Farnesol,a synomone component between lantana (Lamiales: Verbenaceae) and the omnivorous predator, <Emphasis Type="Italic">Campylomma chinensis</Emphasis> Schuh (Hemiptera: Miridae) |
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Authors: | Feng-Mei Ma Li-Xia Zheng Ze-Zheng Gao Wei-Jian Wu |
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Institution: | 1.Laboratory of Insect Ecology,South China Agricultural University,Guangzhou,China;2.Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province,Guangzhou,China;3.College of Agronomy,Jiangxi Agricultural University,Nanchang,China;4.South China Botanical Garden, Academic Science of China,Guangzhou,China |
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Abstract: | Flower scents are known as synomones between flowering plants and pollinators, but very little is known about the synomone involving omnivorous predator. Campylomma chinensis Schuh (Hemiptera: Miridae) is an omnivorous predator that feeds on both small soft-bodied arthropods and plant hosts including purple trailing lantana Lantana montevidensis (Spreng.) Briq. (Lamiales: Verbenaceae). In laboratory experiments, we examined the effect of fresh inflorescences and volatiles of L. montevidensis on the behavior of adult C. chinensis. In a Y-tube olfactometer, we found that the fresh inflorescences of L. montevidensis significantly attracted adult C. chinensis. Then, the volatile compounds from the fresh inflorescences of L. montevidensis were analyzed by gas chromatography coupled with mass spectrometry (GC–MS). The results showed that there were seventeen compounds detected in the inflorescences, and the main components were terpenoids including monoterpenoids and sesquiterpenoids. Moreover, the adults were significantly attracted to the concentration of 5 µl/ml farnesol. The results of the present work implied that the omnivorous mirid C. chinensis used farnesol, a sesquiterpenoid alcohol derivative, to identify and locate its plant hosts. The role of farnesol as a potential synomone for C. chinensis is discussed. |
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