JXB Advance Access published online on September 25, 2003
Journal of Experimental Botany, doi:10.1093/jxb/erg279
© 2003 by Oxford University Press
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1 Laboratoire d'Ecophysiologie des Plantes sous Stress Environnementaux (LEPSE), Unité Mixte de Recherche, 759 Institut National de la Recherche Agronomique - Agro Montpellier, 2 place Viala, 34060 Montpellier Cedex 1, France; Unidad Integrada Balcarce, Instituto Nacional de Tecnología Agropecuaria - Universidad Nacional de Mar del Plata, CC 276, 7620 Balcarce, Argentina
* To whom correspondence should be addressed. E-mail: turc{at}ensam.inra.fr.
Common features in the time-course of expansion of leaves which considerably differed in final area, due to phytomer position, growing conditions and genotype, were identified. Leaf development consisted of two phases of exponential growth, followed by a third phase of continuous decrease of the relative expansion rate. The rate and the duration of the first exponential phase were common to all phytomers, growing conditions and genotypes. Leaves differed in the rate and the duration of the second exponential phase. The decrease of the relative expansion rate during the third phase depended on neither genotype nor growing conditions. It was phytomer-dependent and was deduced from the rate of the second phase via a parameter common to all cases studied. Differences in final leaf area among growing conditions were linked to different expansion rates during the second exponential phase. The duration of the phases at any given phytomer position was the same for the two hybrids in different growing conditions. The dates of developmental events (initiation, end of the two exponential phases, full expansion), and the rate of the second exponential phase, were related to phytomer position, defining a strict pattern of leaf development at the whole plant level. Using this framework simplified the analysis of the response of leaf expansion to genotype and environment.
© 2003 Society for Experimental Biology
RESEARCH PAPER
A whole-plant analysis of the dynamics of expansion of individual leaves of two sunflower hybrids
2 Unité Mixte de Recherche Botanique et Bioinformatique de l'Architecture des Plantes (AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), Bd de la Lironde, 34398 Montpellier Cedex 5, France
3 Laboratoire d'Ecophysiologie des Plantes sous Stress Environnementaux (LEPSE), Unité Mixte de Recherche, 759 Institut National de la Recherche Agronomique - Agro Montpellier, 2 place Viala, 34060 Montpellier Cedex 1, France
4 Unidad Integrada Balcarce, Instituto Nacional de Tecnología Agropecuaria - Universidad Nacional de Mar del Plata, CC 276, 7620 Balcarce, Argentina
Abstract 
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  G. A. Pereyra-Irujo, L. Velazquez, L. Lechner, and L. A. N. Aguirrezabal Genetic variability for leaf growth rate and duration under water deficit in sunflower: analysis of responses at cell, organ, and plant level J. Exp. Bot., May 1, 2008; 59(8): 2221 - 2232. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J.-F. Barczi, H. Rey, Y. Caraglio, P. de Reffye, D. Barthelemy, Q. X. Dong, and T. Fourcaud AmapSim: A Structural Whole-plant Simulator Based on Botanical Knowledge and Designed to Host External Functional Models Ann. Bot., May 1, 2008; 101(8): 1125 - 1138. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. Rey, J. Dauzat, K. Chenu, J.-F. Barczi, G. A. A. Dosio, and J. Lecoeur Using a 3-D Virtual Sunflower to Simulate Light Capture at Organ, Plant and Plot Levels: Contribution of Organ Interception, Impact of Heliotropism and Analysis of Genotypic Differences Ann. Bot., May 1, 2008; 101(8): 1139 - 1151. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. Lechner, G. A. Pereyra-Irujo, C. Granier, and L. A. N. Aguirrezabal Rewatering Plants after a Long Water-deficit Treatment Reveals that Leaf Epidermal Cells Retain their Ability to Expand after the Leaf has Apparently Reached its Final Size Ann. Bot., May 1, 2008; 101(7): 1007 - 1015. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. HILLIER, D. MAKOWSKI, and B. ANDRIEU Maximum Likelihood Inference and Bootstrap Methods for Plant Organ Growth via Multi-phase Kinetic Models and their Application to Maize Ann. Bot., July 1, 2005; 96(1): 137 - 148. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. A. C. ALVES and T. L. SETTER Response of Cassava Leaf Area Expansion to Water Deficit: Cell Proliferation, Cell Expansion and Delayed Development Ann. Bot., October 1, 2004; 94(4): 605 - 613. [Abstract] [Full Text] [PDF]
|
|