TABLE 2.
MPN enumerations of syntrophic and methanogenic communities in impacted (F1), transition (F4), and nonimpacted (U3) regions from WCA-2A of Everglades marsh
| Sampling station in WCA-2A | Enumerationa (MPN · g−1)
|
|||
|---|---|---|---|---|
| Acetate-utilizing methanogens | H2-CO2 utilizing methanogens | Propionate-oxidizing syntrophic bacteria | Butyrate-oxidizing syntrophic bacteria | |
| F1 (eutrophic) | 0.094 × 105 (0.005, 0.3) | 10.99 × 106 (2.2, 30.75) | 4.63 × 106 (1.1, 14.98) | 4.63 × 105 (1.1, 14.98) |
| F4 (transition) | 0.94 × 105 (0.2, 2.7) | 4.63 × 106 (1.1, 14.98) | 4.63 × 106 (1.1, 14.98) | 4.63 × 105 (1.1, 14.98) |
| U3 (oligotrophic) | 0.1099 × 105 (0.007, 0.33) | 0.94 × 106 (0.2, 2.7) | 0.15 × 106 (0.019, 0.63) | 0.29 × 105 (0.07, 1) |
a
All values are expressed in units of MPN per gram (wet weight) of 0- to 10-cm soil and are the averages of three replicates. Lower and upper limits in parentheses reflect 95% confidence intervals.