chlorophyll-a and halosulfuron-methyl

Halosulfuron-methyl (HSM) is a safe, selective and effective sulfonylurea herbicide (SU) for the control of sedge and broadleaf weeds in sugarcane, corn, tomato, and other crops. The primary site of action is acetolactate synthase (ALS), a key enzyme of branched chain amino acids (BCAAs) synthesis. In addition to ALS inhibition, BCAAs deficiencies and oxidative damage may be involved in toxic effects of SUs. However, secondary targets of HSM relevant to plant physiological responses are unclear. In the present study, comparative growth inhibition and peroxidization injury between sensitive and tolerance crops were observed at biochemical and physiological levels suggesting involvement of H

Topics: Acetolactate Synthase; Amino Acids; Chlorophyll; Ethylenes; Glycine max; Herbicides; Hydrogen Peroxide; Malondialdehyde; Oxidative Stress; Reactive Oxygen Species; Salicylic Acid; Sulfonylurea Compounds; Superoxide Dismutase; Zea mays