title: Geraniol, E-3,7-dimethyl-2,6-octadien-1-ol, as the alarm pheromone of the sycamore lace bug Corythucha ciliata (Say).
abstract: Although adult sycamore lace bugs Corythucha ciliata (Say) show no sign of aggregation, nymphs at all developing stages are gregarious. When an individual nymph in the center of a colony was squashed with a needlepoint, proximate nymphs showed evasive behavior. The same evasive reaction was produced by exposing aggregated nymphs to nymph hexane extract. The active component, E-3,7-dimethyl-2,6-octadien-1-ol, geraniol, was responsible for the evasive behavior, and identified as the alarm pheromone. One nanogram of the alarm pheromone elicited activity similar to that in a third instar nymph. Presence of 2-acylcyclohexane-1,3-diones and their 4-hydroxy analogues are reconfirmed as nymph-specific components, though their biological significance remains unknown.
authors.affiliation: Kyoto Gakuen University, Kameoka, Japan.
authors.forename: Yasumasa
authors.initials: Y
authors.lastname: Kuwahara
authors.forename: Akihiro
authors.initials: A
authors.lastname: Kawai
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Shimizu
authors.forename: Susumu
authors.initials: S
authors.lastname: Tokumaru
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ueyama
mesh_terms: D000080462:Acyclic Monoterpenes; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D002849:Chromatography, Gas; D006430:Hemiptera / Q000187:drug effects*; D009758:Nymph / Q000187:drug effects; D010675:Pheromones / Q000032:analysis / Q000737:chemistry / Q000494:pharmacology*; D013729:Terpenes / Q000032:analysis / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000080462:Acyclic Monoterpenes; D010675:Pheromones; D013729:Terpenes; C007836:geraniol
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