pH Dependence of Chlorophyll States, Protein Structures and Function of the PSII Membranes
pH Dependence of Chlorophyll States, Protein Structures and Function of the PSII Membranes
李冬海;阮翔;许强;王可玢;公衍道;匡廷云;张秀芳;赵南明
【期刊名称】《清华大学学报(英文版)》 【年(卷),期】2003(008)004
【摘要】The effect of varying pH on the photosystem II (PSII) membrane was studied using
absorption and steady-state fluorescence
spectroscopy, and using a variable fluorescence technique.pH variations induced significant changes in the chlorophyll states of the PSII membrane, but no effect was seen on the chlorophyll fluorescence parameter F′v/F′m.For acidic pH conditions, protein structures of the PSII membrane were slightly altered, whilst at alkaline pH levels, large changes in the protein structure of the PSII membrane were detected.The results indicate that the microenvironment around Cys in the PSII membrane is very susceptible to alkaline pH conditions, and that in the acid (4≤pH<7) and alkaline (9≥pH>7) regions, pH variation has no effect on the protein structures of the PSII reaction center (RC). 【总页数】5页(493-497)
【关键词】photosystem II (PSII);chlorophyll fluorescence;pH treatment 【作者】李冬海;阮翔;许强;王可玢;公衍道;匡廷云;张秀芳;赵南明
【作者单位】State Key Laboratory of Biomembrane and Membrane Biotechnology, Department of Biological Sciences and Biotechnology,
Tsinghua University, Beijing 100084, China;State Key Laboratory of Biomembrane and Membrane Biotechnology, Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China;State Key Laboratory of Biomembrane and Membrane Biotechnology, Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China;Photosynthesis Research Center, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;State Key Laboratory of Biomembrane and Membrane Biotechnology, Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China;Photosynthesis Research Center, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;State Key Laboratory of Biomembrane and Membrane Biotechnology, Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China;State Key Laboratory of Biomembrane and Membrane Biotechnology, Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China 【正文语种】中文 【中图分类】Q5 【文献来源】
https://www.zhangqiaokeyan.com/academic-journal-cn_tsinghua-science-technology_thesis/0201250464089.html 【相关文献】
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pH Dependence of Chlorophyll States, Protein Structures and Function of the PSII Membranes
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