Table 1. MAR-FISH results.
| DOC type | DOC conc. (μM) |
Alphaproteobacteria |
Gammaproteobacteria | Bacteroidetes | |
|---|---|---|---|---|---|
| Roseobacter | SAR11 | ||||
| MAR+g/DAPI counts (%) | |||||
| Isochrysis | 10 | 1.5 | 5.7 | 1.8 | 2.5 |
| 30 | 1.3 | 6.1 | 1.9 | 7.8 | |
| 100 | 1.4 | 5.9 | 2.5 | 7.5 | |
| Micromonas | 10 | 1.8 | 6.3 | 1.3 | 5.7 |
| 30 | 1.1 | 5.9 | 2.1 | 8.1 | |
| 100 | 1.3 | 4.3 | 2.1 | 5.8 | |
| Synechococcus | 10 | 1.3 | 6.9 | 1.6 | 5.5 |
| 30 | 1.4 | 5.0 | 1.9 | 6.7 | |
| 100 | 1.4 | 4.3 | 2.2 | 7.4 | |
| MAR+g/MAR+Eub (%) | |||||
| Isochrysis | 10 | 13.2 | 49.7 | 15.7 | 21.5 |
| 30 | 7.6 | 35.6 | 11.1 | 45.7 | |
| 100 | 8.1 | 34.2 | 14.3 | 43.4 | |
| Micromonas | 10 | 12.2 | 41.5 | 8.8 | 37.5 |
| 30 | 6.6 | 34.5 | 12.1 | 46.8 | |
| 100 | 9.7 | 31.7 | 15.6 | 43.1 | |
| Synechococcus | 10 | 8.8 | 44.8 | 10.4 | 36.0 |
| 30 | 9.4 | 33.5 | 12.9 | 44.2 | |
| 100 | 8.8 | 28.4 | 14.2 | 48.5 | |
Abbreviations: Conc., concentration; DAPI, 4,6-diamidino-2-phenylindole; DOC, dissolved organic carbon; MAR-FISH, microautoradiography combined with fluorescent in situ hybridization.
Table results presented (1) as the number of MAR-FISH positives as a proportion of the total bacterial community (MAR+g/DAPI counts) and (2) number of MAR-FISH positives as a proportion of the interacting community (MAR+g/MAR+Eub); Roseobacter and SAR11 are both subgroups of Alphaproteobacteria.