TABLE 1.
SIMPER analysis identifying the OTUs that contributed most to the differences in dsrA sequence composition between April and Augusta
| OTU | Closest match in NCBI database (% similarity) | Relative abundance (%) in:
|
% Contribution to temporal differences | |
|---|---|---|---|---|
| April | August | |||
| 21 | Desulfacinum infernum (85) | 0 | 1.75 | 3.77 |
| 35 | Desulfovibrio cuneatus (69) | 1.5 | 0 | 3.68 |
| 40 | Desulfacinum infernum (72) | 0 | 1 | 2.75 |
| 24 | Desulfacinum infernum (75) | 0.25 | 1.5 | 2.61 |
| 16 | Desulfobacterium anilini (83) | 0 | 1 | 2.61 |
| 26 | Desulfofustis glycolicus (87) | 0.75 | 2.75 | 2.53 |
| 8 | Desulfobacterium cetonicum (79) | 0.25 | 1 | 2.37 |
| 14 | Desulfobacterium anilini (92) | 0.75 | 3 | 2.37 |
| 18 | Desulfobacterium anilini (85) | 0.75 | 2 | 2.31 |
| 32 | Desulfotomaculum acetoxidans (65) | 1.5 | 0 | 2.15 |
| 39 | Desulfacinum infernum (71) | 0 | 1.25 | 2.12 |
| 58 | Desulfobacca acetoxidans (82) | 0.75 | 1.25 | 2.08 |
a
Data for the amended and unamended samples were combined within a month, for a total of 126 and 153 sequences (April and August, respectively) in the libraries.