Skip to main content
Dryad logo

Data from: Hidden shift of the ionome of plants exposed to elevated CO2 depletes minerals at the base of human nutrition

Citation

Loladze, Irakli (2014), Data from: Hidden shift of the ionome of plants exposed to elevated CO2 depletes minerals at the base of human nutrition, Dryad, Dataset, https://doi.org/10.5061/dryad.6356f

Abstract

Mineral malnutrition stemming from undiversified plant-based diets is a top global challenge. In C3 plants (e.g., rice, wheat), elevated concentrations of atmospheric carbon dioxide (eCO2) 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 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.

Usage Notes

Location

USA
Japan
Philippines
tropics-subtropics
India
Sweden
Belgium
temperate region
China
UK
Finland
Denmark
Australia
Germany