Morphology of the olfactory system in the predatory mite Phytoseiulus Persimilis |
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| Authors: | Michiel van Wijk Wytse J Wadman Maurice W Sabelis |
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| Institution: | (1) Institute for Biodiversity and Ecosystem Dynamics, Section Population Biology, University of Amsterdam, Kruislaan 320, 1098, SM, Amsterdam, The Netherlands;(2) Swammerdam Institute for Life Sciences, Centre for Neuroscience, University of Amsterdam, Kruislaan 320, 1098, SM, Amsterdam, The Netherlands |
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| Abstract: | The predatory mite Phytoseiulus persimilis locates its prey, the two-spotted spider mite, by means of herbivore-induced plant volatiles. The olfactory response to this
quantitatively and qualitatively variable source of information is particularly well documented. The mites perform this task
with a peripheral olfactory system that consists of just five putative olfactory sensilla that reside in a dorsal field at
the tip of their first pair of legs. The receptor cells innervate a glomerular olfactory lobe just ventral of the first pedal
ganglion. We have made a 3D reconstruction of the caudal half of the olfactory lobe in adult females. The glomerular organization
as well as the glomerular innervation appears conserved across different individuals. The adult females have, by approximation,
a 1:1 ratio of olfactory receptor cells to olfactory glomeruli. |
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| Keywords: | Acari Olfaction Phytoseiulus persimilis 3D reconstruction Glomerulus CLSM |
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