Butler W L, Strasser R J
Proc Natl Acad Sci U S A. 1977 Aug;74(8):3382-5. doi: 10.1073/pnas.74.8.3382.
Equations for fluorescence and the rates of photochemistry of photosystem I and photosystem II are derived from a photochemical model for the photosynthetic apparatus that includes the various interactions of the light-harvesting chlorophyll a/b complex with photosystem I and photosystem II as specific photochemical rate constants. The degree of coupling between photosystem II and the chlorophyll a/b complex which is expressed as a product of two probability terms plays a central role in this three-pigment system. The cycling of excitation energy back and forth between photosystem II and the chlorophyll a/b complex increases the exciton density in both arrays of chlorophyll according to a simple analytical expression in the equations. These equations of the tripartite model provide new and credible insights into the photochemical apparatus of photosynthesis.
光合作用系统I和光合作用系统II的荧光方程及光化学速率是从光合装置的光化学模型推导而来的，该模型将捕光叶绿素a/b复合物与光合作用系统I和光合作用系统II的各种相互作用作为特定的光化学速率常数。光合作用系统II与叶绿素a/b复合物之间的耦合程度由两个概率项的乘积表示，在这个三色素系统中起着核心作用。根据方程中的一个简单解析表达式，激发能在光合作用系统II和叶绿素a/b复合物之间来回循环，增加了两个叶绿素阵列中的激子密度。这个三方模型的这些方程为光合作用的光化学装置提供了新的、可信的见解。
