The Impact of Fungal Extracts on Leaf Litter on the Food Preference of Gammarus roeselii
作者： Christine Aßmann , Eric von Elert
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摘要: We investigated the effect of methanol and methanol/methylene chloride extracts oomycete Pythium sp. JN 1-b fungi Ascomycete PVSo8, Fusarium sporotrichoides, Cylindrocarpon 94-2057 on food preference Gammarus roeselii. The for leaf discs coated with these compared to uncoated was tested in food-choice assays. Methanol all strains repelled G. roeselii, extract concentration relative consumption strain specific. repellent extracts, especially sp., decreased when were grown medium as opposed synthetic containing sucrose. None affected gammarid. conclude that biologically active compounds extracted from an soluble but not chloride. Only activity observed ratios repellents attractants might determine by
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