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Mesotrione is a selective herbicide used mainly in maize crops. [1] It is a synthetic compound inspired by the natural substance leptospermone found in the bottlebrush tree Callistemon citrinus . It inhibits the enzyme 4-hydroxyphenylpyruvate dioxygenase (HPPD) [ 3 ] and is sold under brand names including Callisto and Tenacity.
Leptospermone was the blueprint for the compound mesotrione which has the trade name Callisto, ... This page was last edited on 21 January 2022, at 22:05 (UTC).
In the mid-1980s, scientists at Stauffer Chemical Company published patents to benzoyl-substituted cyclohexanediones which led to their product mesotrione. [3] This encouraged workers at Rhône-Poulenc to expand their own research into molecules with the same mode of action as these 4-hydroxyphenylpyruvate dioxygenase inhibitors.
All of the herbicidal and pharmaceutical triketone HPPD inhibitors including mesotrione (Callisto)(I), [21] sulcotrione (Mikado)(II) [22] and nitisinone (Orfadin)(III) [23] had their common origin in the observation in 1977 by Reed Gray, a biologist at Stauffer Chemical's Western Research Center (WRC) in California, that few weeds emerged under ...
This is a list of herbicides.These are chemical compounds which have been registered as herbicides.The names on the list are the ISO common name for the active ingredient which is formulated into the branded product sold to end-users. [1]
For example, Quinmerac is classified as Group 4/29 (O/L) because it is both an Auxin mimic (Group 4 or O) and inhibits cellulose synthesis (Group 29 or L). [ 9 ] Groups
— Warriors PR (@WarriorsPR) November 21, 2024 Melton went down in the Warriors’ 120-117 win over the Dallas Mavericks last week, though it’s unclear exactly when he was hurt in that game.
21-Deoxycortisol, also known as 11β,17α-dihydroxyprogesterone or as 11β,17α-dihydroxypregn-4-ene-3,20-dione, is a naturally occurring, endogenous steroid related to cortisol (11β,17α,21-trihydroxyprogesterone) which is formed as a metabolite from 17α-hydroxyprogesterone via 11β-hydroxylase.