Assessing long-distance atmospheric transport of soilborne plant pathogens

نویسندگان

چکیده

Abstract Pathogenic fungi are a leading cause of crop disease and primarily spread through microscopic, durable spores adapted differentially for both persistence dispersal via soil, animals, water, and/or the atmosphere. Computational Earth system models air pollution have been used to simulate atmospheric spore transport aerial-dispersal-adapted (airborne) rust diseases, but importance soil-dispersal-adapted (soilborne) diseases remains unknown. While few existing simulation studies focused on intra continental dispersion, transoceanic inter soilborne entrained in agricultural dust aerosols is understudied may contribute spread. This study adapts Community Atmosphere Model, component System global plant pathogenic fungus Fusarium oxysporum ( F. oxy ). Our sensitivity assesses model’s accuracy long-distance aerosol impact deposition rate simulated Summer 2020 during major event from Northern Sub-Saharan Africa Caribbean southeastern United States (U.S.). We find that decreasing wet dry rates by an order magnitude improves representation long-distance, trans-Atlantic transport. Simulations also suggest small number can survive be deposited zones. dependent source parameterization, which we improved literature search yield map distribution soils. Using this modeling, show how potentially viable numbers atmosphere decrease with distance traveled offer novel danger index modeled work finds intercontinental cropland greatest between Eurasia, North Africa, suggesting future observational should concentrate these regions.

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ژورنال

عنوان ژورنال: Environmental Research Letters

سال: 2023

ISSN: ['1748-9326']

DOI: https://doi.org/10.1088/1748-9326/acf50c