Natural variation in Arabidopsis thaliana reveals shoot ionome, biomass, and gene expression changes as biomarkers for zinc deficiency tolerance

Zinc (Zn) is an essential nutrient for plants, with a crucial role as a cofactor for many enzymes. Approximately one-third of the global arable land area is Zn deficient, leading to reduced crop yield and quality. To improve crop tolerance to Zn deficiency, it is important to understand the mechanis...

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Main Authors: Campos, Ana Carolina A.L., Kruijer, Willem, Alexander, Ross, Akkers, Robert C., Danku, John, Salt, David E., Aarts, Mark G.M.
Format: Article
Published: Oxford University Press 2017
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Online Access:https://eprints.nottingham.ac.uk/45833/
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author Campos, Ana Carolina A.L.
Kruijer, Willem
Alexander, Ross
Akkers, Robert C.
Danku, John
Salt, David E.
Aarts, Mark G.M.
author_facet Campos, Ana Carolina A.L.
Kruijer, Willem
Alexander, Ross
Akkers, Robert C.
Danku, John
Salt, David E.
Aarts, Mark G.M.
author_sort Campos, Ana Carolina A.L.
building Nottingham Research Data Repository
collection Online Access
description Zinc (Zn) is an essential nutrient for plants, with a crucial role as a cofactor for many enzymes. Approximately one-third of the global arable land area is Zn deficient, leading to reduced crop yield and quality. To improve crop tolerance to Zn deficiency, it is important to understand the mechanisms plants have adopted to tolerate suboptimal Zn supply. In this study, physiological and molecular aspects of traits related to Zn deficiency tolerance were examined in a panel of 19 Arabidopsis thaliana accessions. Accessions showed a larger variation for shoot biomass than for Zn concentration, indicating that they have different requirements for their minimal Zn concentration required for growth. Accessions with a higher tolerance to Zn deficiency showed an increased expression of the Zn deficiency-responsive genes ZIP4 and IRT3 in comparison with Zn deficiency-sensitive accessions. Changes in the shoot ionome, as a result of the Zn treatment of the plants, were used to build a multinomial logistic regression model able to distinguish plants regarding their Zn nutritional status. This set of biomarkers, reflecting the A. thaliana response to Zn deficiency and Zn deficiency tolerance, can be useful for future studies aiming to improve the performance and Zn status of crop plants grown under suboptimal Zn concentrations.
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spelling nottingham-458332020-05-04T18:51:18Z https://eprints.nottingham.ac.uk/45833/ Natural variation in Arabidopsis thaliana reveals shoot ionome, biomass, and gene expression changes as biomarkers for zinc deficiency tolerance Campos, Ana Carolina A.L. Kruijer, Willem Alexander, Ross Akkers, Robert C. Danku, John Salt, David E. Aarts, Mark G.M. Zinc (Zn) is an essential nutrient for plants, with a crucial role as a cofactor for many enzymes. Approximately one-third of the global arable land area is Zn deficient, leading to reduced crop yield and quality. To improve crop tolerance to Zn deficiency, it is important to understand the mechanisms plants have adopted to tolerate suboptimal Zn supply. In this study, physiological and molecular aspects of traits related to Zn deficiency tolerance were examined in a panel of 19 Arabidopsis thaliana accessions. Accessions showed a larger variation for shoot biomass than for Zn concentration, indicating that they have different requirements for their minimal Zn concentration required for growth. Accessions with a higher tolerance to Zn deficiency showed an increased expression of the Zn deficiency-responsive genes ZIP4 and IRT3 in comparison with Zn deficiency-sensitive accessions. Changes in the shoot ionome, as a result of the Zn treatment of the plants, were used to build a multinomial logistic regression model able to distinguish plants regarding their Zn nutritional status. This set of biomarkers, reflecting the A. thaliana response to Zn deficiency and Zn deficiency tolerance, can be useful for future studies aiming to improve the performance and Zn status of crop plants grown under suboptimal Zn concentrations. Oxford University Press 2017-06-22 Article PeerReviewed Campos, Ana Carolina A.L., Kruijer, Willem, Alexander, Ross, Akkers, Robert C., Danku, John, Salt, David E. and Aarts, Mark G.M. (2017) Natural variation in Arabidopsis thaliana reveals shoot ionome, biomass, and gene expression changes as biomarkers for zinc deficiency tolerance. Journal of Experimental Botany, 68 (13). pp. 3643-3656. ISSN 1460-2431 Biofortification biomarker mineral concentration plant ionome shoot growth zinc usage index https://academic.oup.com/jxb/article/68/13/3643/3884310/Natural-variation-in-Arabidopsis-thaliana-reveals doi:10.1093/jxb/erx191 doi:10.1093/jxb/erx191
spellingShingle Biofortification
biomarker
mineral concentration
plant ionome
shoot growth
zinc usage index
Campos, Ana Carolina A.L.
Kruijer, Willem
Alexander, Ross
Akkers, Robert C.
Danku, John
Salt, David E.
Aarts, Mark G.M.
Natural variation in Arabidopsis thaliana reveals shoot ionome, biomass, and gene expression changes as biomarkers for zinc deficiency tolerance
title Natural variation in Arabidopsis thaliana reveals shoot ionome, biomass, and gene expression changes as biomarkers for zinc deficiency tolerance
title_full Natural variation in Arabidopsis thaliana reveals shoot ionome, biomass, and gene expression changes as biomarkers for zinc deficiency tolerance
title_fullStr Natural variation in Arabidopsis thaliana reveals shoot ionome, biomass, and gene expression changes as biomarkers for zinc deficiency tolerance
title_full_unstemmed Natural variation in Arabidopsis thaliana reveals shoot ionome, biomass, and gene expression changes as biomarkers for zinc deficiency tolerance
title_short Natural variation in Arabidopsis thaliana reveals shoot ionome, biomass, and gene expression changes as biomarkers for zinc deficiency tolerance
title_sort natural variation in arabidopsis thaliana reveals shoot ionome, biomass, and gene expression changes as biomarkers for zinc deficiency tolerance
topic Biofortification
biomarker
mineral concentration
plant ionome
shoot growth
zinc usage index
url https://eprints.nottingham.ac.uk/45833/
https://eprints.nottingham.ac.uk/45833/
https://eprints.nottingham.ac.uk/45833/