Sperm ultrastructure of the digenean Siphoderina elongata (Platyhelminthes, Cryptogonimidae) intestinal parasite of Nemipterus furcosus (Pisces, Teleostei).
Parasitol Res
; 105(1): 87-95, 2009 Jul.
Article
in En
| MEDLINE
| ID: mdl-19221793
ABSTRACT
The ultrastructure of the spermatozoon of Siphoderina elongata was studied by transmission electron microscopy. A description and drawings of the mature spermatozoon are presented in this paper. Several ultrastructural elements of this male gamete have been observed a nucleus, two mitochondria, two axonemes of 9 + "1" pattern, external ornamentation of the plasma membrane, spine-like bodies and cortical microtubules. The presence, the location or the number of these elements have been compared with other digenean spermatozoa. Moreover, a close attention was paid to the organization of the external ornamentation region. This zone presents a single row of cortical microtubules disposed in a semi-circle around a mitochondrion and associated with external ornamentation and spine-like bodies. The aim of this study is to highlight criteria which can be interesting in Platyhelminthes phylogeny.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Spermatozoa
/
Trematoda
Limits:
Animals
Language:
En
Journal:
Parasitol Res
Journal subject:
PARASITOLOGIA
Year:
2009
Document type:
Article
Affiliation country:
Francia