Photons absorbed by per excited cross-section (ABS/CSo) and used to move electron transport beyond QA- per excited cross-section (ETO/ CSo) decreased throughout the senescence.

• 单位激发截面所吸收的光量子（ABS/CSo）以及用于电子传递的光量子(ETO/CSO)随着衰老也逐渐下降。