Ultrastructure of spermiogenesis and spermatozoa of Pricea sp. (Monogenea, Polyopithocotylea, Gasterocotylidae), a gill parasite of Scomberomorus commerson (Pisces: Scomridae ) in Egypt | ||||
Scientific Journal for Damietta Faculty of Science | ||||
Article 4, Volume 4, Issue 1, 2015, Page 35-43 PDF (1.03 MB) | ||||
Document Type: Original articles | ||||
DOI: 10.21608/sjdfs.2015.194326 | ||||
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Authors | ||||
A. A. Khidr 1; M H Bahnasawy1; F E Bakoosh2 | ||||
1Department of zoology, Faculty of Science, University of Damietta, Egypt | ||||
2Department 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 | ||||
Platyhelminthes; Monogenea; TEM; spermatogenesis; spermatozoon | ||||
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