C3和C4植物的氮素利用机制
张璐1,2,何新华2,3,*(
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Nitrogen Utilization Mechanism in C3 and C4 Plants
Lu Zhang1,2,Xinhua He2,3,*()
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图1. C3和C4植物叶片碳同化和氮同化示意图
(A) C3植物叶片碳同化和氮同化; (B) C4植物叶片碳同化和氮同化。AA: 氨基酸; 3PGA: 3-磷酸甘油酸; GAP: 3-磷酸甘油醛; GS: 谷氨酰胺合成酶; GOGAT: 谷氨酸合成酶; NiR: 亚硝酸还原酶; NR: 硝酸还原酶; PEP: 磷酸烯醇式丙酮酸; RUBP: 1,5-二磷酸核酮糖
Figure 1. A schematic graph of carbon and nitrogen assimilation in C3 and C4 plant leaves
(A) Carbon and nitrogen assimilation in leaves of C3 plants; (B) Carbon and nitrogen assimilation in leaves of C4 plants. AA: Amino acid; 3PGA: 3-phosphoglyceric acid; GAP: 3-phosphoglyceraldehyde; GS: Glutamine synthetase; GOGAT: Glutamate synthase; NiR: Nitrite reductase; NR: Nitrate reductase; PEP: Phosphoenolpyruvic acid; RUBP: Ribulose-1,5-disphosphate
