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Description
Scanning electron micrograph of stinging hairs on the surface of a nettle leaf. The large stinging hairs (trichomes) are hollow tubes with walls of silica making them into tiny glass needles. The bulb at the base of each hair contains the stinging liquid that includes formic acid, histamine, acetylcholine and 5- hydroxytryptamine (serotonin). The tips of the glassy hairs are very easily broken when brushed, leaving a sharp point, which easily pierces the skin to deliver the sting. Research Data Curation Program, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/rdcp) Hirst, Liz (2021). CIL:38911, Urtica dioica, leaf. In Cell Image Library. UC San Diego Library Digital Collections. Dataset. https://doi.org/10.6075/J0QC02B2
Type
image
Identifier
ark:/20775/bb88803181
Language
No linguistic content
Subject
Leaf morphogenesis Leaf trichome development stage Leaf Trichome Urtica dioica
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