Figure 4.

Changes in LHCII abundance after transfer of barley plants from air and low light (100 μmol m⁻² s⁻¹) to air plus strong light (1500 μmol m⁻² s⁻¹) or to low CO₂ and O₂ (50 μg mL⁻¹ CO₂ and 3% O₂) in moderate light (500 μmol m⁻² s⁻¹). The results are expressed relative to the LHCII level before the transfer to the new growth regimes. Lanes on the gels were loaded with equal protein content and were probed with anti-LHCIIb antibodies. The LHCII abundance was measured after 3 and 7 d of growth under the new conditions. Data are mean values of three experiments with sd being lower than 15% for all values.