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Amphioxus, and the Mosaic Theory of Development (1893), by Edmund Beecher Wilson
By: James Lowe
| Published: Mar 31, 2015
Edmund Beecher Wilson experimented with Amphioxus (Branchiostoma) embryos in 1892 to identify what caused their cells to differentiate into new types…
Wilson, Edmund B. (Edmund Beecher), 1856-1939AmphioxusEmbryosEmbryologyDevelopmental Biology
Mesenchyme
By: Kate MacCord
| Published: Sep 14, 2012
Mesenchyme is a type of animal tissue comprised of loose cells embedded in a mesh of proteins and fluid, called the extracellular matrix. The loose,…
MesenchymeGastrulationStem CellsMesenchymal Stem CellsEmbryology
"The Inductive Capacity of Oral Mesenchyme and Its Role in Tooth Development" (1969-1970), by Edward J. Kollar and Grace R. Baird
By: Kate MacCord
| Published: Mar 15, 2013
Between February 1969 and August 1970 Edward Kollar and Grace Baird, from the University of Chicago in Chicago, Illinois, published three papers that…
teethEmbryosCell differentiationMesenchymeEpithelium
"The Cell-Theory" (1853), by Thomas Henry Huxley
By: Samantha Hauserman
| Published: Dec 12, 2013
The Cell-Theory was written by Thomas Henry Huxley in Britain and published in 1853 by The British and Foreign Medico-Chirurgical Review. The twenty-…
LiteratureEpigeneticsEmbryologyHuxley, Thomas Henry, 1825-1895Cellular control mechanisms
Spemann-Mangold Organizer
By: Samuel Philbrick, Erica O'Neil
| Published: Jan 12, 2012
The Spemann-Mangold organizer, also known as the Spemann organizer, is a cluster of cells in the developing embryo of an amphibian that induces…
EmbryosAmphibiansSpemann, Hans, 1869-1941EmbryologyGastrulation
Germ Layers
By: Kate MacCord
| Published: Sep 17, 2013
A germ layer is a group of cells in an embryo that interact with each other as the embryo develops and contribute to the formation of all organs and…
GastrulationEmbryologyCell differentiationEmbryosCells
Ectoderm
By: Kate MacCord
| Published: Dec 02, 2013
Ectoderm is one of three germ layers--groups of cells that coalesce early during the embryonic life of all animals except maybe sponges, and from…
EmbryosEmbryologyGastrulationCellsTissues
Epithelium
By: Kate MacCord
| Published: Oct 17, 2012
Frederik Ruysch, working in the Netherlands, introduced the term epithelia in the third volume of his Thesaurus Anatomicus in 1703. Ruysch created…
EpitheliumRuysch, Frederik, 1638-1731AnatomyCells--MorphologyHis, Wilhelm, 1831-1904
"The Developmental Capacity of Nuclei Taken from Intestinal Epithelium Cells of Feeding Tadpoles" (1962), by John B. Gurdon
By: Giselle Lee
| Published: Mar 16, 2017
In 1962 researcher John Bertrand Gurdon at the University of Oxford in Oxford, England, conducted a series of experiments on the developmental…
Cell nuclei--TransplantationGenetic EngineeringNuclear TransplantationUniversity College (University of Oxford)Xenopus laevis
Epigenetic Landscape
By: Adam R. Navis
| Published: Oct 30, 2007
The epigenetic landscape is a concept representing embryonic development. It was proposed by Conrad Hal Waddington to illustrate the various…
Waddington, C. H. (Conrad Hal), 1905-1975EpigeneticsCell differentiationEmbryologyDevelopmental Biology