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ACTA HORTICULTURAE SINICA ›› 2012, Vol. 39 ›› Issue (3): 409-416.

• Fruit Trees •     Next Articles

Influence of Main-branch-girdling on Berry Coloring and Expression of Some Related Genes in‘Fujiminori’Grapevine 

GUO Lei1,WANG Tao2,YUE Lin-xu3,FANG Jing-gui1,*,CHEN Ji-lin4,SONG Chang-nian1,and LENG Xiang-peng1   

  1. 1College of Horticulture,Nanjing Agricultural University,Nanjing 210095,China;2Wenling Bureau of Agriculture and Forestry,Wenling,Zhejiang 317500,China;3Institute of Light Industry Agro-raw Materials of Shandong,Gaomi,Shandong 261500,China;4Binghai Grape Cooperation of Wenling,Wenling,Zhejiang 317500,China
  • Received:2011-12-20 Revised:2012-02-21 Online:2012-03-25 Published:2012-03-25
  • Contact: FANG Jing-gui E-mail:fanggg@ njau. edu. cn

Abstract: Trunks of grapevine‘Fujiminori’were girdled for investigation of the influence of girdling on berry coloration and the expression of three important genes which is related to anthocyanin synthesis. The results showed that trunk-girdling could improve the mass fraction of soluble solids in flesh,obviously improve berry coloration,increase the contents of anthocyanin. Girdling treatment could decrease L* and b* values much,and increase the a* and CIRG value. In addition,trunk-girdling obviously regulated the expression of UFGTMYBA1 and MYBA2. The results demonstrated that the expression of MYBA1 and MYBA2 was induced after the first 2 weeks(63 days after flowering)of girdling and the relative expression reached the highest value. Interestingly,the expression of UFGT and the anthocyanin accumulation of fruit peel in a highly similar pattern,and the girdling treatment causes the UFGT gene expression a week in advance.

Key words: grapevine, girdling, quality, coloration