Complex Microbial Communities Drive Iron and Sulfur Cycling in Arctic Fjord Sediments
Glacial runoff is a key source of iron for primary production in the Arctic. In the fjords of the Svalbard archipelago, glacial retreat is predicted to stimulate phytoplankton blooms that were previously restricted to outer margins. Decreased sediment delivery and enhanced primary production have be...
Published in: | Applied and Environmental Microbiology |
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Online Access: | http://dx.doi.org/10.1128/aem.00949-19 https://journals.asm.org/doi/pdf/10.1128/AEM.00949-19 |
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crasmicro:10.1128/aem.00949-19 2024-06-23T07:49:51+00:00 Complex Microbial Communities Drive Iron and Sulfur Cycling in Arctic Fjord Sediments Buongiorno, J. Herbert, L. C. Wehrmann, L. M. Michaud, A. B. Laufer, K. Røy, H. Jørgensen, B. B. Szynkiewicz, A. Faiia, A. Yeager, K. M. Schindler, K. Lloyd, K. G. Liu, Shuang-Jiang Simons Foundation Explorers Club 2019 http://dx.doi.org/10.1128/aem.00949-19 https://journals.asm.org/doi/pdf/10.1128/AEM.00949-19 en eng American Society for Microbiology https://journals.asm.org/non-commercial-tdm-license Applied and Environmental Microbiology volume 85, issue 14 ISSN 0099-2240 1098-5336 journal-article 2019 crasmicro https://doi.org/10.1128/aem.00949-19 2024-06-10T04:07:29Z Glacial runoff is a key source of iron for primary production in the Arctic. In the fjords of the Svalbard archipelago, glacial retreat is predicted to stimulate phytoplankton blooms that were previously restricted to outer margins. Decreased sediment delivery and enhanced primary production have been hypothesized to alter sediment biogeochemistry, wherein any free reduced iron that could potentially be delivered to the shelf will instead become buried with sulfide generated through microbial sulfate reduction. We support this hypothesis with sequencing data that showed increases in the relative abundance of sulfate reducing taxa and sulfate reduction rates with increasing distance from the glaciers in Van Keulenfjorden, Svalbard. Community structure was driven by organic geochemistry, suggesting that enhanced input of organic material will stimulate sulfate reduction in interior fjord sediments as glaciers continue to recede. Article in Journal/Newspaper Arctic Phytoplankton Svalbard Van Keulenfjorden ASM Journals (American Society for Microbiology) Arctic Svalbard Svalbard Archipelago Van Keulenfjorden ENVELOPE(15.489,15.489,77.559,77.559) Applied and Environmental Microbiology 85 14 |
institution |
Open Polar |
collection |
ASM Journals (American Society for Microbiology) |
op_collection_id |
crasmicro |
language |
English |
description |
Glacial runoff is a key source of iron for primary production in the Arctic. In the fjords of the Svalbard archipelago, glacial retreat is predicted to stimulate phytoplankton blooms that were previously restricted to outer margins. Decreased sediment delivery and enhanced primary production have been hypothesized to alter sediment biogeochemistry, wherein any free reduced iron that could potentially be delivered to the shelf will instead become buried with sulfide generated through microbial sulfate reduction. We support this hypothesis with sequencing data that showed increases in the relative abundance of sulfate reducing taxa and sulfate reduction rates with increasing distance from the glaciers in Van Keulenfjorden, Svalbard. Community structure was driven by organic geochemistry, suggesting that enhanced input of organic material will stimulate sulfate reduction in interior fjord sediments as glaciers continue to recede. |
author2 |
Liu, Shuang-Jiang Simons Foundation Explorers Club |
format |
Article in Journal/Newspaper |
author |
Buongiorno, J. Herbert, L. C. Wehrmann, L. M. Michaud, A. B. Laufer, K. Røy, H. Jørgensen, B. B. Szynkiewicz, A. Faiia, A. Yeager, K. M. Schindler, K. Lloyd, K. G. |
spellingShingle |
Buongiorno, J. Herbert, L. C. Wehrmann, L. M. Michaud, A. B. Laufer, K. Røy, H. Jørgensen, B. B. Szynkiewicz, A. Faiia, A. Yeager, K. M. Schindler, K. Lloyd, K. G. Complex Microbial Communities Drive Iron and Sulfur Cycling in Arctic Fjord Sediments |
author_facet |
Buongiorno, J. Herbert, L. C. Wehrmann, L. M. Michaud, A. B. Laufer, K. Røy, H. Jørgensen, B. B. Szynkiewicz, A. Faiia, A. Yeager, K. M. Schindler, K. Lloyd, K. G. |
author_sort |
Buongiorno, J. |
title |
Complex Microbial Communities Drive Iron and Sulfur Cycling in Arctic Fjord Sediments |
title_short |
Complex Microbial Communities Drive Iron and Sulfur Cycling in Arctic Fjord Sediments |
title_full |
Complex Microbial Communities Drive Iron and Sulfur Cycling in Arctic Fjord Sediments |
title_fullStr |
Complex Microbial Communities Drive Iron and Sulfur Cycling in Arctic Fjord Sediments |
title_full_unstemmed |
Complex Microbial Communities Drive Iron and Sulfur Cycling in Arctic Fjord Sediments |
title_sort |
complex microbial communities drive iron and sulfur cycling in arctic fjord sediments |
publisher |
American Society for Microbiology |
publishDate |
2019 |
url |
http://dx.doi.org/10.1128/aem.00949-19 https://journals.asm.org/doi/pdf/10.1128/AEM.00949-19 |
long_lat |
ENVELOPE(15.489,15.489,77.559,77.559) |
geographic |
Arctic Svalbard Svalbard Archipelago Van Keulenfjorden |
geographic_facet |
Arctic Svalbard Svalbard Archipelago Van Keulenfjorden |
genre |
Arctic Phytoplankton Svalbard Van Keulenfjorden |
genre_facet |
Arctic Phytoplankton Svalbard Van Keulenfjorden |
op_source |
Applied and Environmental Microbiology volume 85, issue 14 ISSN 0099-2240 1098-5336 |
op_rights |
https://journals.asm.org/non-commercial-tdm-license |
op_doi |
https://doi.org/10.1128/aem.00949-19 |
container_title |
Applied and Environmental Microbiology |
container_volume |
85 |
container_issue |
14 |
_version_ |
1802640527417409536 |