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Fig. 1 | Microbiome

Fig. 1

From: Transient O2 pulses direct Fe crystallinity and Fe(III)-reducer gene expression within a soil microbiome

Fig. 1

Fe(II) concentrations and Fe(III) solid phase crystallinity under different oxygenation treatments. a Amount of Fe(II) extracted from the aqueous and solid phases when [O2]atm (21% O2 in air) was supplied at 2.1 × 10−4 (SlowOx), 2.1 × 10−3 (MedOx), or 2.1 × 10−2 (FastOx) mol h−1. Data points are means (± s.d.) (n = 3). Light gray vertical bars denote 24-h periods under oxic conditions, see Additional file 1: Figure S1 for expanded view of oxic intervals. b Mössbauer results showing differences in Fe crystallinity between oxygenation treatments. T test significance: **P < 0.01, ***P < 0.001, ****P < 0.0001. Triplicate samples were pooled prior to Mössbauer analysis. The error bars represent standard deviations in the signal modeling (see Additional file 1: Section 2 for details)

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