词汇 | centrosome |
释义 | BETA Examples of centrosomecentrosome isn’t in the Cambridge Dictionary yet. You can help! Taken together, however, they suggest the possibility that intermediate-filament-like proteins are components of centrosomes. It is very unlikely that centrosome proteins are preserved unaltered in pure alcohol. The subsequent fate of the female centrosome is unclear, but it appears to lose both microtubule nucleating activity and reproductive ability. Nucleation of microtubules from mitotic centrosomes is modulated by a phosphorylated epitope. Although the paternal centrosome duplicated, the maternal centrosome in the centre of the egg aster did not divide. The anti-tubulin staining of the centrosomes was most intense at metaphase. The scratch assay was performed 2 weeks after infection and reorientation of the centrosome or the formation of protrusions were quantified. A small microtubule aster was observed in association with decondensed chromatin following nuclear transfer, suggesting the introduction of a somatic cell centrosome. Experimental separation of pronuclei in fertilised sea urchin eggs: chromosomes do not organise a spindle in the absence of centrosomes. The paternal centrosome seems to nucleate microtubules for positioning the male and female pronuclei. The data strongly suggest a role for the male centrosome in controlling the mechanism and localisation of post-fertilisation intracellular calcium waves. This -tubulin is either masked or stripped off after the centrosome's incorporation. However, lack of karyokinesis and cytokinesis led to the formation of a tetraploid nucleus, which now has two centrosomes. The maternal centrosome remaining after meiosis is active for several minutes, during which time it generates its own aster. The centrosomes then separate and the mitotic spindle is formed. Mitotic spindle poles are organized by structural and motor proteins in addition to centrosomes. The centrosomes between both pronuclei establish two new mitotic asters on opposite sides of the disassembling pronuclear envelops. However, little information is available on the microtubule nucleation ability of centrosomes of either male or female origin in maturing or pre-activated porcine oocytes. Our results indicate that the asymmetry in this case corresponds to the asymmetrical position of the nucleus and the centrosome prior to nuclear envelope breakdown. |
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