title: Contact pressure models for spiral phyllotaxis and their computer simulation.
abstract: We present a simple, biologically motivated model for the creation of phyllotactical patterns in capitula and their computer simulation. An in-depth investigation of Ridley's contact pressure model is performed and a refinement of contact pressure between primordia on the basis of local centroidal Voronoi relaxation is presented. Using this method in combination with Hofmeisters rule for placing new primordia creates stable patterns with Fibonacci spirals of high degree for a large range of initial conditions.
authors.affiliation: Department of Computer Science, Dresden University of Technology, D-01062 Dresden, Germany. hh10@inf.tu-dresden.de
authors.forename: Heino
authors.initials: H
authors.lastname: Hellwig
authors.forename: Ralph
authors.initials: R
authors.lastname: Engelmann
authors.forename: Oliver
authors.initials: O
authors.lastname: Deussen
mesh_terms: D002450:Cell Communication; D003198:Computer Simulation; D008954:Models, Biological; D063245:Plant Development; D010944:Plants / Q000033:anatomy & histology*; D011312:Pressure