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| Neoblast distribution | |
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 Distribution of Neoblasts in the planarian Schmidtea mediterranea. Neoblasts are found throughout the body, except for the pharynx (blue arrow) and the head tip. Neoblasts are labeled in red. Green labeling shows neoblasts in division. | |
| Details | |
| Gives rise to | Blastema |
| Anatomical terminology | |
Neoblasts (ˈniːəʊˌblæst) are adult stem cells found in planarian flatworms. They are the only dividing planarian cells, and they produce all cell types, including the germline.[1][2] Neoblasts are abundant in the planarian parenchyma, and comprise up to 30 percent of all cells.[1] Following injury, neoblasts rapidly divide and generate new cells, which allows planarians to regenerate any missing tissue.[1]
- ^ a b c Rink JC (2018). "Stem Cells, Patterning and Regeneration in Planarians: Self-Organization at the Organismal Scale". In Rink JC (ed.). Planarian Regeneration. Methods in Molecular Biology. Vol. 1774. New York, NY: Springer New York. pp. 57–172. doi:10.1007/978-1-4939-7802-1_2. ISBN 978-1-4939-7800-7. PMID 29916155. Retrieved 3 December 2023.
- ^ Sánchez Alvarado, Alejandro; Kang, Hara (25 April 2005). "Multicellularity, stem cells, and the neoblasts of the planarian Schmidtea mediterranea". Experimental Cell Research. 306 (2): 299–308. doi:10.1016/j.yexcr.2005.03.020. PMID 15925584.