the larval receptors mediating this induction were pharmacologically characterized by testing the ability of a variety of adrenergic agonists and selected structural analogs of epinephrine and norepinephrine to induce oyster metamorphosis , and by testing the ability of various adrenergic antagonists to block the induction of metamorphosis by epinephrine .
C0028351
norepinephrine
C0014563
epinephrine