Up in the air: The emerging science of dust and sandstorm microbes
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UNCCD Library
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article
In an expanding field of environmental microbiology, researchers have begun investigating the microscopic travelers that hitch rides on these dust plumes and transit the globe. Because of their origins in harsh desert climates, these bacteria,
archaea, microbial eukaryotes (including fungi), and viruses may be especially good at surviving extreme conditions and adapting to new environments.
Dust and sandstorm-derived microorganisms also have the potential to significantly affect the ecosystems to which these
microbes are transported. Deposits of such microbes could impact the ecosystem services provided by microbial communities, affecting nutrient cycling and food chains. Notably, Saharan-derived dust samples in the Caribbean were found to contain Aspergillus sydowii, a fungus that infects corals and may be partially responsible for the declining health of the Caribbean coral reef (Garrison et al. 2003).
In addition, pathogens carried by sandstorms may infect agricultural crops, with major implications for the global economy.
archaea, microbial eukaryotes (including fungi), and viruses may be especially good at surviving extreme conditions and adapting to new environments.
Dust and sandstorm-derived microorganisms also have the potential to significantly affect the ecosystems to which these
microbes are transported. Deposits of such microbes could impact the ecosystem services provided by microbial communities, affecting nutrient cycling and food chains. Notably, Saharan-derived dust samples in the Caribbean were found to contain Aspergillus sydowii, a fungus that infects corals and may be partially responsible for the declining health of the Caribbean coral reef (Garrison et al. 2003).
In addition, pathogens carried by sandstorms may infect agricultural crops, with major implications for the global economy.
Keywords
sand and dust storms
environmental impacts
economic impact
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