Iron and manganese co-limit growth of the Southern Ocean diatom Chaetoceros debilis
Table 2
Connectivity between adjacent photosystems (p), time constant for electron transfer at PSII (τQa), absolute maximum electron transport rates (ETRmax), light saturation point (Ik) and light use efficiency (α) were measured for C. debilis grown in naturally FeMn-poor Antarctic seawater (-FeMn) and to which additions of either Mn alone (-Fe), Fe alone (-Mn) or both (control) were given.
Values represent the means ± SD (n = 3). Different letters indicate significant differences between treatments (p < 0.05).