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. 2016 Mar 15;7:323. doi: 10.3389/fmicb.2016.00323

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Copyright © 2016 Bouskill, Wood, Baran, Hao, Ye, Bowen, Lim, Nico, Holman, Gilbert, Silver, Northen and Brodie.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Changes to carbon composition in treatment vs. control soils. (A) principal components analysis (PCA)-linear discriminant analysis (LDA) of the complete Fourier Transform Infrared (FTIR) spectra differentiating control and treatment soils. (B) The first three PCA-LDA loadings of the complete data set in the lower spectral region (≤1200 cm^-1) showing the regions that discriminated across the two axis given in (C). (C) Infrared spectra depicting the control and treatment soils, the spectral features have been annotated to indicate the different soil compounds relevant to the current study. An extension of this figure with complete annotations is given in the Supplementary Figure S1.