Effect of SO2, on the activity of adenosine 5'-phosphosulfate sulfotransferase from spruce trees (Picea abies) in fumigation chambers and under field conditions

Tschanz, Andreas; Landoit, Werner; Bleuler, Peter; Brunold, Christian (1986). Effect of SO2, on the activity of adenosine 5'-phosphosulfate sulfotransferase from spruce trees (Picea abies) in fumigation chambers and under field conditions. Physiologia Plantarum, 67(2), pp. 235-241. Blackwell 10.1111/j.1399-3054.1986.tb02449.x

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The effect of SO2 on adenosine 5′-phosphosulfate sulfotransferase activity and various other parameters of needles from spruce (Picea abies L.) was studied using potted grafts in outdoor fumigation chambers and trees growing near a factory. In summer and autumn fumigation of grafted spruce, SO2, decreased the extractable activity of adenosine 5′-phosphosulfate sulfotransferase to 12–50% of the controls, and reduced the amount of 35S from sulphate incorporated into protein by excised branches to a comparable degree. SO2 treatment in January and February inhibited the increase in adenosine 5′phosphosulfate sulfotransferase activity measured in the controls during this time. ATP-sulfurylase activity was less affected by SO2. fumigation. In trees growing near a factory with high SO2. emission, the activity of adenosine 5′-phosphosulfate sulfotransferase was about 35% of that of trees from a control area. The low enzyme activity was correlated with a high content of sulfate and compounds containing thiol groups.

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