Ultrastructural Aspects of the Production of Extracellular Matrix Components by the Chick Embryonic Notochord in vitro
| Autor: | J. Verdú, J. Camón, E. Degollada |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Embryo
Nonmammalian Histology Notochord Chick Embryo Biology Extracellular matrix Embryonic and Fetal Development symbols.namesake Organelle medicine Animals Vesicle Golgi apparatus Embryo Mammalian Extracellular Matrix Cell biology Microscopy Electron medicine.anatomical_structure Proteoglycan embryonic structures symbols Ultrastructure biology.protein Basal lamina Anatomy |
| Zdroj: | Cells Tissues Organs. 137:114-123 |
| ISSN: | 1422-6421 1422-6405 |
| DOI: | 10.1159/000146869 |
| Popis: | The morphology of extracellular matrix (ECM) components and of the cell organelles, particularly the Golgi complex and its derived structures, implicated in the production of ECM in the chick embryonic notochord have been studied by transmission electron microscopy. Isolated notochordal fragments were cultured in suspension in liquid medium. Native striated collagen fibrils with a period of 540 Å were observed in the perinotochordal sheath. Fine granular and filamentous materials suggestive of proteoglycans have been observed in intercellular spaces and under the basal lamina of the notochordal sheath. Golgi mature vesicles with structures resembling the previously described segment-long-spacing (SLS)-like aggregates and secretory vesicles probably containing proteoglycans or condensed collagen precursors have also been observed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|