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Substrate preferences of O-methyltransferases in alfalfa suggest new pathways for 3-O-methylation of monolignols.
Measurement of relative O-methyltransferase activities against all potential substrates in the monolignol pathway in developing alfalfa stem extracts revealed activities in the order: caffeoyl CoA >Expand
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Structural and compositional modifications in lignin of transgenic alfalfa down-regulated in caffeic acid 3-O-methyltransferase and caffeoyl coenzyme A 3-O-methyltransferase.
Isolated lignins from alfalfa deficient in caffeic acid 3-O-methyltransferase contained benzodioxanes resulting from the incorporation of the novel monomer, 5-hydroxyconiferyl alcohol. Due to theExpand
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The biosynthesis of monolignols: a "metabolic grid", or independent pathways to guaiacyl and syringyl units?
Lignin is a complex polymer formed by the oxidative polymerization of hydroxycinnamyl alcohol derivatives termed monolignols. The major monolignols in dicotyledonous angiosperm lignin areExpand
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Overexpression of Brassica juncea wild-type and mutant HMG-CoA synthase 1 in Arabidopsis up-regulates genes in sterol biosynthesis and enhances sterol production and stress tolerance.
Brassica juncea 3-hydroxy-3-methylglutaryl-CoA synthase (HMGS) is encoded by four isogenes (BjHMGS1-BjHMGS4). In vitro enzyme assays had indicated that the recombinant BjHMGS1 H188N mutant lackedExpand
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Monolignol biosynthesis in microsomal preparations from lignifying stems of alfalfa (Medicago sativa L.).
Microsomal preparations from lignifying stems of alfalfa (Medicago sativa L.) contained coniferaldehyde 5-hydroxylase activity and immunodetectable caffeic acid 3-O-methyltransferase (COMT), andExpand
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Chemotype-dependent metabolic response to methyl jasmonate elicitation in Artemisia annua.
Considerable difference in artemisinin and its direct precursors, artemisinic acid and dihydroartemisinic acid, was detected between two chemotypes within the species Artemisia annua (A. annua).Expand
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Substrate preferences of O-methyltransferases in alfalfa suggest new pathways for 3-O-methylation of monolignols.
Summary Measurement of relative O-methyltransferase activities against all potential substrates in the monolignol pathway in developing alfalfa stem extracts revealed activities in the order:Expand
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O-Methylation of benzaldehyde derivatives by "lignin specific" caffeic acid 3-O-methyltransferase.
Although S-adenosyl-l-methionine (SAM) dependent caffeic acid/5-hydroxyferulic acid 3/5-O-methyltransferase (COMT) is one of the key enzymes in lignin biosynthesis, the present work demonstrates thatExpand
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Genes that respond to H₂O₂ are also evoked under light in Arabidopsis.
Dear Editor, H2O2 has been recognized as a signal molecule involved in gene expression regulation (Mittler et al., 2011). Arabidopsis microarray data analysis revealed that about 1–2% of theExpand
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