ArticleCurrent biology : CB2015
Synaptotagmin SYTA forms ER-plasma membrane junctions that are recruited to plasmodesmata for plant virus movement.
Article in Current biology : CB, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers, 1 of them a synthesis that pooled it.
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Who cites it
93 citing papers in PubMed, 1 synthesis or guideline pooled it, 170 citations in OpenAlex.
- A comparative meta-proteomic pipeline for the identification of plasmodesmata proteins and regulatory conditions in diverse plant species.BMC biology · 2022Pooled it
- The diverse roles of host membranes in plant-microbe interactions.PLoS pathogens · 2026Article
- Alterations in the proteomic profiles of Arabidopsis roots triggered by sodium chloride stress are exacerbated by impaired function of SYNAPTOTAGMIN 1.BMC plant biology · 2025Article
- Gatekeepers and Gatecrashers of the Symplasm: Cross-Kingdom Effector Manipulation of Plasmodesmata in Plants.Plants (Basel, Switzerland) · 2025Review
- Concerted transport and phosphorylation of diacylglycerol at ER-PM contact sites regulate phospholipid dynamics during stress.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Viral tropism in plants, reproductive tissues, and seeds.Archives of microbiology · 2025Review
- A Genome-Wide Association Screen for Genes Affecting Leaf Trichome Development and Epidermal Metal Accumulation in Arabidopsis.Plant, cell & environment · 2025Article
- RH3 enhances antiviral defense by facilitating small RNA loading into Argonaute 2 at endoplasmic reticulum-chloroplast membrane contact sites.Nature communications · 2025Article
- Tobacco Mosaic Virus Movement: From Capsid Disassembly to Transport Through Plasmodesmata.Viruses · 2025Review
- Cellular Partners of Tobamoviral Movement Proteins.International journal of molecular sciences · 2025Review
- The roles of movement and coat proteins in the transport of tobamoviruses between plant cells.Frontiers in plant science · 2025Review
- Functional and Structural Analysis Reveals Distinct Biological Roles of Plant Synaptotagmins in Response to Environmental Stress.Plant, cell & environment · 2025Article
- XopM, An FFAT Motif-Containing Type III Effector Protein From Xanthomonas, Suppresses MTI Responses at the Plant Plasma Membrane.Molecular plant pathology · 2024Article
- Advances in understanding the graft healing mechanism: a review of factors and regulatory pathways.Horticulture research · 2024Article
- Integrated transcriptome and metabolome reveal that SlSYTA modulates ROS responses driving resistance defense inHorticulture research · 2024Article
- ER-associated VAP27-1 and VAP27-3 proteins functionally link the lipid-binding ORP2A at the ER-chloroplast contact sites.Nature communications · 2024Article
- The VAMP-associated protein VAP27-1 plays a crucial role in plant resistance to ER stress by modulating ER-PM contact architecture in Arabidopsis.Plant communications · 2024Article
- Mechanisms of plant virus cell-to-cell transport: new lessons from complementation studies.Frontiers in plant science · 2024Article
- Studying Plant ER-PM Contact Site Localized Proteins Using Microscopy.Methods in molecular biology (Clifton, N.J.) · 2024Article
- Fine Structure of Plasmodesmata-Associated Membrane Bodies Formed by Viral Movement Protein.Plants (Basel, Switzerland) · 2023Article
33 more citing papers are in PubMed but not listed here.
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Metazoan synaptotagmins are Ca(2+) sensors that regulate exocytosis and endocytosis in various cell types, notably in nerve and neuroendocrine cells [1, 2]. Recently, the structurally related extended synaptotagmins were shown to tether the cortical ER to the plasma membrane in human and yeast cells to maintain ER morphology and stabilize ER-plasma membrane (ER-PM) contact sites for intracellular lipid and Ca(2+) signaling [3, 4]. The Arabidopsis synaptotagmin SYTA regulates endocytosis and the ability of plant virus movement proteins (MPs) to alter plasmodesmata to promote virus cell-to-cell transport [5, 6]. Yet how MPs modify plasmodesmata, the cellular functions of SYTA and how these aid MP activity, and the proteins essential to form plant cell ER-PM contact sites remain unknown. We addressed these questions using an Arabidopsis SYTA knockdown line syta-1 and a Tobamovirus movement protein MP(TVCV) [5, 7]. We report here that SYTA localized to ER-PM contact sites. These sites were depleted and the ER network collapsed in syta-1, and both reformed upon rescue with SYTA. MP(TVCV) accumulation in plasmodesmata, but not secretory trafficking, was also inhibited in syta-1. During infection, MP(TVCV) recruited SYTA to plasmodesmata, and SYTA and the cortical ER were subsequently remodeled to form viral replication sites adjacent to plasmodesmata in which MP(TVCV) and SYTA directly interacted caged within ER membrane. SYTA also accumulated in plasmodesmata active in MP(TVCV) transport. Our findings show that SYTA is essential to form ER-PM contact sites and suggest that MPs interact with SYTA to recruit these sites to alter plasmodesmata for virus cell-to-cell movement.
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Registered trials
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.