neoblast


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neoblast

(ˈniːəʊˌblæst)
n
1. (Zoology) zoology any large and undifferentiated stem cell in certain worms, esp planarian worms, involved in regeneration and repair
2. (Geological Science) geology a crystalline grain in metamorphic rock formed more recently than the surrounding rock
References in periodicals archive ?
This transition is marked by the appearance of sparse and tiny neoblast of chlorite and rare andalusite in dotted slates, which are gradually replaced by medium- to coarse-grained schists where porphyroblasts of plagioclase, muscovite and cordierite are widespread and easily recognized to the naked eye.
Deciphering the molecular machinery of stem cells: a look at the neoblast gene expression profile.
Some investigations have linked asexuality to the inversion of some genetic factors that otherwise inhibit the transformation of neoblasts into germ cells in fissiparous specimens (Grasso and Benazzi, 1973).
This amazing plasticity relies on the presence of a population of adult pluripotent stem cell, the neoblasts, which are able to become any type of cell.
The study, entitled "zic-1 Expression in Planarian Neoblasts after Injury Controls Anterior Pole Regeneration," was reported in PLOS Genetics.
The team found that the worms' stem cells, known as neoblasts, march out, multiply, and start rebuilding tissues lost to amputation.
Overlapping and divergent actions of estrogens and the neurotrophins on cell fate and p53-dependent signal transduction in conditionally immortalized cerebral cortex neoblasts.