Fig. 6

Changes in the cellular pigment contents, and photosynthetic activities during cultivation. WT, dAS1T, and dAS1T∆wzt cells were grown under high light (180 μE m⁻² s⁻¹) in nitrate-containing medium. a, b Chlorophyll and phycobiliprotein contents, respectively. Data are the mean ± SE from the same biological triplicates shown in Fig. 4. c, d Activities of photosynthetic O₂ evolution measured with CO₂ and 1 mM 1,4-benzoquinone as the electron acceptor, respectively, under illumination at 1000 μE m⁻² s⁻¹. Data shown are the mean ± SE from biological triplicates. Black circles WT; blue circles dAS1T; green circles dAS1T∆wzt