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Science 30 April 1993:
Vol. 260. no. 5108, pp. 672 - 674
DOI: 10.1126/science.260.5108.672
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Articles
A Laccase Associated with Lignification in Loblolly Pine Xylem
Wuli Bao 1,
David M. O'Malley 1,
Ross Whetten 1, and
Ronald R. Sederoff 1
1 Department of Forestry, P.O. Box 8008, North Carolina State University, Raleigh, NC 27695
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.
Submitted on October 2, 1992
Accepted on February 16, 1993
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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- A comparison of proteins from the developing xylem of compression and non-compression wood of branches of Sitka spruce (Picea sitchensis) reveals a differentially expressed laccase.
- G. J. McDougall (2000)
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- Characterization, Molecular Cloning, and Differential Expression Analysis of Laccase Genes from the Edible Mushroom Lentinula edodes.
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- Gene discovery in the wood-forming tissues of poplar: Analysis of 5,692 expressed sequence tags.
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- Analysis of xylem formation in pine by cDNA sequencing.
- I. Allona, M. Quinn, E. Shoop, K. Swope, S. St. Cyr, J. Carlis, J. Riedl, E. Retzel, M. M. Campbell, R. Sederoff, et al. (1998)
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- Molecular Analysis of a Laccase Gene from the White Rot Fungus Pycnoporus cinnabarinus.
- C. Eggert, P. R. LaFayette, U. Temp, K.-E. L. Eriksson, and J. F. D. Dean (1998)
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- The FET3 Gene Product Required for High Affinity Iron Transport in Yeast Is a Cell Surface Ferroxidase.
- D. M. De Silva, C. C. Askwith, D. Eide, and J. Kaplan (1995)
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