A laccase associated with lignification in loblolly pine xylem

Journal Article · Fri Apr 30 00:00:00 EDT 1993 · Science (Washington, D.C.); (United States)

DOI:https://doi.org/10.1126/science.260.5108.672· OSTI ID:6420371

Bao, W; O'Malley, D; Whetten, R; Sederoff, R R ^[1]

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1. North Carolina State Univ., Raleigh (United States)

Peroxidase has been thought to be the only enzyme that oxidizes monolignol precursors to initiate lignin formation in plants. A laccase was purified from cell walls of differentiating xylem of loblolly pine and shown to coincide in time and place with lignin formation and to oxidize monolignols to dehydrogenation products in vitro. These results suggest that laccase participates in lignin biosynthesis and therefore could be an important target for genetic engineering to modify wood properties or to improve the digestibility of forage corps.

• OSTI ID: 6420371
• Journal Information: Science (Washington, D.C.); (United States), Vol. 260:5108; ISSN 0036-8075
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
ENZYMES
PURIFICATION
LIGNIN
BIOSYNTHESIS
WOOD
GENETIC ENGINEERING
CELL WALL
PEROXIDASES
PINES
BIOTECHNOLOGY
CARBOHYDRATES
CELL CONSTITUENTS
CONIFERS
ORGANIC COMPOUNDS
OXIDOREDUCTASES
PINOPHYTA
PLANTS
POLYSACCHARIDES
PROTEINS
SACCHARIDES
SYNTHESIS
TREES
091000* - Biomass Fuels- Properties & Composition- (1990-)