Science. 1993 Apr 30;260(5108):672-4. doi: 10.1126/science.260.5108.672.
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 crops.
过氧化物酶被认为是唯一能将木质素前体氧化为植物木质素形成的酶。从火炬松分化木质部细胞壁中纯化了一种漆酶，并证明其与木质素形成在时间和空间上一致，并在体外将木质素单体氧化为脱氢产物。这些结果表明漆酶参与木质素生物合成，因此可能是遗传工程改良木材性质或提高饲料作物消化率的重要目标。
