germ layers


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germ layers

An early embryo’s three cellular layers, giving rise to all body tissues. See ectoderm, endoderm, mesoderm.
References in periodicals archive ?
3] They are composed of one or more germ layers derived from a pluripotent precursor cell.
Maintenance of developmental potential for contribution of derivatives of all three germ layers is an important feature of these cells.
We have demonstrated that BaP exposure during fetal development causes severe somatic and germ cell consequences in F1 animals and that tissues originating from all three germ layers, as well as the germ cells themselves, are highly mutagenized in adult offspring.
Mouse ES cells derived from embryos before implantation can differentiate into all three germ layers and germ cells.
Ovarian teratomas present unique histological features, as tissues derived from more than one of the three germ layers are present, including neural tissue, adipose tissue, bone, teeth, and respiratory epithelium.
The histopathology report was mature GT composed of tissues derived from all three germ layers.
Magnesium intake reportedly declined from a high of 500 mg per day in 1900 to just 175 mg to 225 mg per day today, attributed to grain processing that removes the magnesium-rich bran and germ layers and to fast food menus that are typically deficient in magnesium-rich vegetables, whole grains and legumes.
In just a few days they go from this undifferentiated mass to an organized embryo with different germ layers and the beginnings of a neural tube.
The results showed that our cell lines expressed pluripotent markers, had normal karyotypes, and retained the potential to differentiate into the three germ layers under in vitro conditions.
They express stem cell markers also and are capable of generating cells characteristic of all three germ layers.
During gastrulation, the embryo folds inwards into a cup-like shape, forming the primary germ layers that give rise to all the organs in the body.
It contains structures which are derivatives of all three germ layers.