Synergism of triggered luminescence by simultaneous treatment of pH transition and potassium addition in chloroplasts.
KCL-induced luminescence in relation to slow delayed light emission (greater than 3 s) and pH shift-triggered luminescence was studied in preilluminated chloroplasts. An activation pathway for KCl-induced luminescence similar to that for acidbase-triggered luminescence but different from that for delayed light emission is suggested. When the chloroplasts were subjected to a small amount of pH transition together with a simultaneous addition of KCl, a synergistic enhancement of triggered luminescence was observed. The synergism was not observed when the pH transition was increased. The results are interpreted according to the protonation model for stimulated luminescence.
D002736:Chloroplasts / Q000187:drug effects / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008163:Luminescent Measurements; D010944:Plants; D011188:Potassium / Q000494:pharmacology*; D013816:Thermodynamics
D011188:Potassium