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. 2017 Apr 21;11(8):1825–1835. doi: 10.1038/ismej.2017.48

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Copyright © 2017 The Author(s)

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/

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Key C degradation genes in warmed and control soils in the SIP microcosm experiment. (a), ¹²C-DNA, total communities, light fractions isolated during SIP. (b), ¹³C-DNA, active communities, heavy fractions isolated during SIP. Warmed soils, filled bars. Control soils, blank bars. Signal intensities were the average abundances of detected genes. Organic compounds shown in the horizontal bars are typical in soil and/or plant residues. Pe, an abbreviation of ‘pectin’. The arrow denotes the increasing chemical recalcitrance of organic compounds. *P⩽0.05) and **P⩽0.01) are statistically significant effects of warming.