ArticleThe Plant journal : for cell and molecular biology2025
Glandless, a tomato HD-ZIP transcription factor, is important for the gland formation of type VI trichomes.
Article in The Plant journal : for cell and molecular biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- From Model Plants toPlants (Basel, Switzerland) · 2026Review
- A comparative framework for trichome and trichome-derived epidermal appendage development across model glycophytes and halophytes.Plant cell reports · 2026Review
- The C2H2-type zinc finger protein SlHair5 acts as a regulatory node coordinating trichome development and leaf morphogenesis in tomato.Plant cell reports · 2026Article
- Insights into glandular trichome biology from analysis of organ-specific gene expression programmes in cannabis, hop and tomato.The Plant journal : for cell and molecular biology · 2026Article
- The Genetic Wiring of Plant Trichomes: From Initiation to Fate Specification.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
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Authors and funding
9 authors.
Funding
Abstract
Tomato (Solanum lycopersicum) is a model plant to study glandular trichome development and their specialized metabolism, and several transcription factors (TF) regulating these intertwined traits and their network have been functionally characterized. Among them are members of the homeodomain leucine zipper subfamily IV (HD-ZIP IV). Here, we study a tomato EMS-mutant line, glandless, presenting mutant, glandless type VI trichomes with a consequential reduction in volatile terpene levels. This mutant trichome also has some morphological characteristics of a type IV trichome. The glandless mutant has altered trichome densities, and acylsugar biosynthesis is slightly increased. As verified via virus-induced gene silencing (VIGS), the gene underlying this phenotype is SlHDZ38, the first member of HD-ZIP subfamily I found to regulate the development and specialized metabolism of glandular trichomes. Additionally, we show that the expression of an intricate network of known trichome-related regulatory TFs and biosynthetic enzymes is affected by the glandless mutation. Overall, our results contribute to the elucidation of the network of TFs controlling tomato trichomes.
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