Skip Navigation



AOBPreview published online on March 18, 2009
Annals of Botany, doi:10.1093/aob/mcp054
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
103/8/1173    most recent
mcp054v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Mathieu, A.
Right arrow Articles by de Reffye, P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Mathieu, A.
Right arrow Articles by de Reffye, P.
Agricola
Right arrow Articles by Mathieu, A.
Right arrow Articles by de Reffye, P.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author 2009. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

A dynamic model of plant growth with interactions between development and functional mechanisms to study plant structural plasticity related to trophic competition

A. Mathieu1,2,*, P. H. Cournède1,3, V. Letort1,3, D. Barthélémy4 and P. de Reffye3,5

1 Ecole Centrale Paris, Laboratory of Applied Mathematics, Grande Voie des Vignes, 92295 Châtenay Malabry, France
2 AgroParisTech, UMR Environnement et Grandes Cultures, INRA-AgroParisTech, 78850 Thiverval Grignon, France
3 INRIA Saclay Île-de-France, Digiplante, 91893 Orsay, France
4 INRA, UMR AMAP, Montpellier, F-34000, France
5 CIRAD, UMR AMAP, Montpellier, F-34000, France

* For correspondence. Email amelie.mathieu{at}agroparistech.fr

Received: 13 November 2008    Returned for revision: 19 December 2008    Accepted: 22 January 2009   

Background and Aims: The strong influence of environment and functioning on plant organogenesis has been well documented by botanists but is poorly reproduced in most functional–structural models. In this context, a model of interactions is proposed between plant organogenesis and plant functional mechanisms.

Methods: The GreenLab model derived from AMAP models was used. Organogenetic rules give the plant architecture, which defines an interconnected network of organs. The plant is considered as a collection of interacting ‘sinks’ that compete for the allocation of photosynthates coming from ‘sources’. A single variable characteristic of the balance between sources and sinks during plant growth controls different events in plant development, such as the number of branches or the fruit load.

Key Results: Variations in the environmental parameters related to light and density induce changes in plant morphogenesis. Architecture appears as the dynamic result of this balance, and plant plasticity expresses itself very simply at different levels: appearance of branches and reiteration, number of organs, fructification and adaptation of ecophysiological characteristics.

Conclusions: The modelling framework serves as a tool for theoretical botany to explore the emergence of specific morphological and architectural patterns and can help to understand plant phenotypic plasticity and its strategy in response to environmental changes.

Key words: Trophic plasticity, plant growth, functional–structural models, dynamic system, interactions, GreenLab


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.