Borg-Karlson Anna-Karin, Tengö Jan, Valterová Irena, Unelius C Rikard, Taghizadeh Timo, Tolasch Till, Francke Wittko
Department of Chemistry, Organic Chemistry, The Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
J Chem Ecol. 2003 Jan;29(1):1-14. doi: 10.1023/a:1021964210877.
Enantiomerically pure (S)-(+)-linalool was the main constituent in the extracts of the cephalic secretions of virgin females, mated females, freshly emerged males, and patrolling males of the solitary bee Colletes cunicularius. After copulation, the content of (S)-(+)-linalool emitted by the female was strongly reduced. Electrophysiological experiments revealed that both enantiomers of linalool elicited responses from the antennae of the males. Field tests using the pure enantiomers and the racemate of linalool showed that the number of male bees attracted was highest for (S)-(+)-linalool. The search flight activity in the mating flight area increased dramatically when patrolling males were presented with (S)-(+)-linalool vs (R)-(-)-linalool. Taken together, these data indicate a mate attractant pheromone function of (S)-(+)-linalool.
对映体纯的(S)-(+)-芳樟醇是独居蜜蜂穴居集蜂未交配雌蜂、交配雌蜂、新羽化雄蜂和巡逻雄蜂头部分泌物提取物中的主要成分。交配后，雌蜂释放的(S)-(+)-芳樟醇含量大幅降低。电生理实验表明，芳樟醇的两种对映体均能引起雄蜂触角的反应。使用芳樟醇的纯对映体和外消旋体进行的田间试验表明，(S)-(+)-芳樟醇吸引的雄蜂数量最多。当向巡逻雄蜂呈现(S)-(+)-芳樟醇与(R)-(-)-芳樟醇时，交配飞行区域内的搜索飞行活动显著增加。综上所述，这些数据表明(S)-(+)-芳樟醇具有配偶吸引信息素的功能。
