HPPD
4-Hydroxyphenylpyruvate dioxygenase
4-Hydroxyphenylpyruvate dioxygenase (HPPD) is an Fe(II)-dependent, non-heme oxygenase that catalyzes the conversion of 4-hydroxyphenylpyruvate to homogentisate. HPPD catalyzes the second step in the pathway for the catabolism of tyrosine, that is common to essentially all aerobic forms of life. In plants this pathway has an anabolic branch from homogentisate that forms essential isoprenoid redox cofactors such as plastoquinone and tocopherol.he transformation catalyzed by HPPD has both agricultural and therapeutic significance
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HPPD Related Products (42)
Related Products (42)
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HPPD/PPO-IN-1
0 ImagesCat. No.: HY-178026CAS No.: 3087063-34-8HPPD/PPO-IN-1 (Compound B14) is dual-functional inhibitor of HPPD and PPO with IC50s of 0.12 μM and 0.51 μM for Arabidopsis thaliana HPPD and Nicotiana tabacum PPO, respectively. HPPD/PPO-IN-1 has broad-spectrum herbicidal activity against weeds with a crop safety to peanuts and cotton. HPPD/PPO-IN-1 can be used for the development of environmentally friendly herbicides.
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Quinclorac (Standard)
0 ImagesCat. No.: HY-B0871RCAS No.: 84087-01-4Quinclorac (Standard) is the analytical standard of Quinclorac (HY-B0871). This product is intended for research and analytical applications. 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.
