2015
Insect light-dependent magnetoreception is not lost in red
VÁCHA, Martin; Markéta KVÍČALOVÁ; Pavel SLABÝ; Přemysl BARTOŠ; Radek NETUŠIL et. al.Basic information
Original name
Insect light-dependent magnetoreception is not lost in red
Authors
VÁCHA, Martin (203 Czech Republic, guarantor, belonging to the institution); Markéta KVÍČALOVÁ (203 Czech Republic, belonging to the institution); Pavel SLABÝ (203 Czech Republic, belonging to the institution); Přemysl BARTOŠ (203 Czech Republic, belonging to the institution); Radek NETUŠIL (203 Czech Republic, belonging to the institution); How-Jing LEE (156 China); Olga BAZALOVÁ (203 Czech Republic); Ivo ŠAUMAN (203 Czech Republic) and David DOLEŽEL (203 Czech Republic)
Edition
16th Congress of the European Society for Photobiology, 2015
Other information
Language
English
Type of outcome
Conference abstract
Field of Study
30105 Physiology
Country of publisher
Czech Republic
Confidentiality degree
is not subject to a state or trade secret
RIV identification code
RIV/00216224:14310/15:00081003
Organization unit
Faculty of Science
Keywords in English
photobiology magnetoreception light navigation
Tags
International impact, Reviewed
Changed: 9/9/2015 17:33, doc. RNDr. Martin Vácha, Ph.D.
In the original language
Impacts of light on animal magnetoreception define properties of biochemical reactions sensitive to magnetic field of the Earth. We have tested insect behavioral reactions to directional magnetic stimuli mediated likely by mammalian Cry2 under 10 wavelengths from UV 365 nm to red 662 nm under different intensities of light. As predicted, we have found a reception under UV and blue lights. A steep decline of magnetic sensitivity just following 505 nm green was recorded. In contradiction with expectations, after a limited gap at around 540 nm, magnetoreception appeared again in yellow light 590 nm, persisted in red 635 nm and finally disappeared in 662 nm lights. We discuss possibilities whether and how radical pair machanism may still be involved in magnetoreception in wavelengths longer than absorption limit of FADox. The idea of two cooperating/antagonistic photosystems suggested previosly for some magnetic compass phenomena is discussed as well. The work was supported by Czech Grant Agency grant GA13-11908J.
In Czech
Impacts of light on animal magnetoreception define properties of biochemical reactions sensitive to magnetic field of the Earth. We have tested insect behavioral reactions to directional magnetic stimuli mediated likely by mammalian Cry2 under 10 wavelengths from UV 365 nm to red 662 nm under different intensities of light. As predicted, we have found a reception under UV and blue lights. A steep decline of magnetic sensitivity just following 505 nm green was recorded. In contradiction with expectations, after a limited gap at around 540 nm, magnetoreception appeared again in yellow light 590 nm, persisted in red 635 nm and finally disappeared in 662 nm lights. We discuss possibilities whether and how radical pair machanism may still be involved in magnetoreception in wavelengths longer than absorption limit of FADox. The idea of two cooperating/antagonistic photosystems suggested previosly for some magnetic compass phenomena is discussed as well. The work was supported by Czech Grant Agency grant GA13-11908J.
Links
| GC13-11908J, research and development project |
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