关键词: 丙酮酸磷酸双激酶, C3植物, C4植物, 逆境胁迫, 活性调控

Abstract: It is well known that pyruvate orthophosphate dikinase (PPDK) plays a controlling role in the PEP-regeneration phase of the C4 photosynthetic pathway. However, PPDK has no established function in C3 plants and its role in stress response has remained unclear. The advances in plant PPDK were reviewed in this paper, including PPDK function in C4 and C3 plant, the activity regulation of PPDK in plants, PPDK gene engineering and the role of PPDK in responding stress. The results and achievements were expected to provide the theoretically basis for deciphering the salt tolerance mechanism and breeding cultivars with high stress tolerance.

Key words: pyruvate orthophosphate dikinase (PPDK), C3 plant, C4 plant, stress, activity regulation