Ultrastructural observations on the development of male gametes in Allostoma sp. (Plathelminthes,Prolecithophora) |
| |
| Authors: | Lanfranchi Alberto |
| |
| Affiliation: | (1) Department of Ethology, Ecology and Evolution, University of Pisa, via A. Volta 6, I-56126 Pisa, Italy |
| |
| Abstract: | In the prosobranch snail Littorina littorea (L., 1758) the ultrastructure of the prostate gland cells (pgc) in males and the altered glandular epithelium of the pallial oviduct of females in intersex stage 3 is compared. Regarding form, structure, organelles and secretory products the pgc in males are identical with the corresponding gland cells of the females. Consequently these results demonstrate that in females of intersex stage 3 the epithelium of the pallial oviduct, which originally consists of several (3) glandular parts, is transformed into a male prostate gland. |
| |
| Keywords: | Littorina littorea prostate gland histology intersex female stage 3 |
| 本文献已被 SpringerLink 等数据库收录！ |
|
