Fig. 2: Microbial responses to addition of carbon and nitrogen substrates. | Nature Communications

Fig. 2: Microbial responses to addition of carbon and nitrogen substrates.

From: Aerobic microbial life persists in oxic marine sediment as old as 101.5 million years

Fig. 2: Microbial responses to addition of carbon and nitrogen substrates.The alternative text for this image may have been generated using AI.

Plots for samples used for the incubations are aligned vertically. a Plots of cell abundance during incubation. Cell abundances for Incubation time 0 are abundances in the sediment samples before incubation was initiated. For the samples incubated with carbon substrates (bicarbonate, acetate, glucose, and pyruvate), ammonia was added as nitrogen source. The incubation labeled “Ammonia” received ammonia as the nitrogen source with no additional carbon. n = 76 samples (one for Incubation time 0 and three for Incubation sampling points [days 21, 68, and 557] per substrate for each sediment sample). b, c. Incorporation of carbon- (b) and nitrogen- (c) substrates by microbes identified by NanoSIMS cellular ROIs (Supplementary Data 1). Substrate incorporation for each ROI was plotted over kernel density violin plots.

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