Gastrulation difference

Growth at the level of the organism is an increase in cell number, cell mass, extracellular mass, fluid content and other components of the body that result in an increase of body mass. The mammalian body has very different growth phases with different functions. The pre-implantation embryo does not grow, but only divides, fuelled by materials that were deposited in the egg before fertilization. After implantation there is very rapid cell division which is tightly coupled to cell differentiation in the process of gastrulation — the creation of the different lineages... 

These compounds also inhibited the gastrulation of the starfish (Asterina pectinifera) embryo [129,130], Both racemic and enantiomeric forms of rophaloic acid A have been synthesised by very different... 

Bally-Cuif, L., Gulisano, M., Broccoli, V., Boncinelli, E. 1995. C-otx2 is expressed in two different phases of gastrulation and is sensitive to retinoic acid treatment in chick embryo. Mech. Dev. 49, 49-63. 

Cieton, R., G. Zwaan, and R. Dohmen. 1993. Specific Developmental Defects in Mollusks after Treatment with Retinoic Acid During Gastrulation. Dev Growth Differ 35, no 3 357-64. 

These differences lead us to suggest that, in this case, the peculiarities of nu-cleo-cytoplasmic interactions in the different parts of the embryo played an important role. Apparently, nuclear activities differ in the presumptive cells of any embryo component. Such differences determine the further development of the various presumptive layers in gastrulation (Korolev and Neyfach, 1965). 

---