The relation between C-4 pathway enzymes and PSII photochemical function in soybean
文献类型: 外文期刊
第一作者: Li, WH
作者: Li, WH;Lu, QT;Hao, NB;Ge, QY;Zhang, QD;Jiang, GM;Du, WG;Kuang, TY
作者机构: Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China;Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China; Heilongjiang Acad Agr Sci, Inst Soybean, Harbin 150086, Peoples R China
关键词: soybean;C-4 pathway enzyme;chlorophyll fluorescence;PSII;correlation
期刊名称:ACTA BOTANICA SINICA ( 2006影响因子:0.599; )
ISSN: 0577-7496
年卷期: 2000 年 42 卷 7 期
收录情况: SCI
摘要: Four C-4 pathway enzymes of "Heinong 41" leaves of soybeans ( Glycine max (L) Merr.) were assayed in five developmental stages. P-n (the net photosynthetic rate) and the chlorophyll fluorescence parameters (F-v/F-o, qP, qN and Phi(PSII)) were also measured. The results indicated that the activities of C-4 enzymes, P-n, the chlorophyll fluorescence parameters and the ratio of PEPCase (PEP carboxylase)/RuBPCase (ribulose-1, 5-biphosphate) shared the same changing trait during the whole developmental stages of "Heinong 41". Correlation analysis showed that the activities of C-4 enzymes, P-n, the chlorophyll fluorescence parameters were positively correlated with the ratio of PEPCase/RuBPCase. All these suggested that the degree of C-4 pathway expression in "Heinong 41" leaves were positively correlated with its P-n; the photochemical function of PS ii was adjusted to meet the specific energy requirements for the operation of C-4 pathway with the improvement of C-4 expression.
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