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Titolo:
Cross-coupling of hydroxycinnamyl aldehydes into lignins
Autore:
Kim, H; Ralph, J; Yahiaoui, N; Pean, M; Boudet, AM;
Indirizzi:
USDA ARS, US Dairy Forage Res Ctr, Madison, WI 53706 USA USDA ARS MadisonWI USA 53706 Dairy Forage Res Ctr, Madison, WI 53706 USA Univ Wisconsin, Dept Forestry, Madison, WI 53706 USA Univ Wisconsin Madison WI USA 53706 Dept Forestry, Madison, WI 53706 USA Unite Mixte Rech, Pole Biotechnol Vegetale, F-31326 Castanet Tolosan, France Unite Mixte Rech Castanet Tolosan France F-31326 astanet Tolosan, France CEA, DSV, DEVM, Grp Rech Appl & Phytotechnol, St Paul Durance, France CEASt Paul Durance France Appl & Phytotechnol, St Paul Durance, France
Titolo Testata:
ORGANIC LETTERS
fascicolo: 15, volume: 2, anno: 2000,
pagine: 2197 - 2200
SICI:
1523-7060(20000727)2:15<2197:COHAIL>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
CINNAMYL-ALCOHOL-DEHYDROGENASE; DOWN-REGULATION; CONIFERYL ALDEHYDE; TOBACCO PLANTS; MAIZE; BIOSYNTHESIS; LIGNIFICATION; MUTANT; UNITS; GENE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Ralph, J USDA ARS, US Dairy Forage Res Ctr, Madison, WI 53706 USA USDA ARS Madison WI USA 53706 age Res Ctr, Madison, WI 53706 USA
Citazione:
H. Kim et al., "Cross-coupling of hydroxycinnamyl aldehydes into lignins", ORG LETT, 2(15), 2000, pp. 2197-2200

Abstract

[GRAPHICS]Pathways for hydroxycinnamyl aldehyde incorporation into lignins are revealed by examining transgenic plants deficient in cinnamyl alcohol dehydrogenase, the enzyme that converts hydroxycinnamyl aldehydes to the hydroxycinnamyl alcohol lignin monomers. In such plants the aldehydes incorporate into lignins via radical coupling reactions. As diagnostically revealed by long-range C-13-H-1 correlative NMR, sinapyl aldehyde (3,5-dimethoxy 4-hydroxy-cinnamaldehyde) 8-O-4-cross-couples with both gualacyl (3-methoxy-4-hydroxyphenyl-propanoid) and syringyl (3,5-dimethoxy-4-hydroxyphenyl-propanoid) units, whereas coniferyl aldehyde cross-couples only with syringyl units.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 06:59:05