ArticlePlant physiology2023
PECTIN METHYLESTERASE INHIBITOR18 functions in stomatal dynamics and stomatal dimension.
Article in Plant physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 28 citations in OpenAlex.
- Role of primary protectors of plant cells in salinity tolerance: molecular mechanisms and adaptive strategies.Plant signaling & behavior · 2026Review
- Pectin Structural Dynamics: Developmental and Evolutionary Perspectives.Plants (Basel, Switzerland) · 2026Review
- Pectin under stress: Pectin methylesterases at the core of cell wall remodeling, integrity sensing, and signaling in plants.Plant communications · 2026Review
- Advances in the functional research of pectin methylesterases in Arabidopsis thaliana.BMC plant biology · 2026Review
- A review of guard cell wall architecture in shaping stomatal morphology and function.Frontiers in plant science · 2026Review
- The MsNAC73-MsMPK3 Complex Modulates Salt Tolerance and Shoot Branching of Alfalfa via Activating MsPG2 and MsPAE12 Expressions.Plant biotechnology journal · 2025Article
- Effect of Singlet Oxygen on the Stomatal and Cell Wall of Rice Seedling Under Different Stresses.International journal of molecular sciences · 2025Article
- Transcriptome profiling reveals key genes in eggplant (Solanum melongena) roots under salt stress.BMC genomics · 2025Article
- Mucilicious methods: Navigating the tools developed to Arabidopsis Seed Coat Mucilage analysis.Cell surface (Amsterdam, Netherlands) · 2025Review
- The Atypical Pectin Methylesterase Family Member PME31 Promotes Seedling Lipid Droplet Utilization.Plant direct · 2025Article
- Variation in WIDTH OF LEAF AND GRAIN contributes to grain and leaf size by controlling LARGE2 stability in rice.The Plant cell · 2024Article
- Morphological Innovation Drives Sperm Release in Bryophytes.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Host-pathogen interaction between pitaya and Neoscytalidium dimidiatum reveals the mechanisms of immune response associated with defense regulators and metabolic pathways.BMC plant biology · 2024Article
- Pectin methylesterase 31 is transcriptionally repressed by ABI5 to negatively regulate ABA-mediated inhibition of seed germination.Frontiers in plant science · 2024Article
- Singlet oxygen induces cell wall thickening and stomatal density reducing by transcriptome reprogramming.The Journal of biological chemistry · 2023Article
- Golgi ELMO1 binds QUA1, QUA2, GAUT9, and ELMO4 and is required for pectin accumulation in Arabidopsis.PloS one · 2023Article
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pectin methylesterification in guard cell (GC) walls plays an important role in stomatal development and stomatal response to external stimuli, and pectin methylesterase inhibitors (PMEIs) modulate pectin methylesterification by inhibition of pectin methylesterase (PME). However, the function of PMEIs has not been reported in stomata. Here, we report the role of Arabidopsis (Arabidopsis thaliana) PECTIN METHYLESTERASE INHIBITOR18 in stomatal dynamic responses to environmental changes. PMEI18 mutation increased pectin demethylesterification and reduced pectin degradation, resulting in increased stomatal pore size, impaired stomatal dynamics, and hypersensitivity to drought stresses. In contrast, overexpression of PMEI18 reduced pectin demethylesterification and increased pectin degradation, causing more rapid stomatal dynamics. PMEI18 interacted with PME31 in plants, and in vitro enzymatic assays demonstrated that PMEI18 directly inhibits the PME activity of PME31 on pectins. Genetic interaction analyses suggested that PMEI18 modulates stomatal dynamics mainly through inhibition of PME31 on pectin methylesterification in cell walls. Our results provide insight into the molecular mechanism of the PMEI18-PME31 module in stomatal dynamics and highlight the role of PMEI18 and PME31 in stomatal dynamics through modulation of pectin methylesterification and distribution in GC walls.
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