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==Spermatozoa Swims within the Previtelline space (PVS) Prior to Fertilization===
==Spermatozoa Swims within the Previtelline space (PVS) Prior to Fertilization==


(A) Typical morphology of a MII oocyte with the meiotic chromosomes located in one “shoulder.”  
(A) Typical morphology of a MII oocyte with the meiotic chromosomes located in one “shoulder.”  


(B and C) Sequential DIC (differential interference contrast) images of embryos during in vitro fertilization.  
(B and C) Sequential DIC (differential interference contrast) images of embryos during in vitro fertilization.  
 
{|
|
# Sperm penetrates the ZP.  
# Sperm penetrates the ZP.  
# Sperm swims around the PVS.  
# Sperm swims around the PVS.  
# Sperm swims around the PVS.  
# Sperm swims around the PVS.  
# Sperm hits the 1pb.  
# Sperm hits the first polar body (1pb).  
# Sperm binds the oocyte membrane.  
# Sperm binds the oocyte membrane.  
# 2pb extrudes and the fertilization cone forms. White arrowheads indicate the sperm, red arrowheads the 1pb, and yellow arrowheads the collapsing (B) or rotating (C) 1pb.  
# 2pb extrudes and the fertilization cone forms.  


White and red asterisks mark the fertilization cone and the 2pb, respectively. Scale bars in (A) and (B1) represent 20 microns.
|
* White arrowheads indicate the sperm.
* Red arrowheads the first polar body (1pb).
* Yellow arrowheads the collapsing (B) or rotating (C) first polar body (1pb).
* White asterisks mark the fertilization cone.
* Red asterisks mark the second polar body (2pb).  
* Scale bars in (A) and (B1) represent 20 microns.
|}


See also [[:File:Mouse-fertilization 01.jpg]] | [[Movie_-_Fertilization_01|Movie - Fertilization in mouse]]


Figure 3. Journal.pbio.0040135.g003.jpg
:'''Links''': [[:File:Mouse-fertilization 01.jpg]] | [[Movie_-_Fertilization_01|Movie - Fertilization in mouse]] | [[Cell Division - Mitosis]] | [[Zygote]]


doi:10.1371/journal.pbio.0040135.g003


http://www.plosbiology.org/article/info%3Adoi%2F10.1371%2Fjournal.pbio.0040135
===Reference===
<pubmed>16620153</pubmed>| [http://www.plosbiology.org/article/info%3Adoi%2F10.1371%2Fjournal.pbio.0040135 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====


Academic Editor: Hiroshi Hamada, Osaka University, Japan
© 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.  Received: October 13, 2005; Accepted: February 24, 2006; Published: April 25, 2006


Received: October 13, 2005; Accepted: February 24, 2006; Published: April 25, 2006
Figure 3. Journal.pbio.0040135.g003.jpg doi:10.1371/journal.pbio.0040135.g003


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.


[[Category:Fertilization]] [[Category:Mouse]] [[Category:Oocyte]] [[Category:Spermatozoa]]
[[Category:Fertilization]] [[Category:Mouse]] [[Category:Oocyte]] [[Category:Spermatozoa]][[Category:Polar Body]]

Latest revision as of 11:16, 17 Haziran 2014

Spermatozoa Swims within the Previtelline space (PVS) Prior to Fertilization

(A) Typical morphology of a MII oocyte with the meiotic chromosomes located in one “shoulder.”

(B and C) Sequential DIC (differential interference contrast) images of embryos during in vitro fertilization.

  1. Sperm penetrates the ZP.
  2. Sperm swims around the PVS.
  3. Sperm swims around the PVS.
  4. Sperm hits the first polar body (1pb).
  5. Sperm binds the oocyte membrane.
  6. 2pb extrudes and the fertilization cone forms.
  • White arrowheads indicate the sperm.
  • Red arrowheads the first polar body (1pb).
  • Yellow arrowheads the collapsing (B) or rotating (C) first polar body (1pb).
  • White asterisks mark the fertilization cone.
  • Red asterisks mark the second polar body (2pb).
  • Scale bars in (A) and (B1) represent 20 microns.


Links: File:Mouse-fertilization 01.jpg | Movie - Fertilization in mouse | Cell Division - Mitosis | Zygote


Reference

<pubmed>16620153</pubmed>| PLoS Biol

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. Received: October 13, 2005; Accepted: February 24, 2006; Published: April 25, 2006

Figure 3. Journal.pbio.0040135.g003.jpg doi:10.1371/journal.pbio.0040135.g003

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