Biopolymers and cell. 2003; 19 (3): 247 - 251

The distinctions of paraquat induced oxidative stress sensitivity of larch callus lines

E. Yu. Garnik, Yu. M. Konstantinov, V. N. Smakov

The effect of low paraquat concentrations on the growth properties of eight Siberian larch (Larix sibirica Ledeb.) and three dahurian larch (Larix gmelinii Rupr. Rupr.) callus lines was studied. It was found that the extent to which callus growth decrease does not depend on callus line growth rate in control conditions. The possibility have been shown to differentiate larch callus lines with their oxidative stress sensitivity. No differences were found among callus lines of Siberian and dahurian larch species in their paraquat sensitivity. The approach described is advanced for use in physiological and molecular biological studies of cell tolerance to oxidative stress.