Mucus characterisation in the Octopus vulgaris skin throughout its life cycle

摘要: The development of the epidermis octopus, Octopus vulgaris, throughout its life cycle was studied by conventional staining and histochemical techniques using lectins. mantle, arm two parts suckers: infundibulum acetabulum were analysed independently. With exception suckers, general morphology does not vary from first days post-hatching to adulthood. In terms, do indicate changes in composition glycoconjugates main cells, epithelial secretory cells. cells mantle show positivity for mannose (ConA+) their apical portions, indicating presence n-glycoproteins that, among other things, provide lubrication surface body. contains sulphated glycosaminoglycans N-acetylglucosamine type that adhesive properties. addition observing three types mucocytes, m1 m2 are characteristic arm, m3 is found suckers. paralarva characterised Kolliker's organs whose exact function unknown. this study, absence with alcian blue/periodic acid-Schiff(AB/PAS) prevents possibility attributing a function. Nevertheless, linkage lectins (WGA, LEL GSL-I) fascicle organ suggests proteoglycans rich would mainly have structural role.