Receptor cell responses in the anterior tarsi of Phytoseiulus persimilis to volatile kairomone components

Electrophysiological recordings were made of chemoreceptors on the tarsi of the first legs of the predatory mite Phytoseiulus persimilis A.-H. The high electrical resistance of the tissue (30-170 G Omega ) necessitated electrode insertion very close to chemoreceptor cells to obtain spikes of detecta...

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Bibliographic Details
Published in:Experimental & applied acarology 1991-11, Vol.13 (1), p.53-58
Main Authors: DE BRUYNE, M, DICKE, M, TJALLINGII, W. F
Format: Article
Language:English
Subjects:
Acari
Arachnida
Biochemistry. Physiology. Immunology
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Invertebrates
Laboratorium voor Entomologie
Laboratory of Entomology
Physiology. Development
Phytoseiidae
Phytoseiulus persimilis
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Summary:Electrophysiological recordings were made of chemoreceptors on the tarsi of the first legs of the predatory mite Phytoseiulus persimilis A.-H. The high electrical resistance of the tissue (30-170 G Omega ) necessitated electrode insertion very close to chemoreceptor cells to obtain spikes of detectable amplitude. Responses were obtained to two of the four known components of a volatile kairomone that is used in distant prey location. This first electrophysiological investigation of chemoreception in phytoseiid mites proves the chemoreceptive function of the tarsal receptors. However, due to extreme technical difficulties the results were too incomplete to allow comparison with investigations on the behavioral response towards the chemicals tested.
ISSN:0168-8162
1572-9702
DOI:10.1007/BF01268939