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ContentSnapshots, Annals of Botany, Volume 114, Issue 4, September 2014, Pages i–iv, https://doi.org/10.1093/aob/mcu188
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A generic plant cell division algorithm
doi:10.1093/aob/mcu078
Most available models for plant cell division are limited to symmetric division with isotropic growth, and often the actual growth of the cell wall is either not considered or is only updated intermittently in a separate time scale from that of the cell expansion mechanics. Abera et al. (pp. 605–617) develop a generic plant cell division algorithm based on biomechanics and ellipse fitting and compare the results with published data. The actual growth of the cell wall is simulated simultaneously with the cell expansion mechanics, and they find that the algorithm accounts for both symmetrically and asymmetrically dividing cells with isotropic and anisotropic growth. The algorithm is capable of producing different tissues with varying topological and geometrical properties.
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Modelling the primary vascular structure of plants
doi:10.1093/aob/mcu074
The process of vascular development in plants results in the formation of a specific array of bundles that run throughout the plant in a characteristic spatial arrangement. Cartenì et al. (pp. 619–627) present a spatially explicit reaction–diffusion model defining a set of logical and functional rules to simulate the differentiation of procambium, phloem and xylem, and their primary spatial patterns. The results show that the model is capable of reproducing most vascular patterns observed in plants, from primitive and simple structures to more complex and evolved ones. The simulations demonstrate, as a proof of concept, that a common genetic and molecular machinery can account for the intra- and interspecific variability of primary vascular arrangements.
