Abstract：
Hemicellulose, as a primary component of plant cell walls, constitutes approximately one third of cell wall dry matter and ranks as the second abundant renewable biomass resource in the nature after cellulose. Hemicellulose is tightly cross-linked with cellulose, lignin and other components in the plant cell wall, leading to lignocellulose recalcitrance. However, precise genetic modifications of plant cell walls can significantly improve the saccharification efficiency of lignocellulose while ensuring normal plant growth and development. We comprehensively review the research progress in the structural distribution of hemicellulose in plant cell walls, the cross-linking between hemicellulose and other components of the cell wall, and the impact of hemicellulose modification on the saccharification efficiency of the cell wall, proving a reference for the genetic improvement of energy crops.
摘要：
半纤维素,作为植物细胞壁的主要组成部分，约占细胞壁干物质的三分之一，是自然界中仅次于纤维素的第二丰富的可再生生物质资源。半纤维素与纤维素紧密交联，植物细胞壁中的木质素和其他成分，导致木质纤维素难以抗拒。然而,对植物细胞壁进行精确的遗传修饰可以显著提高木质纤维素的糖化效率,同时保证植物的正常生长发育。综述了植物细胞壁中半纤维素结构分布的研究进展,半纤维素和细胞壁其他成分之间的交联，以及半纤维素改性对细胞壁糖化效率的影响，为能源作物的遗传改良提供参考。
