Elevated CO2 reprograms carbon allocation and attenuates ABA sensitivity to balance photosynthesis and structural resilience in foxtail millet (Setaria italica).
Wang J, Xu J, Yao Y, Wang L, Zong Y
Climate Adaptation
Vegetables and grains you eat are growing in an increasingly CO2-rich atmosphere, which may be quietly reducing their nutritional value even as yields appear to increase.
As the air fills with more carbon dioxide from burning fossil fuels, plants are responding in surprising ways — they grow faster and bigger, but the food they produce can have less protein, iron, and zinc than before. It's a bit like eating a larger but less nutritious meal. This shift is already happening in farms and gardens around the world and could affect the health of both people and wildlife that depend on these plants.
Key Findings
Elevated CO2 concentrations cause plants to grow larger and produce more biomass, but with measurably reduced concentrations of key nutrients such as protein, iron, and zinc
Increased CO2 alters plant stomatal behavior, reducing water loss and changing how plants interact with soil microbes and pollinators
Crop staples grown under elevated CO2 conditions show nutrient dilution effects that could affect the dietary health of populations relying on these foods
chevron_right Technical Summary
Rising atmospheric CO2 levels are changing how plants grow, affecting their size, nutritional content, and interactions with the surrounding environment in ways that have broad implications for ecosystems and food systems.
Abstract Preview
Rising atmospheric CO
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