Evidence map›Paper›PMID 31182845›Full record

ArticleNature plants2019

Sphingolipid biosynthesis modulates plasmodesmal ultrastructure and phloem unloading.

Dawei Yan, Shri Ram Yadav, Andrea Paterlini, William J Nicolas, Jules D Petit, Lysiane Brocard, Ilya Belevich, Magali S Grison, Anne Vaten, Leila Karami and 9 more

Erratum issuedAbstract read
In one paragraph

Article in Nature plants, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

45 citing papers in PubMed.

  1. The influence of electrical charge on plasmodesma conductivity.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Review
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  4. Article
  5. Review
  6. Review
  7. Article
  8. Pectin Metabolism Influences Phloem Architecture and Flowering Time in Arabidopsis Thaliana.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

19 authors.

Dawei Yan *The Sainsbury Laboratory, University of Cambridge, Cambridge, UK.ORCID http://orcid.org/0000-0001-8256-0279
Shri Ram Yadav *Helsinki Institute of Life Science/Institute of Biotechnology, University of Helsinki, Helsinki, Finland.
Andrea PaterliniThe Sainsbury Laboratory, University of Cambridge, Cambridge, UK.ORCID http://orcid.org/0000-0002-1777-3160
William J NicolasLaboratoire de Biogenèse Membranaire, UMR 5200, CNRS, Université de Bordeaux, Villenave d'Ornon, France.
Jules D PetitLaboratoire de Biogenèse Membranaire, UMR 5200, CNRS, Université de Bordeaux, Villenave d'Ornon, France.
Lysiane BrocardBordeaux Imaging Centre, Plant Imaging Platform, UMS 3420, INRA-CNRS-INSERM, University of Bordeaux, Villenave-d'Ornon, France.
Ilya BelevichHelsinki Institute of Life Science/Institute of Biotechnology, University of Helsinki, Helsinki, Finland.ORCID http://orcid.org/0000-0003-2190-4909
Magali S GrisonLaboratoire de Biogenèse Membranaire, UMR 5200, CNRS, Université de Bordeaux, Villenave d'Ornon, France.
Anne VatenHelsinki Institute of Life Science/Institute of Biotechnology, University of Helsinki, Helsinki, Finland.
Leila KaramiHelsinki Institute of Life Science/Institute of Biotechnology, University of Helsinki, Helsinki, Finland.
Sedeer El-ShowkHelsinki Institute of Life Science/Institute of Biotechnology, University of Helsinki, Helsinki, Finland.
Jung-Youn LeeDepartment of Plant and Soil Sciences, Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA.
Gosia M MurawskaBiosciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
Jenny MortimerBiosciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.ORCID http://orcid.org/0000-0001-6624-636X
Michael KnoblauchSchool of Biological Sciences, Washington State University, Pullman, WA, USA.
Eija JokitaloHelsinki Institute of Life Science/Institute of Biotechnology, University of Helsinki, Helsinki, Finland.
Jennifer E MarkhamDepartment of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA.
Emmanuelle M BayerLaboratoire de Biogenèse Membranaire, UMR 5200, CNRS, Université de Bordeaux, Villenave d'Ornon, France. emmanuelle.bayer@u-bordeaux.fr.ORCID http://orcid.org/0000-0001-8642-5293
Ykä HelariuttaThe Sainsbury Laboratory, University of Cambridge, Cambridge, UK. yrjo.helariutta@slcu.cam.ac.uk.ORCID http://orcid.org/0000-0002-7287-8459

Funding

Biotechnology and Biological Sciences Research Council BB/N013158/1European Research Council 323052
6 · The paper itself

Abstract

During phloem unloading, multiple cell-to-cell transport events move organic substances to the root meristem. Although the primary unloading event from the sieve elements to the phloem pole pericycle has been characterized to some extent, little is known about post-sieve element unloading. Here, we report a novel gene, PHLOEM UNLOADING MODULATOR (PLM), in the absence of which plasmodesmata-mediated symplastic transport through the phloem pole pericycle-endodermis interface is specifically enhanced. Increased unloading is attributable to a defect in the formation of the endoplasmic reticulum-plasma membrane tethers during plasmodesmal morphogenesis, resulting in the majority of pores lacking a visible cytoplasmic sleeve. PLM encodes a putative enzyme required for the biosynthesis of sphingolipids with very-long-chain fatty acid. Taken together, our results indicate that post-sieve element unloading involves sphingolipid metabolism, which affects plasmodesmal ultrastructure. They also raise the question of how and why plasmodesmata with no cytoplasmic sleeve facilitate molecular trafficking.

Indexed as

ArabidopsisArabidopsis ProteinsGenes, PlantGlucansGreen Fluorescent ProteinsMembrane ProteinsMutationPhloemPlant RootsPlasmodesmataSphingolipidsTransferases (Other Substituted Phosphate Groups)Arabidopsis ProteinsAt1g43580 protein, ArabidopsiscalloseGlucansGreen Fluorescent ProteinsMembrane Proteinsphosphatidylcholine-ceramide phosphocholine transferaseSphingolipidsTransferases (Other Substituted Phosphate Groups)

Identifiers

PMID31182845
PMCPMC6565433

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.