NDLI: Sucrose synthase FaSS1 plays an important role in the regulation of strawberry fruit ripening

Content Provider	Springer Nature Link
Author	Zhao, Cheng Hua, Li Na Liu, Xiao Feng Li, Yu Zhong Shen, Yuan Yue Guo, Jia Xuan
Copyright Year	2016
Abstract	Sugar content and composition are critical to fruit development. Sucrose, a photosynthate unloaded to the fruit, is metabolized by sucrose synthase, which might play a dominant role in sucrose accumulation during strawberry fruit ripening. However, substantial evidence regarding the molecular mechanism underlying sucrose accumulation in strawberry fruit development is lacking. Here, a strawberry sucrose synthase gene, FaSS1, was cloned and identified. Its 2421-bp cDNA includes an intact open reading frame and encodes an 806 amino acid protein, in which sucrose synthase-related conserved domains were predicted by a homology analysis. Using tobacco rattle virus-induced gene silencing, the downregulation of FaSS1 transcripts significantly delayed fruit ripening, as evidenced by the changes of firmness, and soluble sugar and anthocyanin contents, as well as the transcripts of several ripening-related genes, including PE1, PL1, XYL2, CHS, CHI, and DFR. Furthermore, the mRNA expression level of FaSS1 was inhibited by abscisic acid or sucrose, but not by glucose after fruit disc incubation in vitro. In conclusion, FaSS1 plays an important role in the regulation of strawberry fruit ripening, and its expression could be inhibited by abscisic acid and sucrose.
Starting Page	175
Ending Page	181
Page Count	7
File Format	PDF
ISSN	01676903
Journal	Plant Growth Regulation
Volume Number	81
Issue Number	1
e-ISSN	15735087
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-06-30
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sucrose synthase gene FaSS1 Sucrose Abscisic acid Strawberry fruit ripening Virus-induced gene silencing Plant Sciences Plant Anatomy/Development Plant Physiology Agriculture
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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