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. 2016 Oct 25;7:1691. doi: 10.3389/fmicb.2016.01691

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Copyright © 2016 Highton, Roosa, Crawshaw, Schallenberg and Morales.

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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Relative abundance (%) of nitrogen fixation and denitrifying genes to 16S rRNA gene abundances. Values are shown as relative abundance (functional gene copies/16S rRNA gene copies), in percentage for N fixation ((A) nifH gene) and denitrification ((B) nirS, (C) nosZI and (D) nosZII gene). Values per site represent four biological replicates, as well as 4 technical replicates, and error bars indicate one std error of the mean. P values represent significance as assessed by one way ANOVA.