These authors contributed equally to this work.
Sucrose functions as a signal involved in the regulation of strawberry fruit development and ripening
Article first published online: 21 FEB 2013
© 2013 The Authors. New Phytologist © 2013 New Phytologist Trust
Volume 198, Issue 2, pages 453–465, April 2013
How to Cite
Jia, H., Wang, Y., Sun, M., Li, B., Han, Y., Zhao, Y., Li, X., Ding, N., Li, C., Ji, W. and Jia, W. (2013), Sucrose functions as a signal involved in the regulation of strawberry fruit development and ripening. New Phytologist, 198: 453–465. doi: 10.1111/nph.12176
- Issue published online: 20 MAR 2013
- Article first published online: 21 FEB 2013
- Manuscript Accepted: 7 JAN 2013
- Manuscript Received: 21 OCT 2012
- National High-Tech R&D Program of China. Grant Number: 2011AA100204
- National Natural Science Foundation. Grant Numbers: 30971978, 31171921, 31101527
- abscisic acid (ABA);
- fruit development and ripening;
- strawberry (Fragaria × ananassa);
- sucrose transporter
- Fleshy fruits are classically divided into climacteric and nonclimacteric types. It has long been thought that the ripening of climacteric and nonclimacteric fruits is regulated by ethylene and abscisic acid (ABA), respectively. Here, we report that sucrose functions as a signal in the ripening of strawberry (Fragaria × ananassa), a nonclimacteric fruit.
- Pharmacological experiments, as well as gain- and loss-of-function studies, were performed to demonstrate the critical role of sucrose in the regulation of fruit ripening.
- Fruit growth and development were closely correlated with a change in sucrose content. Exogenous sucrose and its nonmetabolizable analog, turanose, induced ABA accumulation in fruit and accelerated dramatically fruit ripening. A set of sucrose transporters, FaSUT1–7, was identified and characterized, among which FaSUT1 was found to be a major component responsible for sucrose accumulation during fruit development. RNA interference-induced silencing of FaSUT1 led to a decrease in both sucrose and ABA content, and arrested fruit ripening. By contrast, overexpression of FaSUT1 led to an increase in both sucrose and ABA content, and accelerated fruit ripening.
- In conclusion, this study demonstrates that sucrose is an important signal in the regulation of strawberry fruit ripening.