Linear relationships between shoot magnesium and calcium concentrations among angiosperm species are associated with cell wall chemistry

White, Philip J. and Broadley, Martin R. and El-Serehy, Hamed A. and George, Timothy S. and Neugebauer, Konrad (2018) Linear relationships between shoot magnesium and calcium concentrations among angiosperm species are associated with cell wall chemistry. Annals of Botany . ISSN 1095-8290

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Abstract

Background

Linear relationships are commonly observed between shoot magnesium ([Mg]shoot) and shoot calcium ([Ca]shoot) concentrations among angiosperm species growing in the same environment.

Scope and Conclusions

This article argues that, in plants that do not exhibit ‘luxury’ accumulation of Mg or Ca, (1) distinct stoichiometric relationships between [Mg]shoot and [Ca]shoot are exhibited by at least three groups of angiosperm species, namely commelinid monocots, eudicots excluding Caryophyllales, and Caryophyllales species; (2) these relationships are determined by cell wall chemistry and the Mg/Ca mass quotients in their cell walls; (3) differences between species in [Mg]shoot and [Ca]shoot within each group are associated with differences in the cation exchange capacity (CEC) of the cell walls of different species; and (4) Caryophyllales constitutively accumulate more Mg in their vacuoles than other angiosperm species when grown without a supra-sufficient Mg supply.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/930482
Keywords: Angiosperm, calcium (Ca), Caryophyllales, cation exchange capacity (CEC), cell wall, commelinid monocot, magnesium (Mg), Poales, shoot, stoichiometry, vacuole
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Biosciences > Division of Plant and Crop Sciences
Identification Number: https://doi.org/10.1093/aob/mcy062
Depositing User: Eprints, Support
Date Deposited: 13 Jun 2018 14:04
Last Modified: 04 May 2020 19:35
URI: http://eprints.nottingham.ac.uk/id/eprint/52385

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