Induction of settlement and metamorphosis of the pacific oyster, Crassostrea gigas (Thunberg), by L-DOPA and catecholamines.
Journal of Experimental Marine Biology and Ecology (1985)
Abstract
Oyster larvae were treated with selected neuroactive compounds and structural analogs to test the ability of these drugs to induce settlement and metamorphosis. L-3,4-Dihydroxyphenylalanine (L-DOPA) induced both settlement (a behavioral response) and metamorphosis (a morphogenetic response). In contrast, epinephrine and norepinephrine induced metamorphosis only, without settlement. A model of natural settlement and metamorphosis is proposed which considers both exogenous environmental cues and endogenous neuroactive factors
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