Consulta: subjectFacets:"Spermatic ultrastructure"
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Data/hora: 11/06/2024 06:37:33

In vitro fertilization of the rock shrimp, Rhynchocinetes typus (Decapoda, Caridea): a review
Provedor de dados: 48
Autores: Dupré,Enrique M; Barros,Claudio.
This review compiles all the research done on gametes and fertilization in the rock shrimp, R. typus, and describes the sequence of events from the first gamete interaction to zygote formation and the first cleavage of the embryo, with light, fluorescence confocal and electron microscopes. Early studies showed that sperm from the vas deferens have a tack-shape with a "needle-like process" or rigid spike (RS) that extends from a semi-spherical body that contains the arms with chromatin and spines. Upon contact with seawater and by action of Na +, the arms and spines extend, producing an inverted umbrella form of the spermatozoa. The first sperm-oocyte interaction occurs between protein receptors type lectins of the sperm RS and oocyte chorion sperm ligands....
Tipo: Journal article
Palavras-chave: Spermatic ultrastructure; Oocyte; Sperm-egg interaction.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602011000200003