期刊
JOURNAL OF THE ROYAL SOCIETY INTERFACE
卷 7, 期 -, 页码 S241-S256出版社
ROYAL SOC
DOI: 10.1098/rsif.2009.0459.focus
关键词
magnetoreception; photoreception; cryptochrome; pineal; compound eye; magnetic compass
资金
- National Science Foundation, USA [IOB 07-48175]
- Direct For Biological Sciences
- Division Of Integrative Organismal Systems [0748175] Funding Source: National Science Foundation
Magnetic compass orientation by amphibians, and some insects, is mediated by a light-dependent magnetoreception mechanism. Cryptochrome photopigments, best known for their role in circadian rhythms, are proposed to mediate such responses. In this paper, we explore light-dependent properties of magnetic sensing at three levels: (i) behavioural (wavelength-dependent effects of light on magnetic compass orientation), (ii) physiological (photoreceptors/photopigment systems with properties suggesting a role in magnetoreception), and (iii) molecular (cryptochrome-based and non-cryptochrome-based signalling pathways that are compatible with behavioural responses). Our goal is to identify photoreceptors and signalling pathways that are likely to play a specialized role in magnetoreception in order to definitively answer the question of whether the effects of light on magnetic compass orientation are mediated by a light-dependent magnetoreception mechanism, or instead are due to input from a non-light-dependent (e. g. magnetite-based) magnetoreception mechanism that secondarily interacts with other light-dependent processes.
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