TABLE 3.
Percent contributions to the fit for Se K-edge X-ray absorption near-edge spectra for bacterial strains isolated from a selenate-treated hypersaline evaporation pond (Fig. 5)a
| Strain | % Contribution of:
|
|||
|---|---|---|---|---|
| SeO42− | SeO32− | SeMet | Se0 | |
| MPD-51 | 55 (1) | 16 (2) | 22 (4) | 7 (2) |
| MPD-60 | 48 (1) | 10 (3) | 34 (7) | 8 (4) |
| MPD-61 | 24 (1) | 4 (2) | 67 (5) | 5 (3) |
| MPD-72 | 11 (1) | 9 (1) | 66 (3) | 14 (2) |
| MPD-70 | 52 (6) | 19 (9) | 29 (12) | NS |
| MPD-67 | 42 (4) | NS | 58 (6) | NS |
a
Values in parentheses are three times the estimated standard deviation and indicate the 95% confidence limit of the parameter in the fit. The higher values of the confidence limits for the last two strains are reflective of the poorer data quality due to the low Se concentration. NS, not significant.