Juanulloa aurantiaca

Under conditions of low photorespiration, about 90% of photochemical product is allocated to COj fixation. The progression from light limitation to light saturation in photosynthesis is illustrated in Pig. 3 A which shows a typical light saturation curve for photosynthesis illustrated in the shmb Juanulloa aurantiaca. The quantum requirement per mole COj fixed (on an incident irradiance basis) increases as the irradiance and rate of CO2 assimilation increase. The higher the flux the lower the efficiency of COj assimilation (Fig. 3B). As the ATP and NADPH requirements for COj fixation are independent of... 

Fig. 4. The effect of irradiance on the quantum yield for electron transport by Photosystems I ( ) and II (O) measured simultaneously with the irradiance response of CO2 assimilation (Fig. 3a) in Juanulloa aurantiaca.

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