Research Article

Nitric Oxide Production by the Human Intestinal Microbiota by Dissimilatory Nitrate Reduction to Ammonium

Figure 2

NO-N and N2O-N concentrations produced after 24 hours of anaerobic incubation of the human fecal microbiota in mineral medium (a), (b), nonbuffered feed medium (c), (d), or buffered feed medium (e), (f) with or without the addition of nitrate ( ). Significant differences are indicated with a, b, or c ( ). Results are deviation of 3 incubations of fecal suspension from 1 representative person.
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(a)
284718.fig.002b
(b)
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(c)
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(d)
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(e)
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(f)