Cyto- and histochemical studies of the ovariole of Panorpa communis (Insecta, Mecoptera).
The polytrophic ovarioles of Panorpa communis are differentiated into a terminal filament, germarium and vitellarium. The germarium contains cystoblasts and germ cell clusters at early stages of their differentiation. At the base of germarium the cystocytes become morphologically diversified. One of the central cells of the cluster becomes the oocyte while the remaining cystocytes differentiate into nurse cells. The presence of intercellular bridges between the oocyte and the nurse cells and those connecting the nurse cells was revealed by rhodamine-phalloidin staining of F-actin. The derivatives of one cystoblast - three nurse cells and oocyte are enveloped by follicular epithelium, thus forming the egg chamber. The follicular epithelium is morphologically diversified.
Simiczyjew
B
B
Department of General Zoology, Zoological Institute, Wroclaw University, Poland.
D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure; D004847:Epithelial Cells; D004848:Epithelium / Q000502:physiology; D005260:Female; D005854:Germ Cells / Q000502:physiology; D006651:Histocytochemistry; D007313:Insecta / Q000378:metabolism*; D008854:Microscopy, Electron; D008856:Microscopy, Fluorescence; D009865:Oocytes / Q000648:ultrastructure; D010053:Ovary / Q000166:cytology* / Q000648:ultrastructure