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. 2023 Sep 6;107(21):6717–6730. doi: 10.1007/s00253-023-12752-5

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© The Author(s) 2023

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Fig. 1 — Methane in the gas headspace, produced by un- and pre-adapted communities, over time. Trend lines represent best fit of local regression (loess). Analysis of variance results comparing an effect of low vs. high NH₄-N medium for each community are shown