Microbial communities in the water surface microlayer and associations with microbes in aerosols, beach sand, and bulk water.

Autor:	Abdool-Ghany AA; Department of Chemical, Environmental, and Materials Engineering, College of Engineering, University of Miami, Coral Gables, FL 33146, United States., Klaus JS; Department of Marine Geosciences, Rosenstiel School of Marine, Atmospheric, and Earth Science, University of Miami, Key Biscayne, FL 33149, United States., Sosa Villegas LE; Department of Chemical, Environmental, and Materials Engineering, College of Engineering, University of Miami, Coral Gables, FL 33146, United States., D'Alessio T; Department of Chemical, Environmental, and Materials Engineering, College of Engineering, University of Miami, Coral Gables, FL 33146, United States., Gidley ML; University of MIami, Cooperative Institute for Marine and Atmospheric Studies (CIMAS), Miami, FL 33149, United States.; National Oceanic and Atmospheric Administration (NOAA), Atlantic Oceanographic and Meteorological Laboratory (AMOL), Miami, FL 33149, United States., Sinigalliano CD; National Oceanic and Atmospheric Administration (NOAA), Atlantic Oceanographic and Meteorological Laboratory (AMOL), Miami, FL 33149, United States., Gaston C; Department of Atmospheric Science, Rosenstiel School of Marine, Atmospheric, and Earth Science, University of Miami, Key Biscayne, FL 33149, United States., Solo-Gabriele HM; Department of Chemical, Environmental, and Materials Engineering, College of Engineering, University of Miami, Coral Gables, FL 33146, United States.
Jazyk:	angličtina
Zdroj:	FEMS microbiology ecology [FEMS Microbiol Ecol] 2023 Apr 07; Vol. 99 (5).
DOI:	10.1093/femsec/fiad039
Abstrakt:	The water surface microlayer (SML) serves as a boundary through which microbes can be exchanged. To evaluate exchanges of microbes, this study compared microbial communities within different reservoirs, with an emphasis on the water SML and aerosols. Additionally, the microbial communities during a sewage spill and perigean tides were evaluated and the results were compared to times without these events. Results show that during perigean tides and during the sewage spill, levels of culturable bacteria were highest and showed an increase via sequencing in potential pathogenic bacteria (Corynebacterium and Vibrio, which increased from 3.5%-1800% depending on sample type). In the aerosol samples, Corynebacterium (average of 2.0%), Vibrio (1.6%), and Staphylococcus (10%), were the most abundant genera. Aerosolization factors, which were used to examine the transfer of the microbes, were high for these three genera. Measurements of general marine bacteria (GMB) by culture showed a weak but significant correlation between culturable GMB in aerosol samples versus in water and in the SML. More research is needed to evaluate the exchange of pathogens between the SML and air, given the increase in potentially pathogenic microbes within the SML during rare events and evidence that suggests that microbes maintain viability during transfers across reservoirs. (© The Author(s) 2023. Published by Oxford University Press on behalf of FEMS.)
Databáze:	MEDLINE
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