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@proceedings{953427,
author = {Tomanová, Kateřina and Vácha, Martin and Bazalová, Olga and Sehadová, Hana and Loesel, Rudolf and Válková, Tereza and Kvíčalová, Markéta and Bartoš, Přemysl and Šauman, Ivo and Doležel, David},
booktitle = {WORKSHOP ON ANIMAL PHYSIOLOGY AND IMMUNOLOGY BRNO},
keywords = {cryptochrome; magnetosensitivity; Periplaneta americana},
language = {eng},
title = {Cryptochrome 2 necessary for magnetosensitivity of American cockroach P. americana},
year = {2011}
}
TY - CONF
ID - 953427
AU - Tomanová, Kateřina - Vácha, Martin - Bazalová, Olga - Sehadová, Hana - Loesel, Rudolf - Válková, Tereza - Kvíčalová, Markéta - Bartoš, Přemysl - Šauman, Ivo - Doležel, David
PY - 2011
TI - Cryptochrome 2 necessary for magnetosensitivity of American cockroach P. americana
KW - cryptochrome
KW - magnetosensitivity
KW - Periplaneta americana
N2 - There are many new insights about how the animal sense for geomagnetic field might work – whether based on magnetic particles in tissues or on light perception in visual pathway - but the exact mechanism of reception and transmission has not yet been clarified. In our work, we addressed the question of the role of Cryptochrome in compass sense of insects. Cryptochromes (CRYs) are molecules found in retina both vertebrates and invertebrates - among other things directly involved in controlling of circadian rhythms. In our tests, we worked with a cockroach Periplaneta americana which has the only vertebrate-like type of cryptochrom, CRY2. We combined molecular genetic approaches (RNAi gene silencing) with a behavioral assay (studying movement activity of cockroaches in changing magnetic field). Cockroaches were injected with CRY dsRNA and, 15 days later, they underwent an assay. Treated animals not only lost their circadian rhythmicity, but they were not able to perceive the magnetic field changes. The results give further evidence that in cockroaches, the Cryptochrom 2 is the key molecule involved in light-based magnetosensitivity.
ER -
TOMANOVÁ, Kateřina, Martin VÁCHA, Olga BAZALOVÁ, Hana SEHADOVÁ, Rudolf LOESEL, Tereza VÁLKOVÁ, Markéta KVÍČALOVÁ, Přemysl BARTOŠ, Ivo ŠAUMAN a David DOLEŽEL. Cryptochrome 2 necessary for magnetosensitivity of American cockroach P. americana. In \textit{WORKSHOP ON ANIMAL PHYSIOLOGY AND IMMUNOLOGY BRNO}. 2011.
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