ArticleThe Plant journal : for cell and molecular biology2021
Ride to cell wall: Arabidopsis XTH11, XTH29 and XTH33 exhibit different secretion pathways and responses to heat and drought stress.
Article in The Plant journal : for cell and molecular biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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41 citing papers in PubMed, 68 citations in OpenAlex.
- The Plant Cell Wall: From Structural Diversity and Biosynthesis to Integrity Signaling and Physiological Functions.Plants (Basel, Switzerland) · 2026Review
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- Chromosome-scale genome of Myriophyllum spicatum unveils the role of allohexaploidy in driving aquatic adaptation and widespread invasion.The Plant journal : for cell and molecular biology · 2026Article
- The Role of a Novel Gene,Plants (Basel, Switzerland) · 2026Article
- Cargo-driven extracellular vesicles as pharmaceutical nanocarriers: A pharmaceutics-oriented comparison of animal exosomes and plant-derived exosome-like nanoparticles.International journal of pharmaceutics: X · 2026Review
- Identification and expression analysis of the Xyloglucan Transglycosylase/Hydrolase (XTH) gene family under salt stress in cowpea (Vigna unguiculata L.).BMC genomics · 2026Article
- Plant-derived extracellular vesicles for drug delivery: current and future.Regenerative biomaterials · 2026Review
- Identification of thePlants (Basel, Switzerland) · 2025Article
- Transcriptomic insights into drought response in wild Arachis relatives A. dardani and A. ipaënsis.BMC plant biology · 2025Article
- AI-Integrated Omics Analysis Reveals Cultivar-Specific Resistance Mechanisms to Powdery Mildew inInternational journal of molecular sciences · 2025Article
- Xyloglucan Endotransglycosylase/Hydrolase Downregulation IncreasesInternational journal of molecular sciences · 2025Article
- The role of plant cell walls in pest resistance: current insights and future perspectives.Journal of experimental botany · 2025Review
- An integrative multi-omics analysis of histone modifications and DNA methylation reveals the epigenomic landscape in apple under drought stress.Plant biotechnology journal · 2025Article
- Bioengineered poplar fibres via PagGLR2.8 editing: A synergistic design for high-performance biocomposites.Plant biotechnology journal · 2025Article
- QTL mapping and transcriptome analysis identified BnaA03.XTH4 as a novel negative regulator of plant height in Brassica napus L.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Identification and Expression Profiles of Xyloglucan Endotransglycosylase/Hydrolase Family in Response to Drought Stress inPlants (Basel, Switzerland) · 2025Article
- From spore to gametophyte: Investigating morphological dynamics of hyaline cells and corresponding gene expression patterns in Sphagnum.BMC plant biology · 2025Article
- ROS homeostasis and cell wall biosynthesis pathway are involved in female inflorescence development of birch (Betula platyphylla).BMC plant biology · 2025Article
- Review
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4 authors at 1 institution in 1 country.
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Abstract
The xyloglucan endotransglucosylase/hydrolases (XTHs) are enzymes involved in cell wall assembly and growth regulation, cleaving and re-joining hemicellulose chains in the xyloglucan-cellulose network. Here, in a homologous system, we compare the secretion patterns of XTH11, XTH33 and XTH29, three members of the Arabidopsis thaliana XTH family, selected for the presence (XTH11 and XTH33) or absence (XTH29) of a signal peptide, and the presence of a transmembrane domain (XTH33). We show that XTH11 and XTH33 reached, respectively, the cell wall and plasma membrane through a conventional protein secretion (CPS) pathway, whereas XTH29 moves towards the apoplast following an unconventional protein secretion (UPS) mediated by exocyst-positive organelles (EXPOs). All XTHs share a common C-terminal functional domain (XET-C) that, for XTH29 and a restricted number of other XTHs (27, 28 and 30), continues with an extraterminal region (ETR) of 45 amino acids. We suggest that this region is necessary for the correct cell wall targeting of XTH29, as the ETR-truncated protein never reaches its final destination and is not recruited by EXPOs. Furthermore, quantitative real-time polymerase chain reaction analyses performed on 4-week-old Arabidopsis seedlings exposed to drought and heat stress suggest a different involvement of the three XTHs in cell wall remodeling under abiotic stress, evidencing stress-, organ- and time-dependent variations in the expression levels. Significantly, XTH29, codifying the only XTH that follows a UPS pathway, is highly upregulated with respect to XTH11 and XTH33, which code for CPS-secreted proteins.
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