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Glycosaminoglycans in oocytes of the abyssal teleost fish Coelorhinchus coelorhynchus Risso Istochimica dei glicosaminoglicani negli ovociti del teleosteo abissale Coelorhinchus coelorhynchus Risso

, : Glycosaminoglycans in oocytes of the abyssal teleost fish Coelorhinchus coelorhynchus Risso Istochimica dei glicosaminoglicani negli ovociti del teleosteo abissale Coelorhinchus coelorhynchus Risso. Rivista di Idrobiologia. 2001 Maggio-Dicembre; 402-3: 367-377

The oocytes of the abyssal Teleost Coelorhinchus coelorhynchus were investigated during their growth. The oocytes were covered by a single or several layers of follicular cells, in which, with histochemical methods, proteins and glucides were found. In the ooplasm, vacuoles appeared before of the yolk globules. In the initial and definitive yolk globules general proteins, tyrosine, glycoproteins, acid proteoglycans mainly with carboxylic groups were found. Using the biotilynated lectins, in the initial yolk globules only specific carbohidrates were found. In Coelorhinchus, an abyssal species, we supposed that follicular epithelium can be implicated in the vitellogenic process.

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