Toward a 3D model of phyllotaxis based on a biochemically plausible auxin-transport mechanism

• DOI: 10.1371/journal.pcbi.1006896
• Publication Date: 2019-04-18T17:28:07Z
• Authors: Félix P. Hartmann; Pierre Barbier de...; Cris Kuhlemeier
• Keywords: Phyllotaxis; Polar auxin transport; Organogenesis

Polar auxin transport lies at the core of many self-organizing phenomena sustaining continuous plant organogenesis. In angiosperms, shoot apical meristem is a potentially unique system in which two main modes auxin-driven patterning—convergence and canalization—co-occur coordinated manner fully three-dimensional geometry. epidermal layer, convergence points form, from canalized towards inner tissue. Each these patterning processes has been extensively investigated separately, but integration both remains poorly understood. We present here first attempt model during phyllotaxis. base our simulations on biochemically plausible mechanism proposed by Cieslak et al. (2015) generates canalization patterns. are able to reproduce most dynamics PIN1 polarization meristem, we explore how cell layers act concert addition, discuss initiating veins connect already existing vascular system.