Project information
Towards the neuronal basis of insect magnetoreception
- Project Identification
- GC206/07/J041
- Project Period
- 7/2007 - 6/2010
- Investor / Pogramme / Project type
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Czech Science Foundation
- International projects
- MU Faculty or unit
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Faculty of Science
- doc. RNDr. Martin Vácha, Ph.D.
- David Doležel
- Keywords
- magnetoreception insects neuroanatomy
- Cooperating Organization
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Biological Centre of the ASCR, v. v. i.
- Responsible person Doc. RNDr. Ivo Šauman, Ph.D.
Although behavioral experiments have shown that many animals can sense the Earth´s magnetic field, no neural principles of reception and processing of geomagnetic field have been identified with certainty. On vertebrates, some progress was achieved and first brain structures responding to magnetic stimulation have been positively tested. Nevertheless, the localization and the mode of transduction remain unknown. The project intends to analyze the involvement of some nervous structures of insect brain into magnetoreception. It is built on the unique possibility to behaviorally test directly in laboratory the impacts of chirurgical lesions and genetic knock-downs of selected regions and genes. The major attention will be given to cryptochromes - photosensitive proteins connecting temporal and space orientation. Their ability to produce radical pairs makes them candidates for chemical, light-dependent magnetoreception. The research on relatively simple nervous system of insects may avoid some limits of vertebrate models and shed the new light on the neuronal base of animal magnetoreception.
Publications
Total number of publications: 17
2009
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Radiofrequency magnetic fields disrupt magnetoreception in American cockroach.
Journal of Experimental Biology, year: 2009, volume: 212, edition: 21
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Využívá potemník hnědý k orientaci magnetické pole?
Year: 2009, type: Conference abstract
2008
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Ablation of Antennae Does Not Disrupt Magnetoreceptive Behavioural Reaction of the American Cockroach to Periodically Rotated Geomagnetic Field.
Neuroscience Letters, year: 2008, volume: 435, edition: 2
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Klidové pozice těla korespondují u švába amerického se severo-jižní a východo-západní geomagnetickou osou.
35. etologická konference, year: 2008
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Tenebrio beetles use magnetic inclination compass
Naturwissenschaften, year: 2008, volume: 95, edition: 8
2007
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Kompas a mapa. Orientace v geomagnetickém poli.
Vesmír, year: 2007, volume: 86, edition: 4
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Mechanizmy magnetorecepce. Jak živočichové vnímají magnetické pole Země.
Vesmír, year: 2007, volume: 86, edition: 5