Superradiance Transition and Nonphotochemical Quenching in Photosynthetic Complexes

Berman, Gennady Petrovich¹  Nesterov, Alexander²  Lopez, Gustavo²  Sayre, Richard Thomas¹ 

[1]Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

[2]Universidad de Guadalajara, Departamento de F??sica, Jalisco (Mexico)

关键词: Biological Science;   

DOI  :  10.2172/1178716
RP-ID  :  LA-UR--15-23019
PID  :  OSTI ID: 1178716

美国|英语

来源: SciTech Connect

【 摘 要 】

Photosynthetic organisms have evolved protective strategies to allow them to survive in cases of intense sunlight fluctuation with the development of nonphotochemical quenching (NPQ). This process allows light harvesting complexes to transfer the excess sunlight energy to non-damaging quenching channels. This report compares the NPQ process with the superradiance transition (ST). We demonstrated that the maximum of the NPQ efficiency is caused by the ST to the sink associated with the CTS. However, experimental verifications are required in order to determine whether or not the NPQ regime is associated with the ST transition for real photosynthetic complexes. Indeed, it can happen that, in the photosynthetic apparatus, the NPQ regime occurs in the ???non-optimal??? region of parameters, and it could be independent of the ST.