Abstract
To clarify how cell division patterns affect ultimate leaf shape, we intended to establish a dynamic model of leaf development. To do this, input data are measured values with L. arcuata, while outputs are their final shape. This was conducted under following assumptions: 1) cell sizes in meristematic regions being identical, 2) sizes of daughter cells tending to recover to original, 3) numbers of cells not decreasing and 4) intercellular relationship being preserved. To prove how our model would reflect actual data, after data of varying situations of L. arcuata are incorporated, deviation from calculated values is compared with actual ones. Currently, the growth of leaf lamina for the leaf transverse direction was observed, however, that for the leaf longitudinal direction needs some more considerations. We are looking for factors that regulate the longitudinal growth, with speculating that a possible candidate for such factor is the cell shape.
