... opposing, in uence of a third system: the thioredoxinsystem [10,11]. Thioredoxin is a small, redox active protein,capable in turn of reducing or oxidizing disulphide bonds in proteins. In chloroplasts, ... as being somecombination of the following: (a) production of redoxpotential in the form of NADPH; (b) production of glycolytic intermediates, reducing the demand put uponphosphofructokinase; ... choice of kinetic functions and/orparameters, or, whether the system was incapable of sustaining flux under any circumstances in the absence of light. This observation was made, in the first instance,...