| Comments |
p.4050 right column 2nd paragraph:"Chl and phycobilisome pigments fluoresce at room temperature with spectral maxima in the 640- to 700-nm range. PC [Phycocyanin] emits fluorescence with an ˜650-nm maximum, APC [allophycocyanin] at 665 nm, and APC-B [allophycocyanin-B] at 675 nm, and the main emission wavelength of Chl is at 685 nm (ref 11). Phycobilisomes are highly fluorescent in isolated form, but the fluorescence yield is decreased in intact systems because in vivo the excitation energy is transferred efficiently from PC to APC to APC-B or to long-wavelength APC associated with the ApcE protein (terminal emitter) (ref 12) and eventually to Chl in the thylakoid membranes." |