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Extraocular magnetic compass in newts

机译:new中的眼外磁罗盘

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Geomagnetic orientation is widespread among organisms, but the mechanism(s) of magnetoreception has not been identified convincingly in any animal. In agreement with biophysical models proposing that the geomagnetic field interacts with photo-receptors, changes in the wavelength of light have been shown to influence magnetic compass orientation in an amphibian, an insect and several species of birds (reviewed in ref. 5). We find that light-dependent magnetic orientation in the eastern red-spotted newt, Notophthalmus viridescens, is mediated by extraocular photoreceptors, probably located in the pineal complex or deeper in the brain (perhaps the hypothalamus).
机译:地磁定向在生物体中很普遍,但是尚未在任何动物中令人信服地确定磁感受的机制。与提出地磁场与光感受器相互作用的生物物理模型相一致,已证明光波长的变化会影响两栖动物,昆虫和几种鸟类的磁罗盘方向(参见参考文献5)。我们发现东部红色斑点new,Notophthalmus viridescens中的光依赖性磁取向是由眼外感光体介导的,可能位于松果体或更深的大脑中(也许是下丘脑)。

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