Ultrastructural differentiation of sperm tail region in diplometopon zarudnyi (an amphisbaenian reptile)
Joint Authors
al-Sadun, M. K.
al-Dukhi, O.
Mukhtar, Ahmad
al-Dusari, A.
Source
Saudi Journal of Biological Sciences
Issue
Vol. 22, Issue 4 (31 Dec. 2015), pp.448-452, 5 p.
Publisher
Publication Date
2015-12-31
Country of Publication
Saudi Arabia
No. of Pages
5
Main Subjects
Topics
Abstract EN
Diplometopon zarudnyi, a worm lizard belongs to amphisbaenia under trogonophidae family.
This species exists in limited areas of the Arabian Peninsula and is an oscillating digger found in sub-surface soils.
The present study aimed to investigate the sperm tail differentiation in D.
zarudnyi.
Ten male adults of D.
zarudnyi were collected from Riyadh during April–May 2011.
To study the sperm tail at the ultrastructural level the testes were fixed in 3% glutaraldehyde, than post fixed in 1% osmium tetaroxide followed by dehydration in ethanol grades; samples were cleared in propylene oxide and embedded in resin.
Tail formation begins by the moving of centrioles and mitochondria towards the posterior pole of sperm head.
Simultaneously many microtubules of the midpiece axoneme were enclosed by a thick layer of granular material.
Mitochondria of midpiece lie alongside the proximal centriole which forms a very short neck region and possess tubular cristae internally and concentric layers of cristae superficially.
During this course a fibrous sheath surrounds the axoneme of mid and principal piece.
At the end dissolution of longitudinal manchette takes place.
The mitochondria then rearrange themselves around the proximal and distal centrioles to form a neck region.
Later, the fibrous sheath surrounds the proximal portion of the flagella.
This part along with sperm head of D.
zarudnyi provides a classical model that could be used in future for evolutionary and phylogenetic purposes of class reptilia.
American Psychological Association (APA)
al-Dukhi, O.& Mukhtar, Ahmad& al-Dusari, A.& al-Sadun, M. K.. 2015. Ultrastructural differentiation of sperm tail region in diplometopon zarudnyi (an amphisbaenian reptile). Saudi Journal of Biological Sciences،Vol. 22, no. 4, pp.448-452.
https://search.emarefa.net/detail/BIM-577843
Modern Language Association (MLA)
al-Dukhi, O.…[et al.]. Ultrastructural differentiation of sperm tail region in diplometopon zarudnyi (an amphisbaenian reptile). Saudi Journal of Biological Sciences Vol. 22, no. 4 (2015), pp.448-452.
https://search.emarefa.net/detail/BIM-577843
American Medical Association (AMA)
al-Dukhi, O.& Mukhtar, Ahmad& al-Dusari, A.& al-Sadun, M. K.. Ultrastructural differentiation of sperm tail region in diplometopon zarudnyi (an amphisbaenian reptile). Saudi Journal of Biological Sciences. 2015. Vol. 22, no. 4, pp.448-452.
https://search.emarefa.net/detail/BIM-577843
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 452
Record ID
BIM-577843