Agronomy and Horticulture, Department of

 

Document Type

Article

Date of this Version

2018

Citation

New Phytologist (2018) 218: 594–603

Comments

Copyright 2018 The Authors

This is an open access article

doi: 10.1111/nph.15021

Abstract

Crop yield is critical for human nutrition, yet the underlying machinery that ultimately determines yield potential is still not understood. Crop productivity under ideal conditions is determined by the efficiency with which plants intercept light, convert it into chemical energy, translocate photosynthates and convert these to storage products in harvestable organs (Zhu et al., 2010). In many crops, sucrose is the primary form for translocation inside the conduit (i.e. the phloem). A combination of SWEETmediated efflux from phloem parenchyma and subsequent secondary active sucrose import by SUT sucrose/H+ symporters is thought to create the driving force for pressure gradient-driven phloem transport and retrieval of sucrose leaking along the translocation path (Chen et al., 2015a).

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