Table 3.
Carbon-normalized yields of d-amino acids in DOC during incubation experiments in this study and percentages of bacterial contribution to DOC
| Expt and day | Carbon-normalized yield of d-amino acid (nmol mg C−1) in this expt |
% bacterial contribution |
|||||
|---|---|---|---|---|---|---|---|
| d-Asp | d-Glu | d-Ala | d-Asp | d-Glu | d-Ala | Avg | |
| Exp I | |||||||
| 0 | 10.2 | 4.0 | 10.8 | 40.6 | 24.7 | 36.2 | 33.8 |
| 1 | 9.6 | 4.2 | 27.2 | 38.2 | 25.6 | 91.3 | 51.7 |
| 2 | 10.2 | 4.2 | 28.0 | 40.6 | 25.9 | 94.0 | 53.5 |
| 3 | 10.3 | 4.1 | 25.5 | 40.7 | 25.4 | 85.8 | 50.7 |
| 6 | 10.8 | 4.2 | 18.7 | 43.0 | 25.4 | 62.9 | 43.8 |
| 10 | 11.0 | 4.1 | 14.8 | 43.7 | 24.9 | 49.9 | 39.5 |
| 14 | 10.2 | 4.6 | 14.7 | 40.4 | 28.1 | 49.6 | 39.4 |
| 24 | 10.2 | 4.9 | 13.6 | 40.4 | 30.2 | 45.7 | 38.8 |
| 60 | 11.1 | 5.3 | 15.1 | 43.9 | 32.3 | 50.6 | 42.3 |
| Exp II | |||||||
| 0 | 12.4 | 6.4 | 15.9 | 49.4 | 39.2 | 53.6 | 47.4 |
| 0.125 | 13.5 | 6.9 | 17.6 | 53.5 | 42.2 | 59.1 | 51.6 |
| 1 | 13.4 | 6.7 | 20.4 | 53.1 | 40.9 | 68.5 | 54.2 |
| 2 | 14.3 | 6.5 | 21.7 | 56.6 | 39.6 | 73.0 | 56.4 |
| 5 | 14.0 | 6.6 | 17.1 | 55.7 | 40.2 | 57.3 | 51.1 |
| 9 | 14.1 | 6.3 | 14.9 | 55.9 | 38.6 | 50.0 | 48.2 |
| 36 | 15.2 | 7.3 | 16.1 | 60.2 | 44.7 | 54.2 | 53.0 |