Articles | Volume 14, issue 6
https://doi.org/10.5194/bg-14-1445-2017
https://doi.org/10.5194/bg-14-1445-2017
Research article
 | 
21 Mar 2017
Research article |  | 21 Mar 2017

Viable cold-tolerant iron-reducing microorganisms in geographically diverse subglacial environments

Sophie L. Nixon, Jon P. Telling, Jemma L. Wadham, and Charles S. Cockell

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Short summary
Despite their permanently cold and dark characteristics, subglacial environments (glacier ice–sediment interface) are known to harbour active microbial communities. However, the role of microbial iron cycling in these environments is poorly understood. Here we show that subglacial sediments harbour active iron-reducing microorganisms, and they appear to be cold-adapted. These results may have important implications for global biogeochemical iron cycling and export to marine ecosystems.
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