Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01, Košice, Slovak Republic.
J Biol Phys. 2021 Sep;47(3):271-286. doi: 10.1007/s10867-021-09576-7. Epub 2021 Jul 2.
The exciton transfer between light-harvesting complex 1(LH1) and photosynthetic reaction center dimer is investigated theoretically. We assume a ring shape structure of the LH1 complex with dimer in the ring centre. The kinetic equations which describe the energy transfer between the antenna complex and reaction center dimer were derived. It was shown that the dimer does not act as a photon trap. There is a weak localization of the exciton on the dimer and there is relatively rapid back exciton transfer from dimer to antenna complex which depends on the number of the pigment molecules in the antenna ring. The relation between the rates of the exciton transfer from the antenna complex to dimer and back transfer from dimer to antenna complex has been derived.
我们从理论上研究了聚光复合物 1（LH1）与光合反应中心二聚体之间的激子转移。我们假设 LH1 复合物具有环形结构，二聚体位于环的中心。推导出了描述天线复合物和反应中心二聚体之间能量转移的动力学方程。结果表明，二聚体不作为光子陷阱。激子在二聚体上有弱局域化，并且从二聚体到天线复合物的反向激子转移相对较快，这取决于天线环中的色素分子数量。还推导出了从天线复合物到二聚体的激子转移速率与从二聚体到天线复合物的反向转移速率之间的关系。
