Bio-Aerosols Negatively Affect Prochlorococcus in Oligotrophic Aerosol-Rich Marine Regions

The marine cyanobacterium Prochlorococcus is a dominant photoautotroph in many oligotrophic Low-Nutrients-Low-Chlorophyll (LNLC) regions. While the chemical impact of aerosols upon interaction with surface seawater was documented in numerous studies, we show that Prochlorococcus cells are affected a...

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Veröffentlicht in:	Atmosphere 2020-05, Vol.11 (5), p.540
Hauptverfasser:	Rahav, Eyal, Paytan, Adina, Mescioglu, Esra, Bar-Zeev, Edo, Martínez Ruiz, Francisca, Xian, Peng, Herut, Barak
Format:	Artikel
Sprache:	eng
Schlagworte:	Aerosol deposition Aerosol effects Aerosols Airborne microorganisms Atmospheric particulates Bacteria Bioaerosols Bioassays Biological weapons Biomass Chemistry Chlorophyll Chlorophyll a Cyanobacteria Desertification Dust Dust particles Dust storms Experiments Extracellular Marine aerosols Marine systems Mediterranean Sea Membrane vesicles Metals Nutrients Prochlorococcus Regions Saharan Dust Seawater Trends Viral infections Viruses
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Zusammenfassung:	The marine cyanobacterium Prochlorococcus is a dominant photoautotroph in many oligotrophic Low-Nutrients-Low-Chlorophyll (LNLC) regions. While the chemical impact of aerosols upon interaction with surface seawater was documented in numerous studies, we show that Prochlorococcus cells are affected also by bio-aerosols (potentially biological agents in the dust/aerosols such as membrane-bound extracellular vesicles, small-size bacteria and/or viruses), resulting in lower surface seawater abundances in the oligotrophic Mediterranean Sea. We conducted experimental amendments of ‘live’ aerosol/dust particles and aerosol filtrates (
ISSN:	2073-4433 2073-4433
DOI:	10.3390/atmos11050540