Results 291 to 300 of about 14,699 (328)
Some of the next articles are maybe not open access.
Cleavage furrow: Calcium as determinant of site
Experimental Cell Research, 1972Abstract Direct application of EDTA at precise locations on the cortex at different times during the division of sea urchin eggs was accomplished with a capillary filled with agar-EDTA using a micromanipulator. Treatment with EDTA prior to mid-metaphase arrested cleavage irreversibly. The effects of EDTA applications during metaphase varied according
G. Watchmaker, G. Clothier, H. Timourian
openaire +3 more sources
Establishment of cleavage furrows by the mitotic spindle
Journal of Experimental Zoology, 1974AbstractThe purpose of this investigation was to determine the capacity for furrow establishment of the mitotic spindle in several kinds of dividing animal cells. To this end the cell shape was altered so that equatorial surface was brought in contact with the spindle and its normal geometrical relation with the asters changed. In flattened Tripneustes
R. Rappaport +3 more
openaire +3 more sources
Site selection for the cleavage furrow at cytokinesis
Trends in Cell Biology, 2005The question of how the site for division of the cytoplasm is determined at the end of mitosis has been studied for over a century, and it remains an active, controversial and fascinating problem in cell biology. This problem draws on the use of several model cell types, with the goal of understanding and identifying how the cell cycle regulates ...
David R. Burgess +3 more
openaire +3 more sources
Cleavage furrow positioning in dividing Dictyostelium cells
Cytoskeleton, 2023AbstractAccurate placement of the cleavage furrow is crucial for successful cell division. Recent advancements have revealed that diverse mechanisms have evolved across different branches of the phylogenetic tree. Here, we employed Dictyostelium cells to validate previous models.
Akiko Okada, Shigehiko Yumura
openaire +2 more sources
Targeting of dystroglycan to the cleavage furrow and midbody in cytokinesis
The International Journal of Biochemistry & Cell Biology, 2008Dystroglycan is a cell adhesion molecule that interacts with ezrin family proteins and also components of the extracellular signal-regulated kinase pathway. Ezrin and extracellular signal-regulated kinase are both involved in aspects of the cell division cycle. We therefore examined the role of dystroglycan during cytokinesis.
J.R. Higginson +2 more
openaire +3 more sources
Visualization of cleavage furrow proteins in fixed dividing spermatocytes
2017Cytokinesis separates the cytoplasmic organelles and the duplicated genome into two daughter cells at the end of cell division. In animal cell cytokinesis, assembly and constriction of the contractile apparatus must be finely coordinated with plasma membrane remodeling and vesicle trafficking at the cleavage furrow.
Frappaolo A +4 more
openaire +5 more sources
Effects of cytochalasin B on the cleavage furrow in mouse blastomeres
Roux's Archives of Developmental Biology, 1986Blastomeres isolated from two-cell mouse embryos were cultured until they started to cleave. When the cleavage furrow developed they were subjected to cytochalasin B (CB) and were studied with the electron microscope. The initial response to CB is that the furrow is more folded and microvillous than in the control. Later the blastomeres round up.
Maria Salomea Soltyńska +1 more
openaire +3 more sources
Experiments concerning the cleavage furrow in invertebrate eggs
Journal of Experimental Zoology, 1966AbstractDividing eggs of Echinarachnius parma, Hydractinia echinata, Cerebratulus fuscus and Mytilus edulis were subjected to experiments designed to yield additional information concerning the cytoplasm in the cleavage plane. Answers to the following questions were sought: (1) Will the base of the furrow cut itself upon a needle placed in its path at ...
openaire +3 more sources
Journal of Experimental Zoology, 1971
AbstractCleavage of the highly telolecithal egg of a squid is meroblastic and stops when the base of each furrow cuts through the cytoplasm of the blastodisc and contacts the yolk. The base of each furrow is composed of a band of 50 Å filaments which apparently are linked to the surface membrane.
openaire +3 more sources
AbstractCleavage of the highly telolecithal egg of a squid is meroblastic and stops when the base of each furrow cuts through the cytoplasm of the blastodisc and contacts the yolk. The base of each furrow is composed of a band of 50 Å filaments which apparently are linked to the surface membrane.
openaire +3 more sources
A unilateral cleavage furrow in embryos of S. droebachiensis
Journal of Experimental Zoology, 1983AbstractEmbryos of the sea urchin, Strongylocentrotus droebachiensis, develop normally at temperatures ranging from 8°C to 0°C. An embyro cultured at 8°C cleaves symmetrically about its equator whereas one cultured at 0°C cleaves unilaterally. In embryos cultured at 8°C the mitotic apparatus (MA) occupies the entire cell volume at late anaphase whereas
Robert G. Summers, John A. Anstrom
openaire +2 more sources