Spectral sensitivity of a colour changing spider.
Spectral sensitivity of a colour changing spider.
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变色蜘蛛的光谱敏感性。
DOI：
10.1016/j.jinsphys.2011.01.016
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发表时间：
2011
影响因子：
2.2
通讯作者：
Jérôme Casas
中科院分区：
文献类型：
--
作者：
Jérémy Defrize;C. Lazzari;E. Warrant;Jérôme Casas
视觉在一些蜘蛛科中起着至关重要的作用，如跳蛛科、狼蛛科和蜘蛛科，因为它涉及猎物狩猎、定向或选择底物。在thomisid Misumena vatia，其中基板颜色影响体色，视觉似乎调解形态颜色的变化。然而，我们并不知道来自底物的视觉信号的哪种成分可能被感知，也不知道M。vatia具有色觉的生理基础。因此，本研究的目的是通过测量不同对眼睛的光谱敏感性，使用电生理方法来调查这种蜘蛛物种的视觉。细胞外和细胞内的电生理记录结合选择性适应揭示了两类感光细胞的存在，一种在光谱的UV区域（约340 nm）敏感，一种在绿色区域（约520 nm）敏感。我们的结论是M. vatia具有感知环境的彩色和非彩色成分的生理潜力。
Vision plays a paramount role in some spider families such as the Salticidae, Lycosidae and Thomisidae, as it is involved in prey hunting, orientation or choice of substrate. In the thomisid Misumena vatia, for which the substrate colour affects the body colour, vision seems to mediate morphological colour changes. However, nothing is known about which component of visual signals from the substrate might be perceived, nor whether M. vatia possesses the physiological basis for colour vision. The aim of this study is thus to investigate the vision of this spider species by measuring the spectral sensitivities of the different pairs of eyes using electrophysiological methods. Extra- and intracellular electrophysiological recordings combined with selective adaptation revealed the presence of two classes of photoreceptor cells, one sensitive in the UV region of the spectrum (around 340nm) and one sensitive in the green (around 520nm) regions in the four pairs of eyes. We conclude that M. vatia possesses the physiological potential to perceive both chromatic and achromatic components of the environment.