ArticlePlanta2015
Trichome differentiation on leaf primordia of Helianthus annuus (Asteraceae): morphology, gene expression and metabolite profile.
Article in Planta, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 34 citations in OpenAlex.
- Comparative evaluation of physical methods for extracting leaf trichomes.Plant methods · 2026Article
- Plant sesquiterpene lactones.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Review
- An advanced method for the release, enrichment and purification of high-quality Arabidopsis thaliana rosette leaf trichomes enables profound insights into the trichome proteome.Plant methods · 2022Article
- Ultrastructural Alterations in Cells of Sunflower Linear Glandular Trichomes during Maturation.Plants (Basel, Switzerland) · 2021Article
- Glandular trichomes of the flowers and leaves in Millingtonia hortensis (Bignoniaceae).Planta · 2021Article
- Metabolomic and Gene Expression Studies Reveal the Diversity, Distribution and Spatial Regulation of the Specialized Metabolism of Yacón (International journal of molecular sciences · 2020Article
- Article
- Metabolomic and gene expression approaches reveal the developmental and environmental regulation of the secondary metabolism of yacón (Smallanthus sonchifolius, Asteraceae).Scientific reports · 2019Article
- Plant Glandular Trichomes: Natural Cell Factories of High Biotechnological Interest.Plant physiology · 2017Review
- Direct Analyses of Secondary Metabolites by Mass Spectrometry Imaging (MSI) from Sunflower (Helianthus annuus L.) Trichomes.Molecules (Basel, Switzerland) · 2017Article
- Genetic Architecture of Capitate Glandular Trichome Density in Florets of Domesticated Sunflower (Frontiers in plant science · 2017Article
- A machine learning approach to study plant functional trait divergence.Applications in plant sciencesArticle
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
MAIN
conclusionSunflower trichomes fully develop on embryonic plumula within 3 days after start of germination. Toxic sesquiterpene lactones are produced immediately thereafter thus protecting the apical bud of the seedling against herbivory. Helianthus annuus harbors non-glandular and two different types of multicellular glandular trichomes, namely the biseriate capitate glandular trichomes and the uniseriate linear glandular trichomes. The development of capitate glandular trichomes is well known from anther tips on sunflower disk florets, but not from leaves and no information is yet available on the development of the linear glandular trichomes. Scanning electron microscopy of sunflower seedlings unravelled that within the first 40 h of seed germination all three types of trichomes started to emerge on primordia of the first true leaves. Within the following 20-30 h trichomes developed from trichoblasts to fully differentiated hairs. Gene expression studies showed that genes involved in the trichome-based sesquiterpene lactone formation were up-regulated between 72 and 96 h after start of germination. Metabolite profiling with HPLC confirmed the synthesis of sesquiterpene lactones which may contribute to protect the germinating seedlings from herbivory. The study has shown that sunflower leaf primordia can serve as a fast and easy to handle model system for the investigation of trichome development in Asteraceae.
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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.