Sperm plasma membrane
A pig sperm-egg interaction model was used to examine quantitative details of zona binding and zona penetrating abilities within capacitated sperm populations, and sperm behaviour was found not to accord with generally held beliefs. Effects of scrotal insulation in Nellore bulls Bos taurus indicus on seminal quality and its relationship with in vitro fertilizing ability. Sl-chol was synthesized according to the protocol in [ 50 ]. The filters were then washed with TBST two 1-liter washes and peroxidase activity detected with enhanced chemiluminescence Amersham. Integrity of the plasma membrane, the acrosomal membrane, and the mitochondrial membrane potential of sperm in Nelore bulls from puberty to sexual maturity. Furthermore, neither glycerol nor egg yolk alone could reduce the intact acrosome percentage; however, combination of these two protectants significantly reduces the percentage of intact acrosome spermatozoa [ 82 ].
Gene Ontology and GO Annotations
Membrane fluidity and the ability of domestic bird spermatozoa to survive cryopreservation. Some seminiferous tubules were not stained at all, probably because of asynchronous development. A signal of approximately 1. Services Email this article to a friend Alert me when this article is cited Alert me if a correction is posted Alert me when eletters are published Similar articles in this journal Similar articles in Web of Science Similar articles in PubMed Download to citation manager Request Permissions. The predicted mature proteins had a calculated molecular mass of An aspect to be considered is that, differently from the sperm plasma membrane, the integrity of the acrosomal membrane was not affected by the sexual maturation of the bull. Send the link below via email or IM.
The Sperm Cell by Elysse Stone on Prezi
In the present study we investigated the extent to which cholesterol content could be modified without affecting fresh cell functional parameters, i. In Asian and African elephants, the most abundant fatty acid in spermatozoa membranes was DHA, along with lauric acid C Due to cell swelling under osmotic stress, the integrity of the plasma membrane was affected and PI permeated in the cells. Relationship between sperm plasma membrane integrity and morphology and fertility following artificial insemination. Clinical relevance of oxidative stress in male factor infertility: Comparison of in vitro methods for evaluation of boar semen quality. Receive exclusive offers and updates from Oxford Academic.
Effect of sperm cryopreservation on sperm DNA stability and progeny development in rainbow trout. A consistent improvement of plasma membrane resistance to freeze-thaw stress was therefore expected to ultimately affect fertilization and early development rates. Comparative analysis of Duroc and Pietrain boar sperm morphology. Thus, sperad is likely involved in heterotypic interactions prior to interaction of spermatozoa with the egg plasma membrane. With bull maturity, however, sperm quality improved, which is likely related to changes in the hormonal profile. How to cite this article.