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On the interpretation of the asymmetrical leaf of Begonia By D'Arcy Thompson

On the interpretation of the asymmetrical leaf of Begonia By D'Arcy Thompson ActaBiotheoretica40: 329-332, 1992. © 1992 Kluwer Academic Publishers. Printed in the Netherlands. ON THE INTERPRETATION OF THE ASYMMETRICAL LEAF OF BEGONIA BY D'ARCY THOMPSON Denis Barab6, St6phane Daigle and Luc Brouillet Institut de recherche en biologie v6g6tale, Jardin botanique de Montr6al, 4101 est, rue Sherbrooke, Montr6al, Qu6bec, Canada, H1X 2B2 Received 6-Iil11-1992 Within the framework of theoretical and experimental analysis of asymmetry in plants, the Begonia leaf raises both biological and mathematical problems. Begonia comprises more than 1000 species. The majority of these species have asymmetrical leaves (fig. 1), however, some possess leaves that are more or less symmetrical. The asym- metrical leaves have attracted the attention of both mathematicians (Thompson, 1961; Jean, 1987) and biologists (Barab6 et al., 1992; McLellan, 1990). Present models of leaf morphogenesis are based on symmetrical forms, and are difficult to apply to Begonia leaves (Barab6 et al., 1992; Cusset, 1986). From a mathematical standpoint, Thompson gave an explanation of the asymmetrical leaf based on the growth pattern of the two halves of the leaf. According to him (Thompson, 1961, p. 280): "For instance, the so-called asymmetrical leaf of Begonia in which one side of the leaf may be merely ovate while the other http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Biotheoretica Springer Journals

On the interpretation of the asymmetrical leaf of Begonia By D'Arcy Thompson

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References (5)

Publisher
Springer Journals
Copyright
Copyright
Subject
Philosophy; Philosophy of Biology; Evolutionary Biology
ISSN
0001-5342
eISSN
1572-8358
DOI
10.1007/BF00046332
Publisher site
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Abstract

ActaBiotheoretica40: 329-332, 1992. © 1992 Kluwer Academic Publishers. Printed in the Netherlands. ON THE INTERPRETATION OF THE ASYMMETRICAL LEAF OF BEGONIA BY D'ARCY THOMPSON Denis Barab6, St6phane Daigle and Luc Brouillet Institut de recherche en biologie v6g6tale, Jardin botanique de Montr6al, 4101 est, rue Sherbrooke, Montr6al, Qu6bec, Canada, H1X 2B2 Received 6-Iil11-1992 Within the framework of theoretical and experimental analysis of asymmetry in plants, the Begonia leaf raises both biological and mathematical problems. Begonia comprises more than 1000 species. The majority of these species have asymmetrical leaves (fig. 1), however, some possess leaves that are more or less symmetrical. The asym- metrical leaves have attracted the attention of both mathematicians (Thompson, 1961; Jean, 1987) and biologists (Barab6 et al., 1992; McLellan, 1990). Present models of leaf morphogenesis are based on symmetrical forms, and are difficult to apply to Begonia leaves (Barab6 et al., 1992; Cusset, 1986). From a mathematical standpoint, Thompson gave an explanation of the asymmetrical leaf based on the growth pattern of the two halves of the leaf. According to him (Thompson, 1961, p. 280): "For instance, the so-called asymmetrical leaf of Begonia in which one side of the leaf may be merely ovate while the other

Journal

Acta Biotheoretica – Springer Journals

Published: May 1, 2004

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