Results 81 to 90 of about 126 (114)
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Nuclear matrix organization of chromocenters in cultured murine fibroblasts
Cell and Tissue Biology, 2010The structural organization of the nuclear matrix of pericentromeric heterochromatin blocks (chromocenters) was examined in cultured murine fibroblasts. After 2 M NaCl extraction without DNase I treatment, chromocenters became extremely swollen and could not be recognized with conventional electron microscopy.
E. V. Sheval, V. Yu. Polyakov
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Genetic Control of the Formation and Reorganization of Chromocenter in Drosophila
Russian Journal of Genetics, 2001The chromocenter integrates the entire Drosophilagenome into a unit. The formation and reorganization of chromocenter are genetically determined. Currently, several mutations affecting the structure of chromocenter have been described. In this work, I present evidence on the time of the formation and reorganization of chromocenter in mitotic and ...
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[Dependence of the number of chromocenters on age and size of cell nucleus].
Acta histochemica. Supplementband, 1983On Feulgen-stained slides of adult rats' liver we determined the biggest and the smallest diameters each of 200 nuclei of hepatocytes. By using the table of Marzotko we got the real volume of the nuclei. Besides the volume we found the number of chromocentres in the nuclei.
P, Rother, G, Krüger, D, Benninghaus
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[The chromocenter structure in meiotic cells of Drosophila. Nonhomologous pairing].
Tsitologiia, 1993The chromocenter is known as an integration of chromosome precentromeric heterochromatin regions. The squash technique was used for light microscopic analysis of chromocentral structures in Drosophila oocytes and trophocytes. The females displayed different structures of autosome 2.
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Nature Plants
Heterochromatic condensates (chromocenters) are critical for maintaining the silencing of heterochromatin. It is therefore puzzling that the presence of chromocenters is variable across plant species. Here we reveal that variations in the plant heterochromatin protein ADCP1 confer a diversity in chromocenter formation via phase separation.
Weifeng Zhang +10 more
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Heterochromatic condensates (chromocenters) are critical for maintaining the silencing of heterochromatin. It is therefore puzzling that the presence of chromocenters is variable across plant species. Here we reveal that variations in the plant heterochromatin protein ADCP1 confer a diversity in chromocenter formation via phase separation.
Weifeng Zhang +10 more
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[Nuclear matrix organization of the chromocenters in cultured murine fibroblasts].
Tsitologiia, 2010In the current work, the structural organization of nuclear matrix of pericentromeric heterochromatin blocks (chromocenters) inside cultured murine fibroblasts was investigated. After 2 M NaCl extraction without DNase I treatment, chromocenters were extremely swelled, and it was impossible to detect them using conventional electron microscopy.
E V, Sheval', V Iu, Poliakov
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[Genetic control of formation and reorganization of the chromocenter in drosophila].
Genetika, 2002The chromocenter integrates the entire Drosophila genome into a unit. The formation and reorganization of chromocenter are genetically determined. Currently, several mutations affecting the structure of chromocenter have been described. In this work, I present evidence on the time of the formation and reorganization of chromocenter in mitotic and ...
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[Chromocenters of interphase nuclei in the mouse liver contain satellite DNA].
Molekuliarnaia biologiia, 1990In isolated interphase mouse liver nuclei after hypotonic treatment only the chromocenters belonging to the pericentromeric heterochromatin remain in dense form while the main mass of a chromatin is completely decondensed. The centromeric nature of these chromocenters is demonstrated by their capability for C-banding and for hybridization with a ...
E V, Stefanova, Iu S, Chentsov
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Determinants and implications of chromocenter association in plant cell nuclei
Giornale botanico italiano, 1996CECCARELLI, Marilena +2 more
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