Ultrastructure of spermiogenesis and spermatozoa of Pricea sp. (Monogenea, Polyopithocotylea, Gasterocotylidae), a gill parasite of Scomberomorus commerson (Pisces: Scomridae ) in Egypt

Document Type : Original articles

Authors

1 Department of zoology, Faculty of Science, University of Damietta, Egypt

2 Department of Aquatic Biology, Faculty of Science, University of Markab, Libya

Abstract

The ultrastructure of the mature spermatozoon of polyopithocotylean Pricea sp., a parasite of
Scomberomorus commerson was studied by transmission electron microscopy. The spermatozoon is
composed of two parallel axonemes, of the 9 +“1” pattern, one mitochondrion, a nucleus, cortical
microtubules. The main characteristics of this spermatozoon are the presence of one mitochondrion,
the two axonemes, which are of unequal length, and the cortical microtubules extend almost the entire
length of the spermatozoon.The present study indicated that spermatogenesis is connected to a
common cytophore. Spermiogenesis and the structure of the filiform sperm of Pricea sp conform to
the typical polyopisthocotylean pattern. Ultrastructural features are also discussed and compared to
other the monogeneans.

Keywords

Files

Share

How to cite

Statistics