Modelling phloem and xylem transport within a complex architecture

Functional Plant Biology : FPB
André Lacointe, Peter E H Minchin

Abstract

The function of the plant's vasculature, incorporating both phloem and xylem, is of fundamental importance to the survival of all higher plants. Although the physiological mechanism involved in these two transport pathways has been known for some time, quantitative modelling of this has been slow to develop. 1-D continuous models have shown that the proposed mechanisms are quantitatively plausible (Thompson and Holbrook 2003) but more complex geometries (architectures) have remained out of reach because of mathematical difficulties. In this work, we extend the alternative modular approach by Daudet et al. (2002) using recently developed numerical tools which allow us to model complex architectures. After a full description of the extended model, we first show that it efficiently reproduces the results of the continuous approach when applied to the same simple configurations. The model is then applied to a more complex configuration with two sinks, confirming that sink priority is an emergent property of the Münch flow as earlier found with a minimalist model (Minchin et al. 1993). It is further shown how source leaf transpiration can change the relative carbon allocation rates among sinks.

References

Jul 18, 1970·Nature·J H Thornley
Aug 15, 2002·Journal of Experimental Botany·P Bancal, F Soltani
Mar 8, 2003·Journal of Theoretical Biology·Matthew V Thompson, N Michelle Holbrook

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Citations

Dec 10, 2009·Journal of Experimental Botany·J VosP H B de Visser
Feb 24, 2010·Journal of Experimental Botany·Veerle De Schepper, Kathy Steppe
Aug 29, 2012·The New Phytologist·Florent PantinBertrand Muller
Mar 22, 2013·Journal of the Royal Society, Interface·Kaare H JensenN Michele Holbrook
Jul 15, 2015·Tree Physiology·Sebastian PfautschMaurizio Mencuccini
Feb 1, 2011·Functional Plant Biology : FPB·Michael R ThorpePeter E H Minchin
Oct 18, 2011·Tree Physiology·Veerle De SchepperKathy Steppe
Mar 16, 2012·Journal of Experimental Botany·Johann M Rohwer
Oct 15, 2013·Journal of Experimental Botany·Alistair J HallMichel Génard
Sep 9, 2019·The New Phytologist·Roberto L SalomónKathy Steppe
May 1, 2017·Functional Plant Biology : FPB·Peter E H Minchin, André Lacointe
Jul 28, 2010·Tree Physiology·Teemu HölttäEero Nikinmaa
Apr 25, 2013·Plant, Cell & Environment·Hendrik PoorterLeo F M Marcelis
Apr 27, 2013·Plant, Cell & Environment·A J Hall, P E H Minchin
Sep 14, 2017·Tree Physiology·A Diaz-Espejo, V Hernandez-Santana
Aug 4, 2018·Ecology and Evolution·Yann SalmonBernhard Schmid
Jun 8, 2010·Plant, Cell & Environment·Michael Knoblauch, Winfried S Peters
Nov 29, 2012·Annals of Botany·Tom De SwaefKathy Steppe
Jun 14, 2017·Mathematical Biosciences and Engineering : MBE·Youcef Mammeri, Damien Sellier
Aug 1, 2014·Functional Plant Biology : FPB·Yann SalmonNina Buchmann
Apr 12, 2011·Annals of Botany·Veerle De Schepper, Kathy Steppe
Jul 27, 2017·Frontiers in Plant Science·Gen SakuraiJian Feng Ma
Feb 23, 2021·Frontiers in Plant Science·Gen Sakurai, Stanley J Miklavcic
Nov 9, 2010·Journal of Theoretical Biology·Jonas BühlerPeter Blümler
Apr 9, 2011·Plant Physiology·Florent PantinBertrand Muller

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