Identification of the Sex Pheromone of the Mealybug Dysmicoccus grassii Leonardi
Identification of the Sex Pheromone of the Mealybug Dysmicoccus grassii Leonardi
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DOI：
10.1021/jf304065d
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发表时间：
2012-12-05
影响因子：
6.1
通讯作者：
Primo, Jaime
中科院分区：
文献类型：
--
作者：
de Alfonso, Ignacio;Hernandez, Estrella;Primo, Jaime
对加那利群岛香蕉品种的主要害虫——粗粉蚧（Dysmicoccus grassi）的性信息素的研究表明，(-)-(R)-丙酸薰衣草酰和乙酸酯以6:1的比例是其主要成分。挥发性收集和GC-MS分析从处女雌性曝气允许化合物的结构阐明。在竞争性培养皿生物测定中，通过粉蚧雄虫对合成标准物的相对吸引力确定了这两种物质的活性和立体化学性质。(R)-丙酸薰衣草柳酯比(R)-乙酸薰衣草柳酯具有更强的吸引效应。在原始来源比例下，两种化合物混合的吸引力与单个化合物单独加起来的吸引力没有统计学上的显著差异，这表明两种成分不是协同作用而是相加的。
Studies about the sex pheromone of the mealybug Dysmicoccus grassii, a main pest of Canary Islands banana cultivars, showed strong evidence that (-)-(R)-lavandulyl propionate and acetate in a 6:1 ratio are principal components of it. Volatile collection and GC-MS analysis from aeration of virgin females allowed the structural elucidation of the compounds. The activity and stereochemistry of both substances were established by means of relative attraction of mealybug males to synthetic standards in competitive Petri dish bioassays. (R)-Lavandulyl propionate induced a stronger attractive effect when compared to (R)-lavandulyl acetate. The attractiveness of the mixture of the two compounds at the original source ratio showed no statistically significant difference from that of the sum of each of the single compounds alone, suggesting that both components are not synergistic but additive.