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Center for Research in Biological Systems
University of California, San Diego
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La Jolla, CA 92093-0608, USA
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CIL:36259
NCBI Organism Classification
Vorticella convallaria
Biological Process
cortical cytoskeleton organization
Cellular Component
cell cortex
Mitochondria of Vorticella convallaria like other ciliates, have tubular cristae arising from their inner membranes. However, they also have a bundle of filaments (DNA?) that extend through the center...
CIL:36261
NCBI Organism Classification
Vorticella convallaria
Biological Process
macronucleus organization
Cellular Component
macronucleus
Only the macronucleus contains nucleoli which is the site of ribosomal RNA synthesis and ribosome subunit assembly. This EM also contains the distal end of the food vacuole forming cytopharynx which c...
CIL:36268
NCBI Organism Classification
Vorticella convallaria
Biological Process
response to food
Cellular Component
oral apparatus
Food vacuoles arise from the single membrane that lines the cytopharynx. Vesicles, similar to discoidal vesicles, attach to the cytopharyngeal microtubules (lamellar clumps) that arise from the dorsal...
CIL:36275
NCBI Organism Classification
Vorticella microstoma
Biological Process
myofibril contraction
Cellular Component
myofibril
Freeze fracture of Vorticella microstoma. This cell had been placed in a relaxing medium of saturated sodium pyrophosphate plus 0.01M EDTA (Stain Tech. 47:37, 1972) for 3 hours. A myoneme enclosed by ...
CIL:36277
NCBI Organism Classification
Vorticella convallaria
Biological Process
contractile vacuole organization
Cellular Component
contractile vacuole
The contractile vacuole pore is supported on its cytosolic side by a coil of microtubules and other microtubules extend from the pore to the CV membrane. The plasma membrane and CV membrane cover the ...
CIL:36283
NCBI Organism Classification
Vorticella convallaria
Biological Process
contractile system
Cellular Component
endoplasmic reticulum
The ER tubules in the spasmoneme bear elements of the linkage complex, both the mid piece and rails. These elements are more disperse than in the body of the cell. The fibers from the mid piece pass i...
CIL:36226
NCBI Organism Classification
Tetrahymena pyriformis
Biological Process
cytoplasm organization
Cellular Component
lysosome
The acidosome-like vesicle has a bull’s eye appearance with the invagination appearing in the middle of the vesicle. Other vesicles contain multiple layers resembling multilipid layers. Two vesicles...
CIL:36230
NCBI Organism Classification
Tetrahymena pyriformis
Biological Process
digestive system process
Cellular Component
cytopharynx
The deep fiber is associated with the cytopharyngeal membrane (see Smith and Bunse, Trans. Am. Microsc. Soc. 102:264-271, 1983). This membrane has acidosome-like vesicles docked at its cytosolic surfa...
CIL:36233
NCBI Organism Classification
Tetrahymena pyriformis
Biological Process
contractile vacuole organization
Cellular Component
contractile vacuole pore
The two CV pores of a cell. An impression of the helically wound microtubules are detectable in the right pore. TEM taken on 4/21/78 by R. Allen with Hitachi HU11A operating at 60kV. Neg. 21,750X. Bar...
CIL:36235
NCBI Organism Classification
Tetrahymena pyriformis
Biological Process
contractile vacuole organization
Cellular Component
contractile vacuole
Higher magnification view of the spongiome of the Contractile Vacuole Complex. The spongiome is composed of a three dimensional array of tubules that are continuous with the CV membrane. Many tubules ...
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