
Mechanism of strong quenching of photosystem II chlorophyll fluorescence under drought stress in a lichen, Physciella melanchla, studied by subpicosecond fluorescence spectroscopy
Keywords: Chl, chlorophyll; DAS, decay-associated spectrum; EET, excitation energy transfer; F0, the fluorescence level in the dark adapted state; FM, the fluorescence level after the saturating pulse illumination; IRF, instrument response function; LHC II, light-h