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).
aspen ( Populus tremuloides )
paper birch ( Betula papyrifera )
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.