| Autor: |
Hess RA; Department of Veterinary Biosciences, University of Illinois, Urbana 61801., Thurston RJ, Gist DH |
| Jazyk: |
angličtina |
| Zdroj: |
The Anatomical record [Anat Rec] 1991 Apr; Vol. 229 (4), pp. 473-81. |
| DOI: |
10.1002/ar.1092290406 |
| Abstrakt: |
The turtle spermatozoon is vermiform in shape with a narrow pointed head that is curved. In general, the turtle sperm contains a typical head, midpiece and tail, similar in morphology to that of birds, amphibians and other reptiles. However, several structures are unique. These unusual features include (1) a perforatorial cap over the proximal end of the nucleus, which contains 2-3 rods that are contiguous with intranuclear tubules; (2) a connecting collar of dense material that surrounds the base of the nucleus; (3) a distal centriole containing central microtubules that extend its entire length and having outer triplicate microtubules that open toward the central cavity of the centriole; and (4) unusual spherical mitochondria containing 7-8 outer laminated membranes. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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