玉米磷酸烯醇式丙酮酸羧化酶基因的研究进展

高等植物按照CO₂不同的同化途径，分为C₃、C₄和CAM植物。由于C₄植物具有高光效基因，使其在高温、高光照、高氧分压条件下具有比C₃植物更高的光合作用效率。目前，很多学者致力于研究玉米中的高光效基因-磷酸烯醇式丙酮酸羧化酶基因（PEPC），并试图将此基因转入到C₃植物中，使C₃植物的光合特性得到一定改善，进而使其产量提高。本文综述将C₄高光效基因转入到C₃植物后，C₃植物的生理生化变化和对其光合作用的影响，对向C₃植物中导入pepc基因能否提高其光合作用效率和产量的潜在可能性进行探讨。

Research Progress on Phosphoenolpy Ruvatecarboxylase(PEPCase) of Maize

Plants could be classified into three types such as C₃, C₄ and CAM plant according to the CO₂ assimilation mechanisms. C₄ plant acquired a series of high performance photosynthetic genes, which confers to more efficient photosynthesis than C₃ plant under adverse conditions such as high photo-intensity, temperature and oxygen partial pressure. Many scholars devoted themselves to research the Phosphoenolpy Ruvatecarboxylase(PEPCase) of maize, and try to introduce C₄ high performance genes into C₃ plant, in order to improve the photosynthetic characteristics to some degree and make a high production. The possibility of whether the physiological characteristic of C₃ transgenic plant with C₄ genes can increase the photosynthesis rate and yield was studied in this paper.