Yet we know radiation causes cancer, and it does so by affecting internal stem cell division rates.
Surrounding this region is an annular zone of cells with higher division rates, the anneau initial, or "initiating ring".
This theory proposes that the central region of the apical dome constitutes a mass of cells with relatively low division rates, the méristème d'attente, or "waiting meristem".
Features other than division rates characterize these zones: RNA and protein content are lower in the méristème d'attente than in the anneau initial, and the nucleoli are smaller.
Abd-B also non-cell-autonomously controls critical features within the niche, including centrosome orientation and division rates of germline stem cells.
The division rates highly those applications that develop new technologies or describe the novel application of existing technologies, rather than projects that involve product development.
The human chondrocytes were fluorescently labeled with CFSE and then cultured in vitro; once analyzed, the histogram showed a widening of fluorescence level, indicating that the cells with various division rates were included in the cell population.
Moreover, we find that unequal partitioning at cell division and sharp division rates shrink the region of the parameter space where the population exhibits bistable behavior, a characteristic feature of networks with positive feedback architecture.
To compare the characteristics of the cell groups with different division rates, the chondrocytes were sorted into groups according to the fluorescence intensity (30 or 45percentt of cells plotted in the left and right sides of histogram).
Different cell division rates in different tissues may lead to a difference in the extent of loss of transgene.
Like the bacterial cell numbers, the bacterial division rates were negligible in the controls and in the axenic diatom assemblage.
