# The study of plasmodesmal biology using proximity labeling technologies

**Authors:** Zhongpeng Li, Kyaw Aung

PMC · DOI: 10.1093/jxb/eraf239 · 2025-05-30

## TL;DR

This paper reviews how proximity labeling technologies can help study plasmodesmata, which are important for plant cell communication.

## Contribution

The paper highlights recent advances in using proximity labeling assays to study plasmodesmata proteomes and their potential for future research.

## Key findings

- Proximity labeling assays have improved the mapping of plant protein interactomes.
- Integration of PL technologies with existing methods can provide deeper insights into plasmodesmata biology.

## Abstract

Plasmodesmata (PD) are essential cellular structures that facilitate intercellular communication in plants, enabling the transport of nutrients and signaling molecules. Over the past decades, significant strides have been made in unraveling the formation, function, and regulation of PD. Identification and functional characterization of PD-associated proteins have greatly advanced our understanding of PD. This review discusses past efforts in uncovering PD proteomes and highlights recent breakthroughs in applying proximity labeling (PL) assays to map plant protein interactomes. Special attention is given to using PL assays in studying PD biology, emphasizing their potential to drive future advancements and deepen our understanding of PD function and regulation. By integrating PL technologies with established methodologies, researchers can gain comprehensive insights into the dynamic composition and roles of PD.

Implementation of proximity labeling technologies will advance our understanding of plasmodesmata.

## Full-text entities

- **Genes:** RTNLB3 (Reticulan like protein B3) [NCBI Gene 842713] {aka F22C12.15, F22C12_15, Reticulan like protein B3}, NHL3 (NDR1/HIN1-like 3) [NCBI Gene 830520] {aka MHF15.16, MHF15_16, NDR1/HIN1-like 3}, RCI2A (Low temperature and salt responsive protein family) [NCBI Gene 819757] {aka F10A16.18, F10A16_18, RARE-COLD-INDUCIBLE 2A}, FT (PEBP (phosphatidylethanolamine-binding protein) family protein) [NCBI Gene 842859] {aka F5I14.3, F5I14_3, FLOWERING LOCUS T, REDUCED STEM BRANCHING 8, RSB8}, PDLP1 (plasmodesmata-located protein 1) [NCBI Gene 834421] {aka MRH10.9, MRH10_9, PDLP1A, PLASMODESMATA-LOCATED PROTEIN 1A, plasmodesmata-located protein 1}, CRK2 (cysteine-rich RLK (RECEPTOR-like protein kinase) 2) [NCBI Gene 843389] {aka ALTERED SEED GERMINATION 6, ASG6, F24J13.9, F24J13_9, cysteine-rich RLK (RECEPTOR-like protein kinase) 2}, LYM2 (lysm domain GPI-anchored protein 2 precursor) [NCBI Gene 816217] {aka CEBiP-like 1, CL-1, F6P23.25, F6P23_25, LYP1, LysM-containing receptor protein 1}, PDLP7 (plasmodesmata-located protein 7) [NCBI Gene 833744] {aka K12B20.12, K12B20_12, plasmodesmata-located protein 7}, SRF3 (STRUBBELIG-receptor family 3) [NCBI Gene 827941] {aka F4C21.35, F4C21_35, STRUBBELIG-receptor family 3}, PDLP6 (plasmodesmata-located protein 6) [NCBI Gene 814695] {aka T8O11.17, T8O11_17, plasmodesmata-located protein 6}, HWI1 (Receptor-like protein kinase-related family protein) [NCBI Gene 843406] {aka F5A18.13, F5A18_13, HOPW1-1-INDUCED GENE1, PDLP5, PLASMODESMATA-LOCATED PROTEIN 5}, UBQ10 (polyubiquitin 10) [NCBI Gene 825880] {aka C17L7.240, C17L7_240, UBI10, polyubiquitin 10, ubiquitin 10}, CALS1 (callose synthase 1) [NCBI Gene 837059] {aka ATGSL06, ATGSL6, F3F20.1, F3F20_1, GLUCAN SYNTHASE-LIKE 6, GSL06}, SUS6 (sucrose synthase 6) [NCBI Gene 843672] {aka ARABIDOPSIS THALIANA SUCROSE SYNTHASE 6, ATSUS6, T9L24.42, T9L24_42, sucrose synthase 6}
- **Diseases:** NON (OMIM:311050), PL (MESH:D014897), PIPs (MESH:C536778), MEMBRANE INTRINSIC PROTEINS (MESH:D015433), toxicity (MESH:D064420), microbial infection (MESH:D015163), DISEASE RESISTANCE (MESH:D060467)
- **Chemicals:** callose (MESH:C048306), H2O2 (MESH:D006861), chitin (MESH:D002686), PL (-), biotin (MESH:D001710), lipid (MESH:D008055), salt (MESH:D012492), Aniline blue (MESH:C017006)
- **Species:** Petunia (petunia, genus) [taxon 4101], Glycine max (soybean, species) [taxon 3847], Chlorophyta (green algae, phylum) [taxon 3041], Populus trichocarpa (black cottonwood, species) [taxon 3694], Solanum tuberosum (potatoes, species) [taxon 4113], Nicotiana benthamiana (species) [taxon 4100], Physcomitrium patens (species) [taxon 3218], Turnip mosaic virus (no rank) [taxon 12230], Solanum lycopersicum (tomato, species) [taxon 4081], Arabidopsis thaliana (mouse-ear cress, species) [taxon 3702], Oryza sativa (Asian cultivated rice, species) [taxon 4530]
- **Cell lines:** Col-0 — Homo sapiens (Human), Familial hypertrophic cardiomyopathy type 26, Induced pluripotent stem cell (CVCL_A6XE)

## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12835822/full.md

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Source: https://tomesphere.com/paper/PMC12835822