we used aminoethyldextran ( aed ) as a secretagogue for the simultaneous exocytosis of a great proportion of secretory organelles ( trichocysts ) from paramecium tetraurelia cells and we applied freeze-fracturing and ultrathin sectioning for a quantitative analysis of the re-arrangement of ultrastructural details within the cell membrane during re-insertion of new trichocysts .
C0015283
exocytosis
C0007634
cells