Pore canals and related structures in insect cuticle.
Pore canals and related structures in insect cuticle.
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DOI：
10.1083/jcb.10.4.589
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发表时间：
1961-08
期刊：
影响因子：
--
通讯作者：
LOCKE M
中科院分区：
文献类型：
--
作者：
LOCKE M
研究了圆粉虫幼虫、黄粉虫幼虫和蛹的角质层以及蜜蜂的分泌蜡的角质层中酯酶的精细结构和分布，并与Calpodes毛毛虫的角质层中的酯酶进行了比较。在长廊和黄粉虫中，孔道是从上皮穿过层状内角质层到外角质层的空间。它们含有来自细胞的细丝，可能与它们的形成有关。孔管的形状可能由构成内表皮中薄片的纤维的方向决定，并且不是规则的螺旋。孔道还含有许多另一种细丝，它们穿过表皮，被认为是表面蜡的来源。它们在蜜蜂分泌蜡的角质层的孔道中特别丰富，并以被质膜包膜包围的长袋延伸到细胞中。酯酶可能与蜡合成的最后阶段有关，因为它的分布与脂质丝的分布相似。
The fine structure and the distribution of an esterase have been studied in the cuticle of Galleria larvae, Tenebrio larvae and pupae, and in the wax-secreting cuticle of the honey bee, and compared with those in the cuticle of the caterpillar of Calpodes. In Galleria and Tenebrio the pore canals are spaces passing through the lamellate endocuticle from the epithelium to the epicuticle. They contain a filament from the cells which may be concerned in their formation. The shape of the pore canal is probably determined by the orientation of the fibres making up the lamellae in the endocuticle and is not a regular helix. The pore canals also contain numerous filaments of another sort which pass on through the epicuticle and are believed to be the origin of the surface wax. They are particularly abundant in the pore canals of the honey bee wax-secreting cuticle and extend into the cell in long pockets surrounded by an envelope of the plasma membrane. The esterase is probably concerned with the final stage of wax synthesis, for its distribution is similar to that of the lipid filaments.