TABLE 1.
Relative bacterial phylotype abundances from F1 (eutrophic), F4 (transition), and U3 (oligotrophic) soil microcosmsa
| Closest phylogenetic relative | Abundance (%) from:
|
|||||
|---|---|---|---|---|---|---|
| F1
|
F4
|
U3
|
||||
| Propionate | Butyrate | Propionate | Butyrate | Propionate | Butyrate | |
| Pelotomaculum sp. | 20 | 0 | 35 | 0 | 0 | 0 |
| Smithella sp. | 15 | 0 | 21 | 0 | 0 | 0 |
| Syntrophobacter sp. | 10 | 0 | 0 | 0 | 0 | 0 |
| SRP (δ-Proteobacteria) | 18 | 12 | 19 | 33 | 31 | 0 |
| Clostridium sp. | 0 | 10 | 8 | 26 | 0 | 0 |
| Pelobacter sp. | 0 | 0 | 0 | 0 | 19 | 0 |
| Syntrophospora sp. | 0 | 35 | 0 | 0 | 0 | 0 |
| Syntrophomonas sp. | 2 | 18 | 0 | 0 | 0 | 0 |
| Pelospora sp. | 0 | 0 | 0 | 10 | 0 | 60 |
| Blastocholoris sp. | 4 | 0 | 0 | 0 | 9 | 0 |
| Acidobacteria | 3 | 0 | 4 | 0 | 0 | 0 |
| Cytophaga sp. | 3 | 0 | 0 | 0 | 0 | 0 |
| Spirochaeta sp. | 6 | 0 | 4 | 8 | 0 | 0 |
| Chlorobi | 4 | 0 | 0 | 0 | 8 | 3 |
| Streptococcus sp. | 4 | 0 | 0 | 0 | 8 | 0 |
| Fusobacterium sp. | 2 | 0 | 0 | 0 | 0 | 0 |
| SBR1039 group | 4 | 0 | 0 | 0 | 0 | 0 |
| Magnetospirillum sp. | 2 | 0 | 4 | 0 | 0 | 0 |
| Eubacterium sp. | 3 | 4 | 2 | 6 | 5 | 5 |
| Planctomycetes | 0 | 0 | 3 | 0 | 0 | 5 |
| Anaerobaculum sp. | 0 | 0 | 0 | 6 | 6 | 5 |
| Haloanerobacter sp. | 0 | 5 | 0 | 0 | 0 | 0 |
| Aminobacterium sp. | 0 | 6 | 0 | 0 | 0 | 0 |
| Acidobacterium sp. | 0 | 0 | 0 | 0 | 0 | 4 |
| Bacteroidetes sp. | 0 | 4 | 0 | 5 | 0 | 5 |
| Holophaga sp. | 0 | 6 | 0 | 0 | 0 | 8 |
| Verrucomicrobia | 0 | 0 | 0 | 0 | 0 | 5 |
| Bacterium, Ellin6067 group | 0 | 0 | 0 | 6 | 8 | 0 |
| Uncultured pLW-42 group | 0 | 0 | 0 | 0 | 6 | 0 |
a
A total of 96 clones were compared from each library. F1, eutrophic; F4, transition; and U3, oligotrophic. Two or more representatives from each phylotype were sequenced, and 16S rRNA gene sequences were compared to their closest cultured phylogenetic relative from the National Center for Biotechnology Information database.