Thus, the prior cell division advantage was accumulated through the first three cell divisions after fertilization (Zernicka-Goetz, 2006).
But, for various reasons, Prior's division has stopped paying for new reconstruction projects, and current projects are running out of funds.
Single mesophyll cells of Z. elegans differentiated directly into TEs without prior cell division.
Previous studies have shown that Fz localizes at the posterior cortex of SOPs prior to division whereas Vang accumulates at the anterior apical cortex [8].
When the shift occured more than 9 (resp. 15) minutes prior to division, 50% (resp. 100%) of the cells arrested (Fig. 2g), implying that they did not have enough Cln2 to enter the next cell cycle.
The vast majority of unicells are small; being small means a faster replication time (food uptake-rate scales with surface area whereas the amount of growth required prior to division scales with volume).
Interestingly, dividing individuals reported previously generally dispersed the nuclei prior to division [25], [29], although cells with two polar sets of regularly arrayed nuclei have also been observed [29], as we have seen here.
These results are consistent with the hypothesis that in forskolin treated basilar papillae some supporting cells are stimulated to dedifferentiate and express stem cell markers, prior to division and production of new hair cells.
Considering the separation of these two genera is supported by some morphological/morphogenetic data, for example, presence or absence of thigmotactic cirri and the fusion pattern of macronuclear segments prior to division [47], [60], the distinction of both genera is reliable but their systematic positions remain unresolved.
In fact, the rate of persistent apical nuclear motion prior to division is higher in DNp150-expressing cells.
