Evaluation of stress tolerance
The superoxide dismutase, peroxidase, and catalase activities and the
malondialdehyde and H2O2 levels were
detected using the corresponding Suzhou Comin Biotechnology test kits
(Suzhou Comin Biotechnology Co., Ltd, Suzhou, China). The presence of
O2− in leaf samples was determined by staining with
nitro blue tetrazolium.