Marcus Wolfgang
Zoologischen Institut der Universität Göttingen, Deutschland.
Wilhelm Roux Arch Entwickl Mech Org. 1962 Jan;154(1):56-102. doi: 10.1007/BF00577777.
In the Lepidoptera the different cuticles of the caterpillar, of the pupa and of the adult are produced by the same epidermis, without regard to increase and polyploidisation of epidermis cells.By histological and morphological investigations it could be shown, which parts of the skin on an abdominal segment ofGalleria mellonella correspond to eachother in these three stages of development. A skin graft, heterotoply transplanted from one caterpillar to another as well as the experimental surroundings of that graft, do not develop corresponding to their normal prospective fate during metamorphosis. In grafting experiments a kind of regulating development takes place. The skin of the graft and its surroundings always develop by locally producing a succession of skin types which is normally to be found along the main axis of an adult segment: Morphological polarity is locally altered in grafting experiments. In the skin regions where morphological polarity is altered experimentally, the scales are no longer orientated parallel to the main axis of the body nor do they show an orientation parallel to the experimentally evoked "new segment axes". The scales show intermediate orientations. From the manner of morphological differentiation and scale orientation in the graft experiments a relationship may be concluded between the morphogenetic systems of the segmental epidermis inGalleria and of the early germ of the sea urchin.
在鳞翅目中，毛虫、蛹和成虫的不同表皮由同一表皮产生，而不考虑表皮细胞的增殖和多倍体化。通过组织学和形态学研究可以表明，在大蜡螟腹部节段的皮肤中，这三个发育阶段的哪些部分相互对应。从一只毛虫异位移植到另一只毛虫的皮肤移植及其移植的实验环境，在变态过程中不会按照其正常的预期命运发育。在移植实验中发生了一种调节发育的情况。移植的皮肤及其周围环境总是通过局部产生一系列通常在成虫节段主轴上发现的皮肤类型来发育：在移植实验中形态极性在局部发生改变。在实验性改变形态极性的皮肤区域，鳞片不再与身体主轴平行排列，也不显示与实验诱发的“新节段轴”平行的排列方向。鳞片显示出中间排列方向。从移植实验中的形态分化方式和鳞片排列方向，可以推断出大蜡螟节段表皮的形态发生系统与海胆早期胚的形态发生系统之间的关系。
