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2221
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2222“…Although this cell line has a normal cycle time averaging approximately 15 h, cell division was rarely observed among lone surviving cells until 72 h after exposure. …”
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2223
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2224por Guo, Tong, Gregg, Christopher, Boukh-Viner, Tatiana, Kyryakov, Pavlo, Goldberg, Alexander, Bourque, Simon, Banu, Farhana, Haile, Sandra, Milijevic, Svetlana, San, Karen Hung Yeung, Solomon, Jonathan, Wong, Vivianne, Titorenko, Vladimir I.“…We define the dynamics of spatial and temporal reorganization of the team of proteins and lipids serving peroxisome division. The peroxisome becomes competent for division only after it acquires the complete set of matrix proteins involved in lipid metabolism. …”
Publicado 2007
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2225“…If colchicine was added 4 hours before the peak of mitoses, up to 80 per cent of all cells accumulated in mitotic division stages. By use of single and double labeling techniques, it was shown that synchrony of cell divisions resulted from depression in the rate of DNA synthesis by 5-aminouracil, which brought about an accumulation of cells in the S phase of the cell cycle. …”
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2226por Cameron, Ivan L.“…This technique of chemical synchronization of cells in mass cultures makes feasible detailed biochemical analysis of events leading to nuclear DNA replication and cell division.…”
Publicado 1965
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2227“…The division of Tetrahymena pyriformis GL cells was synchronized with either seven hypoxic or five hyperthermic (heat) shocks. …”
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2228“…These results suggest the presence of programmed cell division not immediately cued by extracellular influence.…”
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2229“…The lethal actions of mitomycin C and actinomycin D were followed during the division cycle of HeLa cells. The cells were most susceptible to a 2 hr pulse of mitomycin C during the G(1) phase, whereas their sensitivity to actinomycin D was most pronounced in the S phase. …”
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2230por Jeffery, William R.“…Inhibition of the progression of DNA synthesis with M + U in exponentially growing cells, in which one S period usually occurs between two successive divisions, or in heat-shocked cells, when successive S periods are known to occur between divisions, resulted in the complete suppression of the following division. …”
Publicado 1972
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2231“…Cell division in vegetative filaments of the green alga Oedogonium cardiacum is presented as an experimental system. …”
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2232“…These eggs complete maturation division after insemination and this is followed by fusion of male and female pronuclei (5, 8). …”
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2233
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2234Publicado 1983“…Analysis by flow cytometry indicates that during taxol deprivation there is an accumulation of cells in G2 + M phase but that the cells are able to leak through the block in the absence of cell division and further increase their DNA content beyond the tetraploid amount. …”
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2235Publicado 1989“…A laser has been used to perturb the centrosome movements that determine the pattern of early embryonic divisions. The results support a previously proposed model in which a centrosome rotates towards its correct position by shortening of connections, possibly microtubules, between a centrosome and a defined site on the cortex of the embryo.…”
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2236Publicado 1994“…In sum, Nuf2 is a protein associated with the SPB that is critical for nuclear division. Anti-Nuf2 antibodies also recognize a mammalian 73-kd protein and display centrosome staining of mammalian tissue culture cells suggesting the presence of a protein with similar function.…”
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2237Publicado 1996“…We propose that the active species is the "monomeric" form, and that the increasing oxidative metabolism within maturing peroxisomes causes dimer formation and inhibition of further organelle division.…”
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2238“…One case of myeloblastic leucemia showed such an amount of an abnormal type of amitosis as to suggest the disordered cell division of neoplasms. 5. In this case transfusions were correlated with a maturation of myeloblasts into myelocytes, with an increase of the oxidase reaction, and with an increase in amitosis.…”
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2239“…Myosin II in injected epithelial cells showed a diffuse distribution throughout cell division. All treated, well-adherent cells underwent cleavage-like activities and most of them divided successfully. …”
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2240por Bähler, Jürg, Steever, Alexander B., Wheatley, Sally, Wang, Yu-li, Pringle, John R., Gould, Kathleen L., McCollum, Dannel“…Here we present the identification of three new temperature-sensitive mutants defective in localization of the division plane. All three mutants have mutations in the polo kinase gene, plo1, and show defects very similar to those of mid1 mutants in both the placement and organization of the medial ring. …”
Publicado 1998
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