其中兴奋剂作为结婚礼物提供。
In the courtship behavior of the German cockroach, the male presents tergal glands to the female and feeds her with glandular secretions to place her in the appropriate precopulatory position. The phagostimulant activity of the secretions was quantitatively examined using the polyethylene glycol film method. The methanol extract of the glands on the eighth tergite induced a potent feeding response in 6-day-old virgin females (EC50 = 0.0037 male equivalent/40 mu g PEG spot). However; there was no temporal relation between the feeding response and the sexual receptivity of the females. Moreover; besides virgin females, the extract induced a feeding response in gravid or mated females, males, and the last-instar nymphs. These results strongly suggest that the secretions function as a dietary feeding stimulant in principle but as a courtship pheromone in the context of courtship behavior where the stimulants are offered as a nuptial gift.