Phyllotaxis, a model

Details Phyllotaxis, a model Phyllotaxis, a model

2009-07-27

arxiv.org/abs/0907.4765v1

Biology

Quantitative Biology

Tissues and Organs

11 pages, two figures, one table

Scientific paper

A model of the regular arrangement of leaves on a plant stem (phyllotactic patterns) is proposed, based on a new plant pattern algorithm. Tripartite patterning is proposed to occur by the interaction of two signaling pathways. Each pathway produces stimulated extracellular emission of like ligand upon activation of its respective receptor, as well as inhibiting such emission from the other pathway. Patterns arise spontaneously from zero density of activated receptor. All known phyllotactic patterns are reproduced, Fibonacci, distichous, decussate, and whorls, as well as the rare monostichy, with only one leaf directly above the previous.

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