Vergleichende Untersuchungen an Polymermodellen des Lignins (DHP's) verschiedener Zusammensetzungen. 6. Mitt. Äthanolyse, Nitrobenzol-Oxidation und Hydrogenolyse

Faix, O.; Schweers, W.

doi:10.1515/hfsg.1975.29.2.48

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Distribution Of Main Structural Units Of Lignin1

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Cited by 8 publications

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“…On the other hand, the compound middle lamella fraction of spruce normal wood gave only a small amount of p-hydroxybenzaldehyde on alkaline nitrobenzene oxidation (Westermark 1985). As H lignin seems to be highly condensed, it can not be estimated quantitatively by degradative methods (Faix andSchweers 1975, Terashima 1989). However, interestingly, most compression woods in gymnosperms gave a considerable amount of phydroxybenzaldehyde follwing the oxidation.…”

Section: Distribution Of Main Structural Units Of Ligninmentioning

confidence: 99%

Regulation of Syringyl to Guaiacyl Ratio in Lignin Biosynthesis

Fukushima

2001

J Plant Res

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Recent findings, hypotheses and controversies on lignin biosynthesis and results of gene manipulations are reviewed. The distribution of the three main structural units o f lignin, p-hydroxyphenyl (H)-, guaiacyl (G)-and syringyl (S) propane, in sku is described. New pathways that regulate the ratio of S to G moieties operating at the stages of cinnamoyl CoA, cinnamyl aldehyde and cinnamyl alcohol are introduced. The roles of monolignol glucoside in the lignification of tree xylem are discussed. The results of gene manupulations that alter the lignin structures are also introduced.

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Section: Distribution Of Main Structural Units Of Ligninmentioning

confidence: 99%