- embryonic induction
The induction of differentiation in one tissue as a result of proximity to another tissue arising, for example, during gastrulation. One of the best known examples is the induction of the neural tube in the ectoderm by the underlying chordo-mesoderm. Although the information to form the tube is present in the competent determined ectoderm, it must be elicited by the inducing tissue. In some cases it is known that cell-cell contact between epithelium and mesenchyme is necessary.
Dictionary of molecular biology. 2004.
Look at other dictionaries:
induction — See embryonic induction or enzyme induction … Dictionary of molecular biology
Embryonic stem cell — Embryonic stem cells (ES cells) are stem cells derived from the inner cell mass of an early stage embryo known as a blastocyst. Human embryos reach the blastocyst stage 4 5 days post fertilization, at which time they consist of 50 150 cells.… … Wikipedia
induction — 1. Production or causation. 2. Production of an electric current or magnetic state in a body by electricity or magnetism in another body close to the first body. 3. The period from the start of anesthesia to the establishment of a depth of … Medical dictionary
induction — noun Date: 14th century 1. a. the act or process of inducting (as into office) b. an initial experience ; initiation c. the formality by which a civilian is inducted into military service 2. a. (1) inference of a generalized conclusion from… … New Collegiate Dictionary
planar induction — noun The process in which genetic signals are transmitted across a single embryonic layer, such as ectoderm … Wiktionary
animal development — Introduction the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by … Universalium
Hans Spemann — Infobox Scientist name = Hans Spemann image size =180px birth date = June 27, 1869 birth place = Stuttgart, Germany death date = September 9, 1941 death place = Freiburg, Germany nationality = Germany field = Embryology work institutions = alma… … Wikipedia
Spemann, Hans — ▪ German embryologist born June 27, 1869, Stuttgart, Württemberg [now in Germany] died Sept. 12, 1941, Freiburg im Breisgau, Ger. German embryologist who was awarded the Nobel Prize for Physiology or Medicine in 1935 for his discovery of… … Universalium
Gastrulation — of a diploblast: The formation of germ layers from a (1) blastula to a (2) gastrula. Some of the ectoderm cells (orange) move inward forming the endoderm (red). Gastrulation is a phase early in the embryonic development of most animals, during… … Wikipedia
Driesch, Hans Adolf Eduard — ▪ German embryologist born Oct. 28, 1867, Bad Kreuznach, Prussia [now in Germany] died April 16, 1941, Leipzig, Ger. German experimental embryologist and philosopher who was the last great spokesman for vitalism, the theory that life cannot be… … Universalium