Sperm plasma membrane
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Anion Channels In The Sea Urchin Sperm Plasma Membrane
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The sperm plasma membrane
The evaluation of the function of sperm plasma membrane can be applied in detecting semen quality, selecting semen centrifugation, assessing the quality and fertilizability of sex-sorted sperm, improving cryopreservation, and guiding the optimization of intracytoplasmic sperm injection. Indications from the lateral diffusion rates of lipid-soluble fluorescent dyes, Dev. For this purpose, dynamics in adhesive and fusion properties, molecular composition and architecture of the sperm plasma membrane, as well as membrane derived signalling are reviewed. Immunological Approaches to Contraception and Fertility G. Biophysical studies reveal that lipids and proteins are organized into lateral regions of the sperm head surface. Analysis of its secretion, association with sperm, and function, Am. Information on other cell-surface macromolecules, especially on cilia and flagella, is available in a number of articles e. Sexual reproduction is marked by the fusion of the sperm cell with the oocyte during fertilization to produce the diploid zygote, in which the lipids in the sperm plasma membrane play an important role. Sperm fertilizability can be predicted by detecting the function of the sperm plasma membrane, which is performed mainly with the following five techniques. This is a preview of subscription content, log in to check access. CrossRef Google Scholar. Cambridge University Press, London, pp. A phosphatidylinositol-anchored membrane protein, J. Evidence derived from structural perturbations induced by free fatty acids and life time heterogeneity analysis, J. The ZP primes the sperm cell to initiate the acrosome reaction, which is an exocytotic process that makes available the enzymatic machinery required for sperm penetration through the ZP.
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