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Fig. 6. Confocal microscopy of an Acridine Orange-stained living cyprid cement
gland. The larva was immobilized on a cover slip using Kwik Sil and imaged.
(A) Unstimulated cement gland within the living cyprid. (B) The cyprid was
stimulated with dopamine (1 mmol l1) and imaged 15 min
later. Note the brightly stained secretory vesicles in the control gland (A)
and their loss and the appearance of large vacuoles after stimulation.