Gastrulation movements

It has been reported that during the formation of the blastocoel the intracellular Na+ ion concentration decreases by about 40% and that the excreted sodium appears in the blastocoel fluid (Kostellow and Morrill, 1968). Therefore the change of intracellular Na concentration may have to do with the blastocoel formation, which precedes the gastrulation movements. 

Fig. 2. Gastrulation movements induced by activin treatment of animal pole cells. Control explants on the top form spheres those treated with activin, on the bottom, elongate.

Symes, K. and Smith, J. C. (1987) Gastrulation movements provide an early marker of mesoderm induction in Xenopus. Development 101,339-349. 

Keller, R., Shih, J., and Wilson, R (1991) CeU motility, control and function of convergence and extension during gashulation of Xenopus, in Gastrulation Movements, Patterns, and Molecules (Keller, R, Clark, W., and Griffin, F. eds.). Plenum Press, New York, pp. 101-119. 

Winklbauer, R., Selchow, A., Nagel, M., Stoltz, C., and Angres, B. (1991) Mesoderm cell migration in the Xenopus gastrula, in Gastrulation Movements, Patterns,... 

Veeman MT et al (2003) Zebrafish prickle, a modulator of noncanonical Wnt/Tz signaling, regulates gastrulation movements. Cmr Biol 13 680-685... 

As the syncytial fly embryo becomes cellular and undergoes gastrulation, the movement of proteins and mRNAs through the common cytoplasm of a syncytium is over. Further cell-fate specification is controlled primarily by cells communicating with one another through secreted extracellular signals. In this section, we examine how three signaling path-... 

Mesoderm. In the early development of zebrahsh embryos, gastrulation, a process that lasts from 6 to 10 hpf and involves a variety of cell and tissue movements, results in three germ layers. The mesoderm is the middle layer between the ectoderm (outside layer) and the endoderm (inside layer). 

Heisenberg CP et al. (2000) Silberbhck/Wht77 mediates convergent extension movements during zebrafish gastrulation. Nature 405(6782) 76-81. 

Yang X et al. (2002) Cell movement patterns during gastrulation in the chick are controlled by positive and negative chemotaxis mediated by FGE4 and EGF8. Dev Cell 3(3) 425 37. 

Nakatsuji, N. (1975) Studies on the gastrulation of amphibian embyros cell movement during gastrulation in Xenopus laevis embryos. Wilhelm Roux Arch. 178, 1-14. 

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