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KMID : 0380120000230020169
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Korean Journal of Ecology
2000 Volume.23 No. 2 p.169 ~ p.173
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Temporal Distribution of Ectomycorrhizal Fungi and Pollen as a Seasonal Nutrient Source in a Boreal Forest, Canada
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Lee Eun-Ju
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Abstract
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Seasonal distribution of ectomycorrhizal associations in various types of forest in a boreal forest in Manitoba, Canada was investigated. Alsohe relationship between ectomycorrhizal growth and pine pollen nutrients was examined. In four different forest stands, ectomycorrhizas tended to be lower in the spring than in the summer and fall samples. In addition, a mature jack pine (Pinus banksiana) stand showed higher mycorrhizal activities than a young jack pine stand. Growth of Suillus brevipes hyphae wa ts stimulated by additions of pollen representing mean pollen deposition in Mistik Creek study area after 30 and 70 days of growth with dextrose availability. This result suggests that the peak ectomycorrhizal activity is followed by pollen deposition in the study region and therefore, addition of pine and spruce pollen in early or middle of June in the boreal forest can be an important seasonal nutrient source for ectomycorrhizal growth.
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