光抑制叶绿体反应。二、多种效应。
Photoinhibition of Chloroplast Reactions. II. Multiple Effects.
机构信息
Research Institute for Advanced Studies, 1450 South Rolling Road, Baltimore, Maryland.
出版信息
Plant Physiol. 1966 Jun;41(6):1044-9. doi: 10.1104/pp.41.6.1044.
Abstract
Ultraviolet light inhibits the photoreduction of 2,6-dichlorophenolindo-phenol or nicotinamide adenine dinucleotide phosphate with water as the electron donor (evolution of oxygen) but not the photoreduction of nicotinamide adenine dinucleotide phosphate with ascorbate as the electron donor. It inhibits photophosphorylation associated with either system. Experiments undertaken to test whether plastoquinone is the site of UV inhibition yielded inconclusive results.Visible light (> 420 mmu) causes the loss of all chloroplast activities, photosystem I being more sensitive than system II. The data suggests 2 modes of action for visible light. The one sensitized by system II results in damage resembling that of UV light. The other, sensitized by system I, results in the destruction of the reaction center of this system.
摘要
紫外线抑制 2,6-二氯苯酚靛酚或烟酰胺腺嘌呤二核苷酸磷酸与水作为电子供体的光还原（氧气的进化），但不抑制以抗坏血酸作为电子供体的烟酰胺腺嘌呤二核苷酸磷酸的光还原。它抑制与任一系统相关的光合磷酸化。为了测试质体醌是否是紫外线抑制的部位而进行的实验得出的结果并不明确。可见光（>420nm）会导致所有叶绿体活性的丧失，光系统 I 比光系统 II 更敏感。这些数据表明可见光有两种作用模式。一种由系统 II 敏化，导致类似于紫外线的损伤。另一种由系统 I 敏化，导致该系统反应中心的破坏。
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本文引用的文献
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Photoinhibition of chloroplast reactions. I. Kinetics and action spectra.叶绿体反应的光抑制。I. 动力学和作用光谱。
Plant Physiol. 1966 Jun;41(6):1037-43. doi: 10.1104/pp.41.6.1037.
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Isolation of Plastoquinones C and D from Spinach Chloroplasts.从菠菜叶绿体中分离质体醌C和D。
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Photooxidation of Cytochromes c, f, and Plastocyanin by Detergent Treated Chloroplasts.经去污剂处理的叶绿体对细胞色素c、f和质体蓝素的光氧化作用
Plant Physiol. 1964 Jul;39(4):513-20. doi: 10.1104/pp.39.4.513.
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Enhancement in Chlorella.小球藻中的增强作用。
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TWO LIGHT REACTIONS IN TPN REDUCTION BY SPINACH CHLOROPLASTS.菠菜叶绿体还原三磷酸吡啶核苷酸中的两个光反应。
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