Abstract
Some properties of sulfate reduction sys-tem in higher plant tissues were investigated by the incorporation experiments using S35-labeled sulfate.
Sulfate reduction in the leaves was inhibited by molybdate ion. Addition of non-labeled sulfite stimulated the reduction, but the stimulating effect was declined by increasing the concentration of sulfite.
S35-Labeled product of sulfate reduction was shown to be sulfite in the presence of non-labeled sulfite, but both sulfite and sulfide were produced in the absence of sulfite.
Sulfite formation from sulfate in the leaves was activated with light.
The authors wish to express their gratitude to Prof. I. Uritani and Dr. T. Akazawa for their constant encouragement and helpful advice.
