Tolerance of <Emphasis Type="Italic">Drosophila</Emphasis> Flies to Ibotenic Acid Poisons in Mushrooms |
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| Authors: | Nobuko Tuno Kazuo H Takahashi Hiroshi Yamashita Naoya Osawa Chihiro Tanaka |
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| Affiliation: | (1) Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan;(2) Department of Population Genetics, National Institute of Genetics, Yata 1111, Mishima, Shizuoka 411-8540, Japan;(3) Laboratory of Forest Ecology, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan;(4) Laboratory of Environmental Mycoscience, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan |
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| Abstract: | The mushroom genus Amanita has a spectrum of chemical compounds affecting survival and performance of animals. Ibotenic acid is one of such compounds
found in some Amanita mushrooms. We studied the effects of ibotenic acid and its derivative, muscimol, on egg-to-pupa survival, pupation time,
and pupal size in five Drosophila species (Diptera: Drosophilidae), Drosophila bizonata, Drosophila angularis, Drosophila brachynephros, Drosophila immigrans, and Drosophila melanogaster. The first three species are mycophagous and use a wide range of mushrooms for breeding, whereas D. immigrans and D. melanogaster are frugivorous. We reared fly larvae on artificial medium with 500, 250, 125, and 62.5 μg/ml of ibotenic acid and/or musimol.
The three mycophagous species were not susceptible to ibotenic acid, whereas the two frugivorous species were affected. In
experiments with D. melanogaster, muscimol was less toxic than ibotenic acid. |
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| Keywords: | Ibotenic acid Amanita Drosophila Susceptibility Mycophagy |
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