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The properties of extracellular, soluble and insoluble invertases in mycelium of Hymenoscyphus ericae an ericoid mycorrhizal fungus, were investigated. Soluble and insoluble acid invertases were more active in sucrose- compared with glucose-grown mycelium, whereas extracellular invertase activities were similar in both glucose- and sucrose-grown cultures. Acid (pH 5·5) and alkaline (pH 9·0) invertases...
Hymenoscyphus ericae utilized sucrose, whereas the ectomycorrhizal fungi either showed poor growth or responded to the presence of sucrose after a lag phase. On sucrose-containing media, fructose and glucose accumulated in the medium at the end of the linear phase of growth of H. ericae and then disappeared during the stationary phase. Dry mass of H. ericae increased with increasing concentration...
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