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Molecular Reproduction & Development Volume 78, Issue 8 cover image
Publication year - 2011
Publication title -
molecular reproduction and development
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.745
H-Index - 105
eISSN - 1098-2795
pISSN - 1040-452X
DOI - 10.1002/mrd.21372
Subject(s) - strongylocentrotus purpuratus , biology , spermatozoon , sea urchin , exocytosis , microvillus , sperm , gamete , microbiology and biotechnology , reproduction , zoology , anatomy , biophysics , biochemistry , ecology , genetics , membrane
Transmission electron micrograph of a sea urchin (Strongylocentrotus purpuratus) spermatozoon (purple) bound to the tip of an egg microvillus (yellow) by the bindin protein (diffuse purple), which was released during exocytosis of the sperm acrosomal vesicle. Egg microvilli are approximately 0.25 µm in diameter. More on observing these events on the cellular level in a classroom laboratory setting is presented by VD Vacquier (this issue).