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Journal Article

Sensory cilia in arthropods


Keil,  T. A.
Baumeister, Wolfgang / Molecular Structural Biology, Max Planck Institute of Biochemistry, Max Planck Society;

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Keil, T. A. (2012). Sensory cilia in arthropods. ARTHROPOD STRUCTURE & DEVELOPMENT, 41(6), 515-534. doi:10.1016/j.asd.2012.07.001.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000E-7CC9-1
In arthropods, the modified primary cilium is a structure common to all peripheral sensory neurons other than photoreceptors. Since its first description in 1958, it has been investigated in great detail in numerous sense organs (sensilla) of many insect species by means of electron microscopy and electrophysiology. The perfection of molecular biological methods has led to an enormous advance in our knowledge about development and function of sensory cilia in the fruitfly since the end of the last century. The cilia show a wealth of adaptations according to their different physiological roles: chemoreception, mechanoreception, hygroreception, and thermoreception. Divergent types of receptors and channels have evolved fulfilling these tasks. The number of olfactory receptor genes can be close to 300 in ants, whereas in crickets slightest mechanical stimuli are detected by the interaction of extremely sophisticated biomechanical devices with mechanosensory cilia. Despite their enormous morphological and physiological divergence, sensilla and sensory cilia develop according to 3 stereotyped pattern. Intraflagellar transport genes have been found to be decisive for proper development and function. (C) 2012 Elsevier Ltd. All rights reserved.