Manganese and iron as structuring parameters of microbial communities in Arctic marine sediments from the Baffin Bay
The Arctic Baffin Bay between Canada and Greenland is sea-ice covered during the majority of the year, restricting primary production to the summer months. Sediments receive low amounts of mostly terrestrial- and less marine-derived organic matter. To study microbial communities constrained by physi...
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Online Access: | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=16359 https://doi.org/10.1093/femsec/fiv056 |
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ftufz:oai:ufz.de:16359 2023-12-10T09:45:11+01:00 Manganese and iron as structuring parameters of microbial communities in Arctic marine sediments from the Baffin Bay Algora, Camelia Vasileiadis, S. Wasmund, Kenneth Trevisan, M. Krüger, M. Puglisi, E. Adrian, Lorenz 2015-05-20 application/pdf https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=16359 https://doi.org/10.1093/femsec/fiv056 en eng Oxford University Press FEMS Microbiology Ecology 91 (6);; fiv056 https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=16359 https://dx.doi.org/10.1093/femsec/fiv056 info:eu-repo/semantics/openAccess ISSN: 0168-6496 marine subsurface microbial diversity Baffin Bay Burkholderiales Betaproteobacteria Dehalococcoidia Chloroflexi Illumina sequencing info:eu-repo/semantics/article https://purl.org/dc/dcmitype/Text 2015 ftufz https://doi.org/10.1093/femsec/fiv056 2023-11-12T23:33:23Z The Arctic Baffin Bay between Canada and Greenland is sea-ice covered during the majority of the year, restricting primary production to the summer months. Sediments receive low amounts of mostly terrestrial- and less marine-derived organic matter. To study microbial communities constrained by physicochemical conditions changing with distance from land and ocean depth, we applied high-throughput 16S rRNA gene sequencing and compared sequence diversity with biogeochemical parameters in 40 different sediment samples. Samples originated from seven cores down to 470 cm below seafloor along a shelf-to-basin transect. Bacterial diversity decreased faster with depth in basin than in shelf sediments, suggesting higher organic matter content sustained diversity into greater depths. All samples were dominated by Betaproteobacteria (mostly order Burkholderiales), which were especially abundant in basin sediments with low organic carbon and high Mn and Fe pore-water concentrations. Strong statistical correlations between concentrations of reduced Mn and/or Fe and the relative abundances of Betaproteobacteria suggest that this group is involved in metal reduction in Baffin Bay sediments. Dehalococcoidia (phylum Chloroflexi) were abundant in all samples, especially in shelf sediments with high organic content. This study indicates that Mn and/or Fe play important roles structuring microbial communities in Arctic sediments poor in organic matter. Article in Journal/Newspaper Arctic Baffin Bay Baffin Bay Baffin Greenland Sea ice UFZ - Publication Index (Helmholtz-Centre for Environmental Research) Arctic Baffin Bay Canada Greenland FEMS Microbiology Ecology 91 6 |
institution |
Open Polar |
collection |
UFZ - Publication Index (Helmholtz-Centre for Environmental Research) |
op_collection_id |
ftufz |
language |
English |
topic |
marine subsurface microbial diversity Baffin Bay Burkholderiales Betaproteobacteria Dehalococcoidia Chloroflexi Illumina sequencing |
spellingShingle |
marine subsurface microbial diversity Baffin Bay Burkholderiales Betaproteobacteria Dehalococcoidia Chloroflexi Illumina sequencing Algora, Camelia Vasileiadis, S. Wasmund, Kenneth Trevisan, M. Krüger, M. Puglisi, E. Adrian, Lorenz Manganese and iron as structuring parameters of microbial communities in Arctic marine sediments from the Baffin Bay |
topic_facet |
marine subsurface microbial diversity Baffin Bay Burkholderiales Betaproteobacteria Dehalococcoidia Chloroflexi Illumina sequencing |
description |
The Arctic Baffin Bay between Canada and Greenland is sea-ice covered during the majority of the year, restricting primary production to the summer months. Sediments receive low amounts of mostly terrestrial- and less marine-derived organic matter. To study microbial communities constrained by physicochemical conditions changing with distance from land and ocean depth, we applied high-throughput 16S rRNA gene sequencing and compared sequence diversity with biogeochemical parameters in 40 different sediment samples. Samples originated from seven cores down to 470 cm below seafloor along a shelf-to-basin transect. Bacterial diversity decreased faster with depth in basin than in shelf sediments, suggesting higher organic matter content sustained diversity into greater depths. All samples were dominated by Betaproteobacteria (mostly order Burkholderiales), which were especially abundant in basin sediments with low organic carbon and high Mn and Fe pore-water concentrations. Strong statistical correlations between concentrations of reduced Mn and/or Fe and the relative abundances of Betaproteobacteria suggest that this group is involved in metal reduction in Baffin Bay sediments. Dehalococcoidia (phylum Chloroflexi) were abundant in all samples, especially in shelf sediments with high organic content. This study indicates that Mn and/or Fe play important roles structuring microbial communities in Arctic sediments poor in organic matter. |
format |
Article in Journal/Newspaper |
author |
Algora, Camelia Vasileiadis, S. Wasmund, Kenneth Trevisan, M. Krüger, M. Puglisi, E. Adrian, Lorenz |
author_facet |
Algora, Camelia Vasileiadis, S. Wasmund, Kenneth Trevisan, M. Krüger, M. Puglisi, E. Adrian, Lorenz |
author_sort |
Algora, Camelia |
title |
Manganese and iron as structuring parameters of microbial communities in Arctic marine sediments from the Baffin Bay |
title_short |
Manganese and iron as structuring parameters of microbial communities in Arctic marine sediments from the Baffin Bay |
title_full |
Manganese and iron as structuring parameters of microbial communities in Arctic marine sediments from the Baffin Bay |
title_fullStr |
Manganese and iron as structuring parameters of microbial communities in Arctic marine sediments from the Baffin Bay |
title_full_unstemmed |
Manganese and iron as structuring parameters of microbial communities in Arctic marine sediments from the Baffin Bay |
title_sort |
manganese and iron as structuring parameters of microbial communities in arctic marine sediments from the baffin bay |
publisher |
Oxford University Press |
publishDate |
2015 |
url |
https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=16359 https://doi.org/10.1093/femsec/fiv056 |
geographic |
Arctic Baffin Bay Canada Greenland |
geographic_facet |
Arctic Baffin Bay Canada Greenland |
genre |
Arctic Baffin Bay Baffin Bay Baffin Greenland Sea ice |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Greenland Sea ice |
op_source |
ISSN: 0168-6496 |
op_relation |
https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=16359 https://dx.doi.org/10.1093/femsec/fiv056 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/femsec/fiv056 |
container_title |
FEMS Microbiology Ecology |
container_volume |
91 |
container_issue |
6 |
_version_ |
1784888429988806656 |