Nematocyst discharge in Hydra does not require the presence of nerve cells
Birgit L. Aerne, Robert P. Stidwill, Pierre Tardent
Abstract
Birgit L. Aerne, Robert P. Stidwill, Pierre Tardent
Abstract
Abstract By parabiosis we have constructed Hydra that lack nerve cells but whose tentacles contain nematocytes (stinging cells). We were able to demonstrate that the nematocysts of these polyps can be triggered either mechanically or electrically. We conclude that nematocyst discharge in hydra does not require the presence of nerve cells.
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Abstract By parabiosis we have constructed Hydra that lack nerve cells but whose tentacles contain nematocytes (stinging cells). We were able to demonstrate that the nematocysts of these polyps can be triggered either mechanically or electrically. We conclude that nematocyst discharge in hydra does not require the presence of nerve cells.
Key concepts: Cnidocyte, Nematocyst, Lernaean Hydra, Parabiosis, Tentacle (botany), Nerve cells, Cell biology, Anatomy