TABLE 3.
Contributions to leucine assimilation (20 nM addition) by cyanobacteria and other microbial groupsa
| Group | Leucine assimilation, pmol liter−1 h−1 (SE)
|
% by groupc (SE) | No. of samples | ||
|---|---|---|---|---|---|
| Light | Dark | Light − darkb (SE) | |||
| Total community | 25.92 (3.67) | 22.50 (3.76) | 3.42 (0.85) | 100 (25) | 7 |
| Prochlorococcus | 4.63 (1.11) | 1.88 (0.27) | 2.75 (1.08) | 80 (30) | 4 |
| Synechococcus | 1.46 (0.96) | 1.05 (0.52) | 0.41 (0.62) | 12 (7) | 7 |
| Otherd | 21.82 (0.89) | 20.52 (0.48) | 1.30 (0.75) | 38 (8) | 7 |
a
Values are averages for all stations.
b
Difference in leucine incorporation between light and dark incubations.
c
Percentage of the difference between light and dark incubations accounted for by the indicated group.
d
Difference between total community and cyanobacteria (Prochlorococcus and Synechococcus). Values were calculated per sample, and then percentages were averaged for all stations.