ArticleDevelopment (Cambridge, England)2024
Dual role of BdMUTE during stomatal development in the model grass Brachypodium distachyon.
Article in Development (Cambridge, England), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Whole-Mount In Situ Hybridization Using Microwave Treatment.Methods in molecular biology (Clifton, N.J.) · 2027Article
- Force-responsive symmetric cell divisions orient stomata along global tissue axes.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- What fresh cell is this? Building a single-cell atlas of developing grass leaves in Brachypodium distachyon.The Plant cell · 2026Article
- The developing leaf of the wild grass Brachypodium distachyon at single-cell resolution.The Plant cell · 2026Article
- MUTE drives asymmetric divisions to form stomatal subsidiary cells in Crassulaceae succulents.Science advances · 2026Article
- Unlocking grass leaf development: foundations for tunable cereal design.The New phytologist · 2025Review
- SPEECHLESS duplication in grasses expands potential for environmental regulation of stomatal development.bioRxiv : the preprint server for biology · 2025Article
- Do grasses have meristemoids?The New phytologist · 2025Article
- How meristems shape plant architecture in cereals-Cereal Stem Cell Systems (CSCS) Consortium.The Plant cell · 2025Review
- Stomatal development in the changing climate.Development (Cambridge, England) · 2024Review
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Authors and funding
7 authors.
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Abstract
Grasses form morphologically derived, four-celled stomata, where two dumbbell-shaped guard cells (GCs) are flanked by two lateral subsidiary cells (SCs). This innovative form enables rapid opening and closing kinetics and efficient plant-atmosphere gas exchange. The mobile bHLH transcription factor MUTE is required for SC formation in grasses. Yet whether and how MUTE also regulates GC development and whether MUTE mobility is required for SC recruitment is unclear. Here, we transgenically impaired BdMUTE mobility from GC to SC precursors in the emerging model grass Brachypodium distachyon. Our data indicate that reduced BdMUTE mobility severely affected the spatiotemporal coordination of GC and SC development. Furthermore, although BdMUTE has a cell-autonomous role in GC division orientation, complete dumbbell morphogenesis of GCs required SC recruitment. Finally, leaf-level gas exchange measurements showed that dosage-dependent complementation of the four-celled grass morphology was mirrored in a gradual physiological complementation of stomatal kinetics. Together, our work revealed a dual role of grass MUTE in regulating GC division orientation and SC recruitment, which in turn is required for GC morphogenesis and the rapid kinetics of grass stomata.
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