Characteristics of the relative maximum in the decay of delayed light emission from Pothos leaf following far-red excitation.
Following illumination with wavelengths longer than 700 nm, the intensity of light emission from Pothos aurea leaf falls for 1 min and then increases to a maximum after 2 min in the dark. The spectrum of this minute-range liminescence matches that of prompt fluorescence excited at the same wavelength, but differs from that of prompt or minute-range delayed emission excited by wavelengths shorter than 700 nm. This emission is less sensitive to heat damage than millisecond delayed emission, and may originate from photosystem I.
Department of Biochemistry, Ohio State University, 43210, Columbus, Ohio, USA.
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Desai
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