Root-shoot interactions explain the reduction of leaf mineral content in Arabidopsis plants grown under elevated [CO2 ] conditions

Physiologia Plantarum
Iván JaureguiIker Aranjuelo

Abstract

Although shoot N depletion in plants exposed to elevated [CO2 ] has already been reported on several occasions, some uncertainty remains about the mechanisms involved. This study illustrates (1) the importance of characterizing root-shoot interactions and (2) the physiological, biochemical and gene expression mechanisms adopted by nitrate-fed Arabidopsis thaliana plants grown under elevated [CO2 ]. Elevated [CO2 ] increases biomass and photosynthetic rates; nevertheless, the decline in total soluble protein, Rubisco and leaf N concentrations revealed a general decrease in leaf N availability. A transcriptomic approach (conducted at the root and shoot level) revealed that exposure to 800 ppm [CO2 ] induced the expression of genes involved in the transport of nitrate and mineral elements. Leaf N and mineral status revealed that N assimilation into proteins was constrained under elevated [CO2 ]. Moreover, this study also highlights how elevated [CO2 ] induced the reorganization of nitrate assimilation between tissues; root nitrogen assimilation was favored over leaf assimilation to offset the decline in nitrogen metabolism in the leaves of plants exposed to elevated [CO2 ].

References

Dec 26, 2001·Nucleic Acids Research·Ron EdgarAlex E Lash
Mar 26, 2002·Journal of Experimental Botany·Mathilde OrselFrançoise Daniel-Vedele
Jan 1, 2003·Journal of Experimental Botany·Christine H FoyerGraham Noctor
Jul 24, 2004·Proceedings of the National Academy of Sciences of the United States of America·Shimon RachmilevitchArnold J Bloom
Sep 21, 2004·Annual Review of Plant Biology·Stephen P LongDonald R Ort
Oct 6, 2004·Preparative Biochemistry & Biotechnology·Zhihua LiaoKexuan Tang
May 2, 2006·Statistical Applications in Genetics and Molecular Biology·Gordon K Smyth
Aug 31, 2006·Plant Molecular Biology·Pinghua LiRuth Grene
Feb 1, 2007·Plant, Cell & Environment·Elizabeth A Ainsworth, Alistair Rogers
Nov 20, 2008·Journal of Integrative Plant Biology·Daniel R Taub, Xianzhong Wang
Apr 30, 2009·Journal of Experimental Botany·Andrew D B LeakeyDonald R Ort
May 4, 2010·Nucleic Acids Research·Zhou DuZhen Su
Sep 4, 2010·PloS One·Gregory J Boggy, Peter J Woolf
Jun 3, 2011·Plant, Cell & Environment·Guillaume QuevalGraham Noctor
Aug 20, 2011·Plant & Cell Physiology·Bas J W DekkersLeónie Bentsink
Jun 5, 2012·Trends in Plant Science·Ya-Yun WangYi-Fang Tsay
Nov 16, 2013·Journal of Experimental Botany·Ignatious MatimatiMichael D Cramer
Feb 6, 2014·Plant & Cell Physiology·Ichiro TerashimaHitoshi Sakakibara
Feb 18, 2014·Journal of Experimental Botany·Anne KrappFrançoise Daniel-Vedele

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Citations

Dec 25, 2016·Journal of Experimental Botany·José S Rubio-Asensio, Arnold J Bloom
Dec 5, 2019·The Plant Journal : for Cell and Molecular Biology·Sharon B GraySiobhan M Brady
Aug 9, 2020·Frontiers in Plant Science·Birendra K PadhanViswanathan Chinnusamy

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