Experimental Embryology

Embryology, Experimental

 

a branch of embryology that studies the mechanisms controlling the individual development of animals and plants by means of experiments on living organisms. It uses such methods as marking, removal, transplantation, and isolation of body parts and organs. It also studies the action of various external factors on embryonic development.

Experimental embryology identifies the stages of the determination of the material of rudimentary organs and tissues, the sources of formative or inductive influences, the role of synthesis of macromolecules in the processes of determination and differentiation, and the factors responsible for morphogenesis. By removing, inactivating, or transplanting cell nuclei, experimental embryologists investigate the interaction of the nucleus and cytoplasm during gametogenesis and embryonic development, as well as the stages and factors of differential activation of genes in the course of development.

T. A. DETLAF

References in periodicals archive ?
The mice originated from the mouseraising facility in the Department of Experimental Embryology. Mice were kept under a 12-h day starting at 7 am.
The history of modern experimental embryology and regeneration shows the influence that these views have had on those who have followed the new work.
It has generally been thought that this transformation is triggered by chemical and physical influences from other tissues, such as lens or cornea, but some, including the father of experimental embryology, Hans Spemann, have suggested that perhaps external induction or force is not necessary.
It has generally been thought that this transformation is triggered by chemical and physical influences from other tissues, such as lens or comea, but some, including the father of experimental embryology, Hans Spemann, have suggested that perhaps external induction or force is not necessary.
At Cambridge, Edinburgh, Oxford and London there was a potent mix of cell culture methods, micromanipulation techniques and experimental embryology, and, later, molecular methods of tracking and testing gene action; these rapidly enabled breakthroughs such as the discovery of imprinting, while also enabling many practical applications, such as cryopreservation of sperm, human contraception and the cloning of livestock.
The use of early chickembryos in experimental embryology and teratologyimprovements in standard procedures.
(Chicken embryo as model for experimental embryology study: identification of primordial germ cells).
In Experimental Embryology of Marine and Fresh-water Invertebrates, G.
85-103 In Experimental Embryology of Marine and Fresh-water Invertebrates, G.

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