Similar polyploid mitotic divisions, but not depolyploidizing divisions, were observed during adult ileum development in the mosquito Culex pipiens.
Indeed, the A. thaliana stem cells divide much less frequently than the surrounding cells [4, 19], and most endodermis cortical initial divisions are observed a few days after germination, whereas the cortical layer, an outer cell layer, is established 1 week later [2, 73].
Furthermore, in this strain background a high degree of polar divisions was observed, leading to consecutive minicelling.
Circadian gated cell divisions are observed in nearly all organisms.
Finally, as expected the vast majority of cell divisions was observed in the cambium.
In contrast, in C15 explants no cell divisions were observed and SE development seemed arrested before cell reactivation.
In the xylem area, practically no post-cambial divisions were observed and radial cell files were generally continuous with the adjacent cambial files.
In contrast, in mature cuttings, although some cell divisions were observed, no primordia were formed during the time period of the experiment.
In addition, our findings indicate that Hlx1 may also positively influence EC proliferation, because a decrease in cell divisions was observed in the ISVs of hlx1 morphant embryos.
Interestingly, the mitotic activity of root tips was not reduced in the presence of Na2SeO4 (Fig. 1a, c); however, the significant reduction of the number of divisions was observed in the presence of Se(IV) (Fig. 1b).
