Ekele, JU, Webster, R, Perez De Heredia Benedicte, F, Lane, K, Fadel, A and Symonds, RC Current impacts of elevated CO2 on crop nutritional quality: a review using wheat as a case study. Stress Biology. (Accepted)

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Abstract

This review synthesises current research findings and modelling approaches to explore the impact of elevated atmospheric carbon dioxide (eCO2) concentrations on crop productivity, water and nutrient use efficiency, plant nutritional quality, and the implications for global food security. Over recent decades, rising atmospheric CO2 levels have sparked significant concern due to their role in driving climate change. While some studies highlight the potential benefits of eCO2, such as increased crop yields and improved wateruse efficiency, many recent investigations reveal a concerning decline in crop nutritional quality. eCO2 has been shown to reduce concentrations of key nutrients, including nitrogen, minerals, vitamins, polyphenols, and other non-nutrient compounds, as well as alter gene expression. These changes are further complicated by interactions with heat stress and drought, presenting significant challenges in predicting sustainable future crop productivity. These nutritional declines exacerbate the global crisis of malnutrition and hidden hunger, threatening the achievement of Sustainable Development Goal 2 (SDG2), which aims to end hunger and ensure food security. Addressing these challenges requires further research, interdisciplinary collaboration, and innovative approaches to mitigate the adverse effects of eCO2 on crop physiology and nutritional content while maximising agricultural sustainability. This review aims to provide insights into the complex mechanisms governing crop responses to eCO2 using wheat as a model and proposes pathways for future research and agricultural practices. These strategies are critical for tackling the intricate dynamics of climate variability, ensuring nutrient-rich food production, and securing food security in the face of a rapidly changing climate.

Item Type:	Article
Subjects:	G Geography. Anthropology. Recreation > GE Environmental Sciences T Technology > TX Home economics > TX341 Nutrition. Foods and food supply R Medicine > RC Internal medicine > RC1200 Sports Medicine S Agriculture > S Agriculture (General)
Divisions:	Biological and Environmental Sciences (from Sep 19) Sport and Exercise Sciences
Publisher:	Springer
SWORD Depositor:	A Symplectic
Date Deposited:	12 Feb 2025 15:58
Last Modified:	12 Feb 2025 15:58
URI:	https://researchonline.ljmu.ac.uk/id/eprint/25629

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