Mishra Monalisa, Nayak Nibedita, Sahoo Harekrushna
Neural Developmental Biology Lab, Department of Life Science, NIT Rourkela, Rourkela, Odisha, 769008, India.
Neural Developmental Biology Lab, Department of Life Science, NIT Rourkela, Rourkela, Odisha, 769008, India.
Tissue Cell. 2017 Dec;49(6):648-656. doi: 10.1016/j.tice.2017.09.001. Epub 2017 Sep 13.
Butterflies and moths develop highly ordered coloration in their wing for signal transmission. We have investigated the ultrastructural arrangement of wing coloration of a moth Asota caricae, applying light, optical polarized, and scanning electron microscopy, and spectrophotometry. The forewing of the moth is brown in color with a white spot at the center. The hindwing is golden yellow in color with many black patches in it. The ventral part of the forewing and dorsal hindwing share the similar color pattern. The ventral part of the hindwing has dull coloration in comparison to the dorsal one although the pattern remains same. The spectrometry analysis reveals various patterns of absorbance and reflectance spectra for various colors. The peak observed for various colors remain same although the intensity of peak changes. Bright colors possess highly ordered structures whereas irregular structures are found in dull colored scales. The color variation observed due to dorsal and ventral part of the wing is due to the minute difference observed in terms of ultrastructural arrangement revealed by scanning electron microscope. The color pattern of A. caricae is due to variation of microstructures present within the scale.
蝴蝶和飞蛾翅膀上会形成高度有序的色彩用于信号传递。我们运用光学显微镜、光学偏光显微镜、扫描电子显微镜和分光光度法，研究了一种飞蛾——卡氏波眼蝶（Asota caricae）翅膀色彩的超微结构排列。该飞蛾的前翅为棕色，中央有一个白色斑点。后翅为金黄色，上面有许多黑色斑块。前翅腹面和后翅背面具有相似的色彩图案。后翅腹面与背面相比颜色较暗，不过图案相同。光谱分析揭示了不同颜色的吸光度和反射光谱的各种模式。尽管峰值强度有所变化，但不同颜色观察到的峰值保持不变。鲜艳颜色的鳞片具有高度有序的结构，而暗淡颜色的鳞片则具有不规则结构。观察到翅膀腹面和背面颜色的差异，是由于扫描电子显微镜所揭示的超微结构排列存在细微差异。卡氏波眼蝶的色彩图案是由鳞片内微观结构的变化所致。
