Glucose conjugates plants

Plant In plants, dichlobenil is transformed into glucose conjugates, insoluble residues, and hydroxy products that are phytotoxic (Ashton and Monaco, 1991). These include three phytotoxic compounds, namely 2,6-dichlorobenzonitrile, 3-hydroxy-2,6-dichlorobenzonitrile, and 4-hydroxy-... 

Plants. At 62 dat, no residues were found major metabolites were the phenol formed by mono-demethylation, and its glucose conjugate... 

TABLE II. Phase I Reactions that Produce Metabolites Susceptible to Glucose Conjugation in Higher Plants... 

A direct relationship has been observed between the ability of some plant species to form 0-glucosldes of herbicides and resistance of those species to the herbicides however. In most cases a phase I reaction proceeds glucose conjugation and It Is not known whether the phase I reaction or conjugation results In herbicide detoxification. Chlorpropham is metabolized in plants by ring-hydroxylation and subsequent conjugation with glucose (Equation 3). In vitro, the... 

Malonate hemi-ester glucose conjugates of xenobiotics are one of the most common forms of complex glucoside conjugate produced In plants. They are formed by the action of malonyl CoA transferase on glucose conjugates In the presence of malonyl CoA as Indicated In Equation 14. At least 9 pesticides have been Isolated from 7... 

Figure 9.7 Schematic representation of herbicide detoxification in a plant cell. Both XH and XZ are herbicides entering the oxidation-glucose conjugation pathway and the glutathione-dependent pathway, respectively. XOH is the hydroxylated herbicide XOGlc, XGS and Xcys are the glucose, GSH and Cysteine conjugates respectively. [Reproduced with permission of the authors from K. Kreuz and E. Martinoia, Herbicide Metabolism in Plants Integrated Pathways of Detoxication, in G. T. Brooks and T. R. Roberts, Eds., Pesticide Chemistry and Bioscience, The Food-Environment Challenge, Serial Pub. No. 233, The Royal Society of Chemistry, Cambridge, 1999, pp. 277-287.]...

The metabolism of triazolopyrimidine sulfonanilides (1-4) in plants has been reviewed [23, 24]. It has been shown that diclosulam (3) and doransulam-methyl (4) are rapidly metabolized in soybeans by facile conjugation with homoglutathione which displaces the 7-fluoro substituent (Fig. 2.4.1) [25]. This mechanism was found to only occur in soybeans for 3 and 4. Oxidation at the 4-position of the aniline ring occurs rapidly in maize for 3 and 4. In wheat, 4 undergoes O-dealkylation of 5-ethoxy followed by glucose conjugation and oxidation at the 4-position of the aniline ring occurs for 3 [25]. 

Bartholomew, D.M. et al. (2002) Alternate energy-dependent pathways for the vacuolar uptake of glucose and glutathione conjugates. Plant Physiol 130, 1562-1572... 

Esterification of 2,4-D with plant constituents via conjugation formed the p-D-glucose ester of 2,4-D (Thomas et ah, 1964). 

Plant. Degrades in plants to N-glucoside, glucose ester, conjugates, and insoluble residues (Ashton and Monaco, 1991). 

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