planarian

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The resulting phenotype is characterized by hyperproliferation of neoblasts (planarian stem cells), tissue disorganization and a significant accumulation of postmitotic cells with impaired differentiation capacity.

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Definitions (5)

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  1. noun Any of various small, chiefly freshwater turbellarian flatworms of the order Tricladida, having soft, broad, ciliated bodies, a three-branched digestive cavity, and the ability to regenerate body parts.

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Examples (12)

  • The process begins when adult stem cells divide into two new cells (daughter cells): one becomes like its mother (a stem cell), while the other will move on to give rise to the cells that will serve specific functions in planarian life. —  University of Utah - UNews RSS Feed
  • The scientists have identified two genes, Smed-PTEN-1 and Smed-PTEN-2, capable of regulating stem cell function in the planarian Schmidtea mediterranea. —  innovations-report
  • The resulting phenotype is characterized by hyperproliferation of neoblasts (planarian stem cells), tissue disorganization and a significant accumulation of postmitotic cells with impaired differentiation capacity. —  innovations-report
  • In animals in which PTEN function is abrogated, the HHMI / University of Utah and Forsyth researchers also detected a significant increase in the number of cells expressing the planarian Akt gene homolog (Smed-Akt). —  innovations-report
  • Altogether, the data reveal roles for PTEN in the regulation of planarian stem cells that are strikingly conserved to mammalian models. —  innovations-report
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Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. From New Latin Plānāria, genus name, from feminine of Late Latin plānārius, on level ground, from plānus, flat; see pelə-2 in Indo-European roots.

Toggle Century etymologies Century Dictionary (1)

  1. from Late Latin planarius, flat (see planary), + -an.
 

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/pləˈneɪriən/
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