Periodic calcium waves cross ascidian eggs after fertilization - PubMed

Periodic calcium waves cross ascidian eggs after fertilization

J E Speksnijder et al. Dev Biol. 1990 Nov.

Abstract

Ascidian eggs respond to fertilization with one to two dozen periodic calcium pulses (J.E. Speksnijder, D.W. Corson, C. Sardet, and L.F. Jaffe, 1989a, Dev. Biol. 135, 182-190). We examined the spatial pattern of these pulses and found that they are initiated in discrete regions from which they propagate as waves. The first few pulses start in the animal hemisphere, whereas the later ones are mostly initiated near the vegetal pole. Such vegetal waves are often followed by a contraction of the egg surface. Since these waves are attenuated as they spread, they repeatedly expose the vegetal pole region to more calcium. The mechanism of these repetitive calcium waves and their possible role in establishing pattern or completing meiosis is discussed.

Similar articles

• The repetitive calcium waves in the fertilized ascidian egg are initiated near the vegetal pole by a cortical pacemaker.

  Speksnijder JE. Speksnijder JE. Dev Biol. 1992 Oct;153(2):259-71. doi: 10.1016/0012-1606(92)90111-s. Dev Biol. 1992. PMID: 1397683

• Function and characteristics of repetitive calcium waves associated with meiosis.

  McDougall A, Sardet C. McDougall A, et al. Curr Biol. 1995 Mar 1;5(3):318-28. doi: 10.1016/s0960-9822(95)00062-5. Curr Biol. 1995. PMID: 7780742

• The activation wave of calcium in the ascidian egg and its role in ooplasmic segregation.

  Speksnijder JE, Sardet C, Jaffe LF. Speksnijder JE, et al. J Cell Biol. 1990 May;110(5):1589-98. doi: 10.1083/jcb.110.5.1589. J Cell Biol. 1990. PMID: 2335565 Free PMC article.

• Fertilisation calcium signals in the ascidian egg.

  Dumollard R, McDougall A, Rouvière C, Sardet C. Dumollard R, et al. Biol Cell. 2004 Feb;96(1):29-36. doi: 10.1016/j.biolcel.2003.11.002. Biol Cell. 2004. PMID: 15093125 Review.

• From oocyte to 16-cell stage: cytoplasmic and cortical reorganizations that pattern the ascidian embryo.

  Sardet C, Paix A, Prodon F, Dru P, Chenevert J. Sardet C, et al. Dev Dyn. 2007 Jul;236(7):1716-31. doi: 10.1002/dvdy.21136. Dev Dyn. 2007. PMID: 17420986 Review.

Cited by

• Calcium at fertilization and in early development.

  Whitaker M. Whitaker M. Physiol Rev. 2006 Jan;86(1):25-88. doi: 10.1152/physrev.00023.2005. Physiol Rev. 2006. PMID: 16371595 Free PMC article. Review.

• Evidence for the involvement of the Rho GTP-binding protein in egg activation of the ascidian Halocynthia roretzi.

  Toratani S, Yokosawa H. Toratani S, et al. Dev Growth Differ. 1995 Feb;37(1):31-37. doi: 10.1046/j.1440-169X.1995.00004.x. Dev Growth Differ. 1995. PMID: 37281415

• Self-organization and entropy reduction in a living cell.

  Davies PC, Rieper E, Tuszynski JA. Davies PC, et al. Biosystems. 2013 Jan;111(1):1-10. doi: 10.1016/j.biosystems.2012.10.005. Epub 2012 Nov 15. Biosystems. 2013. PMID: 23159919 Free PMC article.

• Unraveling the physiochemical nature of colloidal motion waves among silver colloids.

  Chen X, Xu Y, Zhou C, Lou K, Peng Y, Zhang HP, Wang W. Chen X, et al. Sci Adv. 2022 May 27;8(21):eabn9130. doi: 10.1126/sciadv.abn9130. Epub 2022 May 25. Sci Adv. 2022. PMID: 35613263 Free PMC article.

• Calcium signalling in early embryos.

  Whitaker M. Whitaker M. Philos Trans R Soc Lond B Biol Sci. 2008 Apr 12;363(1495):1401-18. doi: 10.1098/rstb.2008.2259. Philos Trans R Soc Lond B Biol Sci. 2008. PMID: 18263556 Free PMC article. Review.

Publication types

MeSH terms

Substances