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Research progress on sugar transportation and accumulation in fruit

Zheng Ziyan,Zheng Guoqi,Zhu Qiang,Wang Jun(School of Life Science,Ningxia University,Yinchuan 750021,China)  
Abstract: The form research indicated that the key step to controlling sugar accumulation is located in developmental fruit instead of the ability to transport photosynthate from original leaves or the transport efficiency of photosynthate in phloem pathway.The sugar accumulation in fruit depends on the elements of the transport efficiency of post-phloem in store cells,the component and vigour of sugar metabolism related enzyme,and the ability of sugar transportation.The paper summarized the research progress of the cellular pathway of sugar transport to fruit,the content and vitality of enzyme related to sucrose metabolism,sugar transport,the changes of hormones and their regulation mechanism so as to further clarify the sugar accumulation mechanism which would provide reference to improve fruit quality.
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