totipotency


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to·ti·po·ten·cy

, totipotence (tō'tē-pō'ten-sē, tō-tip'ō-tens),
The ability of a cell to differentiate into any type of cell and thus form a new organism or regenerate any part of an organism; for example, a fertilized ovum, or a small excised portion of a Planaria, which is capable of regenerating a complete new organism.
[L. totus, entire, + potentia, power]

totipotency

/to·ti·po·ten·cy/ (to″tĭ-po´ten-se) the ability to differentiate along any line or into any type of cell.totip´otenttotipoten´tial

totipotency

[tō′tipō′tənsē]
the ability of a cell, particularly a zygote, to differentiate into any of a number of specialized cells and thus form a new organism or regenerate a body part. Also called totipotence.

to·ti·po·ten·cy

, totipotence (tō-tip'ŏ-tĕn-sē, -tĕns)
The ability of a cell to differentiate into any type of cell and thus form a new organism or regenerate any part of an organism.
[L. totus, entire, + potentia, power]

totipotency

the ability of a cell or tissue to give rise to adult structures. The capacity is often lost in adult cells (particularly in animals) which, having differentiated into one specific type, cannot change to another type of cell. see GURDON, CELL DIFFERENTIATION.

totipotency (tōˈ·ti·pōˑ·ten·sē),

n ability of a cell, specifically a zygote, to develop and differentiate into a complete organism or to regenerate a body part. Also called
totipotence.
References in periodicals archive ?
Perhaps, behind androgenesis there is just an alternative survival mechanism based on the totipotency of plant cells and on the capacity of primitive plants to develop a haploid multicellular structure during the extended haploid phase of their life cycle.
Since the cells are being dedifferentiated to the pluripotent stage, a technical issue will be regulating the process so the cells do not continue on to totipotency, at which point the question of embryo destruction arises.
The first human egg was fertilized in vitro in 1968 and raised the possibility of exploitation of totipotency of stem cells.
The workers of large colonies do show a loss of totipotency, especially with respect to reproductive potential (Crespi and Yanega, 1995; Bourke, 1999), and they do show a loss of structures associated with reproduction (e.
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.
In contrast to that, a process of regenerating a whole plant from plant cells or tissue, which takes advantages of the totipotency of many plant cells, comprises a series of important events and phases, such as the formation of shoot and then root meristems, the coordinated division, expansion and differentiation of cells, which require the careful selection of the appropriate working conditions, e.
These species have a "worker" caste, but such wasps appear to retain reproductive totipotency (Gadagkar 1991a, Reeve 1991).
Assessment of the developmental totipotency of neural cells in the cerebral cortex of mouse embryo by nuclear transfer.
This process (microspore embryogenesis) is widely exploited in plant breeding to generate homozygous (doubled-haploid) lines in a single generation, and also provides a unique system to understand plant totipotency and early cell fate decisions.