Publication: Fine structure of spermatozoa in the common pandora (Pagellus erythrinus
Linnaeus, 1758) (Perciformes, Sparidae)
Authors
Maricchiolo, G. ; Genovese, L. ; Laurà, R. ; Micale, V. ; Muglia, U.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
Scanning and transmission electron
microscopy were used to investigate the fine structure of
the sperm of the Sparid fish Pagellus erythrinus L.. The
spermatozoon of pandora has a spherical head lacking an
acrosome, a cone-shaped midpiece and a long tail. The
midpiece houses a single mitochondrion. The centriolar
complex lies inside the nuclear fossa and is composed of
a proximal and a distal centriole which are arranged at
right angles to each other. The flagellum is inserted
medio-laterally into the head, contains the conventional
9+2 axoneme and possesses one pair of lateral fins. On
the basis of its ultrastructural organization, the pandora
sperm can be regarded as an evolved form of the
primitive spermatozoon found in Teleosts. According to
the morphological classification proposed by Mattei
(1970), the sperm of pandora belongs to a “type I”
designation, like that of the other Sparid fish.
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