ArticleThe Plant journal : for cell and molecular biology2008
The plant innate immunity response in stomatal guard cells invokes G-protein-dependent ion channel regulation.
Article in The Plant journal : for cell and molecular biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.
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Who cites it
105 citing papers in PubMed, 200 citations in OpenAlex.
- Cell-type-specific immune programs orchestrate spatial defense in the Arabidopsis leaf epidermis.Nature communications · 2026Article
- Phosphorylation-activated G protein signaling stabilizes TCP14 and JAZ3 to repress JA signaling and enhance plant immunity.Molecular plant · 2025Article
- The Arabidopsis F-box protein FBS associated with the helix-loop-helix transcription factor FAMA involved in stomatal immunity.Plant molecular biology · 2025Article
- Trade-Off Regulation in Plant Growth and Stress Responses Through the Role of Heterotrimeric G Protein Signaling.Plants (Basel, Switzerland) · 2024Review
- Oryza CLIMtools: A genome-environment association resource reveals adaptive roles for heterotrimeric G proteins in the regulation of rice agronomic traits.Plant communications · 2024Article
- Stomatal responses to VPD utilize guard cell intracellular signaling components.Frontiers in plant science · 2024Article
- TheInternational journal of molecular sciences · 2023Article
- Oryza CLIMtools: A Genome-Environment Association Resource Reveals Adaptive Roles for Heterotrimeric G Proteins in the Regulation of Rice Agronomic Traits.bioRxiv : the preprint server for biology · 2023Article
- Microgravity and evasion of plant innate immunity by human bacterial pathogens.NPJ microgravity · 2023Review
- Elicitor-induced plant immunity relies on amino acids accumulation to delay the onset of bacterial virulence.Plant physiology · 2023Article
- Pathogen-triggered changes in plant development: Virulence strategies or host defense mechanism?Frontiers in microbiology · 2023Review
- MAMP-elicited changes in amino acid transport activity contribute to restricting bacterial growth.Plant physiology · 2022Article
- GCR1 Positively Regulates UV-B- and Ethylene-Induced Stomatal Closure via Activating GPA1-Dependent ROS and NO Production.International journal of molecular sciences · 2022Article
- Review
- Waking up for defense! Melatonin as a regulator of stomatal immunity in plants.Plant physiology · 2022Article
- The role of photosynthetic activity in the regulation of flg22-induced local and systemic defence reaction in tomato.Photosynthetica · 2022Article
- Stb6 mediates stomatal immunity, photosynthetic functionality, and the antioxidant system during theFrontiers in plant science · 2022Article
- The First Line of Defense: Receptor-like Protein Kinase-Mediated Stomatal Immunity.International journal of molecular sciences · 2021Review
- Activation of Local and Systemic Defence Responses by Flg22 Is Dependent on Daytime and Ethylene in Intact Tomato Plants.International journal of molecular sciences · 2021Article
- In vivo single-particle tracking of the aquaporin AtPIP2;1 in stomata reveals cell type-specific dynamics.Plant physiology · 2021Article
45 more citing papers are in PubMed but not listed here.
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
Abstract
Stomata in the epidermis of terrestrial plants are important for CO2 absorption and transpirational water loss, and are also potential points of entry for pathogens. Stomatal opening and closure are controlled by distinct mechanisms. Arabidopsis stomata have been shown to close in response to bacteria and pathogen-associated molecular patterns (PAMPs) as part of PAMP-triggered immunity (PTI). Here we show that flg22, a PAMP derived from bacterial flagellin, also inhibits light-induced stomatal opening. Consistent with our observations on stomatal opening, flg22 inhibits the inward K+ channels (K+ (in) currents) of guard cells that mediate K+ uptake during stomatal opening. Similar to previously documented K+ current changes triggered by exogenous elevation of H(2)O(2) and nitric oxide (NO), with prolonged duration of flg22 exposure the outward K+ channels (K+ (out) currents) of guard cells are also inhibited. In null mutants of the flg22 receptor, FLS2, flg22 regulation of stomatal opening, K+ (in) currents, and K+ (out) currents is eliminated. flg22 also fails to elicit these responses in null mutants of the sole canonical G-protein alpha subunit, GPA1. The bacterial toxin, coronatine, produced by several pathogenic strains of Pseudomonas syringae, reverses the inhibitory effects of flg22 on both K+ (in) currents and stomatal opening, indicating interplay between plant and pathogen in the regulation of plant ion channels. Thus, the PAMP-triggered stomatal response involves K+ channel regulation, and this regulation is dependent on signaling via cognate PAMP receptors and a heterotrimeric G-protein. These new findings provide insights into the largely elusive signaling process underlying PTI-associated guard cell responses.
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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.