Abstract
The distribution of microscopic glandular structures (hairs, capsules, nodules) on a leaf or other plant part can be recorded visually by pressing the plant part against an indicator surface (filter paper, thin-layer chromatography plate) soaked in Tollens' reagent. The glandular sites are revealed instantly on the test surface as dark spots.
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Eisner, T., Eisner, M. & Meinwald, J. Technique for visualization of epidermal glandular structures in plants. J Chem Ecol 13, 943–946 (1987). https://doi.org/10.1007/BF01020173
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DOI: https://doi.org/10.1007/BF01020173