Table 1. Relative abundance (%) of 16S rRNA bacterial sequences in 454 pyrosequencing libraries from the wet control (W1 and W28), desiccated (D14 and D23) and reflooded (R28) sediments.
|
W1 |
W28 |
D14 |
D23 |
R28 |
|
|---|---|---|---|---|---|
| Relative abundance (%) | |||||
| Acidobacteria; acidobacteriaceae | 1.6 | 1.9 | 1.3 | 1.4 | 0.6 |
| Actinobacteria | 2.3 | 1.2 | 3.5 | 2.6 | 1.0 |
| Bacteroidetes | 10.2 | 13.9 | 7.9 | 6.5 | 19.8 |
| Bacteroidales | 0.8 | 0.4 | 0.2 | 0.5 | 0.0 |
| Flavobacteriales | 6.5 | 7.5 | 3.7 | 2.9 | 11.0 |
| Sphingobacteriales | 1.8 | 5.3 | 3.5 | 2.6 | 8.7 |
| Unclassified bacteroidetes | 1.1 | 0.7 | 0.5 | 0.5 | 0.1 |
| Chloroflexi | 1.8 | 1.4 | 0.8 | 1.4 | 0.7 |
| Deferribacteres; Deferribacterales | 0.2 | 0.1 | 0.2 | 0.0 | 0.0 |
| Firmicutes | 0.6 | 0.3 | 0.2 | 0.7 | 0.5 |
| Bacillaceae; Halobacillus | 0.0 | 0.0 | 0.0 | 0.5 | 0.1 |
| Paenibacillaceae; Paenibacillus | 0.1 | 0.0 | 0.2 | 0.0 | 0.0 |
| Clostridiaceae | 0.5 | 0.3 | 0.0 | 0.2 | 0.4 |
| Fusobacteria; Leptotrichia | 0.0 | 0.0 | 0.2 | 0.0 | 0.0 |
| Gemmatimonadetes; Gemmatimonadaceae | 0.2 | 0.1 | 0.3 | 0.0 | 0.0 |
| Lentisphaerae; Lentisphaerae | 0.1 | 0.0 | 0.3 | 0.0 | 0.0 |
| Nitrospira; Nitrospiraceae | 0.4 | 0.7 | 0.6 | 0.3 | 0.3 |
| Alphaproteobacteria | 10.3 | 16.8 | 18.1 | 21.9 | 15.9 |
| Kordiimonas | 0.0 | 0.2 | 0.0 | 0.0 | 0.0 |
| Rhizobiales | 3.0 | 3.9 | 2.3 | 6.6 | 1.1 |
| Rhodobacteraceae | 5.4 | 7.1 | 11.9 | 10.9 | 11.1 |
| Rhodospirillales | 0.5 | 1.1 | 0.8 | 1.7 | 0.7 |
| Rickettsia | 0.0 | 0.1 | 0.2 | 0.0 | 0.0 |
| Sphingomonadaceae | 0.5 | 1.1 | 0.5 | 0.1 | 0.7 |
| Unclassified Alphaproteobacteria | 0.9 | 3.3 | 2.4 | 2.6 | 2.3 |
| Betaproteobacteria | 0.1 | 0.2 | 0.0 | 0.0 | 0.0 |
| Deltaproteobacteria | 22.2 | 16.7 | 13.5 | 15.1 | 8.0 |
| Bacteriovorax | 0.1 | 0.3 | 0.0 | 0.1 | 0.0 |
| Desulfobacterales | 12.6 | 7.3 | 6.4 | 6.5 | 2.7 |
| Desulfovibrionaceae | 0.6 | 2.9 | 0.5 | 0.1 | 0.0 |
| Desulfuromonales | 4.3 | 0.1 | 3.5 | 3.3 | 3.0 |
| Myxococcales | 2.2 | 4.5 | 1.8 | 2.8 | 0.6 |
| Syntrophobacterales | 0.8 | 0.5 | 0.0 | 0.3 | 0.0 |
| Unclassified deltaproteobacteria | 1.6 | 1.1 | 1.3 | 2.0 | 1.7 |
| Epsilonproteobacteria; Campylobacterales | 0.4 | 0.0 | 0.6 | 0.3 | 0.3 |
| Gammaproteobacteria | 30.7 | 31.1 | 35.2 | 34.5 | 39.4 |
| Alteromonadales (not including Marinobacter) | 1.2 | 1.0 | 1.1 | 0.9 | 2.0 |
| Marinobacter | 0.1 | 0.3 | 0.5 | 1.9 | 9.4 |
| Chromatiales | 10.2 | 9.7 | 12.4 | 10.1 | 12.3 |
| Enterobacteriaceae | 0.0 | 0.1 | 0.2 | 0.2 | 0.0 |
| Legionellales | 0.0 | 0.5 | 0.0 | 0.1 | 0.3 |
| Oceanospirillales | 0.5 | 1.0 | 0.8 | 0.7 | 3.3 |
| Pseudomonadaceae | 0.3 | 0.6 | 0.2 | 0.3 | 0.1 |
| Thiotrichales (not including Methylophaga) | 0.6 | 0.3 | 0.7 | 1.7 | 0.5 |
| Methylophaga | 0.0 | 0.5 | 1.6 | 3.3 | 0.7 |
| Unclassified gammaproteobacteria | 17.3 | 17.0 | 17.7 | 15.1 | 10.7 |
| Vibrio | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 |
| Xanthomonadaceae | 0.4 | 0.1 | 0.0 | 0.2 | 0.1 |
| Unclassified proteobacteria | 0.9 | 1.0 | 1.1 | 1.7 | 3.0 |
| Spirochaeta | 0.2 | 0.1 | 0.2 | 0.2 | 0.0 |
| TM7 | 0.0 | 0.2 | 0.0 | 0.0 | 0.0 |
| Unclassified bacteria | 4.8 | 3.4 | 4.7 | 3.6 | 2.4 |
| Verrucomicrobia; Verrucomicrobiales | 0.0 | 0.2 | 0.6 | 0.1 | 0.1 |
| WS3 | 0.2 | 0.4 | 0.0 | 0.3 | 0.0 |
| Cyanobacteria | 0.3 | 1.9 | 0.3 | 0.8 | 0.7 |
| Unclassified (below 90% similarity to any RDP sequence) | 12.5 | 8.8 | 10.5 | 8.1 | 7.0 |
A total of ∼4250 sequences (850 per library) were included in the analysis.