Vision in hydrothermal vent shrimp.

Vision in hydrothermal vent shrimp.
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热液喷口虾的视觉。

DOI:
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发表时间:
2000
期刊:
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子:
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通讯作者:
S. Chamberlain
S. Chamberlain
中科院分区:
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文献类型:
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作者:
S. Chamberlain

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中大西洋海岭热液喷口的蝾螈虾有非成像眼睛,适合在非常低强度的光环境中进行光探测。比较视网膜结构之间的喷口虾和表面居住的虾成像的眼睛,和少年和成年之间的喷口虾,表明喷口虾已经从祖先,生活在明亮的周期性照明的光环境中进化而来。无论喷口虾是群居生活并具有大的背眼,还是稀疏地生活并具有大的前眼,不同物种的基本视网膜适应都是相同的。视网膜适应性变化包括屈光度的丧失、光感受器的横纹肌节和其中的光敏横纹肌节的增大、光感受器的横纹肌节的衰减、黑屏蔽色素的减少、光感受器后面的白色漫射层的发展以及横纹肌周转的丧失。
Bresiliid shrimp from hydrothermal vents on the Mid-Atlantic Ridge have non-imaging eyes adapted for photodetection in light environments of very low intensity. Comparison of retinal structures between both vent shrimp and surface-dwelling shrimp with imaging eyes, and between juvenile and adult vent shrimp, suggests that vent shrimp have evolved from ancestors that lived in a light environment with bright cyclic lighting. Whether the vent shrimp live in swarms and have large dorsal eyes or live in sparse groupings and have large anterior eyes, the basic retinal adaptations are the same across species. Retinal adaptations in adult vent shrimp include the loss of dioptrics, enlargement of both the rhabdomeral segment of the photoreceptors and the light-sensitive rhabdomere therein, attenuation of the arhabdomeral segment of the photoreceptors, reduction of black screening pigment, development of a white diffusing layer behind the photoreceptors, and the loss of rhabdom turnover.
DOI: 10.2307/1542679
发表时间: 1996
期刊: The Biological bulletin
影响因子: --
作者:
Nuckley,DJ;Jinks,RN;Battelle,BA;Herzog,ED;Kass,L;Renninger,GH;Chamberlain,SC
通讯作者: Chamberlain,SC