Comparative structural study ofQuercus serrata andQ. acutissima formed byPisolithus tinctorius andHebeloma cylindrosporum |
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Authors: | K I Oh L H Melville R L Peterson |
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Institution: | (1) Faculty of Forestry, College of Agriculture, Chonnam National University, Kwangju, Korea;(2) Department of Botany, University of Guelph, N1G 2W1 Guelph, Ontario, Canada |
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Abstract: | Ectomycorrhizas were synthesized in pots and growth pouches betweenQuercus serrata, Q. acutissima, and two ectomycorrhizal fungi,Pisolithus tinctorius andHebeloma cylindrosporum. Root morphology and the structure of the mantle and Hartig net were compared using light, fluorescence, scanning and transmission
electron microscopy.P. tinctorius initially colonized root cap cells, and eventually produced a highly branched lateral root system with a complete mantle,
whereasH. cylindrosporum promoted root elongation with few hyphae on the root apex surface indicating that interaction between roots differs with
fungal species. Hartig net structure and hyphal inclusions varied between all the combinations tested. There were structural
differences between mycorrhizas ofH. cylindrosporum/Q. acutissima grown in soil and growth pouches, which indicate that the growth pouch environment can induce artefacts in roots. Fruit bodies
ofH. cylindrosporum developed in pots withQ. acutissima. AlthoughP. tinctorius has been used to inoculate oak seedlings in the nursery, results of this study indicate thatH. cylindrosporum may also be an effective ectomycorrhizal fungus forQ. serrata andQ. acutissima. |
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Keywords: | Quercus serrata Quercus acutissima Hebeloma cylindrosporum Pisolithus tinctorius Ectomycorrhizas |
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