Genetic variation for adventitious rooting in response to low phosphorus availability: potential utility for phosphorus acquisition from stratified soils

Functional Plant Biology : FPB
Carter R MillerJonathan P Lynch

Abstract

We hypothesized that adventitious roots may improve crop adaptation to low-phosphorus soils by enhancing topsoil foraging. In a tropical field study, phosphorus stress stimulated adventitious rooting in two phosphorus-efficient genotypes of common bean (Phaseolus vulgaris L.) but not in two phosphorus-inefficient genotypes. Although phosphorus availability had no consistent effects on the length or biomass of whole root systems, it had differential effects on adventitious, basal, and taproots within root systems in a genotype-dependent manner, resulting in increased allocation to adventitious roots in efficient genotypes. Adventitious roots had greater length per unit biomass than other root types, especially under phosphorus stress. Adventitious roots had less construction cost than basal roots, despite having similar tissue nitrogen content. Phosphorus stress reduced lateral root density, and adventitious roots had less lateral root density than basal roots. Lateral roots formed further from the root tip in adventitious roots compared with basal roots, especially under phosphorus stress. Field results were confirmed in controlled environments in solid and liquid media. Stimulation of adventitious rooting by phosphorus stress ...Continue Reading

Citations

Aug 26, 2020·Plant, Cell & Environment·Christopher F StrockJonathan P Lynch
Oct 20, 2007·Molecular Ecology·Punidan D Jeyasingh, Lawrence J Weider
Apr 27, 2013·Annals of Botany·Raúl E JaramilloJonathan P Lynch
Nov 20, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·James D BurridgeJonathan P Lynch
Nov 1, 2012·Functional Plant Biology : FPB·Sylvia Morais de SousaJurandir Vieira Magalh Es
Jun 1, 2011·Functional Plant Biology : FPB·Ying L ChenZed Rengel
Sep 1, 2005·Functional Plant Biology : FPB·Jinming ZhuJonathan P Lynch
Sep 6, 2008·Plant, Cell & Environment·Hye-Ji KimKathleen M Brown
Mar 19, 2014·Ecology and Evolution·Punidan D JeyasinghMichael Tobler
Oct 18, 2014·Frontiers in Plant Science·Inge VerstraetenDanny Geelen
Oct 9, 2018·Journal of Experimental Botany·Xucun JiaJonathan P Lynch
Nov 1, 2004·Functional Plant Biology : FPB·Hong LiaoJonathan P Lynch
Feb 22, 2014·Annual Review of Plant Biology·Catherine BelliniIrene Perrone
Feb 15, 2015·Journal of Experimental Botany·Ai Zhan, Jonathan P Lynch
Jan 15, 2015·Journal of Experimental Botany·Jonathan P Lynch, Tobias Wojciechowski
Jul 16, 2020·Journal of Experimental Botany·Frederik J T van der BomMichael J Bell
Nov 1, 2009·Functional Plant Biology : FPB·Peter J GregoryIain M Young
Nov 1, 2004·Functional Plant Biology : FPB·Jinming Zhu, Jonathan P Lynch
Jul 10, 2018·Annals of Botany·Harini RangarajanJonathan P Lynch
Mar 27, 2018·Plant, Cell & Environment·Tania Galindo-CastañedaJonathan P Lynch
Sep 1, 2005·Functional Plant Biology : FPB·Melissa D HoJonathan P Lynch
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Mar 4, 2014·Annual Review of Plant Biology·Damar Lizbeth López-ArredondoLuis Herrera-Estrella
Dec 26, 2012·Annals of Botany·Yao Fang NiuYong Song Zhang
Jul 25, 2019·Plants·Mathieu GoninAntony Champion
Dec 25, 2015·Plant Physiology·Bianka Steffens, Amanda Rasmussen
Jun 29, 2021·Journal of Environmental Management·Mario FontanaSokrat Sinaj

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