chlorophyll-a and tricin

Halophytic grasses have been recently targeted as possible sources of nutraceutical and medicinal compounds. Nonetheless, few studies have been conducted on the phytochemistry and biological activities of metabolites produced by these plants. Among these,

Topics: Acetylcholinesterase; Anti-Bacterial Agents; Antifungal Agents; Antioxidants; Chlorophyll; Cholinesterase Inhibitors; Chromatography, High Pressure Liquid; Coumaric Acids; Dietary Supplements; Flavones; Flavonoids; Flavonols; Free Radical Scavengers; Lignans; Plant Extracts; Plants, Medicinal; Poaceae; Polyphenols; Salt-Tolerant Plants; Spectrometry, Mass, Electrospray Ionization; Xanthophylls

Despite increasing knowledge of allelochemicals as leads for new herbicides, relatively little is known about the mode of action of allelochemical-based herbicides on herbicide-resistant weeds. In this study, herbicidal activities of a series of allelochemical tricin-derived compounds were evaluated. Subsequently, a benzothiazine derivative 3-(2-chloro-4-methanesulfonyl)-benzoyl-hydroxy-2-methyl-2H-1,2-benzothiazine-1,1-dioxide with 4-hydroxyphenyl-pyruvate dioxygenase (HPPD) inhibiting activity was identified as a target compound on photosynthetic performance of penoxsulam-resistant versus -susceptible barnyardgrass (Echinochloa crus-galli). Regardless of barnyardgrass biotype, the benzothiazine derivative greatly affected chlorophyll fluorescence parameters (Fv/Fm, ETR

Topics: Chlorophyll; Echinochloa; Flavonoids; Herbicide Resistance; Herbicides; Oxidoreductases; Pheromones; Photosynthesis; Plant Weeds; Sulfonamides; Thiazines; Uridine