Glandular Trichomes
Glandular Trichomes - Related Videos
08:18
Non-Aqueous Isolation and Enrichment of Glandular Capitate Stalked and Sessile Trichomes from Cannabis sativa
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Cited by 1 •
2023
A protocol is presented for the convenient and high-throughput isolation and enrichment of glandular capitate stalked and sessile trichomes from Cannabis sativa. The protocol is based on a dry, non-buffer extraction of trichomes using only liquid nitrogen, dry ice, and nylon sieves and is suitable for RNA extraction and transcriptomic analysis.
01:20
Classification of Epithelial Tissues: Glandular Epithelium
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2025
The glandular epithelium is made of one or more epithelial cells modified to synthesize and secrete chemical substances. Glandular epithelia can be classified based on cell number. Unicellular glands have individual secretory cells scattered across the epithelial monolayer. In contrast, multicellular glands consist of a hollow tubular duct attached to the cluster of secretory cells located in the deep pockets. Multicellular glands are formed during early development when epithelial budding...
01:22
Drug Excretion: Pulmonary and Glandular Routes
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2025
Gaseous substances like general anesthetics are absorbed and excreted through the lungs via simple diffusion. This process depends on factors such as pulmonary blood flow, respiration rate, and the substance's solubility. Gaseous anesthetics like nitrous oxide with low blood solubility are excreted rapidly, while compounds like alcohol, with high blood and tissue solubility, are excreted slowly. Drugs can also be excreted in breast milk, which is crucial for breastfeeding infants. The process...
05:53
Artificial Selection - Student Protocol
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2019
Observing Artificial Selection in Plants ExpandTo begin the experiment, collect five two-week old grown plants from the generation one population that appear healthy. Note: Plants should appear green, not wilted, and not have damaged leaves. Experimental Hypothesis: The experimental hypothesis for this lab might be that the number of lead trichomes varies naturally, but the average number will increase over generations if only plants with the highest number of trichomes are interbred or...
06:55
Diagnosis of Neoplasia in Barrett’s Esophagus using Vital-dye Enhanced Fluorescence Imaging
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Cited by 1 •
2014
Vital-dye enhanced fluorescence imaging (VFI) is a novel in vivo technique that combines high-resolution epithelial imaging with exogenous topical fluorescent contrast to highlight glandular morphology and delineate neoplasia (high grade dysplasia and cancer) in the distal esophagus.
FAQs
Development follows a genetically regulated sequence rather than occurring as a single event. Epidermal cells first acquire trichome identity, then undergo division and differentiation into stalk and secretory cells. This progression connects cell fate decisions with the later capacity to produce or store compounds. Examining these stages helps researchers relate particular genetic programs to trichome structure and function.
Two linked genetic activities are especially important: programs that establish trichome identity and development, and enzyme-activating programs that support metabolite biosynthesis. The first determines where specialized structures form, while the second enables production of compounds such as terpenes, phenolics, or acyl sugars. Studying both levels explains how plant genetics coordinates cellular development with chemical output.
Terpenes, phenolics, and acyl sugars represent chemically distinct products associated with glandular trichomes. Their presence connects genetic regulation to several biological and agricultural outcomes, including defense, attraction of beneficial organisms, aroma, and flavor. Comparing these metabolite classes can therefore reveal how developmental programs and enzyme activity contribute to different functions without treating all trichome products as equivalent.
Genes that regulate trichome development and compound production can affect how plants interact with herbivores, pathogens, and beneficial organisms. The resulting metabolites may contribute to defense or attraction, while also influencing recognizable traits such as aroma and flavor. This makes glandular trichomes a useful connection between genetic mechanisms inside plant cells and ecological or sensory outcomes at the whole-plant level.
A genetics-focused study would connect three kinds of information: how epidermal cells acquire trichome identity, how those cells divide and differentiate, and which enzyme activities support metabolite production. Researchers can then relate developmental patterns to compounds such as terpenes, phenolics, or acyl sugars. This integrated view helps identify genetic controls that influence both structure and chemical function.
Understanding the genes that control trichome formation and metabolism can identify biological features relevant to crop improvement. Developmental regulation may influence the presence of these specialized structures, while metabolic regulation may affect defensive compounds, aroma, or flavor. Connecting these genetic controls with plant traits provides a basis for considering which trichome-related characteristics could be valuable in improved crops.
Glandular trichome research supports natural-product studies and the production of valuable plant-derived compounds. Because genetic programs regulate enzymes that build biologically active metabolites, these structures provide a way to investigate how plants generate chemically useful products. The same knowledge also links chemical biology with crop-related goals, including understanding compounds that contribute to defense, aroma, and flavor.