Table 2.
Mean N (fmol N cell−1) and C (fmol C cell−1) content in cultures of Crocosphaera watsonii provided with either an inorganic [phosphate (PO4)] or organic [mono phosphate adenosin (AMP), DL-α-glycerophosphate (Alpha)] source of phosphorus for growth.
| Culture | PO4 | AMP | Alpha |
|---|---|---|---|
| Mean N content (# data points) | |||
| Early light phase | 81.2 ± 18.2 (18) | 81.0 ± 34.6 (17) | 67.4 ± 27.0 (18) |
| Late light phase | 55.8 ± 24.2 (18) | 69.8 ± 30.9 (16) | 51.7 ± 24.2 (18) |
| Mean ΔN incorporated per night | 25.4 ± 33.1 (18) | 12.2 ± 42.3 (16) | 15.8 ± 34.2 (18) |
| Mean C content (# data points) | |||
| Early light phase | 463.6 ± 163.4 (18) | 497.8 ± 181.7 (17) | 440.7 ± 137.8 (18) |
| Late light phase | 499.1 ± 145.0 (16) | 646.1 ± 317.7 (17) | 529.0 ± 269.2 (18) |
| Mean ΔC incorporated per day | 56.4 ± 206.0 (16) | 148.3 ± 325.0 (17) | 88.31 ± 240.24 (18) |
N and C contents were measured in the early and late light phase. The value in between bracket is the number of samples used to estimate this average.