Appropriate organization of three germ layers—endoderm ... germ layers in this in vitro embryo model. Propidium iodide (PI, Sigma) was used to label apoptotic ESCs. Colonies after 5 days ...

A study published today in the journal Developmental Cell uncovers new insights into how the heart forms during the earliest stages of embryonic development.

During the process of gastrulation, the germ layers are formed and then rearranged, which creates the internal and external parts of the developing embryo. Gastrulation occurs according to a ...

To make sure that the resulting embryo only ends up with ... to form those three distinct layers of embryonic cells. Each of these new layers is termed a germ layer, with each germ layer ...

The heart and lungs develop from two distinct germ layers within the embryo, the mesoderm and endoderm, which must communicate with each other for the organs to form correctly. "My scientific ...

Because these blastoids only use ESCs derived from the epiblast, which becomes the embryo proper with germ layers, they model embryonic development’s pre-implantation period, up to seven days post ...

A new discovery by researchers challenges our current understanding of gastrulation, the most important stage of early embryonic development. When the zygote, or the fertilised egg, starts to ...

A study published today (September 11) in Nature Ecology & Evolution suggests that instead of two distinct germ layers, cnidarians may indeed have three. The authors show that the mesendoderm of the ...