麦红吸浆虫的性信息素

Sex pheromone of orange wheat blossom midge, Sitodiplosis mosellana.

作者信息

Gries R, Gries G, Khaskin G, King S, Olfert O, Kaminski L A, Lamb R, Bennett R

机构信息

Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.

出版信息

Naturwissenschaften. 2000 Oct;87(10):450-4. doi: 10.1007/s001140050757.

DOI:10.1007/s001140050757

PMID:11129944

Abstract

Pheromone extract of the female orange wheat blossom midge, Sitodiplosis mosellana (Géhin) (SM) (Diptera: Cecidomyiidae), was analyzed by coupled gas chromatographic-electroantennographic detection (GC-EAD) and GC-mass spectrometry (MS), employing fused silica columns coated with DB-5, DB-210, DB-23 or SP-1000. These analyses revealed a single, EAD-active candidate pheromone which was identified as 2,7-nonanediyl dibutyrate. In experiments in wheat fields in Saskatchewan, traps baited with (2S,7S)-2,7-nonanediyl dibutyrate attracted significant numbers of male SM. The presence of other stereoisomers did not adversely affect trap captures. Facile synthesis of stereoisomeric 2,7-nonanediyl dibutyrate will facilitate the development of pheromone-based monitoring or even control of SM populations.

摘要

采用涂有DB-5、DB-210、DB-23或SP-1000的熔融石英柱，通过气相色谱-触角电位检测联用仪（GC-EAD）和气相色谱-质谱联用仪（GC-MS）对雌性麦红吸浆虫（Sitodiplosis mosellana (Géhin)，简称SM）（双翅目：瘿蚊科）的性信息素提取物进行了分析。这些分析揭示了一种单一的、具有触角电位活性的候选性信息素，经鉴定为2,7-壬二醇二丁酸酯。在萨斯喀彻温省麦田进行的实验中，用(2S,7S)-2,7-壬二醇二丁酸酯诱捕的诱捕器捕获了大量雄性麦红吸浆虫。其他立体异构体的存在并未对诱捕器的捕获量产生不利影响。立体异构的2,7-壬二醇二丁酸酯的简便合成将有助于基于性信息素的麦红吸浆虫种群监测甚至防治的发展。