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Leachate from a Waste Disposal Centre reduces the initiation of arbuscular mycorrhiza, and spread of hyphae in soil
G.S. Pattinson, B.G. Sutton and P.A. McGee
Plant and Soil
Vol. 227, No. 1/2 (2000), pp. 35-45
Published by: Springer
Stable URL: http://www.jstor.org/stable/42950910
Page Count: 11
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Irrigating arbuscular mycorrhizal plants with leachate from a waste disposal centre was examined in a set of experiments. Application of leachate at half the average concentration found in the field or higher reduced the growth of the host plant, the initiation of mycorrhizal colonisation, and hyphal growth of the mycorrhizal fungus Glomus pellucidum through the soil. Causes of these reductions are complex and interrelated, and associated with the electrical conductivity of the solution, toxicity of specific ions, in particular NH₄⁺, NH₃ and HCO₃⁻, and changes in the pH causing shifts in the equilibria of the soil solution.
Plant and Soil © 2000 Springer