PHOTO PHOSPHORYLATION IN FLASHING LIGHT 203 



APj/min/BCHL 

 8 



6 n 



20 



25 



30 



35 

 msec. 



Fig. 1. Rate of phosphorylation after flash (Pi esterified in moles/min/mole 

 bacteriochlorophyll). Type A illumination, 26°C. 



APi/min/BCHL 

 6 



32,000 IUX + 88A 



2 



8 

 msec Light Period 



Fig. 2. Rate of photophosphorylation (Pi esterified in moles/min/mole bacterio- 

 chlorophyll) and length of light period. Type B illumination, 27°C. 



