Root architectural tradeoffs for water and phosphorus acquisition

Functional Plant Biology : FPB
Melissa D HoJonathan P Lynch

Abstract

Root architectural traits that increase topsoil foraging are advantageous for phosphorus acquisition but may incur tradeoffs for the acquisition of deep soil resources such as water. To examine this relationship, common bean genotypes contrasting for rooting depth were grown in the field and in the greenhouse with phosphorus stress, water stress and combined phosphorus and water stress. In the greenhouse, water and phosphorus availability were vertically stratified to approximate field conditions, with higher phosphorus in the upper layer and more moisture in the bottom layer. Under phosphorus stress, shallow-rooted genotypes grew best, whereas under drought stress, deep-rooted genotypes grew best. In the combined stress treatment, the best genotype in the greenhouse had a dimorphic root system that permitted vigorous rooting throughout the soil profile. In the field, shallow-rooted genotypes surpassed deep-rooted genotypes under combined stress. This may reflect the importance of early vegetative growth in terminal drought environments. Our results support the hypothesis that root architectural tradeoffs exist for multiple resource acquisition, particularly when resources are differentially localised in the soil profile. Archi...Continue Reading

References

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Citations

Nov 25, 2014·Molecular Genetics and Genomics : MGG·Maria PetraruloAnna Maria Mastrangelo
Aug 26, 2020·Plant, Cell & Environment·Christopher F StrockJonathan P Lynch
Jun 20, 2006·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Jinming ZhuJonathan P Lynch
Sep 25, 2008·Plant, Cell & Environment·Angela Hodge
Apr 25, 2012·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Jonathan P Lynch, Kathleen M Brown
Apr 27, 2013·Annals of Botany·Raúl E JaramilloJonathan P Lynch
Dec 7, 2013·Journal of Plant Research·Koichi Takahashi, Yoshiko Obata
Mar 6, 2015·Frontiers in Plant Science·Florian FortPablo Cruz
Jan 1, 2018·Plant and Soil·Ellen L FryRichard D Bardgett
Nov 19, 2019·Plant & Cell Physiology·Dawid PerlikowskiArkadiusz Kosmala
Jan 21, 2020·Journal of Experimental Botany·Sascha WaidmannJürgen Kleine-Vehn
Apr 28, 2020·Journal of Experimental Botany·Cristobal Concha, Peter Doerner
Oct 1, 2006·Functional Plant Biology : FPB·Timothy S S Conlin, R van den Driessche
Dec 1, 2006·Functional Plant Biology : FPB·Matthew D DentonMegan H Ryan
Feb 1, 2007·Functional Plant Biology : FPB·Paramita BasuKathleen M Brown
Apr 9, 2009·Oecologia·Cyrille ViolleMarie-Laure Navas
Jun 4, 2010·Plant, Cell & Environment·Jinming ZhuJonathan P Lynch
Nov 16, 2013·Journal of Experimental Botany·Ignatious MatimatiMichael D Cramer
Jun 13, 2015·Breeding Science·Yusaku UgaMasahiro Yano
Jul 28, 2015·Plant and Soil·Kemo JinWilliam R Whalley
Feb 23, 2018·Journal of Experimental Botany·Jonathan P Lynch
Jun 1, 2012·Functional Plant Biology : FPB·Abdelhalim ElazabJos Luis Araus
Sep 1, 2005·Functional Plant Biology : FPB·Jinming ZhuJonathan P Lynch
Sep 1, 2006·Functional Plant Biology : FPB·Ahmad M ManschadiGraeme L Hammer
Aug 14, 2020·FEMS Microbiology Ecology·Camila Cristina Vieira VellosoSylvia Morais de Sousa
Jul 9, 2009·Journal of Experimental Botany·Andrew P Whitmore, W Richard Whalley
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May 21, 2015·The New Phytologist·Guy WachsmanPhilip N Benfey
Jul 4, 2013·Annals of Botany·Philip J WhiteBlair M McKenzie

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BETA
environmental stress

Software Mentioned

WinRhizo
MiniTab

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