Summary
A fluorescent staining procedure to detect suberin, lignin and callose in plants has been developed. This procedure greatly improves on previous methods for visualizing Casparian bands in root exodermal and endodermal cells, and performs equally well on a variety of other plant tissues. Berberine was selected as the most suitable replacement forChelidonium majus root extract after comparing the staining properties of the extract with those of four of its constituent alkaloids. Aniline blue counterstaining efficiently quenched unwanted background fluorescence and nonspecific berberine staining, while providing a fluorochrome for callose. When used with multichambered holders which allow simultaneous processing of freehand sections, this efficient staining procedure facilitates morphological studies involving large numbers of samples.
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Abbreviations
- ISCC-NBS:
-
Inter-Society Color Council-National Bureau of Standards
- UV:
-
ultraviolet light
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Brundrett, M.C., Enstone, D.E. & Peterson, C.A. A berberine-aniline blue fluorescent staining procedure for suberin, lignin, and callose in plant tissue. Protoplasma 146, 133–142 (1988). https://doi.org/10.1007/BF01405922
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DOI: https://doi.org/10.1007/BF01405922