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In order to reveal effect mechanism of crop reactive oxygen species (ROS) metabolic system under exogenous salicylic acid (SA) to ozone (O3) stress, open top chambers were utilized to investigate the change of ROS production rate, lipid peroxidation extent, anti-oxidative enzymes activities and antioxidant content in soybean (Glycine max.) leaves. Exogenous SA treatment relieves the aggravation of...
To understand the physiological and biochemical response of the lead-accumulator plant pseudostellaria maximowicziana (Franch.et Savat.) Pax to lead and zinc stresses, the pot experiment was used to study the protective enzymes (SOD, CAT and POD) activity and MDA content of pseudostellaria maximowicziana under lead and zinc stresses. The results showed as follows: with the increase of lead concentration,...
Nitric oxide (NO) serves as a bioactive molecule involved in antioxidant and anti-stress agent in tolerance responses to abiotic stress. Here, we investigated the effects of exogenous sodium nitroprusside (SNP), a NO donor, on both the ROS metabolism and functions of plasma membrane and tonoplast in tomato plants treated with 50 muM CuCl2. Cu stress induced significant accumulation of H2O2, led to...
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