Correlation between Rubisco,Rubisco activase and diurnal photosynthesis rate changes of flag leaf in wheat
Rubisco is the major photosynthetic enzyme in plants,and its activity in vivo is regulated by Rubisco activase.The correlation between Rubisco,Rubisco activase and diurnal photosynthesis rate changes in wheat leaves was investigated.The results showed that the photosynthetic rate,Rubisco initial activity and Rubisco activase activity are all showed distinct diurnal changes.The photosynthetic rate is!affected by Rubisco initial activity,that is,the activation rate of Rubisco which activated by Rubisco activase,while photosynthetic rate has little correlation with the contents of Rubisco and Rubisco activase.