DIVISIONISTIC GENERATION OF SKIN HUE AND THE CHANGE OF SHADE IN THE SCALYCHEEK DAMSELFISH, POMACENTRUS-LEPIDOGENYS
DIVISIONISTIC GENERATION OF SKIN HUE AND THE CHANGE OF SHADE IN THE SCALYCHEEK DAMSELFISH, POMACENTRUS-LEPIDOGENYS
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DOI：
10.1111/j.1600-0749.1987.tb00406.x
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发表时间：
1987-01-01
期刊：
影响因子：
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通讯作者：
OSHIMA, N
中科院分区：
文献类型：
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作者：
KASUKAWA, H;OSHIMA, N
鳞颊雀鲷（Pomacentrus lepidogenys）的真皮中除了黑色素细胞和黄色素细胞外，还存在两种类型的虹膜细胞，一种是树枝状的虹膜细胞，通过廷德尔散射反射白色光线;另一种是圆形或略椭圆形的虹膜细胞，通过非理想薄膜干涉反射光谱峰较窄的蓝光至绿色光线。大部分的树枝状虹膜细胞被黄色素细胞覆盖，并位于黑色素细胞之上，从而构成了一种产生黄色或黄绿色的色素细胞单元。珠被的特征性黄绿色色调是由更多基本颜色的小贡献的复合效应产生的。在皮肤的颜色变化期间，光谱峰的位置不移位。与蓝雀鲷的虹膜不同，鳞颊雀鲷的两种类型的虹膜被发现是不活跃的。因此，黑色素细胞内色素的聚集和分散似乎是导致该物种颜色变化的主要机制。
In addition to melanophores and xanthophores, there existed two types of iridophore in the dermis of the scalycheek damselfish,Pomacentrus lepidogenys.There are dendritic iridophores which reflect white light‐rays by Tyndall scattering, and the round or somewhat ellipsoidal iridophores which reflect rays with a relatively narrow spectral peak from blue to green through the non‐ideal thin‐film interference. Most of the dendritic iridophores were covered with xanthophores and were situated over melanophores, thus constituting a kind of chromatophore unit which produces a yellow or yellowish‐green color. The characteristic yellowish‐green hue of the integument results from a compound effect of small contributions by more elementary colors. During color changes of the skin, the position of the spectral peak does not shift. Unlike the iridophores of the blue damselfish, both types of iridophore of the scalycheek damselfish were found to be inactive. It appears, therefore, that the aggregation and dispersion of pigment within the melanophores is the primary mechanism responsible for the changes in color of this species.