Regeneration of Hydra from aggregated cells

Nature New Biology 239:98-101 (1972)
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Abstract

• Aggregates of previously isolated cells of Hydra are capable, under suitable solvant conditions, of regeneration forming complete animals. In a first stage, ecto- and endodermal cells sort out, producing the bilayered hollow structure characteristic of Hydra tissue; thereafter, heads are formed (even if the original cell preparation contained no head cells), eventually leading to the separation of normal animals with head, body column and foot. Hydra appears to be the highest type of organism that allows for regeneration of the entire structure from random cell aggregates. The system is particularly useful for studying cell interactions, tissue polarity, pattern formation, and cell differentiation.

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Alfred Gierer
Max-Planck-Institute of Developmental Biology, Tuebingen, Germany

Citations of this work

The Hydra model - a model for what?Alfred Gierer - 2012 - International Journal of Developmental Biology 56:437-445.

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