Considerations on some cytological and ultrastructural observations on fat cells ofDaphnia(Crustacea, Cladocera)
| Autor: | Cristina Zeni, Fulvio Zaffagnini |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
food.ingredient
biology Glycogen Endoplasmic reticulum Golgi apparatus Oocyte biology.organism_classification Daphnia Cell biology Vitellogenin chemistry.chemical_compound symbols.namesake food medicine.anatomical_structure chemistry Yolk Botany biology.protein symbols medicine Animal Science and Zoology Vitellogenesis |
| Zdroj: | Bollettino di zoologia. 53:33-39 |
| ISSN: | 0373-4137 |
| DOI: | 10.1080/11250008609355480 |
| Popis: | The fat cells of females of Daphnia obtusa have a well developed rough endoplasmic reticulum, free ribosomes and small Golgi complexes. When the ovaries contain growing parthenogenetic oocytes, the fat cells show few scattered glycogen granules, whereas they show abundant glycogen when the ovaries contain one vitellogenic amphigonic oocyte. The latter case could be explained by the fact that the fat cells synthesize little vitellogenin since the yolk of amphigonic oocytes is mostly endogenous. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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