Environmental scanning electron microscopic observation of the hyphal sheath and mycofibrils in Postia placenta

Environmental scanning electron microscopic observations of Postia placenta grown on a defined medium and on red spruce wood allowed for the examination of the hydrated sheath of P. placenta. In the wood environment, mature hyphae that were not adhering to the substrate were observed to have a mycof...

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Bibliographic Details
Published inCanadian journal of microbiology Vol. 41; no. 4/5; pp. 433 - 437
Main Authors Connolly, J.H, Chen, Y, Jellison, J
Format Journal Article
LanguageEnglish
Published Canada 01.04.1995
Subjects
cultured cells
deterioration
Environmental Microbiology
extracellular matrices
fungal anatomy
Fungi - ultrastructure
hyphae
Microscopy, Electron, Scanning - methods
mycofibrillar adhesive matrix
Picea rubens
polymers
Polyporales
scanning electron microscopy
Trees - microbiology
ultrastructure
wood
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Summary:Environmental scanning electron microscopic observations of Postia placenta grown on a defined medium and on red spruce wood allowed for the examination of the hydrated sheath of P. placenta. In the wood environment, mature hyphae that were not adhering to the substrate were observed to have a mycofibrillar morphology whereas hyphal tips and branch points had a smooth sheath morphology. A mycofibrillar adhesive matrix was observed on the hyphae growing on glass slides in the defined medium. These morphologies for hyphal sheaths in P. placenta are similar to those previously described by investigators from other laboratories who have used traditional electron microscopic preparative protocols that include dehydration steps. The potential future usefulness of environmental scanning electron microscopic technology in the study of the fine details of extracellular matrices is briefly discussed.
ISSN:0008-4166
1480-3275
DOI:10.1139/m95-058