NMR evidence for benzodioxane structures resulting from incorporation of 5-hydroxyconiferyl alcohol into Lignins of O-methyltransferase-deficient poplars

J Ralph; C Lapierre; F Lu; J M Marita; G Pilate; J Van Doorsselaere; W Boerjan; L Jouanin

doi:10.1021/jf001042+

NMR evidence for benzodioxane structures resulting from incorporation of 5-hydroxyconiferyl alcohol into Lignins of O-methyltransferase-deficient poplars

J Agric Food Chem. 2001 Jan;49(1):86-91. doi: 10.1021/jf001042+.

Authors

J Ralph¹, C Lapierre, F Lu, J M Marita, G Pilate, J Van Doorsselaere, W Boerjan, L Jouanin

Affiliation

¹ U.S. Dairy Forage Research Center, Agricultural Research Service, U.S. Department of Agriculture, Madison, Wisconsin 53706, USA. jralph@facstaff.wisc.edu

PMID: 11302112
DOI: 10.1021/jf001042+

Abstract

Benzodioxane structures are produced in lignins of transgenic poplar plants deficient in COMT, anO-methyltransferase required to produce lignin syringyl units. They result from incorporation of 5-hydroxyconiferyl alcohol into the monomer supply and confirm that phenols other than the three traditional monolignols can be integrated into plant lignins.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Dioxanes / chemistry
Lignin / chemistry*
Lignin / metabolism*
Magnetic Resonance Spectroscopy*
Methyltransferases / deficiency*
Methyltransferases / genetics
Phenols / metabolism
Plants, Genetically Modified
Trees / enzymology*
Trees / genetics

Substances

Dioxanes
Phenols
Lignin
coniferyl alcohol
Methyltransferases
caffeate O-methyltransferase