Growth-Algorithm Model of Leaf Shape

Details Growth-Algorithm Model of Leaf Shape Growth-Algorithm Model of Leaf Shape

2010-04-25

arxiv.org/abs/1004.4388v1

Biology

Quantitative Biology

Tissues and Organs

21 pages, 9 figures

Scientific paper

The innumerable shapes of plant leaves present a challenge to the explanatory power of biophysical theory. A model is needed that can produce these shapes with a small set of parameters. This paper presents a simple model of leaf shape based on a growth algorithm, which governs the growth rate of leaf tissue in two dimensions and hence the outline of the leaf. The growth of leaf lobes is governed by the position of leaf veins. This model gives an approximation to a wide variety of higher plant leaf shapes. The variation of leaf shapes found in closely related plants is discussed in terms of variability in the growth algorithms. The model can be extended to more complex leaf types.

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