ArticleeLife2017
Phloem unloading in Arabidopsis roots is convective and regulated by the phloem-pole pericycle.
Article in eLife, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers.
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Who cites it
89 citing papers in PubMed.
- Decoding the landscape of cell-type-specific co-expressed transcription factors in soybean.Nature plants · 2026Article
- Evaluating Causal Claims in Plant Developmental Metabolism: A When-Where-How Framework.Plants (Basel, Switzerland) · 2026Review
- Calcium and Nitrogen Availability Controls Root Exudation in Hydroponically Cultured Barley.Plant, cell & environment · 2026Article
- The (un)likelihood of clock-driven lateral root priming; a modeling exploration.The Plant cell · 2026Article
- HHO5 orchestrates dose-dependent feedback regulation of organic versus inorganic nitrogen signaling in Arabidopsis.The Plant cell · 2026Article
- Single-nucleus transcriptomics resolves multiple fate dynamics between inflorescence meristem and primary stem.Science advances · 2026Article
- Plasmodesmal closure elicits stress responses.EMBO reports · 2026Article
- Grafting reveals organ-autonomous and feedback roles of root phloem development in source-sink dynamics.Journal of experimental botany · 2026Article
- The influence of electrical charge on plasmodesma conductivity.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Molecular mechanisms and evolutionary adaptations of transporters for photosynthates and specialized metabolites in plants.Plant cell reports · 2026Review
- Characterization of Viruses in Phloem by Correlative X-Ray Microtomography (μCT)-Volume Electron Microscopy (vEM) Imaging.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Microscopic probing into plasmodesmata (PD) and PD-derived intercellular gateways (PdIGs): Beyond morphology.Protoplasma · 2026Review
- A Dual-Reporter System for the Analysis of Phloem Structural and Signaling Responses In Vivo.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Measuring Phloem Transport Velocity on a Tissue-Level Using a Phloem-Mobile Dye.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Detecting Rapid Changes in Carbon Transport and Partitioning with Carbon-11 (Methods in molecular biology (Clifton, N.J.) · 2026Article
- The Evolution of Large Organism Size: Disparate Physiologies Share a Foundation at the Smallest Physical Scales.Life (Basel, Switzerland) · 2025Review
- A balance of metabolism and diffusion articulates a gibberellin hormone gradient in theProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Iron deficiency changes regulatory mechanisms governing sieve element cell differentiation.Nature communications · 2025Article
- Gibberellin transport affects lateral root growth through HY5 in response to far-red light.The Plant cell · 2025Article
- Distinct and redundant roles of the Arabidopsis OCTOPUS gene family in plant growth beyond phloem development.Journal of experimental botany · 2025Article
29 more citing papers are in PubMed but not listed here.
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Authors and funding
17 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In plants, a complex mixture of solutes and macromolecules is transported by the phloem. Here, we examined how solutes and macromolecules are separated when they exit the phloem during the unloading process. We used a combination of approaches (non-invasive imaging, 3D-electron microscopy, and mathematical modelling) to show that phloem unloading of solutes in Arabidopsis roots occurs through plasmodesmata by a combination of mass flow and diffusion (convective phloem unloading). During unloading, solutes and proteins are diverted into the phloem-pole pericycle, a tissue connected to the protophloem by a unique class of 'funnel plasmodesmata'. While solutes are unloaded without restriction, large proteins are released through funnel plasmodesmata in discrete pulses, a phenomenon we refer to as 'batch unloading'. Unlike solutes, these proteins remain restricted to the phloem-pole pericycle. Our data demonstrate a major role for the phloem-pole pericycle in regulating phloem unloading in roots.
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