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2-Nonanone is a Critical Pheromone Component for Cerambycid Beetle Species Native to North and South America
Environmental Entomology ( IF 1.7 ) Pub Date : 2021-03-01 , DOI: 10.1093/ee/nvab022
Weliton D Silva 1 , Lawrence M Hanks 2 , Judith A Mongold-Diers 2 , Anna C Grommes 2 , José Maurício S Bento 1 , Jocelyn G Millar 3
Affiliation  

An increasing body of evidence indicates that cerambycid beetles native to different continents may share pheromone components, suggesting that these compounds arose as pheromone components early in the evolution of the family. Here, we describe the identification and field testing of the pheromone blends of two species in the subfamily Cerambycinae that share 2-nonanone as an important component of their male-produced aggregation-sex pheromones, the South American Stizocera consobrina Gounelle (tribe Elaphidiini) and the North American Heterachthes quadrimaculatus Haldeman (tribe Neoibidionini). Along with 2-nonanone, males of S. consobrina also produce 1-(1H-pyrrol-2-yl)-1,2-propanedione, whereas males of H. quadrimaculatus produce 10-methyldodecanol. Field bioassays conducted in Brazil (targeting S. consobrina) and Illinois (targeting H. quadrimaculatus) demonstrated that adults of both species were attracted only by the blends of both their pheromone components, and not to the individual components. The use of the pyrrole as a critical component for the former species is further evidence that this compound is a common pheromone structure among cerambycines in different biogeographical regions of the world.

中文翻译:

2-壬酮是原产于北美和南美的天牛甲虫物种的关键信息素成分

越来越多的证据表明,原产于不同大陆的天牛甲虫可能共享信息素成分,这表明这些化合物在该家族进化的早期作为信息素成分出现。在这里,我们描述了对南美洲 Stizocera consobrina Gounelle (Elaphidiini 部落)和南美 Stizocera consobrina Gounelle 亚科 Cerambycinae 中的两个物种的信息素混合物的鉴定和现场测试,它们共享 2-壬酮作为其雄性产生的聚集性信息素的重要组成部分。北美 Heterachthes quadrimaculatus Haldeman (部落 Neoibidionini)。除了 2-壬酮,S. consobrina 的雄性还产生 1-(1H-pyrrol-2-yl)-1,2-propanedione,而 H. quadrimaculatus 的雄性产生 10-甲基十二烷醇。在巴西(针对 S. consobrina)和伊利诺伊州(针对 H. quadrimaculatus) 证明了这两个物种的成虫只被它们的两种信息素成分的混合物所吸引,而不是被单独的成分所吸引。使用吡咯作为前一种物种的关键成分进一步证明了这种化合物是世界不同生物地理区域的cerambycines中常见的信息素结构。
更新日期:2021-03-01
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