A View of the Evolution of Chemoreceptors Based on Research with Cnidarians
Since Loomis (1955) discovered that reduced glutathione (GSH) was the specific activator of feeding in Hydra littoralis, research on cnidarian chemoreceptors has taken two lines. One, involving mostly work on hydra, is concerned with elucidating the mechanism by which the receptor is activated (see Lenhoff, 1974). The other is of a more comparative nature showing that numerous compounds activate feeding in a wide range of cnidarians.
KeywordsDopamine Tyrosine Glutathione Glycine Proline
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