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以狗枣猕猴桃彩叶和绿叶为实验材料,通过叶片结构及光谱学特性探讨了彩叶的呈色原因。结果显示:(1)尽管彩叶(白色和粉红色)与绿叶的颜色差异很大,但彩叶仍保持较高的叶绿素含量;(2)所有彩色叶表均无特殊结构,但其叶肉结构更疏松且与正常叶片差异显著;(3)白色叶片对红、绿和蓝光的反射均很强,而粉红色叶片对红光反射较强。此外,叶片两侧的光谱学特性也存在一些差异。基于上述研究,我们认为狗枣猕猴桃叶片呈现白色不是由于叶绿素的严重缺失,而是与特殊叶片结构导致的光反射有关;粉红色叶片的叶色一方面取决于较高的花青素含量,另一方面叶片结构可能对其叶色也有影响。
In this paper, the color leaves and green leaves of Gooseberry gooseberry were used as experimental materials. The reasons for the color development of colored leaves were discussed through the leaf structure and spectral characteristics. The results showed that: (1) Although the color of the leaves (white and pink) and the green leaves differed greatly, the color leaves maintained a high content of chlorophyll; (2) There was no special structure in all color leaves, but the leaf structure More loose and significant difference with the normal leaves; (3) white leaves on the red, green and blue light reflection are strong, and pink leaves on the red light reflection. In addition, there are some differences in the spectral characteristics of the leaves on both sides. Based on the above studies, we think that the white color of the leaves of Actinidia chinensis is not due to the serious lack of chlorophyll, but rather the light reflectance caused by the special leaf structure. On the one hand, the leaf color of pink leaves depends on the higher anthocyanin content, On the one hand the leaf structure may also have an effect on its leaf color.