Size-Resolved Community Structure of Bacteria and Fungi Transported by Dust in the Middle East

The atmosphere plays an important role in transporting microorganisms on a global scale, yet the processes affecting the composition of the airborne microbiome, the aerobiome, are not fully outlined. Here we present the community compositions of bacteria and fungi obtained by DNA amplicon-sequencing...

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Autores principales:	Daniella Gat, Naama Reicher, Shai Schechter, Matan Alayof, Mark D. Tarn, Bethany V. Wyld, Ralf Zimmermann, Yinon Rudich
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	aerobiome bioaerosols airborne bacteria airborne fungi size-resolved bioaerosols mineral dust Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/b6def733702740e4aa1dde93537fd652
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spelling	oai:doaj.org-article:b6def733702740e4aa1dde93537fd6522021-11-10T08:17:27ZSize-Resolved Community Structure of Bacteria and Fungi Transported by Dust in the Middle East1664-302X10.3389/fmicb.2021.744117https://doaj.org/article/b6def733702740e4aa1dde93537fd6522021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmicb.2021.744117/fullhttps://doaj.org/toc/1664-302XThe atmosphere plays an important role in transporting microorganisms on a global scale, yet the processes affecting the composition of the airborne microbiome, the aerobiome, are not fully outlined. Here we present the community compositions of bacteria and fungi obtained by DNA amplicon-sequencing of aerosol samples collected in a size-resolved manner during nine consecutive days in central Israel. The campaign captured dust events originating from the Sahara and the Arabian deserts, as well as days without dust (“clear days”). We found that the source of the aerosol was the main variable contributing to the composition of both fungal and bacterial communities. Significant differences were also observed between communities representing particles of different sizes. We show evidence for the significant transport of bacteria as cell-aggregates and/or via bacterial attachment to particles during dust events. Our findings further point to the mixing of local and transported bacterial communities, observed mostly in particles smaller than 0.6 μm in diameter, representing bacterial single cells. Fungal communities showed the highest dependence on the source of the aerosols, along with significant daily variability, and without significant mixing between sources, possibly due to their larger aerodynamic size and shorter atmospheric residence times. These results, obtained under highly varied atmospheric conditions, provide significant assurances to previously raised hypotheses and could set the course for future studies on aerobiome composition.Daniella GatDaniella GatNaama ReicherShai SchechterMatan AlayofMark D. TarnBethany V. WyldRalf ZimmermannRalf ZimmermannYinon RudichFrontiers Media S.A.articleaerobiomebioaerosolsairborne bacteriaairborne fungisize-resolved bioaerosolsmineral dustMicrobiologyQR1-502ENFrontiers in Microbiology, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	aerobiome bioaerosols airborne bacteria airborne fungi size-resolved bioaerosols mineral dust Microbiology QR1-502
spellingShingle	aerobiome bioaerosols airborne bacteria airborne fungi size-resolved bioaerosols mineral dust Microbiology QR1-502 Daniella Gat Daniella Gat Naama Reicher Shai Schechter Matan Alayof Mark D. Tarn Bethany V. Wyld Ralf Zimmermann Ralf Zimmermann Yinon Rudich Size-Resolved Community Structure of Bacteria and Fungi Transported by Dust in the Middle East
description	The atmosphere plays an important role in transporting microorganisms on a global scale, yet the processes affecting the composition of the airborne microbiome, the aerobiome, are not fully outlined. Here we present the community compositions of bacteria and fungi obtained by DNA amplicon-sequencing of aerosol samples collected in a size-resolved manner during nine consecutive days in central Israel. The campaign captured dust events originating from the Sahara and the Arabian deserts, as well as days without dust (“clear days”). We found that the source of the aerosol was the main variable contributing to the composition of both fungal and bacterial communities. Significant differences were also observed between communities representing particles of different sizes. We show evidence for the significant transport of bacteria as cell-aggregates and/or via bacterial attachment to particles during dust events. Our findings further point to the mixing of local and transported bacterial communities, observed mostly in particles smaller than 0.6 μm in diameter, representing bacterial single cells. Fungal communities showed the highest dependence on the source of the aerosols, along with significant daily variability, and without significant mixing between sources, possibly due to their larger aerodynamic size and shorter atmospheric residence times. These results, obtained under highly varied atmospheric conditions, provide significant assurances to previously raised hypotheses and could set the course for future studies on aerobiome composition.
format	article
author	Daniella Gat Daniella Gat Naama Reicher Shai Schechter Matan Alayof Mark D. Tarn Bethany V. Wyld Ralf Zimmermann Ralf Zimmermann Yinon Rudich
author_facet	Daniella Gat Daniella Gat Naama Reicher Shai Schechter Matan Alayof Mark D. Tarn Bethany V. Wyld Ralf Zimmermann Ralf Zimmermann Yinon Rudich
author_sort	Daniella Gat
title	Size-Resolved Community Structure of Bacteria and Fungi Transported by Dust in the Middle East
title_short	Size-Resolved Community Structure of Bacteria and Fungi Transported by Dust in the Middle East
title_full	Size-Resolved Community Structure of Bacteria and Fungi Transported by Dust in the Middle East
title_fullStr	Size-Resolved Community Structure of Bacteria and Fungi Transported by Dust in the Middle East
title_full_unstemmed	Size-Resolved Community Structure of Bacteria and Fungi Transported by Dust in the Middle East
title_sort	size-resolved community structure of bacteria and fungi transported by dust in the middle east
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/b6def733702740e4aa1dde93537fd652
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_version_	1718440410841350144

Size-Resolved Community Structure of Bacteria and Fungi Transported by Dust in the Middle East

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