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. 2021 Jun 15;23(10):6056–6073. doi: 10.1111/1462-2920.15563

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© 2021 The Authors. Environmental Microbiology published by Society for Applied Microbiology and John Wiley & Sons Ltd.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Fig 2 — Effect of wood sawdust amendment on biomass and plant‐C incorporation by fungi, bacteria and mycorrhizal fungi. Concentration of total C and ¹³C excess in PLFA/NLFA markers are shown for fungi (A, B), bacteria (C, D) and arbuscular mycorrhizal fungi (E, F) in unplanted soil (So) and carrot rhizosphere soil (Rhi). T1 and T2 represent 2‐ and 6‐weeks pre‐sowing incubation times of sawdust amendments. The value for bacterial PLFAs is obtained as a sum of PLFAs i15.0, ai15.0, i16.0, 16.1w7c, 16.1w6c, ai17.1w7, i17.0, 17.1w8c, cy‐17.0. ¹³C excess expresses the net amount of labelled C incorporated in a PLFA/NLFA as a result of pulse‐labelling and is obtained by subtracting the natural ¹³C abundance found for the same PLFA/NLFA in unlabeled rhizosphere samples.