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. 2018 Sep 11;9:2121. doi: 10.3389/fmicb.2018.02121

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Copyright © 2018 Semedo, Song, Sparrer and Phillips.

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) and the copyright owner(s) 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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N₂O and N₂ production rates of control (blue) and tetracycline (red) samples. Significant difference between control and tetracycline treatment is marked with ^∗ (paired Mann–Whitney-Wilcoxon test, p < 0.05). Each sample is represented by one point. The boxes represent the first and third quartiles, with median value bisecting each box. The whiskers extend to the largest/smallest value, excluding outliers (data beyond 1.5×inter-quartile range).