Toxicology
Pyrazolinate, Pyrazoxifen, Benzofenap, Topramezone and Pyrasulfotole are so far the benzoylpyrazole introduced into the herbicide market.
These compounds inhibit 4-hydroxyphenylpyruvate dioxygenase (HPPD) n plants and animals. HPPD is an iron-dependent non-heme oxygenase involved in the metabolic pathway of tyrosine with very different roles in prokaryote organisms, plants, and animal (Santucci et al,2017).
Inhibition of HPPD leads to accumulation of tyrosine and and reduction in tyrosine toxic metabolites (assocciated with Type I Tyrosinemia disease-caused by inactivity of the fumaryl acetoacetate hydrolase (an enzyme downstream of HPPD itself (Santucci et al,2017).
HPPD inhibitors have recently . . .
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