Guoqing L, Zhaojun H, Lili M, Xiaoran Q, Changkun C, Yinchang W
Monitoring and Management of Plant Disease and Insect Laboratory, Plant Protection Department, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
J Insect Physiol. 2001 Sep;47(9):951-956. doi: 10.1016/s0022-1910(01)00051-8.
Observation of the oviposition behavior of cotton bollworm demonstrated the existence of substances that can act as oviposition deterrents. The scales, abdomens and tarsi of the moths, the most likely carrier, were extracted for the substances. An acetone extract exhibiting an oviposition deterrent effect was analyzed using gas chromatography and combined gas chromatography-mass spectroscopy. Three components, 4-methyl-4-hydroxyl-pentanone-2, hexadecanoic acid and (Z)-9-octadecenoic acid, were identified, being present in the ratio 1:2:2. Experiments with synthetic mixtures indicated that a mixture of equal amounts of the two organic acids exhibited similar repellent and deterrent activity to a synthetic mixture of all three components. It is concluded that the natural oviposition-deterring pheromone is a mixture of hexadecanoic acid and (Z)-9-octadecenoic acid.
对棉铃虫产卵行为的观察表明，存在可作为产卵抑制剂的物质。对最有可能作为载体的蛾子的鳞片、腹部和跗节进行提取以获取这些物质。使用气相色谱法和气相色谱 - 质谱联用分析法对具有产卵抑制作用的丙酮提取物进行分析。鉴定出三种成分，4 - 甲基 - 4 - 羟基 - 戊酮 - 2、十六烷酸和（Z）-9 - 十八碳烯酸，其比例为1:2:2。合成混合物实验表明，等量的两种有机酸混合物与所有三种成分的合成混合物表现出相似的驱避和抑制活性。得出的结论是，天然产卵抑制信息素是十六烷酸和（Z）-9 - 十八碳烯酸的混合物。
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