期刊
ANNUAL REVIEW OF ENTOMOLOGY
卷 67, 期 -, 页码 65-81出版社
ANNUAL REVIEWS
DOI: 10.1146/annurev-ento-033021-094437
关键词
alarm pheromone; defensive behavior; kairomone; honeydew; intraspecific communication; myrmecophily
类别
Aphid cornicles are abdominal appendages that secrete compounds with diverse ecological functions, including alarm pheromones and adhesives that impede foraging efficiency of natural enemies. The length and morphology of cornicles are associated with the ecological lifestyle and defense strategies of aphids.
Aphid cornicles are abdominal appendages that secrete an array of volatile and nonvolatile compounds with diverse ecological functions. The emission of alarm pheromones yields altruistic benefits for clone-mates in the aphid colony, which is essentially a superorganism with a collective fate. Secreted droplets also contain unsaturated triglycerides, fast-drying adhesives that can be lethal when smeared on natural enemies but more often impede their foraging efficiency. The longest cornicles have evolved in aphids that feed in exposed locations and are likely used to scent-mark colony intruders. Reduced cornicles are associated with reliance on alternative defenses, such as the secretion of protective waxes or myrmecophily. Root-feeding and gall-forming lifestyles provide protected feeding sites and are associated with an absence of cornicles. In some eusocial gall-formers, soldier morphs become repositories of cornicle secretion used to defend the gall, either as menopausal apterae that defend dispersing alatae or as sterile first instars that dispatch predators with their stylets and use comicle secretions as a construction material for gall repair. Collectively, the evidence is consistent with an adaptive radiation of derived cornicle functions molded by the ecological lifestyle of the aphid lineage.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据