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Towards the mechanism of cellulose synthesis [Review]

机译:纤维素合成机理的研究[综述]

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摘要

Recent research has provided insights into how plants make cellulose-the major structural material of their cell walls and the basis of the cotton and wood fibre industries. Arabidopsis thaliana mutants impaired in cellulose production are defective in genes encoding membrane-bound glycosyltransferases, an endo-1,4-beta-glucanase and several enzymes involved in the N-glycosylation and quality-control pathways of the endoplasmic reticulum. The glycosyltransferases form the rosette terminal complexes seen in plasma membranes making cellulose. Synthesis might start by making lipoglucans, which, in turn, might form the substrate for the endo-1,4-beta-glucanase, before being elongated to form the long, crystalline microfibrils that assemble in the cell wall.
机译:最近的研究提供了关于植物如何制造纤维素的重要见解,纤维素是细胞壁的主要结构材料,也是棉和木纤维工业的基础。在纤维素生产中受损的拟南芥突变体在编码膜结合糖基转移酶,1,4-β-葡聚糖内切酶和涉及内质网N-糖基化和质量控制途径的几种酶的基因中存在缺陷。糖基转移酶形成制造纤维素的质膜中可见的玫瑰花结末端复合物。合成可能首先通过制备脂葡聚糖开始,然后再将其形成1,4-β-葡聚糖内切酶的底物,然后再延伸以形成在细胞壁中组装的长结晶微纤维。

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