2000
DOI: 10.1046/j.1365-313x.2000.00727.x
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Modified lignin in tobacco and poplar plants over‐expressing the Arabidopsis gene encoding ferulate 5‐hydroxylase

Abstract: SummaryFerulate 5-hydroxylase (F5H) is a cytochrome P450-dependent monooxygenase that catalyses the hydroxylation of ferulic acid, coniferaldehyde and coniferyl alcohol in the pathways leading to sinapic acid and syringyl lignin biosynthesis. Earlier studies in Arabidopsis have demonstrated that F5H overexpression increases lignin syringyl monomer content and abolishes the tissue-speci®city of its deposition. To determine whether this enzyme has a similar regulatory role in plants that undergo secondary growth… Show more

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Cited by 273 publications
(207 citation statements)
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“…4c). This is consistent with previous results indicating that Arabidopsis F5H overexpression in tobacco results in reduced lignin content (Franke et al, 2000). A more comprehensive study on the lignin changes in this population of GUS2A-F5H-expressing plants will be published elsewhere (B.M.…”
Section: Targeting Of An Er Membrane Proteinsupporting
confidence: 91%
“…4c). This is consistent with previous results indicating that Arabidopsis F5H overexpression in tobacco results in reduced lignin content (Franke et al, 2000). A more comprehensive study on the lignin changes in this population of GUS2A-F5H-expressing plants will be published elsewhere (B.M.…”
Section: Targeting Of An Er Membrane Proteinsupporting
confidence: 91%
“…pathway toward syringyl monolignol biosynthesis (Franke et al, 2000;Li et al, 2000). Transcript variation of Cald5H explains 38% of the diameter growth variation in this E. grandis backcross family (Fig.…”
Section: Transcript Level and Growth Correlationmentioning
confidence: 96%
“…Both reactions are important for the introduction of methoxy groups at the aromatic ring which determine the extractability of lignin (see above). Significant changes of lignin content and S/G ratio in trees have been achieved by genetic engineering of 4CL (Hu et al 1999), F5H (Franke et al 2000), CCoAOMT (Meyermanns et al 2000), COMT (Tsai et al 1998 and CAD (Baucher et al 1996, Lapierre et al 1999.…”
Section: Modifications In Lignin Content and Compositionmentioning
confidence: 99%
“…The significant reduction in lignin had the additional effect that the cellulose content of the wood was increased by 15% and the transgenics exhibited higher growth rates both in height and stem diameter. Another attempt using transgenic poplars aimed at an increase of the syringyl to guaiacyl ratio in lignin (Franke et al 2000). The overexpression of F5H under the control of the C4H promoter, which allows expression of F5H in xylem parenchyma, increased the methoxylation of the monolignol residues.…”
Section: Modifications In Lignin Content and Compositionmentioning
confidence: 99%
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