Uptake and Distribution of Manganese and Zinc in Pinus virginiana Seedlings Infected with Pisolithus tinctorius

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Nursery grown seedlings of Pinus virginiana with infection by Pisolithus tinctorius (Pt) versus seedlings with naturally occurring mycorrhizae were used in greenhouse experiments to determine the influence of mycorrhizae on manganese and zinc uptake and distribution in seedlings. Unamended Pt mycorrhizal seedlings and those treated with 48.0 mg Mn/pot over a 2-week period accumulated significantly higher Mn concentrations in shoots than non-Pt mycorrhizal plants. Manganese accumulated in roots of non-Pt mycorrhizal, but not Pt mycorrhizal plants. Seedlings treated with 2.4 mg Zn/pot over a 2-week period had less Mn concentrated in shoots than those unamended treatments. Zinc was significantly more concentrated in the roots than in the shoots of Pt mycorrhizal plants.


Author Institution: Environmental Biology Program, The Ohio State University



The Ohio Journal of Science. v86, n1 (March, 1986), 22-25