Table 3.
Summary statistics for the main model effects (iron, D. discoideum, Strain, and Competition) and relevant strain comparisons.
| Degrees of freedom | F-value | t-Value | p-Value | |
|---|---|---|---|---|
| Iron | 12 | 11.10 | – | 1.8E-15 |
| D. discoideum | 12 | 9.71 | – | 1.123E-13 |
| Strain | 16 | 9.80 | – | 3.026E-16 |
| Competition | 12 | 9.13 | – | 6.71E-13 |
| Pf2 vs. Pf2ΔgacA | 106 | – | -5.62 | 1.63E-05 |
| Pf3 vs. Pf2ΔgacA | 70 | – | -1.18 | 0.24 |
| Pf3 vs. Pf2 (iron, D. discoideum, separate) | 10 | – | 6.68 | 0.0002 |
| Pf3 vs. Pf2 (iron, D. discoideum, together) | 10 | – | 4.62 | 0.0007 |
| Pf3 vs. Pf2 (iron, no D. discoideum, separate) | 10 | – | -4.82 | 0.0004 |
| Pf3 vs. Pf2 (iron, no D. discoideum, together) | 10 | – | -2.21 | 0.049 |
| Pf3 vs. Pf2 (no iron, D. discoideum, separate) | 10 | – | -8.2 | 3E-06 |
| Pf3 vs. Pf2 (no iron, D. discoideum, together) | 10 | – | -4.88 | 0.0005 |
| Pf3 vs. Pf2 (no iron, no D. discoideum, separate) | 10 | – | -8.2 | 3.06E-06 |
| Pf3 vs. Pf2 (no iron, no D. discoideum, together) | 10 | – | 13.36 | 3.8E-05 |
Strain comparisons include Pf2 and Pf3 compared to Pf2ΔgacA across the whole data-set and specific strain comparisons for each condition. These strain comparisons combined the data from Pf3 and Pf2ΔgacA, as there was no significant difference between these strains, and were compared to Pf2. Comparisons were either unpaired or paired t-tests depending on whether the strains where grown separately (unpaired) or together (paired).