基因工程对林木生长表型与细胞壁组分及构造的影响研究

The Effects of Genetic Engineering on Growth Phenotypes, Cell Wall Components and Structures of Forest Trees

通过基因工程技术培养出木质素含量低、纤维素含量高和糖转化效率高以及优质的木材,对于将其定向应用于制浆造纸、生物炼制、木质建筑及装饰材料方面具有重要的研究意义。文章详细阐明了木质素和纤维素基因调控技术对转基因林木生长表型、细胞壁化学组分含量及其微区分布、组织细胞形态及细胞壁超微构造影响的研究进展,并对转基因林木今后的重点发展方向进行了展望,以期为我国定向培育优质速生人工林提供理论依据。

Transgenic trees with low lignin content,high cellulose content,high conversion efficiency of sugar,and excellent wood properties were achieved by genetic engineering,which have important research value for the directional application in pulping and paper making,biomass energy refining and wood building and decorative materials.In this paper,the effects of lignin and cellulose gene regulation on growth phenotype,cell wall chemical component and distribution,tissue cells morphology and ultrastructure of cell wall in transgenic trees were reviewed in detail.And the prospects for future research and development direction of transgenic forest are put forward.The purpose of this article is to provide theoretical guidance for the directional cultivation of high quality and fast growing plantations in China.