Aeolian dispersal of bacteria in southwest Greenland: Their sources, abundance, diversity and physiological states
The Arctic is undergoing dramatic climatic changes that cause profound transformations in its terrestrial ecosystems and consequently in the microbial communities that inhabit them. The assembly of these communities is affected by aeolian deposition. However, the abundance, diversity, sources and ac...
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ftethz:oai:www.research-collection.ethz.ch:20.500.11850/266148 2023-10-29T02:33:59+01:00 Aeolian dispersal of bacteria in southwest Greenland: Their sources, abundance, diversity and physiological states Šantl-Temkiv, Tina Gosewinkel, Ulrich Starnawski, Piotr Lever, Mark id_orcid:0 000-0002-2046-8028 Finster, Kai 2018-04 application/application/pdf https://hdl.handle.net/20.500.11850/266148 https://doi.org/10.3929/ethz-b-000266148 en eng Oxford University Press info:eu-repo/semantics/altIdentifier/doi/10.1093/femsec/fiy031 info:eu-repo/semantics/altIdentifier/wos/000429481200011 http://hdl.handle.net/20.500.11850/266148 doi:10.3929/ethz-b-000266148 info:eu-repo/semantics/openAccess http://rightsstatements.org/page/InC-NC/1.0/ In Copyright - Non-Commercial Use Permitted FEMS Microbiology Ecology, 94 (4) arctic microbial communities aeolian dispersal community assembly 16S ribosomal RNA microbial activity atmospheric processes info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2018 ftethz https://doi.org/20.500.11850/26614810.3929/ethz-b-00026614810.1093/femsec/fiy031 2023-10-01T23:50:38Z The Arctic is undergoing dramatic climatic changes that cause profound transformations in its terrestrial ecosystems and consequently in the microbial communities that inhabit them. The assembly of these communities is affected by aeolian deposition. However, the abundance, diversity, sources and activity of airborne microorganisms in the Arctic are poorly understood. We studied bacteria in the atmosphere over southwest Greenland and found that the diversity of bacterial communities correlated positively with air temperature and negatively with relative humidity. The communities consisted of 1.3×10³ ± 1.0×10³ cells m⁻³, which were aerosolized from local terrestrial environments or transported from marine, glaciated and terrestrial surfaces over long distances. On average, airborne bacterial cells displayed a high activity potential, reflected in the high 16S rRNA copy number (590 ± 300 rRNA cell⁻¹), that correlated positively with water vapor pressure. We observed that bacterial clades differed in their activity potential. For instance, a high activity potential was seen for Rubrobacteridae and Clostridiales, while a low activity potential was observed for Proteobacteria. Of those bacterial families that harbor ice-nucleation active species, which are known to facilitate freezing and may thus be involved in cloud and rain formation, cells with a high activity potential were rare in air, but were enriched in rain. ISSN:0168-6496 ISSN:1574-6941 Article in Journal/Newspaper Arctic Greenland ETH Zürich Research Collection Journal of Arrhythmia 39 5 784 789 |
institution |
Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
topic |
arctic microbial communities aeolian dispersal community assembly 16S ribosomal RNA microbial activity atmospheric processes |
spellingShingle |
arctic microbial communities aeolian dispersal community assembly 16S ribosomal RNA microbial activity atmospheric processes Šantl-Temkiv, Tina Gosewinkel, Ulrich Starnawski, Piotr Lever, Mark id_orcid:0 000-0002-2046-8028 Finster, Kai Aeolian dispersal of bacteria in southwest Greenland: Their sources, abundance, diversity and physiological states |
topic_facet |
arctic microbial communities aeolian dispersal community assembly 16S ribosomal RNA microbial activity atmospheric processes |
description |
The Arctic is undergoing dramatic climatic changes that cause profound transformations in its terrestrial ecosystems and consequently in the microbial communities that inhabit them. The assembly of these communities is affected by aeolian deposition. However, the abundance, diversity, sources and activity of airborne microorganisms in the Arctic are poorly understood. We studied bacteria in the atmosphere over southwest Greenland and found that the diversity of bacterial communities correlated positively with air temperature and negatively with relative humidity. The communities consisted of 1.3×10³ ± 1.0×10³ cells m⁻³, which were aerosolized from local terrestrial environments or transported from marine, glaciated and terrestrial surfaces over long distances. On average, airborne bacterial cells displayed a high activity potential, reflected in the high 16S rRNA copy number (590 ± 300 rRNA cell⁻¹), that correlated positively with water vapor pressure. We observed that bacterial clades differed in their activity potential. For instance, a high activity potential was seen for Rubrobacteridae and Clostridiales, while a low activity potential was observed for Proteobacteria. Of those bacterial families that harbor ice-nucleation active species, which are known to facilitate freezing and may thus be involved in cloud and rain formation, cells with a high activity potential were rare in air, but were enriched in rain. ISSN:0168-6496 ISSN:1574-6941 |
format |
Article in Journal/Newspaper |
author |
Šantl-Temkiv, Tina Gosewinkel, Ulrich Starnawski, Piotr Lever, Mark id_orcid:0 000-0002-2046-8028 Finster, Kai |
author_facet |
Šantl-Temkiv, Tina Gosewinkel, Ulrich Starnawski, Piotr Lever, Mark id_orcid:0 000-0002-2046-8028 Finster, Kai |
author_sort |
Šantl-Temkiv, Tina |
title |
Aeolian dispersal of bacteria in southwest Greenland: Their sources, abundance, diversity and physiological states |
title_short |
Aeolian dispersal of bacteria in southwest Greenland: Their sources, abundance, diversity and physiological states |
title_full |
Aeolian dispersal of bacteria in southwest Greenland: Their sources, abundance, diversity and physiological states |
title_fullStr |
Aeolian dispersal of bacteria in southwest Greenland: Their sources, abundance, diversity and physiological states |
title_full_unstemmed |
Aeolian dispersal of bacteria in southwest Greenland: Their sources, abundance, diversity and physiological states |
title_sort |
aeolian dispersal of bacteria in southwest greenland: their sources, abundance, diversity and physiological states |
publisher |
Oxford University Press |
publishDate |
2018 |
url |
https://hdl.handle.net/20.500.11850/266148 https://doi.org/10.3929/ethz-b-000266148 |
genre |
Arctic Greenland |
genre_facet |
Arctic Greenland |
op_source |
FEMS Microbiology Ecology, 94 (4) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1093/femsec/fiy031 info:eu-repo/semantics/altIdentifier/wos/000429481200011 http://hdl.handle.net/20.500.11850/266148 doi:10.3929/ethz-b-000266148 |
op_rights |
info:eu-repo/semantics/openAccess http://rightsstatements.org/page/InC-NC/1.0/ In Copyright - Non-Commercial Use Permitted |
op_doi |
https://doi.org/20.500.11850/26614810.3929/ethz-b-00026614810.1093/femsec/fiy031 |
container_title |
Journal of Arrhythmia |
container_volume |
39 |
container_issue |
5 |
container_start_page |
784 |
op_container_end_page |
789 |
_version_ |
1781056336352509952 |