Insect light-dependent magnetoreception is not lost in red

VÁCHA, Martin, Markéta KVÍČALOVÁ, Pavel SLABÝ, Přemysl BARTOŠ, Radek NETUŠIL, How-Jing LEE, Olga BAZALOVÁ, Ivo ŠAUMAN a David DOLEŽEL. Insect light-dependent magnetoreception is not lost in red. In 16th Congress of the European Society for Photobiology. 2015.

Základní údaje

• Originální název: Insect light-dependent magnetoreception is not lost in red
• Autoři: VÁCHA, Martin (203 Česká republika, garant, domácí), Markéta KVÍČALOVÁ (203 Česká republika, domácí), Pavel SLABÝ (203 Česká republika, domácí), Přemysl BARTOŠ (203 Česká republika, domácí), Radek NETUŠIL (203 Česká republika, domácí), How-Jing LEE (156 Čína), Olga BAZALOVÁ (203 Česká republika), Ivo ŠAUMAN (203 Česká republika) a David DOLEŽEL (203 Česká republika).
• Vydání: 16th Congress of the European Society for Photobiology, 2015.

Další údaje

• Originální jazyk: angličtina
• Typ výsledku: Konferenční abstrakt
• Obor: 30105 Physiology
• Stát vydavatele: Česká republika
• Utajení: není předmětem státního či obchodního tajemství
• Kód RIV: RIV/00216224:14310/15:00081003
• Organizační jednotka: Přírodovědecká fakulta
• Klíčová slova anglicky: photobiology magnetoreception light navigation
• Příznaky: Mezinárodní význam, Recenzováno

Anotace

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.

Anotace česky

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.

Návaznosti

• GC13-11908J, projekt VaV: Název: Fyziologická a funkčně genetická analýza magnetorecepce na hmyzím modelu. (Akronym: Magnet)

Investor: Grantová agentura ČR, Fyziologická a funkčně genetická analýza magnetorecepce na hmyzím modelu.