THE COMPOUND EYE OF THE TSETSE-FLY (GLOSSINA-MORSITANS-MORSITANS AND GLOSSINA-PALPALIS-PALPALIS)
THE COMPOUND EYE OF THE TSETSE-FLY (GLOSSINA-MORSITANS-MORSITANS AND GLOSSINA-PALPALIS-PALPALIS)
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DOI：
10.1016/0022-1910(89)90117-0
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发表时间：
1989-01-01
影响因子：
2.2
通讯作者：
RUDOLPH, A
中科院分区：
文献类型：
--
作者：
HARDIE, R;VOGT, K;RUDOLPH, A
本文对采采蝇Glossina moristans和G.使用解剖学，光学，生物化学和电生理技术。眼睛基本上非常类似于其他高等双翅目，如苍蝇和丽蝇。小眼组织具有典型的神经叠加眼的开放性横纹排列。中央横纹肌R7和R8的直径比周边横纹肌（R1-6）小，除了在眼的背侧边缘，在那里它们大大扩大。次生色素细胞数量异常拉格，每个小眼周围有16-18个。小平面透镜也非常厚，具有弱弯曲的外表面和强凸的内表面。它示出了如何产生的特征条纹反射从采采蝇的眼睛全内反射，并考虑了可能的功能。与大多数其他双翅目昆虫一样，视色素发色团是3-羟基视黄醇，也存在一种紫外线敏化色素3-羟基视黄醇。光感受器细胞R1-6具有与家蝇相似的光谱灵敏度，尽管绿色峰（500 nm）的位置长约10 nm。R7的两个光谱类别对应于Musca中的所谓的7 y和7 p细胞，主要具有紫外线敏感性，并且遇到的R8细胞的光谱敏感性类似于所谓的8 y细胞（.最大520 nm）。由于饮食缺乏，在猪血中饲养的苍蝇的眼睛不含C40类胡萝卜素的痕迹。这与观察到的7 y和8 y细胞的光谱灵敏度在蓝色（400-500 nm）中系统地高于蝇属或丽蝇属的对应物相关。
We have examined the retina of the tsetse fly Glossina moristans and G. palpalis using anatomical, optical, biochemical and electrophysiological techniques. The eye is basically very similar to those of other higher Diptera such as Musca and Calliphora. The ommatidial organization has an open rhabdom arrangement typical of a neural superposition eye. The central rhadomeres R7 and R8 are smaller in diameter than peripheral rhabdomeres (R1-6)except at the dorsal margin of the eye, where they are greatly enlarged. The number of secondary pigment cells is unusually lage with 16-18 surrounding each ommatidium. The facet lenses are also unusually thick with a weakly curved outer surface and a strongly convex inner surface. It is shown how this gives rise to the characteristic striped reflections from the tsetse eye by total internal reflection, and possible functions for this are considered. As in most other dipterans, the visual pigment chromophore is 3-hydroxy retinal and an ultraviolet sensitizing pigment, 3-hydroxy retinol is present also. Photoreceptor cells R1-6 have a similar spectral sensitivity to those in Musca, although the position of the green peak (500 nm) is some 10 nm longer. Two spectral classes of R7 correspond to the so-called 7y and 7p cells in Musca, with predominantly ultraviolet sensitivity, and the spectral sensitivity of the R8 cells encountered resembles that off so-called 8y cells (.lambda. max 520 nm). Due to a dietary deficiency, the eyes of flies raised on porcine blood contain no traces of C40 carotenoids. This is correlated with the observation that the spectral sensitivity of both 7y and 8y cells are systematically higher in the blue (400-500 nm) than their counterparts in Musca or Calliphora.