Effects of ABA on the Expression of Key Genes in Postharvest Fruit of ‘Kyoho’Grapevine

doi:10.16420/j.issn.0513-353x.2017-0603

ACTA HORTICULTURAE SINICA ›› 2018, Vol. 45 ›› Issue (6): 1067-1080.doi: 10.16420/j.issn.0513-353x.2017-0603

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Effects of ABA on the Expression of Key Genes in Postharvest Fruit of ‘Kyoho’Grapevine

ZHANG Peian1，WANG Zhuangwei2，CAI Binhua1，WEN Xicheng1，TIAN Liang1，WANG Chen1，JIA Haifeng1,*，and FANG Jinggui1

1College of Horticulture，Nanjing Agricultural University，Nanjing 210095，China；2China Institute of Pomology，Jiangsu Academy of Agricultural Sciences，Nanjing 210014，China

Online:2018-06-25 Published:2018-06-25

Abstract

Abstract: In order to reveal the senescence mechanism during fruit development，the effects of ABA，NDGA（Nordihydroguaiaretic acid，an inhibitor of NCED），fluridone，ethephon，and AS6（3′- hexylsulfanyl-ABA，antagonists of PYL-PP2C receptor）on fruit firmness，anthocyanin biosynthesis，aroma volatiles，and their related genes were investigated in grape（Vitis vinifera L. × V. labrusca L.‘Kyoho’）berries after postharvest. The results showed that ABA promoted anthocyanin，aroma volatile，and total soluble solid productions，but reduced fruit firmness and tartaric acid. Whereas NDGA，fluridone and AS6 showed an opposite effect. The expressions of VvMYBA2，VvUFGT or VvEGS1 coincided with anthocyanin content or aroma volatiles production，except that for the VvLAR1. Endogenous ABA content and the expressions of VvOPR3，VvACO1，and VvSUT11 were increased by ABA，but decreased by NDGA and fluridone. AS6 increased endogenous ABA content. The expressions of VvNCED1，VvCYP707A1 and VvPYL8 coincided with endogenous ABA content. In contrast，VvPYL8 expressions was decreased by AS6. The change of VvPP2C49 expression was contrary to ABA content，and AS6 increased VvPP2C49 expression. These results suggest that endogenous ABA content influence the anthocyanin formation，aroma volatile production，fruit softening，and sugar metabolism.

Key words: grape, fruit, postharvest, ABA, key gene in postharvest

CLC Number:

S 663.1

ZHANG Peian1，WANG Zhuangwei2，CAI Binhua1，WEN Xicheng1，TIAN Liang1，WANG Chen1，JIA Haifeng1,*，and FANG Jinggui1. Effects of ABA on the Expression of Key Genes in Postharvest Fruit of ‘Kyoho’Grapevine[J]. ACTA HORTICULTURAE SINICA, 2018, 45(6): 1067-1080.

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Effects of ABA on the Expression of Key Genes in Postharvest Fruit of ‘Kyoho’Grapevine

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