Table I.

Photosynthesis and chlorophyll levels in cells starved of S and P

ConditionO2EvolutionChl LevelChl a/Chl b
μmol mg−1 Chl h−1 μmol 109 cells−1h−1 pg cell−1
TAP182.2  ± 15.81410  ± 1207.71  ± 0.792.60  ± 0.08
TAP-P53.9  ± 9.6 (29.6%)359  ± 64 (25.5%)6.66  ± 0.212.54  ± 0.11
TAP-S56.4  ± 8.0 (31.0%)344  ± 49 (24.4%)6.10  ± 0.342.60  ± 0.23

All values were calculated from at least five separately grown cultures and ses are given. Values in parentheses are relative to unstarved cells. Chl, Chlorophyll.