Purdue University, Botany & Plant Pathology, 915 West State Street, West Lafayette, IN 47907-2054, United States.
Curr Opin Biotechnol. 2012 Jun;23(3):330-7. doi: 10.1016/j.copbio.2011.12.003. Epub 2011 Dec 28.
Lignocellulosic biomass feedstocks for biofuels are primarily the thickened secondary cells of vascular plants. Recent advances have been made in our basic understanding of how cellulose and the non-cellulosic polysaccharides of the plant cell wall are synthesized, assembled, and integrated with the synthesis of lignin. New complexities have been elucidated in the ways cellulose microfibrils are deposited at the plasma membrane surface and integrated with non-cellulosic polysaccharides are assembled and lignified into functional form. Current strategies focus on the transcriptional events that specify vascularization and fiber formation and how the composition of lignin is modified in expression variants in the natural population. This knowledge base will yield new ideas for how to enhance lignocellulosic composition and cell wall architecture in biomass tailored for its end use.
木质纤维素生物质原料主要是维管植物加厚的次生细胞。最近，人们在基本理解纤维素和植物细胞壁中非纤维素多糖的合成、组装以及与木质素合成的整合方面取得了进展。在纤维素微纤维沉积在质膜表面的方式以及与非纤维素多糖的组装和木质化形成功能形式方面，新的复杂性已经得到阐明。目前的策略集中在指定血管形成和纤维形成的转录事件上，以及如何在自然种群的表达变体中修饰木质素的组成。这个知识库将为如何增强生物质的木质纤维素组成和细胞壁结构提供新的思路，以适应其最终用途。
