Abstract
Plant disease outbreaks pose significant risks to global food security and environmental sustainability worldwide, and result in the loss of primary productivity and biodiversity that negatively impact the environmental and socio-economic conditions of affected regions. Climate change further increases outbreak risks by altering pathogen evolution and host–pathogen interactions and facilitating the emergence of new pathogenic strains. Pathogen range can shift, increasing the spread of plant diseases in new areas. In this Review, we examine how plant disease pressures are likely to change under future climate scenarios and how these changes will relate to plant productivity in natural and agricultural ecosystems. We explore current and future impacts of climate change on pathogen biogeography, disease incidence and severity, and their effects on natural ecosystems, agriculture and food production. We propose that amendment of the current conceptual framework and incorporation of eco-evolutionary theories into research could improve our mechanistic understanding and prediction of pathogen spread in future climates, to mitigate the future risk of disease outbreaks. We highlight the need for a science–policy interface that works closely with relevant intergovernmental organizations to provide effective monitoring and management of plant disease under future climate scenarios, to ensure long-term food and nutrient security and sustainability of natural ecosystems.
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Acknowledgements
B.K.S. acknowledges funding from the Australian Research Council (DP210102081; DP230101448) for microbiome research. E.E. is supported by an Australian Research Council fellowship (DE210101822). E.G. acknowledges funding from Generalitat Valenciana and a European Social Fund grant (APOSTD/2021/188). M.D.-B. is supported by the Spanish Ministry of Science and Innovation (PID202-115813RA-100). P.T. and J.E.L.’s research is supported by the US National Science Foundation (no. 2120117). J.E.L. receives additional funding from the Foundation of Food and Agriculture (ICRC20-0000000084).
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Singh, B.K., Delgado-Baquerizo, M., Egidi, E. et al. Climate change impacts on plant pathogens, food security and paths forward. Nat Rev Microbiol 21, 640–656 (2023). https://doi.org/10.1038/s41579-023-00900-7
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DOI: https://doi.org/10.1038/s41579-023-00900-7
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