Home Articles List Article Information
Egyptian Journal of Zoology
Journal Archive
Volume Volume 83 (2025)
Volume Volume 82 (2024)
Volume Volume 81 (2024)
Volume Volume 80 (2023)
Volume Volume 79 (2023)
Volume Volume 78 (2022)
Volume Volume 77 (2022)
Volume Volume 76 (2021)
Volume Volume 75 (2021)
Volume Volume 74 (2020)
Volume Volume 73 (2020)
Volume Volume 72 (2019)
Volume Volume 71 (2019)
Volume Volume 70 (2018)
Volume Volume 69 (2018)
Volume Volume 68 (2017)
Volume Volume 67 (2017)
Volume Volume 66 (2016)
Volume Volume 65 (2016)
Volume Volume 64 (2015)
Volume Volume 63 (2015)
Volume Volume 62 (2014)
Volume Volume 61 (2014)
Volume Volume 60 (2013)
Volume Volume 59 (2013)
Ramadan, S., Ismail, T., Mustafa, A. (2018). HISTOLOGICAL AND ULTRASTRUCTURAL STUDIES OF SPERMATOGENESIS OF FRESHWATER MITE, UNIONICOLA AEGYPTIACA (ACARI, UNIONICOLIDAE). Egyptian Journal of Zoology, 69(69), 191-206. doi: 10.12816/0049670
S. A. Ramadan; T. G. Ismail; A. N. Mustafa. "HISTOLOGICAL AND ULTRASTRUCTURAL STUDIES OF SPERMATOGENESIS OF FRESHWATER MITE, UNIONICOLA AEGYPTIACA (ACARI, UNIONICOLIDAE)". Egyptian Journal of Zoology, 69, 69, 2018, 191-206. doi: 10.12816/0049670
Ramadan, S., Ismail, T., Mustafa, A. (2018). 'HISTOLOGICAL AND ULTRASTRUCTURAL STUDIES OF SPERMATOGENESIS OF FRESHWATER MITE, UNIONICOLA AEGYPTIACA (ACARI, UNIONICOLIDAE)', Egyptian Journal of Zoology, 69(69), pp. 191-206. doi: 10.12816/0049670
Ramadan, S., Ismail, T., Mustafa, A. HISTOLOGICAL AND ULTRASTRUCTURAL STUDIES OF SPERMATOGENESIS OF FRESHWATER MITE, UNIONICOLA AEGYPTIACA (ACARI, UNIONICOLIDAE). Egyptian Journal of Zoology, 2018; 69(69): 191-206. doi: 10.12816/0049670

HISTOLOGICAL AND ULTRASTRUCTURAL STUDIES OF SPERMATOGENESIS OF FRESHWATER MITE, UNIONICOLA AEGYPTIACA (ACARI, UNIONICOLIDAE)

Article 12, Volume 69, Issue 69, June 2018, Page 191-206  XML
Document Type: Original Research Papers
DOI: 10.12816/0049670
View on SCiNiTO View on SCiNiTO
Authors
S. A. Ramadan email ; T. G. Ismail; A. N. Mustafa
Zoology Department, Faculty of Science, Sohag University, Sohag, Egypt
Abstract
The male genital system of the water mite, Unionicola aegyptiaca consists of an accessory gland, two spherical testes, two vasa deferentia, common vas deferens, an ejaculatory complex and spermatopositor (penis) and is supported with the male genital skeleton. It is evident that each testis is enclosed in a very thin amorphous layer (basal lamina) and consists of a germinal part, in which spermatogenesis take place for sperms development, and a glandular part which consists of a massive complex of glandular cells. The glandular cells of the accessory gland and glandular part of each testis secret testicular secretions which delivered into the lumen of the testis and contribute to sperm cell aggregation and sperm movement. The sperm development of Unionicola aegyptiaca includes spermatogonia, primary and secondary spermatocytes, spermatids and sperms. Fine structures of these stages show mitochondria, rough endoplasmic reticulum, free ribosomes and cytoplasmic vacuoles in their cytoplasm. Transmission electron micrographs show that the mature sperm consists of three parts; head, middle piece and a short tail.
Keywords
Freshwater mite; histology; spermatogenesis; Transmission electron microscope; Unionicola aegyptiaca
Main Subjects
Animal Histology; Arthropods
Statistics
Article View: 240