Ln certain strains (nd) of Paramecium tetraurelia all secretory organelles (trichocysts) can be
detached from the cell surface and then reattached synchronously. To account for the lability …

We present the first evidence that secretory organelle docking at the cell membrane can be
reversed in vivo. In nondischarge (nd) mutants of Paramecium tetraurelia all trichocysts can …

Stationary-phase cells of Paramecium tetraurelia have most of their many secretory vesicles
(" trichocysts") attached to the cell surface. Log-phase cells contain numerous unoccupied …

The secretory organelles (trichocysts) of Paramecium tetraurelia, wild type (7S) and some
mutant cells (non-discharge strains, nd), were isolated with their intact membranes using a …

We present for the first time a method for isolation of the membranes of extrusive organelles
(trichocysts) from sterile culture of different strains of Paramecium tetraurelia. First …

Wild-type and selected mutants of Paramecium tetraurelia were subjected to detailed
analysis of the trichocyst phenotype. The characteristics of morphology, saltatory motility …

The trichocysts of Paramecium tetraurelia constitute a favorable system for studying
secretory process because of the numerous available mutations that block, at various …

The secretory contents (" matrix") of Paramecium tetraurelia trichocysts expand by a factor of
4.5 when they undergo a Ca2+-mediated decondensation in the course of exocytosis. This …

Paramecium, like other ciliates, has a system of regulated secretion. The secretory storage
granules, known as trichocysts, are of large size and elaborate architecture and occupy in …

We have developed a simple and rapid procedure for the isolation of a pure fraction of
Paramecium trichocysts (mature secretory vesicles) with their membranes. Since in wild-type …