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Shoot-root carbon allocation, sugar signalling and their coupling with nitrogen uptake and assimilation


Wang, L and Ruan, YL, Shoot-root carbon allocation, sugar signalling and their coupling with nitrogen uptake and assimilation, Functional Plant Biology, 43, (2) pp. 105-113. ISSN 1445-4408 (2016) [Refereed Article]

Copyright Statement

Copyright 2016 CSIRO

DOI: doi:10.1071/FP15249


Roots and shoots are distantly located but functionally interdependent. The growth and development of these two organ systems compete for energy and nutrient resource, and yet, they keep a dynamic balance with each other for growth and development. The success of such a relationship depends on efficient root-shoot communication. Aside from the well-known signalling processes mediated by hormones such as auxin and cytokinin, sugars have recently been shown to act as a rapid signal to co-ordinate root and shoot development in response to endogenous and exogenous clues, in parallel to their function as carbon and energy resources for biomass production. New findings from studies on vascular fluids have provided molecular insights into the role of sugars in long-distance communications between shoot and root. In this review, we discussed phloem- and xylem- translocation of sugars and the impacts of sugar allocation and signalling on balancing root-shoot development. Also, we have taken the shoot-root carbon-nitrogen allocation as an example to illustrate the communication between the two organs through multi-layer root-shoot-root signalling circuits, comprising sugar, nitrogen, cytokinin, auxin and vascular small peptide signals.

Item Details

Item Type:Refereed Article
Keywords:carbon partitioning, phloem and xylem, root development, shoot growth, sugar signalling.
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Plant pathology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Industrial crops
Objective Field:Sugar
UTAS Author:Wang, L (Dr Lu Wang)
ID Code:114754
Year Published:2016
Web of Science® Times Cited:31
Deposited By:Plant Science
Deposited On:2017-02-26
Last Modified:2017-11-02

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