蔗糖代谢相关酶对果实糖积累影响的研究进展  

Research Progress of the Influence of Sucrose-metabolizing Enzymes on the Sugar Accumulation in Fruit

作　　者：闫梅玲[1] 代红军[1,2] 单守明[1] 王振平[1] 范永[1] 周明[1] 

机构地区：[1]宁夏大学葡萄与葡萄酒教育部工程研究中心,宁夏银川750021 [2]宁夏大学农学院,宁夏银川750021

出　　处：《安徽农业科学》2009年第29期14021-14023,14027,共4页Journal of Anhui Agricultural Sciences

基　　金：宁夏自然基金(NZ0802);国家自然基金(30760149)

摘　　要：[目的]报道蔗糖代谢相关酶对果实糖积累影响的研究进展情况。[方法]通过文献调研方式综述了国内外学者在蔗糖代谢转化酶、合成酶和磷酸合成酶的酶学特性及其对果实糖积累的影响作用,并对今后的研究作进一步设想。[结果]蔗糖转化酶与植物体内形成蔗糖浓度相关,液胞中的转化酶可以调节蔗糖和己糖的贮存,在成熟组织中,中性转化酶对蔗糖水解更为重要;蔗糖合成酶通过影响果实的库强来影响果实的糖积累,汁胞中合成酶在某些果实汁胞糖代谢中起重要作用;许多果实成熟过程中蔗糖积累与蔗糖磷酸合成酶活性的升高密切相关,蔗糖磷酸合成酶参与控制蔗糖长途运输与库组织蔗糖代谢。[结论]蔗糖代谢相关酶在高等植物蔗糖代谢中起着关键的作用。[ Objective ] The purpose was to report the research progress state of the effect of sucrose-metabolizing enzymes on fruit sugar accumulation. [ Method] The enzymatic characteristics of sucrose-metabolizing invertase, synthase and phosphate synthase and their intluence action on fruit sugar accumulation were summed up by scholars both at home and abroad through document survey modes, and further assumption of future study was made. [ Result] The sucrose invertase was related with sucrose concn, fanned in plant, the invertase in vacuole could regulate the storage of sucrose and hexose, and the neutral invertase was more important for sucrose hydrolysis in mature tissue. The sucrose synthase affected fruit sugar accumulation through eftecting sink strength of fruit, and the synthase in juice sac played an important role in glucose metabolism uf juice sac of sonic fruits. The sugar accumulation had close correlation with the rising up of activity of sucrose phosphate synthase during ripening of many fruits, and sucrose phosphate synthase joined in controlling of sucrose long-distance transport and sucrose metabolism of sink organization. [ Conclusion] The sueruse-metabolizing enzymes played a key role in sucrose metabolism of higher plants.

关 键 词：糖代谢 关键酶 果实 糖积累 

分 类 号：S312[农业科学—作物栽培与耕作技术]