ArticleThe Plant cell2013
PECTIN METHYLESTERASE INHIBITOR6 promotes Arabidopsis mucilage release by limiting methylesterification of homogalacturonan in seed coat epidermal cells.
Article in The Plant cell, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers.
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Who cites it
88 citing papers in PubMed, 131 citations in OpenAlex.
- Trimming galactose side chains of arabinogalactan proteins alters pectin and hemicellulose deposition in secondary cell walls of Arabidopsis thaliana floral stem internodes.Plant & cell physiology · 2026Article
- Pectin Structural Dynamics: Developmental and Evolutionary Perspectives.Plants (Basel, Switzerland) · 2026Review
- Genome-wide association study to identification of candidate genes influencing key seed traits in Perilla frutescens.BMC plant biology · 2025Article
- Pectin Metabolism Influences Phloem Architecture and Flowering Time in Arabidopsis Thaliana.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- New Approach to Detect and Isolate Rhamnogalacturonan-II inBio-protocol · 2025Article
- Mucilicious methods: Navigating the tools developed to Arabidopsis Seed Coat Mucilage analysis.Cell surface (Amsterdam, Netherlands) · 2025Review
- Article
- Kallfu and Wenutram: two Chilean flaxseed varieties with contrasting mucilage production, composition, and structure.Frontiers in plant science · 2025Article
- Deepening the Role of Pectin in the Tissue Assembly Process During Tomato Grafting.Plants (Basel, Switzerland) · 2024Article
- The transcription factors ZAT5 and BLH2/4 regulate homogalacturonan demethylesterification in Arabidopsis seed coat mucilage.The Plant cell · 2024Article
- Article
- Genome-wide identification and characterization of pectin methylesterase inhibitor gene family members related to abiotic stresses in watermelon.Frontiers in plant science · 2024Article
- Mucilage extracted from Chilean papaya seeds is enriched with homogalacturonan domains.Frontiers in plant science · 2024Article
- Genetic dissection of monosaccharides contents in rice whole grain using genome-wide association study.The plant genome · 2023Article
- Biochemical data documenting variations in mucilage polysaccharides in a range of glycosyltransferase mutants.Scientific data · 2023Article
- MYB-bHLH-TTG1 in a Multi-tiered Pathway Regulates Arabidopsis Seed Coat Mucilage Biosynthesis Genes Including PECTIN METHYLESTERASE INHIBITOR14 Required for Homogalacturonan Demethylesterification.Plant & cell physiology · 2023Article
- PECTIN METHYLESTERASE INHIBITOR18 functions in stomatal dynamics and stomatal dimension.Plant physiology · 2023Article
- Article
- The Genetic Control of SEEDSTICK and LEUNIG-HOMOLOG in Seed and Fruit Development: New Insights into Cell Wall Control.Plants (Basel, Switzerland) · 2022Article
- The evolving views of the simplest pectic polysaccharides: homogalacturonan.Plant cell reports · 2022Review
28 more citing papers are in PubMed but not listed here.
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7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Imbibed seeds of the Arabidopsis thaliana accession Djarly are affected in mucilage release from seed coat epidermal cells. The impaired locus was identified as a pectin methylesterase inhibitor gene, PECTIN METHYLESTERASE INHIBITOR6 (PMEI6), specifically expressed in seed coat epidermal cells at the time when mucilage polysaccharides are accumulated. This spatio-temporal regulation appears to be modulated by GLABRA2 and LEUNIG HOMOLOG/MUCILAGE MODIFIED1, as expression of PMEI6 is reduced in mutants of these transcription regulators. In pmei6, mucilage release was delayed and outer cell walls of epidermal cells did not fragment. Pectin methylesterases (PMEs) demethylate homogalacturonan (HG), and the majority of HG found in wild-type mucilage was in fact derived from outer cell wall fragments. This correlated with the absence of methylesterified HG labeling in pmei6, whereas transgenic plants expressing the PMEI6 coding sequence under the control of the 35S promoter had increased labeling of cell wall fragments. Activity tests on seeds from pmei6 and 35S:PMEI6 transgenic plants showed that PMEI6 inhibits endogenous PME activities, in agreement with reduced overall methylesterification of mucilage fractions and demucilaged seeds. Another regulator of PME activity in seed coat epidermal cells, the subtilisin-like Ser protease SBT1.7, acts on different PMEs, as a pmei6 sbt1.7 mutant showed an additive phenotype.
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