totipotency


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Synonyms for totipotency

the ability of a cell to give rise to unlike cells and so to develop a new organism or part

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References in periodicals archive ?
However, it is relevant in biological terms, since it reflects that totipotency of male gametophytes would not be restricted to the stage of vacuolate microspore-early bicellular pollen, as is widely accepted.
Thus the stage of totipotency is leapfrogged in order to go directly to the pluripotent stage.
Despite the fact that plant cells display a remarkable potential for cellular totipotency, behaviour of plant cells or explants in tissue culture medium is unpredictable.
34,36] Stem cells are classified according to their potency, where the hierarchic ordering ranges from totipotency (zygote and its offspring cells of the morula) to pluripotency (embryonic stem cells and embryonic germ cells) and multi-potency (haematopoietic and mesenchymal stem cells).
These changes in gene expression related transcriptional machinery, chromatin structure and the other cellular functions occurring during several cleavage stages are expected result in a unique chromatin structure capable of maintaining totipotency during embryogenesis and leading to differentiation during the postimplantation development.
The President's Council report draws a critical distinction between pluripotency, the capacity of a cell to give rise to many if not all the different cell types of the human body, and totipotency, the capacity of a zygote or other cell to develop as a complete, integrated, living being.
Crucial to this approach is discovering a way to reverse cell differentiation all the way to pluripotency, but not (as in cloning) even further back to totipotency.
This may perhaps explain why the cells of every tissue, in spite of totipotency, can not be readily cultured (e.
Totipotency is the ability of a cell to regenerate a whole new organism, an identical twin.
The latter is indeed "totipotent," but its totipotency arises from a non-totipotent cell.
Totipotency is also characteristic of cells from the next six cell divisions of the zygote.
The test for totipotency, developed with mouse embryonic stem cells, would involve injecting stem cells into another blastocyst.
Gurdon interpreted his results as proof that nuclei of differentiated cells can regain their totipotency.