ArticleFrontiers in plant science2017
Arabinogalactan Proteins Are Involved in Salt-Adaptation and Vesicle Trafficking in Tobacco by-2 Cell Cultures.
Article in Frontiers in plant science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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37 citing papers in PubMed, 65 citations in OpenAlex.
- Unexpected Localization of AGP Epitopes in the Plastids ofInternational journal of molecular sciences · 2026Article
- Rhamnogalacturonan-II Dimerisation Reinforces Salt Resistance in Sugar Beet.Plant, cell & environment · 2026Article
- Systems acclimation to osmotic stress in zygnematophyte cells.Nature communications · 2026Article
- Arabinogalactan-proteins of the eusporangiate fernCell surface (Amsterdam, Netherlands) · 2025Article
- New insights into bryophyte arabinogalactan-proteins from a hornwort and a moss model organism.The Plant journal : for cell and molecular biology · 2025Article
- Genome-wide identification and characterization of the3 Biotech · 2025Article
- Determining the Role of OsAGP6P in Anther Development Within the Arabinogalactan Peptide Family of Rice (International journal of molecular sciences · 2025Article
- Genome-wide identification unravels the role of the arabinogalactan peptide (AGP) gene family in cotton plant architecture.Plant cell reports · 2025Article
- The viscoelastic properties of Nicotiana tabacum BY-2 suspension cell lines adapted to high osmolarity.BMC plant biology · 2025Article
- A review on the function of arabinogalactan-proteins during pollen grain development.Plant reproduction · 2025Review
- Tolerance Mechanisms of Olive Tree (Plants (Basel, Switzerland) · 2024Review
- Do Arabinogalactan Proteins Occur in the Transfer Cells ofInternational journal of molecular sciences · 2024Article
- The Localization of Cell Wall Components in the Quadrifids of Whole-Mount ImmunolabeledInternational journal of molecular sciences · 2023Article
- Differences in the Occurrence of Cell Wall Components between Distinct Cell Types in Glands ofInternational journal of molecular sciences · 2023Article
- Article
- Disclosing the molecular basis of salinity priming in olive trees using proteogenomic model discovery.Plant physiology · 2023Article
- Immunocytochemical Analysis of Bifid Trichomes inInternational journal of molecular sciences · 2023Article
- Effects of Salt Stress on Transcriptional and Physiological Responses in Barley Leaves with Contrasting Salt Tolerance.International journal of molecular sciences · 2022Article
- Article
- Functional characterization of hydroxyproline-O-galactosyltransferases for Arabidopsis arabinogalactan-protein synthesis.BMC plant biology · 2021Article
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4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Arabinogalactan proteins (AGPs) are a highly diverse family of glycoproteins that are commonly found in most plant species. However, little is known about the physiological and molecular mechanisms of their function. AGPs are involved in different biological processes such as cell differentiation, cell expansion, tissue development and somatic embryogenesis. AGPs are also involved in abiotic stress response such as salinity modulating cell wall expansion. In this study, we describe how salt-adaptation in tobacco BY-2 cell cultures induces important changes in arabinogalactan proteins distribution and contents. Using the immuno-dot blot technique with different anti-AGP antibodies (JIM13, JIM15, and others), we observed that AGPs were highly accumulated in the culture medium of salt-adapted tobacco cells, probably due to the action of phospholipases. We located these AGP epitopes using immunogold labeling in the cytoplasm associated to the endoplasmic reticulum, the golgi apparatus, and vesicles, plasma membrane and tonoplast. Our results show that salt-adaptation induced a significant reduction of the cytoplasm, plasma membrane and tonoplast content of these epitopes. Yariv reagent was added to the control and salt-adapted tobacco cell cultures, leading to cell death induction in control cells but not in salt-adapted cells. Ultrastructural and immunogold labeling revealed that cell death induced by Yariv reagent in control cells was due to the interaction of Yariv reagent with the AGPs linked to the plasma membranes. Finally, we propose a new function of AGPs as a possible sodium carrier through the mechanism of vesicle trafficking from the apoplast to the vacuoles in salt-adapted tobacco BY-2 cells. This mechanism may contribute to sodium homeostasis during salt-adaptation to high saline concentrations.
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