Abstract:

Lignin with important biological functions is the second abundant natural product, its content is only less than cellulose in plant. But the lignin must be extracted from the cellulose fraction in making paper pulp process leading energy-requiring, cost-increasing and pollution. Also, the lignin has negative effect on the digestibility of silage grass. So it is of considerable interest to reduce the lignin content in resource plants. The paper reviews the progress of lignin biosynthesis and regulation. The feasibility of reducing the lignin content and altering its composition for improving paper pulp production and decreasing pollution are discussed.

木质素生物合成途径及调控的研究进展
魏建华 宋艳茹*

（中国科学院植物研究所，北京100093）
关键词： 木质素；生物合成途径；生物合成调控；制浆造纸