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| Home > Publications database > The mycorrhizal fungus Paxillus involutus transports magnesium to Norway spruce seedlings |
| Home > Publications database > The mycorrhizal fungus Paxillus involutus transports magnesium to Norway spruce seedlings |
| Journal Article | PreJuSER-28115 |
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2000
Springer Science + Business Media B.V
Dordrecht [u.a.]
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Abstract: Although it is well established that ectomycorrhizas improve the mineral nutrition of forest trees, there has been little evidence that they mediate uptake of divalent cations such as Mg. We grew nonmycorrhizal seedlings and seedlings mycorrhizal with Paxillus involutus Batsch in a sand culture system with two compartments separated by a 45-mu m Nylon mesh. Hyphae, but not roots, can penetrate this net. Labeling the compartment only accessible to hyphae with Mg-25 showed that hyphae of the ectomycorrhizal fungus Paxillus involutus transported Mg to their host plant. No label was found in nonmycorrhizal control plants. Our data support the idea that ectomycorrhizas are important for the Mg nutrition of forest trees.
Keyword(s): J ; ectomycorrhiza (auto) ; hyphal transport (auto) ; magnesium nutrition (auto) ; Paxillus involutus (auto) ; Picea abies (auto)
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