Biodiversity of mineral nutrient and trace element accumulation in Arabidopsis thaliana

Ivan Baxter, Christian Hermans, Brett Lahner, Elena Yakubova, Marina Tikhonova, Nathalie Verbruggen, Dai-yin Chao, David E Salt

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Abstract

In order to grow on soils that vary widely in chemical composition, plants have evolved mechanisms for regulating the elemental composition of their tissues to balance the mineral nutrient and trace element bioavailability in the soil with the requirements of the plant for growth and development. The biodiversity that exists within a species can be utilized to investigate how regulatory mechanisms of individual elements interact and to identify genes important for these processes. We analyzed the elemental composition (ionome) of a set of 96 wild accessions of the genetic model plant Arabidopsis thaliana grown in hydroponic culture and soil using inductively coupled plasma mass spectrometry (ICP-MS). The concentrations of 17-19 elements were analyzed in roots and leaves from plants grown hydroponically, and leaves and seeds from plants grown in artificial soil. Significant genetic effects were detected for almost every element analyzed. We observed very few correlations between the elemental composition of the leaves and either the roots or seeds. There were many pairs of elements that were significantly correlated with each other within a tissue, but almost none of these pairs were consistently correlated across tissues and growth conditions, a phenomenon observed in several previous studies. These results suggest that the ionome of a plant tissue is variable, yet tightly controlled by genes and gene×environment interactions. The dataset provides a valuable resource for mapping studies to identify genes regulating elemental accumulation. All of the ionomic data is available at www.ionomicshub.org.
Original languageEnglish
Article numbere35121
Number of pages12
JournalPloS ONE
Volume7
Issue number4
DOIs
Publication statusPublished - 27 Apr 2012

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Biodiversity
Trace Elements
Arabidopsis
Nutrients
Minerals
trace elements
Soil
Arabidopsis thaliana
Tissue
biodiversity
minerals
Soils
Food
Plant Leaves
Genes
nutrients
Chemical analysis
Seed
soil
Hydroponics

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Baxter, I., Hermans, C., Lahner, B., Yakubova, E., Tikhonova, M., Verbruggen, N., ... Salt, D. E. (2012). Biodiversity of mineral nutrient and trace element accumulation in Arabidopsis thaliana. PloS ONE, 7(4), [e35121]. https://doi.org/10.1371/journal.pone.0035121

Biodiversity of mineral nutrient and trace element accumulation in Arabidopsis thaliana. / Baxter, Ivan; Hermans, Christian; Lahner, Brett; Yakubova, Elena; Tikhonova, Marina; Verbruggen, Nathalie; Chao, Dai-yin; Salt, David E.

In: PloS ONE, Vol. 7, No. 4, e35121, 27.04.2012.

Research output: Contribution to journalArticle

Baxter, I, Hermans, C, Lahner, B, Yakubova, E, Tikhonova, M, Verbruggen, N, Chao, D & Salt, DE 2012, 'Biodiversity of mineral nutrient and trace element accumulation in Arabidopsis thaliana', PloS ONE, vol. 7, no. 4, e35121. https://doi.org/10.1371/journal.pone.0035121
Baxter I, Hermans C, Lahner B, Yakubova E, Tikhonova M, Verbruggen N et al. Biodiversity of mineral nutrient and trace element accumulation in Arabidopsis thaliana. PloS ONE. 2012 Apr 27;7(4). e35121. https://doi.org/10.1371/journal.pone.0035121
Baxter, Ivan ; Hermans, Christian ; Lahner, Brett ; Yakubova, Elena ; Tikhonova, Marina ; Verbruggen, Nathalie ; Chao, Dai-yin ; Salt, David E. / Biodiversity of mineral nutrient and trace element accumulation in Arabidopsis thaliana. In: PloS ONE. 2012 ; Vol. 7, No. 4.
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