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Cell Process
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Center for Research in Biological Systems
University of California, San Diego
9500 Gilman Drive
La Jolla, CA 92093-0608, USA
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CIL:36441
NCBI Organism Classification
Xenopus laevis
Biological Process
mitosis
Cellular Component
microtubule
Confocal image of a Xenopus laevis egg imaged at 119 min post fertilization. The embryos are stained for alpha-tubulin (green) and gamma-tubulin (red).
CIL:36462
NCBI Organism Classification
Xenopus laevis
Biological Process
first cell cycle
Cellular Component
microtubule
This image is part of a large data set of Xenopus laevis eggs imaged at various times post fertilization (the first number of the file name corresponds minutes, eg 30_2 is 30 min post fertilization). ...
CIL:36464
NCBI Organism Classification
Xenopus laevis
Biological Process
first cell cycle
Cellular Component
microtubule
This image is part of a large data set of Xenopus laevis eggs imaged at various times post fertilization (the first number of the file name corresponds minutes, eg 30_2 is 30 min post fertilization). ...
CIL:36646
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
macronucleus organization
Cellular Component
macronucleus
The macronucleus is the largest organelle in the P. multimicronucleatum cell and can measure 35µm long by 12µm wide. A small fraction of a macronucleus is seen in this micrograph. The chromatin appe...
CIL:36647
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
nuclear pore distribution
Cellular Component
macronucleus
Grazing thin section through the nuclear envelope of a macronucleus. Nuclear pores are packed so tightly that they often form a hexagonal array with 6 pores surrounding a central pore. The pores often...
CIL:36653
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
nuclear division
Cellular Component
micronucleus
The micronuclear separation spindle. Nuclear pores are not empty perforations but are closed by nonetchable material. The separation spindle must elongate as microtubules lengthen and/or slide against...
CIL:36656
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
conjugation
Cellular Component
cell-cell contact zone
In the contact area between two conjugating cells the tips of the ridges all fuse forming openings between the two cells. TEM taken on 3/4/80 by R. Allen with Hitachi HU11A operating at 75kV. Neg. 8,5...
CIL:36665
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
detection of symbiont
Cellular Component
symbiont-containing vacuole membrane
The first culture of P. multimicronucleatum which I had obtained from Carolina Biological Supply House contained a bacterial endosymbiont that resided specifically in the space between the two membran...
CIL:36668
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
plasma membrane organization
Cellular Component
plasma membrane
In quick-freeze deep-etch preparations in which cells are slam frozen the pellicle and the plasma membrane tends to be flattened. The double rings are present but only the outer ring of IMPs stand out...
CIL:36670
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
plasma membrane organization
Cellular Component
plasma membrane
In a conventional freeze fracture view the membrane around the trichocyst tip is decorated with striations and IMPs. These decorations are found at the site where the trichocyst tip is associated with...
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