Table 1.

Fluorescence levels and associated light treatments used for cyanobacterial fluorescence quenching analysisa

Fluorescence levelLight treatment (weak modulated measuring beam throughout)
FO Dark
F MdarkDark + saturating flash
FS Actinic light
FO Dark or weak far-red
FM Actinic light + saturating flash
FM Actinic light + DCMU
  • a For further details see .