STRUCTURE OF BUTTERFLY SCALES - PATTERNING IN AN INSECT CUTICLE
STRUCTURE OF BUTTERFLY SCALES - PATTERNING IN AN INSECT CUTICLE
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DOI：
10.1002/jemt.1070270509
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发表时间：
1994-04-01
影响因子：
2.5
通讯作者：
GHIRADELLA, H
中科院分区：
文献类型：
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作者：
GHIRADELLA, H
所有的蝴蝶和蛾的鳞片和刚毛都是由非生命昆虫的角质层组成的。每一种都是单个上皮细胞的产物，并且都具有相同的基本结构。然而，有些是高度专业化的，它们的角质层被进一步加工成薄膜，晶格或其他微小结构的堆叠，其中许多首先引起我们的注意，因为它们与光相互作用产生结构色。鳞片细胞通过突出自身并在其周围分泌外上表皮形成鳞片，外上表皮是形成鳞片最外层的薄角质层。角质层的内层，统称为原角质层，随后分泌并继续形成鳞片的晶格，支柱或其他内部结构。我们相信，细胞用来将角质层塑造成其最终形式的模式形成机制包括外上表皮的弹性屈曲以产生外部褶皱，以及原始上表皮包膜的某些区域的“掩蔽”以产生薄点，这些薄点将突破成为窗口。尽管它们是不同的，所有的昆虫表皮模式有共同的基本元素，这表明我们的研究结果可以推广到其他高度模式化的昆虫表皮，特别是那些由单细胞形成的表皮。(C)1994 Wiley-Liss，Inc.
All butterfly and moth scales and bristles are made of non-living insect cuticle. Each is the product of a single epithelial cell, and all share the same basic architecture. However, some are highly specialized, and their cuticle is further elaborated into stacks of thin-films, lattices, or other minute structures, many of which first came to our attention because they interact with light to produce structural colors. The scale cell forms the scale by extruding a projection of itself and secreting around it the outer epicuticle, a thin cuticular envelope which will form the outermost layer of the scale. The inner layers of cuticle, collectively called the procuticle, are secreted thereafter and go on to form the lattices, pillars, or other internal structures of the scale. We believe that the pattern-forming mechanisms used by the cell to shape the cuticle into its finished form include elastic buckling of the outer epicuticle to produce external folds, and ''masking'' of certain areas of the original epicuticular envelope to produce thin spots which will break through to become windows. Varied though they be, all insect cuticular patterns have common basic elements, which suggests that our findings may be generalized to other highly patterned insect cuticles, particularly those formed by single cells. (C) 1994 Wiley-Liss, Inc.