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Fertilization 001_icon.jpg</wikiflv>
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Fertilization of the Mouse Oocyte
- White arrowhead - sperm
- White exclamation mark - (at beginning of movie) time of fertilization (short cytoplasmic contraction)
- Black asterisk - site of second polar body formation
- White asterisk - site of fertilization cone formation
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Sequential differential interference contrast (DIC) images of mouse embryos during in vitro fertilisation
- Spermatozoa penetrates the zone pellucida (ZP).
- Spermatozoa swims around the perivitelline space (PVS).
- Spermatozoa swims around the perivitelline space (PVS).
- Spermatozoa hits the first polar body (1pb).
- Spermatozoa binds the oocyte membrane.
- Second polar body (2pb) extrudes and the fertilization cone forms.
Legend
- White arrowheads - indicate the sperm
- Red arrowheads - first polar body (1pb)
- Yellow arrowheads - the collapsing first polar body (1pb).
- White and red asterisks - mark the fertilization cone and the 2pb, respectively.
Scale bar represent 20 μm.
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Reference
<pubmed>16620153</pubmed>| PMC1440932 | PLoS Biol.
Citation: Motosugi N, Dietrich J-E, Polanski Z, Solter D, Hiiragi T (2006) Space Asymmetry Directs Preferential Sperm Entry in the Absence of Polarity in the Mouse Oocyte. PLoS Biol 4(5): e135. doi:10.1371/journal.pbio.0040135
Copyright
© 2006 Motosugi et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.