Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/27433
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Type: Journal article
Title: Visualization of mycorrhizal fungal structures in resin embedded tissues with xanthene dyes using laser scanning confocal microscopy
Author: Melville, L.
Dickson, S.
Farquhar, M.
Smith, S.
Peterson, R.
Citation: Botany, 1998; 76(1):174-178
Publisher: NATL RESEARCH COUNCIL CANADA
Issue Date: 1998
ISSN: 0008-4026
Statement of
Responsibility: 
Melville, Lewis Dickson, Sandy ; Farquhar, Melissa L ; Smith, S E ; Peterson, R. Larry
Abstract: <jats:p> The xanthene dyes sulforhordamine G, phloxine B, rose Bengal, and 4,5,6,7-tetrachloroflorescein were used as fluorochromes for laser scanning confocal microscopy of LR-White resin-embedded mycorrhizae. Sulforhodamine G was the most effective dye, giving an even staining of cell components throughout the material, with minimal background fluorescence of LR-White resin. Confocal microscopy of stained blocks of tissue on a slide, viewed without the use of a coverslip, revealed the three-dimensional nature of various mycorrhizal structures; these structures included arbuscules, vesicles, and coiled hyphae in arbuscular mycorrhizae; coiled hyphae in orchid mycorrhizae; mantle and Hartig net hyphae in ectomycorrhizae; and intracellular hyphae in arbutoid mycorrhizae. Sections mounted on slides viewed with confocal microscopy provided exceptional clarity of fungal form and cytoplasmic contents and showed the relationship to the plant cells, also with negligible background fluorescence. Mounting and staining blocks of resin-embedded material provided a fast and effective technique for the visualization of a variety of plant and fungal tissues. Stain penetration in whole-mounted samples was sufficient to reconstruct clear three-dimensional images using confocal microscopy.Key words: mycorrhizae, xanthene dyes, confocal microscopy, resin embedding. </jats:p>
DOI: 10.1139/b97-158
Appears in Collections:Aurora harvest 6
Soil and Land Systems publications

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