Transplantation stimulates interstitial cell migration in hydra
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Updated: Aug 9, 2026

Generation of Transgenic Hydra by Embryo Microinjection
Published on: September 11, 2014
T Fujisawa1, C N David, T C Bosch
1Department of Developmental Genetics, National Institute of Genetics, Shizuoka, Japan.
Abstract:
Migration of interstitial cells and nerve cell precursors was analyzed in Hydra magnipapillata and Hydra vulgaris (formerly Hydra attenuata). Axial grafts were made between [3H]thymidine-labeled donor and unlabeled host tissue. Migration of labeled cells into the unlabeled half was followed for 4 days. The results indicate that the rate of migration was initially high and then slowed on Days 2-4. Regrafting fresh donor tissue on Days 2-4 maintained high levels of migration. Thus, migration appears to be stimulated by the grafting procedure itself.
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