Related Experiment Video
Updated: Nov 8, 2025

Catalytic Scavenging of Plant Reactive Oxygen Species In Vivo by Anionic Cerium Oxide Nanoparticles
Published on: August 26, 2018
Ozone effects on nitrogen incorporation and superoxide dismutase activity in spruce seedlings (Picea abies L.)
1Centre for Environmental Research Leipzig-Halle, Department of Chemical Ecotoxicology, P. O. Box 2, D-04301 Leipzig, Germany.
Abstract:
The influence of low concentrations of ozone (100 ppb) on nitrogen incorporation and the specific activity of superoxide dismutase (SOD) in 3-yr-old cloned spruce seedlings was studied under controlled conditions (potted plants in fumigation chambers). For the determination of nitrogen uptake, 15 N tracer experiments were performed using emission spectrometric isotope analysis. Superoxide dismutase (SOD) activity was determined by inhibition of formazan formation. Low doses of ozone led to a significant increase in both NO3 -N uptake from the soil and in specific SOD activity. The results show that stable isotope 15 N tracer technique analysis is a suitable tool for the investigation of potential impacts of air pollutants on the nitrogen metabolism of plants.
Related Concept Videos
Adaptations that Reduce Water Loss
Regulation of Transpiration by Stomata
Responses to Heat and Cold Stress
Oxidative Cleavage of Alkenes: Ozonolysis
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
Oxygen Requirements and Growth Patterns
The Calvin Benson Cycle

