对红光时代蜂的昼夜卷吸作用和对宝石蜂的卷吸作用光谱。

IF 1.9 4区 心理学 Q3 BEHAVIORAL SCIENCES
Yifan Wang, Lijing Jin, Gregor Belušič, Leo W Beukeboom, Bregje Wertheim, Roelof A Hut
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引用次数: 0

摘要

光是大多数生物昼夜节律系统与日常环境变化保持同步的最重要环境线索。和许多其他昆虫一样,玻璃鼻蜂具有基于三色复眼的色觉,对从紫外线到绿色的光谱都很敏感。我们最近描述了一种对红色敏感的、以ocelli为基础的光感受器,但它对昼夜节律的影响尚不清楚。在这项研究中,我们研究了在长波长红色LED光暗周期下Nasonia昼夜节律光夹带的可能性,并将红光的强度表征为潜在的Zeitgeber。此外,我们测量了在不同光强度(从5·1012到4·1015光子·cm-2·s-1)和更宽波长范围(455-656 nm)下夹带的可能性,以构建相应的作用光谱,用于表征参与光夹带的所有昼夜节律光感受器。我们还对复眼中的每个波长进行了视网膜电图(ERG)记录。我们的研究结果表明,Nasonia可以在红光-暗周期下携带,而红光Zeitgeber反应背后的感觉通路可能存在于ocelli中。结合之前的研究结果,我们提出,蓝色和绿色敏感的视紫红质感光细胞在明暗周期的昼夜节律夹带和光脉冲的昼夜节律相移中都是主要的昼夜节律感光细胞,而红色敏感的感光细胞需要更高的光强度来发挥其在明暗周期昼夜节律夹带中的作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Circadian entrainment to red-light Zeitgebers and action spectrum for entrainment in the jewel wasp Nasonia vitripennis.

Circadian entrainment to red-light Zeitgebers and action spectrum for entrainment in the jewel wasp Nasonia vitripennis.

Light is the most important environmental cue for the circadian system of most organisms to stay synchronized to daily environmental changes. Like many other insects, the wasp Nasonia vitripennis has trichromatic compound eye-based colour vision and is sensitive to the light spectrum ranging from UV to green. We recently described a red-sensitive, ocelli-based photoreceptor, but its contribution to circadian entrainment remains unclear. In this study, we investigated the possibility of Nasonia circadian light entrainment under long-wavelength red LED light-dark cycles and characterized the strength of red light as a potential Zeitgeber. Additionally, we measured the possibility of entrainment under various light intensities (from 5·1012 to 4·1015 photons·cm-2·s-1) and a broader range of wavelengths (455-656 nm) to construct corresponding action spectra for characterizing all circadian photoreceptors involved in photic entrainment. We also conducted electroretinogram (ERG) recordings for each wavelength in the compound eyes. Our findings demonstrate that Nasonia can entrain under red light dark cycles, and the sensory pathway underlying the red-light Zeitgeber response may reside in the ocelli. Combined with findings from previous research, we pose that blue- and green-sensitive rhodopsin photoreceptor cells function as the major circadian photoreceptors in both circadian entrainment by light-dark cycles and circadian phase shifts by light pulses, whereas the red-sensitive photoreceptor cell requires higher light intensity for its role in circadian entrainment by light-dark cycles.

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来源期刊
CiteScore
4.80
自引率
14.30%
发文量
67
审稿时长
1 months
期刊介绍: The Journal of Comparative Physiology A welcomes original articles, short reviews, and short communications in the following fields: - Neurobiology and neuroethology - Sensory physiology and ecology - Physiological and hormonal basis of behavior - Communication, orientation, and locomotion - Functional imaging and neuroanatomy Contributions should add to our understanding of mechanisms and not be purely descriptive. The level of organization addressed may be organismic, cellular, or molecular. Colour figures are free in print and online.
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