Fig. 4. Quantitative analysis of the plus-end types of cell-plate-associated microtubules. At each stage, three different cells were analysed, except for the solid-phragmoplast stage, for which four cells were analysed. (A) Percentages of microtubule plus-end types seen at each stage of cytokinesis. (B) Percentage of microtubule plus-end types that end within a cell-plate assembly matrix. (C) Percentages of microtubule plus ends that do not terminate within a cell-plate assembly matrix. n, number of microtubules counted in each stage.