منابع مشابه
Sperm membrane physiology and relevance for fertilization.
This paper aims to overview recent insights in sperm surface remodelling pertinent to fertilization. A basic understanding of this remodelling is required to interpret the high amount of data appearing from high-throughput identification techniques for proteins presently applied in reproductive biology. From the extensive lists of protein candidates identified by proteomics, only a few are reco...
متن کاملFertilization and sperm chemotaxis in ascidians.
Prior to fertilization, spermatozoa of many animals and plants show chemotactic behavior toward eggs. Chemotactic behavior was first described in ferns (1), and their attractant was identified as the bimalate ion (2). In animals, sperm chemotaxis to the egg was first observed in the hydrozoan Spirocodon saltatrix (3) and is now widely recognized in all species from cnidarians to human (for revi...
متن کاملDevelopmental sperm contributions: fertilization and beyond.
The objective of this review was to examine the role of the various spermatozoal components suspected of actively participating in early human development. The contributions of the fertilizing spermatozoon to the oocyte include, as a minimum, the delivery of the DNA/chromatin, a putative oocyte-activating factor (OAF), and a centriole. Recent data indicate that spermatozoa may also provide the ...
متن کاملP-19: Effect of Three Sperm Preparation Methods on Sperm DNA Integrity and Oocyte Fertilization Rate
Background: Techniques of sperm preparation require centrifugation to separate spermatozoa from the seminal plasma. The centrifugation can induce damage to the spermatozoa and increase reactive oxygen species(ROS) productionspecially in leukospermic speciemens that are associated with impaired function and fertilizing capacity. However in ICSI, fertilization can occure with damage DNA sperm but...
متن کاملFertilization: A Sticky Sperm Protein in Plants
During fertilization in eukaryotes, gametes of the opposite sex undergo a complex series of interactions that culminate in cell fusion. A new study on gamete interaction in plants has identified the first protein in multicellular organisms shown by gene disruption to be essential for gamete membrane adhesion.
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ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1915
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1536251