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Ultrastructural Studies on Gametogenesis of the Prawn Palaemon serratus (Pennant). I. Oogenesis
Author(s) -
Papathanassiou E.,
King P. E.
Publication year - 1984
Publication title -
acta zoologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.414
H-Index - 37
eISSN - 1463-6395
pISSN - 0001-7272
DOI - 10.1111/j.1463-6395.1984.tb00806.x
Subject(s) - biology , yolk , prawn , ultrastructure , oogenesis , gametogenesis , endoplasmic reticulum , cytoplasm , vitellogenesis , organelle , golgi apparatus , crustacean , lipid droplet , zoology , microbiology and biotechnology , anatomy , oocyte , embryogenesis , ecology , embryo
The oogenesis of the common prawn P. serratus is described. The reproductive cycle is annual and there is little evidence for a second spawning period. Oogenesis under the electron microscope follows a typical crustacean pattern and has been divided into seven stages according to the structure of the oocytes. The production of yolk is mainly intra‐oocytic, with a small extra‐oocytic contribution. Yolk, in the form of small granules, arises within the lamellar elements of the rough endoplasmic reticulum. These were then transformed into finely granular yolk bodies. Lipid droplets, as in other crustacean species, arise de novo in the cytoplasm and there is no association between lipids and cell organelles.