... oocytes . J. Cell. Physiol.   121 , 415 - 418 . 10.1002/jcp.1041210220 Carroll , J. , Swann , K. , Whittingham , D. and Whitaker , M. ( 1994 ). Spatiotemporal dynamics of intracellular [Ca2+]i oscillations during the growth and meiotic maturation of mouse oocytes...

[email protected] ) * These authors contributed equally to this work © 2009. 2009 MSP signaling Notch signaling Meiosis Meiotic maturation Germline stem cell Cytoplasmic streaming Caenorhabditis elegans A key question in developmental biology is how conserved intercellular...

... evolutionary conservation are incompletely understood. In C. elegans , a sperm-sensing mechanism regulates oocyte meiotic maturation and ovulation, tightly coordinating sperm availability and fertilization. Sperm release the major sperm protein (MSP)signal to trigger meiotic resumption (meiotic maturation...

... and the developmental program of oocytes are likely to have devastating consequences. Oocyte maturation Meiotic maturation Myt1 Wee1 Cdk1 © 2006. 2006 7 12 2005 * Present address: Department of Biology, College of William and Mary,Williamsburg, VA 23187, USA † Author...

... for both oocyte meiotic maturation and ovarian muscle contraction. The identification of the signaling function of MSP raised the question, how do spermatozoa, which are devoid of ribosomes, ER and Golgi, release a cytoplasmic protein lacking a signal sequence? Here, we provide evidence that MSP export...

... stimulation of immature oocytes results in a change in the distribution of XaPKC 2-3 hours after the completion of germinal vesicle breakdown, which requires the kinase activity of aPKC. These results suggest that meiotic maturation induces the animal-vegetal asymmetry of aPKC. * Author...

...John Carroll; Karl Swann; David Whittingham; Michael Whitaker ABSTRACT Calcium oscillations occur during meiotic maturation of mouse oocytes. They also trigger activation at fertilization. We have monitored [Ca 2+ ] i in oocytes at different stages of growth and maturation to examine how...

...Catherine Jessus; Héléne Rime; Olivier Haccard; Johan Van Lint; Jozef Goris; Wilfried Merlevede; RenÉ Ozon ABSTRACT The tyrosine phosphorylation/dephosphorylation of p34 cdc2 was estimated by immunoblotting with antiphosphotyrosine antibody during meiotic maturation of Xenopus oocytes. At the time...

... 1990 by Company of Biologists 1990 cortical granule oocyte fertilization meiotic maturation Lytechinus variegatus Cortical granule exocytosis is a conserved mechanism in the block to polyspermy at fertilization. Most vertebrates and many invertebrates share this mechanism ( Just...

... maturation are required not only to maintain developmental arrest at metaphase II, but also to maintain condensed chromosomes during maturation. Oocytes that have completed meiotic maturation become developmentally arrested until they are fertilized. This developmental arrest occurs at different stages...

...-promoting factor MPF starfish oocytes meiotic maturation embryogenesis microinjection In the animal kingdom, oocytes enter meiosis, which is then arrested for a long period of time (from several weeks to several years) at the first meiotic prophase. At the end of vitellogenesis, the fully grown...