Spermatogenesis and spermiogenesis in Didymocystis wedli Ariola, 1902 (Didymozoidae, Digenea)
Mem. Inst. Oswaldo Cruz
;
96(8): 1153-1159, Nov. 2001. ilus
Article
in English
| LILACS
| ID: lil-304662
ABSTRACT
The ultrastructure of the male reproductive system of Didymocystis wedli was studied for the first time, demonstrating spermiogenesis and spermatogenesis at different cell stages. The spermatozoa morphology was compared with that of other Digenea species. It was observed that the different cells of the spermatogenesis process follow the classic pattern reported for the majority of the parasitic platyhelminthes. During spermiogenesis, rootlet fibers, electrondense bodies and median cytoplasmic process were not observed. The mature spermatozoa of D. wedli were filiform, presenting nucleus, mitochondrion and two 9+1 axonemes, with a biflagellate distal extremity
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Index:
LILACS (Americas)
Main subject:
Spermatogenesis
/
Spermatozoa
/
Trematoda
Limits:
Animals
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2001
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Instituto Oswaldo Cruz-Fiocruz/BR
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