Abstract:
Deals with the cyclic changes as observed in the activity of median A cells in the brain of female Philosamia ricini during mating and oviposition. It also shows the evidence of direct release of neurosecretory material from A1 cells. All the cells are observed to be in active phase of synthesis and release in the female just before copulation. Hence these cells contain sparse granulation at this stage. Copulation seems to produce an inhibiting effect and the cells are now in inactive phase and filled with neurosecretory material. An active release of the material has been observed in the cell after copulation. During has been oviposition, A2 and A3 cell are inactive, while A1 cells are in active phase of synthesis. After ovipostion, the cells are in very active phase of release of neurosecretory material. Among A1 cells, the release place directly from of the neurosecretory cell body, while A2 and A3 cells release their material through the axonal transport.
Page(s):
289-297
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Zoology, Volume: 17, Issue: 3, Year: 1985