Ozone-induced H₂O₂ accumulation in field-grown aspen and birch is linked to foliar ultrastructure and peroxisomal activity

Abstract

Saplings of three aspen (Populus tremuloides) genotypes and seedlings of paper birch (Betula papyrifera) were exposed to elevated ozone (1.5x ambient) and 560 p.p.m. CO₂, singly and in combination, from 1998 at the Aspen-FACE (free-air CO₂ enrichment) site (Rhinelander, USA).

Keywords

ozone, carbon dioxide, aspen ( Populus tremuloides ), paper birch ( Betula papyrifera ), oxidative stress, H2 O2, peroxisomes, catalase

Citation

Oksanen, E.; H iki , E.; Sober, J.; Karnosky, D.F. 2003. Ozone-induced H2O2 accumulation in field-grown aspen and birch is linked to foliar ultrastructure and peroxisomal activity. New Phytologist. 161: 791-799.