ArticleFrontiers in plant science2019
Physiological and Proteomic Changes in the Apoplast Accompany Leaf Senescence in
Article in Frontiers in plant science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 46 citations in OpenAlex.
- Minimally invasive quantitative tracking of minerals, sugars, amino acids, and hormones in the leaf apoplast of Arabidopsis thaliana and Vicia faba.Journal of experimental botany · 2026Article
- Abiotic Stress Alters the Nutritional, Metabolomic, and Glycomic Profiles ofFoods (Basel, Switzerland) · 2025Article
- Proteomic snapshot of pattern triggered immunity in the Arabidopsis leaf apoplast.The Plant journal : for cell and molecular biology · 2025Article
- Streamline Protocol forPlant direct · 2025Article
- Lettuce immune responses and apoplastic metabolite profile contribute to reduced internal leaf colonization by human bacterial pathogens.BMC plant biology · 2025Article
- Proteasomes accumulate in the plant apoplast where they participate in microbe-associated molecular pattern (MAMP)-triggered pathogen defense.Nature communications · 2025Article
- Multi-scale phenotyping of senescence-related changes in roots of rapeseed in response to nitrate limitation.Journal of experimental botany · 2025Article
- qPCR-based quantification reveals high plant host-specificity of endophytic colonization levels in leaves.American journal of botany · 2025Article
- Environmental alkalization suppresses deployment of virulence strategies inJournal of bacteriology · 2024Article
- Arabidopsis apoplast TET8 positively correlates to leaf senescence, andPlant direct · 2024Article
- Identification of mungbean yellow mosaic India virus and susceptibility-related metabolites in the apoplast of mung bean leaves.Plant cell reports · 2024Article
- Defense and senescence interplay in legume nodules.Plant communications · 2024Review
- The Arabidopsis leaf quantitative atlas: a cellular and subcellular mapping through unified data integration.Quantitative plant biology · 2024Article
- Improving RNA-based crop protection through nanotechnology and insights from cross-kingdom RNA trafficking.Current opinion in plant biology · 2023Review
- The Effect of Leaf Plasticity on the Isolation of Apoplastic Fluid from Leaves of Tartary Buckwheat Plants GrownPlants (Basel, Switzerland) · 2023Article
- Glutathione Contribution in Interactions betweenInternational journal of molecular sciences · 2023Article
- Extracellular RNA: mechanisms of secretion and potential functions.Journal of experimental botany · 2023Article
- Proteomic analysis of leaves and roots during drought stress and recovery inFrontiers in plant science · 2023Article
- Kaempferol rhamnoside catabolism in rosette leaves of senescing Arabidopsis and postharvest stored radish.Planta · 2022Article
- Transcriptional Programs and Regulators Underlying Age-Dependent and Dark-Induced Senescence inCells · 2022Article
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The apoplast, i.e. the cellular compartment external to the plasma membrane, undergoes important changes during senescence. Apoplastic fluid volume increases quite significantly in senescing leaves, thereby diluting its contents. Its pH elevates by about 0.8 units, similar to the apoplast alkalization in response to abiotic stresses. The levels of 159 proteins decrease, whereas 24 proteins increase in relative abundance in the apoplast of senescing leaves. Around half of the apoplastic proteins of non-senescent leaves contain a N-terminal signal peptide for secretion, while all the identified senescence-associated apoplastic proteins contain the signal peptide. Several of the apoplastic proteins that accumulate during senescence also accumulate in stress responses, suggesting that the apoplast may constitute a compartment where developmental and stress-related programs overlap. Other senescence-related apoplastic proteins are involved in cell wall modifications, proteolysis, carbohydrate, ROS and amino acid metabolism, signaling, lipid transport, etc. The most abundant senescence-associated apoplastic proteins, PR2 and PR5 (e.g. pathogenesis related proteins PR2 and PR5) are related to leaf aging rather than to the chloroplast degradation program, as their levels increase only in leaves undergoing developmental senescence, but not in dark-induced senescent leaves. Changes in the apoplastic space may be relevant for signaling and molecular trafficking underlying senescence.
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