Dedifferentiation and Redifferentiation of Cells in Hydra viridis

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Science  13 Dec 1963:
Vol. 142, Issue 3598, pp. 1481-1483
DOI: 10.1126/science.142.3598.1481


The interstitial cell of the green hydra is formed by dedifferentiation of specialized gastrodermal cells. Similarly, the epidermal epitheliomuscular cells are probably formed by direct difjerentiation of algae-laden digestive cells that lose their algae and enclosed food droplets, migrate to the periphery of the animal, and begin the mucous secretion characteristic of epidermal cells.