Fast Isolation of Highly Active Photosystem II Core Complexes from Spinach

文献类型： 外文期刊

第一作者： Wang, Zhao-Gai

作者： Wang, Zhao-Gai;Xu, Tian-Hua;Liu, Cheng;Yang, Chun-Hong;Wang, Zhao-Gai;Xu, Tian-Hua;Wang, Zhao-Gai

作者机构：

期刊名称：JOURNAL OF INTEGRATIVE PLANT BIOLOGY （ 影响因子：7.061； 五年影响因子：6.002 ）

ISSN： 1672-9072

年卷期： 2010 年 52 卷 9 期

页码：

收录情况： SCI

摘要： Purification of photosystem II (PSII) core complexes is a time-consuming and low-efficiency process. In order to isolate pure and active PSII core complexes in large amounts, we have developed a fast method to isolate highly active monomeric and dimeric PSII core complexes from spinach leaves by using sucrose gradient ultracentrifugation. By using a vertical rotor the process was completed significantly faster compared with a swing-out rotor. In order to keep the core complexes in high activity, the whole isolation procedure was performed in the presence of glycine betain and pH at 6.3. The isolated pigment-protein complexes were characterized by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, absorption spectroscopy, 77 K fluorescence spectroscopy and high performance liquid chromatography. Our results show that this method is a better choice for quick and efficient isolation of functionally active PSII core complexes.

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