Table 2.
Concentrations of standards used in the chemotaxis experiments. Included are specifications of mixtures utilized to simulate the presence of stressed host diatoms (Mix I: salinity of 10; Mix II: salinity of 40; Mix III: temperature of 20 °C and Mix IV: 24 light + UVR, according to data given in [33,34,35]).
| Compounds (g·L−1) | Concentrations | ||||
|---|---|---|---|---|---|
| Individual | Mix I | Mix II | Mix III | Mix IV | |
| Carbohydrates | |||||
| arabinose | 1.1 × 10−2 | 1.3 × 10−2 | 0.9 × 10−2 | 0.8 × 10−2 | 1.5 × 10−2 |
| galactose | 1.4 × 10−2 | 1.2 × 10−2 | 1.5 × 10−2 | 2.0 × 10−2 | 4.5 × 10−2 |
| α-glucose | 5.5 × 10−1 | 4.3 × 10−1 | 4.6 × 10−1 | 3.9 × 10−1 | 3.7 × 10−1 |
| fucose | 2.6 × 10−2 | 2.3 × 10−2 | 2.1 × 10−2 | 1.5 × 10−2 | 1.8 × 10−2 |
| mannose | 3.3 × 10−2 | 4.3 × 10−2 | 4.6 × 10−1 | 2.5 × 10−1 | 3.5 × 10−1 |
| rhamnose | 1.5 × 10−1 | 2.6 × 10−1 | 2.4 × 10−1 | 2.9 × 10−1 | 2.8 × 10−1 |
| ribose | 2.8 × 10−1 | 2.5 × 10−1 | 2.7 × 10−1 | 3.4 × 10−1 | 2.4 × 10−1 |
| xylose | 1.9 × 10−2 | 1.3 × 10−2 | 1.5 × 10−2 | 2.0 × 10−2 | 3.5 × 10−2 |
| Amino acids | |||||
| alanine | 3.5 × 10−2 | 8.5 × 10−2 | 1.9 × 10−2 | 0.7 × 10−3 | 0.5 × 10−3 |
| aspartic acid | 8.2 × 10−1 | 4.3 × 10−1 | 1.2 × 10−2 | 8.2 × 10−2 | 1.5 × 10−1 |
| glycine | 6.5 × 10−3 | 8.4 × 10−3 | 2.3 × 10−3 | 1.1 × 10−3 | 1.0 × 10−3 |
| lysine | 4.2 × 10−3 | 2.7 × 10−2 | 0.5 × 10−2 | 0.5 × 10−2 | 3.4 × 10−3 |
| serine | 5.3 × 10−2 | 8.1 × 10−2 | 8.3 × 10−2 | 1.2 × 10−2 | 0.6 × 10−2 |
| threonine | 3.5 × 10−2 | 6.4 × 10−3 | 3.9 × 10−3 | 8.8 × 10−2 | 8.2 × 10−2 |
| proline | 4.2 × 10−3 | 50.1 × 10−1 | 20.9 × 10−1 | 15.3 × 10−1 | 56.0 × 10−1 |
| Fatty acids | |||||
| eicosapentaenoic (20:5) | 3.8 × 10−2 | 4.5 × 10−2 | 4.9 × 10−1 | 6.8 × 10−1 | 8.3 × 10−2 |
| linolenic (18:2) | 1.1 × 10−3 | 9.8 × 10−2 | 9.3 × 10−2 | 6.4 × 10−2 | 8.1 × 10−2 |
| myristic (14:0) | 5.2 × 10−4 | 5.3 × 10−3 | 5.5 × 10−4 | 4.9 × 10−4 | 2.3 × 10−4 |
| palmitic (16:0) | 5.1 × 10−4 | 5.6 × 10−3 | 5.0 × 10−4 | 6.7 × 10−4 | 1.5 × 10−4 |
| stearic (18:0) | 5.9 × 10−4 | 6.2 × 10−3 | 6.3 × 10−3 | 3.4 × 10−4 | 3.2 × 10−4 |
| Others 1 | |||||
| glycine-betaine | 1.1 × 10−4 | 1.0 × 10−2 | 3.9 × 10−3 | 1.1 × 10−2 | 4.3 × 10−2 |
| homarine | 0.8 × 10−4 | 1.7 × 10−2 | 2.3 × 10−3 | 3.0 × 10−2 | 3.3 × 10−2 |
| glycerol | 1.2 × 10−4 | 2.7 × 10−2 | 1.6 × 10−3 | 4.1 × 10−2 | 5.1 × 10−2 |
1 Quaternary ammonium compounds such as glycine–betaine and homarine (N-methyl picolinic acid) and the polyol glycerol.