Sugars are the important components in fruits. The study on fruit sugar metabolism has been an important research area, and some great advances have been made. This review was written for a brief summarization of sugar kinds and concentrations in developing fruits,the entrance and transfer of sugar into fruit,metabolic reactions involved in sugar metabolism,types of sugar metabolism,the relationship of some related enzyme's activity with sugar accumulation,and the regulation of sugar metabolism in fruits,which can be helpful for us to know the advance made in the study of fruit sugar metabolism and to have the related theoretical knowledge for regulating the metabolism for much better fruit quality.%糖分是果树果实的重要组成成分.有关果实中糖代谢的研究-直是果树研究的重点,并且取得了一定的进展.为更好地认识果树果实中糖代谢的研究以及提供调控糖代谢提高果实品质的理论依据,文章综述了果实发育过程中糖的种类及含量、糖进入果实的途径及运输,果实糖代谢的相关反应,果实糖代谢的方式、糖代谢相关酶的活性与糖积累的关系以及果实中糖代谢的调控等.
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