中文摘要：

高等植物中一碳（C1）化合物的代谢主要包括甲醇代谢、甲醛代谢和甲酸代谢等,它们是高等植物一碳单位代谢的重要组成部分.由于C1化合物的代谢机制复杂、代谢规模非常小、参与代谢反应的酶和中间产物的含量低且不稳定等特点,相关研究报道很有限.现代生化和分子遗传学方法的综合使用使得人们对参与植物中C1化合物代谢的酶和基因有了一定程度的了解,该文主要综述了近年来有关高等植物中内源和外源C1化合物甲醇、甲醛和甲酸的来源和代谢途径方面的研究进展,并提出了该研究领域目前存在的问题和今后的研究方向.

英文摘要：

The metabolism of one-carbon compounds （C1 compounds） in higher plants mainly includes methanol metabolism, formaldehyde metabolism and formic acid metabolism, which is an important part in C1 unit metabolisms. However, because of their complex metabolic mechanisms, the very small-scale metabolism,and their enzymes and intermediates tending to be labile and low in abundance,the studies on C1 compounds metabolism in plants are very poor. Fortunately, the integration of molecular and genetic approaches with biochemical ones allowed certain understanding of enzymes and genes involved in C1 compound metabolisms in higher plants. This paper reviewed the recent research progress on the endogenous and exogenous C1 compound metabolic pathways in higher plants,as well as the various enzymes and metabolic intermediates involved in these metabolic pathways.