Chemical Attraction of Conspecifics in Folsomia candida (Collembola)

文献类型： 外文期刊

第一作者： Liu, Jing

作者： Liu, Jing;Wu, Donghui;Liu, Jing;Liu, Jing;Wu, Donghui

作者机构：

关键词： Springtail;aggregation behavior;chemical ecology;aggregation pheromone

期刊名称：JOURNAL OF INSECT BEHAVIOR （ 影响因子：1.309； 五年影响因子：1.174 ）

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年卷期：

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收录情况： SCI

摘要： Chemical substances excreted from individuals are regarded as chemo-sensory signals that induce aggregation in Collembola. However, chemical or physiological evidence is required to identify the chemical composition of signals responsible for aggregation behavior. Present study applied solvent extraction and gas chromatograph-mass spectrometer-computer technology to separate and identify the chemical compounds in cuticle extracts from the model Collembola species, Folsomia candida. The occurrence of aggregation behavior was confirmed by conspecific attractiveness using a trap bioassay. Eight chemical compounds were obtained from F. candida's cuticle solvent. The trap assay detected fatty acid combinations from the body extracts of F. candida that induced attractiveness behavior among conspecific individuals and small molecules with higher concentration induced repellent. However, single sensillum recordings of two thin-wall chemical receptors at the second segment of the distal position of the antenna did not receive any positive responses to fatty acids, either single or in combination. The way F. candida used fatty acid combinations as chemical signal for conspecific aggregating was discussed.

分类号： Q96

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