Figure 6.
Effects of transfer to elevated CO2 on the diurnal oscillation of different rbcS transcripts. Ambient-CO2-grown plants were transferred to elevated CO2 at the beginning of d 1, and plants were collected through the 24-h period on d 6 of exposure. Ten micrograms of total RNA was used for northern-blot analysis. The hybridizing signal for each gene at 7:00 am from ambient-CO2-grown plants was defined as 100%. Values are means ± sd from three filters with total RNA extracted from one sample collection. Filled symbols, Ambient-CO2-grown plants; open symbols, high-CO2-treated plants.