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《Journal of Fruit Science》 2005-05
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Advances in research on the effects of polygalacturonase and cellulase on fruit ripening

ZHANG Song, ZHANG Guang-lun, ZENG Xiu-li (College of Forestry and Horticulture, Sichuan Agricultural University, Ya'an, Sichuan 625014 China)  
In this article the factors affecting fruit softening, including the ultrastructure of cell wall, cellulase (CX) and polygalacturonase (PG) activity, and the research on molecular level are reviewed. The activities of CX and PG are direct correlated with fruit softening. PG probably affects the pigmentation during fruit maturation. The coding genes of Cx have already been distinguished from cDNAs. The activity of PG can be markedly inhibited by antisense RNA technique, which plays an important role in study of the effect of PG in fruit. By now, the studies on CX and PG are highlighted in climacteric-fruits, the non-climacteric fruits likely have a different mechanism. So, the study on ripening and softening of citrus which is one of the non-climacteric fruits could be the important field for next steps.
【Fund】: 四川省重点科技攻关项目(2001080302) 四川省农业资源区划重点项目(川农(区)[2003]04)
【CateGory Index】: S66
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