Complex Microbial Communities Drive Iron and Sulfur Cycling in Arctic Fjord Sediments

• Published in: Applied and Environmental Microbiology
• Main Authors: 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.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2019
• Subjects: Arctic; fjord; iron reducers; microbial communities; sulfate reducers; Svalbard; Svalbard Archipelago; Van Keulenfjorden; glacier; Phytoplankton
• Online Access: https://pure.au.dk/portal/en/publications/f05506f0-7c58-477c-9bb2-b14d687274f7; https://doi.org/10.1128/AEM.00949-19; http://www.scopus.com/inward/record.url?scp=85069265926&partnerID=8YFLogxK; https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6606867/pdf/AEM.00949-19.pdf

Glacial retreat is changing biogeochemical cycling in the Arctic, where glacial runoff contributes iron for oceanic shelf primary production. We hypothesize that in Svalbard fjords, microbes catalyze intense iron and sulfur cycling in low-organic-matter sediments. This is because low organic matter...