Cellular growth and size in a filamentous organism: mathematical analysis and modeling.
In Bryales protonema , elongation rate plays an essential role in the determination of cell size. It regulates the intermitotic increase of apical cells and could act on nucleus movements. In constant growth conditions, the duration of the mitotic cycle of the apical cell is strongly correlated to the growth rate. However, the relationship between elongation rate and the rhythm of cellular division is not linear. In the apical cell, the distance of the nucleus from the apex is also correlated to the growth activity. This could determine the position of the daughter apical nucleus after mitosis.
D002453:Cell Cycle; D002455:Cell Division; D008433:Mathematics; D008954:Models, Biological; D059828:Plant Cells