oxygen-evolving

Further Studies on the Isolation and Characterization of the Oxygen-Evolving PS ⅱ Reaction Center Complex

具放氧功能的PSⅡ反应中心复合物的分离及其特性

These improvements narrow the disparity between the new model and ( Mn ) _4 cluster ( oxygen-evolving center in nature ) .

该模型进一步缩小了人工模型体系与天然光合作用释氧中心（OEC）四核锰簇的差异。

When the release percentage of bound Mn reached up to 57 % , the oxygen-evolving activity decreased to zero .

当结合Mn游离量达57%时，放氧活性降为零。

The K-step could not be observed in the fluorescence transients of red cells indicating that the oxygen-evolving complex was not affected during SC accumulation .

红色细胞中没有观察到瞬时荧光的K-step，表明次生类胡萝卜素积累过程中放氧复合体没有受到影响。

Treatments with CaCl_2 and Ca ( NO_3 ) _2 at high concentrations induced the release of bound Mn and the decrease of oxygen-evolving activity of the cyanobacterium .

较高浓度的CaCl2和Ca（NO3），处理引起藻体中结合态Mn的游离和藻的放氧活性的下降。

Oxygen-evolving photosynthetic organisms contain two types of photosynthetic reaction center , called photosystem ⅰ( PS ⅰ) and photosystem ⅱ ( PS ⅱ) . The PS ⅱ reaction center uses water as a source of electrons , light energy being used to oxidize water to provide protons and oxygen .

光合放氧生物包括光系统Ⅰ（PSⅠ）和光系统Ⅱ（PSⅡ）两种类型反应中心，光系统Ⅱ反应中心能以水作为电子给体，利用光能氧化水产生质子和氧气。