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. 2014 Oct 10;9(2):485–496. doi: 10.1038/ismej.2014.144

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Copyright © 2015 International Society for Microbial Ecology

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¹⁵N enrichment (at%) of mat cores that were incubated with ¹⁵N₂ for 10 h in the dark measured by IRMS. Average values of three biological replicates per treatment are depicted with standard errors (for ‘0 to 2 mm depth', n=10). Asterisks indicate significant different paired treatments at P<0.05. Natural abundance of 0.37 at% ¹⁵N is indicated by a gray horizontal line.