1991Journal of Experimental ZoologyRequires access

Nematocyst discharge in Hydra does not require the presence of nerve cells

Birgit L. Aerne, Robert P. Stidwill, Pierre Tardent

Open publisher page 30 citations

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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What this paper is about

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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Available 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.

Key concepts: Cnidocyte, Nematocyst, Lernaean Hydra, Parabiosis, Tentacle (botany), Nerve cells, Cell biology, Anatomy

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