The sucrose–trehalose 6-phosphate nexus: what’s next for plant vigour and productivity?
Year: 2025
Type: article
Abstract: The sucrose-trehalose 6-phosphate nexus model states that trehalose 6-phosphate (Tre6P) is both a signal for sucrose (Suc) status and a negative feedback regulator that helps maintain Suc levels within an optimal range. The link between Suc and Tre6P is best established in Arabidopsis and other plants that transport primarily Suc, but angiosperms have evolved multiple phloem loading strategies and use alternative sugars. Annunziata et al. (2025) find conservation of the Suc-Tre6P nexus across angiosperms despite different sugars being transported, different mechanisms for phloem loading, and different photoassimilate storage strategies through day/night (diel) cycles. Tre6P as a universal signalling metabolite has implications for increasing crop vigour and productivity.
Source: Journal of Experimental Botany
DOI: 10.1093/jxb/eraf484
Author: Brian Ayre
Institution: University of North Texas
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
Estimated APC paid: $4,341
Funder: National Science Foundation
Awards: Unraveling the Link between Carbohydrate Transport and Phosphate Use: Can We Improve Carbon Partitioning and Reduce Nutrient Use?, The Efficiency of Long-Distance Translocation: Retention Properties of Sugars in the Transport Phloem, Collaborative Research: Integrating two different roles of the proton-pumping pyrophosphatase in the regulation and efficiency of carbon utilization and transport in planta, Sucrose / H+ symporters in plants for targeted biomass partitioning
OpenAlex ID: W7123343364