Mineral malnutrition stemming from undiversified plant-based diets is a top global challenge. In C-3 plants (e. g. rice, wheat), elevated concentrations of atmospheric carbon dioxide (eCO(2)) reduce protein and nitrogen concentrations, and can increase the total nonstructural carbohydrates (TNC; mainly starch, sugars). However, contradictory findings have obscured the effect of eCO2 on the ionome - the mineral and trace-element composition - of plants. Consequently, CO2-induced shifts in plant quality have been ignored in the estimation of the impact of global change on humans. This study shows that eCO2 reduces the overall mineral concentrations (-8\%, 95\% confidence interval: -9.1 to -6.9, p< 0.00001) and increases TNC: minerals > carbon: minerals in C3 plants. The meta-analysis of 7,761 observations, including 2,264 observations at state of the art FACE centers, covers 130 species/cultivars. The attained statistical power reveals that the shift is systemic and global. Its potential to exacerbate the prevalence of `hidden hunger' and obesity is discussed.
%0 Journal Article
%1 ISI:000336038800004
%A Loladze, Irakli
%D 2014
%J ELIFE
%K citeulikeExport maybenewrefsforco2
%R \%7B10.7554/eLife.02245\%7D
%T Hidden shift of the ionome of plants exposed to elevated CO2 depletes minerals at the base of human nutrition
%U http://dx.doi.org/\%7B10.7554/eLife.02245\%7D
%V 3
%X Mineral malnutrition stemming from undiversified plant-based diets is a top global challenge. In C-3 plants (e. g. rice, wheat), elevated concentrations of atmospheric carbon dioxide (eCO(2)) reduce protein and nitrogen concentrations, and can increase the total nonstructural carbohydrates (TNC; mainly starch, sugars). However, contradictory findings have obscured the effect of eCO2 on the ionome - the mineral and trace-element composition - of plants. Consequently, CO2-induced shifts in plant quality have been ignored in the estimation of the impact of global change on humans. This study shows that eCO2 reduces the overall mineral concentrations (-8\%, 95\% confidence interval: -9.1 to -6.9, p< 0.00001) and increases TNC: minerals > carbon: minerals in C3 plants. The meta-analysis of 7,761 observations, including 2,264 observations at state of the art FACE centers, covers 130 species/cultivars. The attained statistical power reveals that the shift is systemic and global. Its potential to exacerbate the prevalence of `hidden hunger' and obesity is discussed.
@article{ISI:000336038800004,
abstract = {{Mineral malnutrition stemming from undiversified plant-based diets is a top global challenge. In C-3 plants (e. g. rice, wheat), elevated concentrations of atmospheric carbon dioxide (eCO(2)) reduce protein and nitrogen concentrations, and can increase the total nonstructural carbohydrates (TNC; mainly starch, sugars). However, contradictory findings have obscured the effect of eCO2 on the ionome - the mineral and trace-element composition - of plants. Consequently, CO2-induced shifts in plant quality have been ignored in the estimation of the impact of global change on humans. This study shows that eCO2 reduces the overall mineral concentrations (-8\%, 95\% confidence interval: -9.1 to -6.9, p< 0.00001) and increases TNC: minerals > carbon: minerals in C3 plants. The meta-analysis of 7,761 observations, including 2,264 observations at state of the art FACE centers, covers 130 species/cultivars. The attained statistical power reveals that the shift is systemic and global. Its potential to exacerbate the prevalence of `hidden hunger' and obesity is discussed.}},
added-at = {2019-03-31T01:14:40.000+0100},
author = {Loladze, Irakli},
biburl = {https://www.bibsonomy.org/bibtex/2d5ffe05654ba16dbdbac306b4a4260a4/dianella},
citeulike-article-id = {13888219},
citeulike-linkout-0 = {http://dx.doi.org/\%7B10.7554/eLife.02245\%7D},
doi = {\%7B10.7554/eLife.02245\%7D},
interhash = {e09039c6e8394cfb35cd1a3e10b4e8fb},
intrahash = {d5ffe05654ba16dbdbac306b4a4260a4},
journal = {{ELIFE}},
keywords = {citeulikeExport maybenewrefsforco2},
month = may,
posted-at = {2015-12-21 08:15:52},
priority = {2},
timestamp = {2019-03-31T01:16:26.000+0100},
title = {{Hidden shift of the ionome of plants exposed to elevated CO2 depletes minerals at the base of human nutrition}},
url = {http://dx.doi.org/\%7B10.7554/eLife.02245\%7D},
volume = {{3}},
year = {{2014}}
}