木质素合成研究进展

木质素是植物体内一类重要的大分子有机物，具有支持、保护和运输等生物学功能。然而，木质素的存在对植物资源的利用有一些不利影响，主要体现在导致造纸污染严重及影响牲畜对饲草的消化和吸收等。通过生物工程手段调控木质素的合成具有重要的环境保护价值和经济价值，已经成为国际上生命科学研究的热点之一。近年来，这一领域发展十分迅速。本文介绍了木质素生物合成途径，重点综述了调控木质素合成的手段及限速酶研究方面的最新进展，并提出存在的问题及展望。

Advance in the Synthesis of Lignin

Lignin is a kind of important macromolecular organic material and only inferior to cellulose inside plant with important biology functions like sustaining, protecting, transporting and so on. The ability to synthesize lignin has been essential in the evolutionary adaptation of plants from an aquatic environment to land. Whereas the lignin has negative effect on utilizing the plant resource in some areas, such as resulting in severe environmental pollution in the paper making and reducing the digestibility of silage grass. Regulating of lignin content through gene engineering plays important roles in environment protection and economy. The progress of recent research on the lignin biosynthesis is introduced. The hot area of the new progress of regulation of lignin content was presented. Meanwhile, some problems needed to research are suggested and the possible developments from now on are forecasted.