An electromagnetic field disrupts negative geotaxis in Drosophila via a CRY-dependent pathway.
An electromagnetic field disrupts negative geotaxis in Drosophila via a CRY-dependent pathway.
复制标题
电磁场通过哭泣的依赖性途径破坏了果蝇中的负岩石。
DOI:
10.1038/ncomms5391
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发表时间:
2014-07-14
影响因子:
16.6
通讯作者:
Kyriacou, Charalambos P.
中科院分区:
文献类型:
--
作者:
Fedele, Giorgio;Green, Edward W.;Rosato, Ezio;Kyriacou, Charalambos P.
Many higher animals have evolved the ability to use the Earth’s magnetic field, particularly for orientation. Drosophila melanogaster also respond to electromagnetic fields (EMFs), although the reported effects are quite modest. Here we report that negative geotaxis in flies, scored as climbing, is disrupted by a static EMF, and this is mediated by cryptochrome (CRY), the blue-light circadian photoreceptor. CRYs may sense EMFs via formation of radical pairs of electrons requiring photoactivation of flavin adenine dinucleotide (FAD) bound near a triad of Trp residues, but mutation of the terminal Trp in the triad maintains EMF responsiveness in climbing. In contrast, deletion of the CRY C terminus disrupts EMF responses, indicating that it plays an important signalling role. CRY expression in a subset of clock neurons, or the photoreceptors, or the antennae, is sufficient to mediate negative geotaxis and EMF sensitivity. Climbing therefore provides a robust and reliable phenotype for studying EMF responses in Drosophila. The earth’s electromagnetic field has a modest effect on the behaviour of Drosophila melanogaster. Here, Fedele et al. use an assessment of climbing behaviour to describe how the blue-light circadian photoreceptor cryptochrome mediates a negative movement response to gravity in flies.
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DOI:
10.1098/rsif.2013.0638
发表时间:
2013-11-06
期刊:
Journal of the Royal Society, Interface
影响因子:
--
作者:
Nießner C;Denzau S;Stapput K;Ahmad M;Peichl L;Wiltschko W;Wiltschko R
通讯作者:
Wiltschko R
影响因子:
--
作者:
Möller, A;Sagasser, S;Schierwater, B
通讯作者:
Schierwater, B
影响因子:
64.8
作者:
Grima, B;Chèlot, E;Rouyer, F
通讯作者:
Rouyer, F
影响因子:
4.8
作者:
Biskup, Till;Paulus, Bernd;Schleicher, Erik
通讯作者:
Schleicher, Erik
影响因子:
16.6
作者:
Foley, Lauren E.;Gegear, Robert J.;Reppert, Steven M.
通讯作者:
Reppert, Steven M.