Umezawa Toshiaki
Research Institute for Sustainable Humanosphere, Kyoto University.
Plant Biotechnol (Tokyo). 2024 Jun 25;41(2):89-101. doi: 10.5511/plantbiotechnology.24.0131a.
The sustainable production and utilization of lignocellulose biomass are indispensable for establishing sustainable societies. Trees and large-sized grasses are the major sources of lignocellulose biomass, while large-sized grasses greatly surpass trees in terms of lignocellulose biomass productivity. With an overall aim to improve lignocellulose usability, it is important to increase the lignin content and simplify lignin structures in biomass plants via lignin metabolic engineering. Rice () is not only a representative and important grass crop, but also is a model for large-sized grasses in biotechnology. This review outlines progress in lignin metabolic engineering in grasses, mainly rice, including characterization of the lignocellulose properties, the augmentation of lignin content and the simplification of lignin structures. These findings have broad applicability for the metabolic engineering of lignin in large-sized grass biomass plants.
木质纤维素生物质的可持续生产和利用对于建立可持续社会至关重要。树木和大型草本植物是木质纤维素生物质的主要来源，而大型草本植物在木质纤维素生物质生产力方面大大超过树木。为了提高木质纤维素的可用性，通过木质素代谢工程增加生物质植物中木质素含量并简化木质素结构很重要。水稻（）不仅是一种具有代表性的重要禾本科作物，也是生物技术中大型草本植物的模型。本综述概述了禾本科植物，主要是水稻，在木质素代谢工程方面的进展，包括木质纤维素特性的表征、木质素含量的增加和木质素结构的简化。这些发现对大型草本生物质植物中木质素的代谢工程具有广泛的适用性。
