ISSN:
1573-5117
Keywords:
Platyhelminthes
;
ultrastructure
;
germocytes
;
vitellocytes
;
spermatozoa
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Fine-structural features of female germ cells differentiating within the germaria of Otoplanella baltica and Notocaryoplanella glandulosa are documented and compared with those of other free-living platyhelminths having ectolecithal eggs. In these species, encompassed in the taxon Proseriata Lithophora, insemination of the germocytes occurs within the germaria. A sperm cell, that has penetrated a germocyte differs in special features from mature male germ cells found in the testes, in parts of the male genital system, or even in other regions of the organism. The hypothesis that dense bodies correspond to acrosomal material is supported.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00046240
Permalink
