Quinclorac-¹³C

Quinclorac-¹³C is the ¹³C-labeled Quinclorac (HY-B0871). Quinclorac is a highly selective quinoline carboxylic acid synthetic auxin herbicide. Quinclorac weakly inhibits HPPD, accompanied by a transient decrease in carotenoids. Quinclorac upregulates ACC synthase (ACS), leading to the co-accumulation of ethylene and cyanide, while increasing the ABA/IAA ratio, which induces ROS burst, membrane lipid peroxidation (MDA) and lethal growth inhibition. Residual Quinclorac in soil can cause abnormal growth of subsequent tobacco crops. In calli of Phaseolus vulgaris, Quinclorac induces oxidative stress (increased MDA and decreased RGR), but cells after stepwise pressurized acclimation acquire a constitutive antioxidant state, which remains stable after de-acclimation and tolerates oxidative damage caused by Quinclorac. Quinclorac can be used in studies related to herbicide action mechanisms, bioremediation of soil residues, and adaptive responses of plant cells to oxidative stress^[1][2][3].