TABLE 2.
Uneven responses of different taxonomic groups (family level) of bacteria and fungi to H2 exposure as a function of land use typea
| Taxonomic group | % more abundant in: |
|||||
|---|---|---|---|---|---|---|
| Poplar |
Farmland |
Larch |
||||
| eH2 | aH2 | eH2 | aH2 | eH2 | aH2 | |
| Bacteria | ||||||
| Nocardioidaceae (10, 9, 8)b | 0 | 100 | 70 | 0 | 56 | 0 |
| Xanthomonadaceae (32, 29, 33) | 0 | 61 | 69 | 0 | 69 | 0 |
| Intrasporangiaceae (7, 6, 7) | 0 | 43 | 57 | 0 | 100 | 0 |
| Sphingomonadaceae (13, 11, 12) | 0 | 75 | 54 | 0 | 27 | 18 |
| Hyphomonadaceae (6, 6, 7) | 0 | 0 | 50 | 0 | 33 | 0 |
| Sphingobacteriaceae (8, 8, 8) | 0 | 63 | 13 | 13 | 25 | 0 |
| Gemmatimonadaceae (30, 26, 28) | 11 | 50 | 7 | 13 | 19 | 0 |
| S47 (6, 6, 6) | 0 | 50 | 0 | 0 | 0 | 17 |
| Frankiaceae (6, 6, 6) | 0 | 17 | 0 | 0 | 50 | 0 |
| 0319-7L14OR (18, 14, 18) | 72 | 0 | 0 | 11 | 0 | 0 |
| RB25CL (9, 7, 9) | 67 | 0 | 33 | 0 | 14 | 0 |
| Flexibacteriaceae (19, 22, 20) | 60 | 15 | 16 | 0 | 5 | 18 |
| OM190OR (6, 7, 7) | 57 | 0 | 0 | 17 | 0 | 14 |
| Bdellovibrionaceae (13, 9, 8) | 0 | 0 | 0 | 54 | 0 | 0 |
| Rhodobacteraceae (10, 8, 9) | 0 | 11 | 0 | 10 | 13 | 50 |
| Fungi | ||||||
| Cortinariaceae (6, 14, 0) | NAc | NA | 0 | 17 | 21 | 64 |
| Helotiaceae (8, 22, 0) | NA | NA | 25 | 0 | 0 | 50 |
a
The percentages shown are the proportions of OTUs that were more abundant in the aH2 or eH2 treatment for each land use type. This reduced data set consists of microbial families containing at least six OTUs and of which >50% of the OTUs responded to the treatment in at least one land use type.
b
The values in parentheses are the numbers of OTUs found in the respective land use types.
c
NA, not available.