Contractile vacuole pore in face view illustrating the microtubular ribbons that extend from the pore to the CV membrane, the coil of microtubules that surrounds the pore and smaller pellicular pores ...

11 micrographs are views of a serially-sectioned contracted Vorticella convallaria cell that show the main features of this cell. This figure shows 5 food vacuoles; 3 segments of the macronucleus; per...

Tangentially sectioned dictyosomes that give rise to cupulas (see Favard, P. and N. Carasso, J. Microscopie 3:671-696, 1964) and coated vesicles. TEM taken on 4/2/71 by R. Allen with Hitachi HU11A ope...

Grazing section through an accumulation of uncoated cupulas in the process of attachment to and fusion with a food vacuole membrane. The small round pores apparently represent early stages of fusion o...

At its most distal extremity the stalk ends in a clump of sheath-like fibers with embedded bacteria. The spasmoneme itself seems to end in a tight association with its surrounding plasma membrane. Thi...

Cytopharynx with numerous folded membrane ribs subtended by five or so microtubules. These microtubules have arms that bind to other microtubules and to the membrane of the cytopharynx and to surround...

A cross-section and tangential views of three other linkage complexes. The mid piece sits in an indentation of the ER membrane on a bed of 5 slats that pass through the membrane. Rails affix the ER me...

The spongiome of membranes that surround the CV are probably not preserved in their native state when collidine buffered fixative is used. However, suggestions of decorated tubules as well as smooth t...

Modified basal bodies, composed of a circle of 9 single microtubules, occur along the length of the stalk and these basal bodies lie against the alveolar-bearing side of the stalk. Fibers pass into th...

11 micrographs are views of a serially-sectioned contracted Vorticella convallaria cell that show the main features of this cell. This figure shows 4 food vacuoles; 3 segments of macronucleus; cytopha...