Table S4.pdf

Table S4. N2O production by Methylocystis sp. strain SC2 in response to increasing NH4+ concentrations. Note: SC2 cells were incubated in 120-ml serum bottles under a headspace CH4:air mixing ratio of   20:80 (v/v) at 25 ℃, with shaking at 130 rpm. Using an N2O microsensor with piercing-needle (Unisens A/S, Denmark), the production of N2O in the headspace was regularly monitored during the whole incubation time period (14 days).   Significant difference between comparison groups was calculated using one-way   ANOVA Bonferroni t-test: *p-value≤0.05, **p-value≤0.01, ***p-value≤0.001 [comparing the same incubation time point across   the increasing NH4+ concentrations (10 mM,   30 mM, 50 mM, 75 mM NH4+) relative to the   control treatment (1 mM NH4+)]; and ǂp-value≤0.05, ǂǂp-value≤0.01, ǂǂǂp-value≤0.001 [comparing the same NH4+ treatment over incubation time relative to the early_log   phase]. See Fig. 5 for the graphical presentation of N2O production over the   whole incubation period.