Ultrastructural differentiation of sperm tail region in Diplometopon zarudnyi (an amphisbaenian reptile)
نویسندگان
چکیده
منابع مشابه
The amphisbaenian ear: Blanus cinereus and Diplometopon zarudnyi.
Observations on the structure and function of the ear in amphisbaenians have been extended to two new species: to Blanus cinereus of the family Amphisbaenidae and Diplometopon zarudnyi of the family Trogonophidae. Blanus, considered one of the most primitive of this group of reptiles, shows a distinctive form of sound-receptive mechanism. The usual extracolumella is lacking, and the columella a...
متن کاملCranial anatomy of the spade-headed amphisbaenian Diplometopon zarudnyi (Squamata, Amphisbaenia) based on high-resolution X-ray computed tomography.
The skull of the trogonophid amphisbaenian Diplometopon zarudnyi is described from high-resolution X-ray computed tomographic (HRXCT) imagery of a whole museum specimen preserved in ETOH. The skull was digitally resliced and disarticulated into individual elements, producing novel visualizations that allow detailed morphological analysis of its three-dimensionally complex structure. The prefron...
متن کاملdevelopment and implementation of an optimized control strategy for induction machine in an electric vehicle
in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
15 صفحه اولUltrastructural Morphology of Sperm from Human Globozoospermia
Globozoospermia is a rare disorder characterized by the presence of sperm with round head, lacking acrosome. Coiling tail around the nucleus has been reported since early human studies, but no specific significance has conferred it. By contrast, studies on animal models suggest that coiling tail around the nucleus could represent a crucial step of defective spermatogenesis, resulting in round-h...
متن کاملI-3: Tale of The Tail: Candidate Genes Involved in Sperm Flagella Formation
Background ISTS defect in which sperm tail is short and fibrous sheath and axoneme are disorganized, is one of the syndromes that cause male infertility. Although a few studies have been done in this regard, its exact etiology in human is unclear yet. Four candidate genes causing ISTS are SPEF2, RABL2B, and A-kinas anchoring proteins genes (AKAP3 and AKAP4). Proteins which coded by SPEF2 and RA...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Saudi Journal of Biological Sciences
سال: 2015
ISSN: 1319-562X
DOI: 10.1016/j.sjbs.2015.05.002