Tricholoma matsutake 1-Ocen-3-ol and methyl cinnamate repel mycophagous Proisotoma minuta (Collembola: Insecta) |
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| Authors: | Takuo Sawahata Satoshi Shimano Masahiro Suzuki |
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| Institution: | (1) Matsunoyama Museum of Natural Science, Tokamachi City Niigata, 942-1411, Japan;(2) Enviromental Education Center, Miyagi University of Education Aramaki Aza-Aoba, Aoba-ku, Sendai City Miyagi, 980-0845, Japan;(3) Department of Upland Farming, National Agricultural Research Center for Tohoku Region, Arai, Fukushima City Fukushima, 960-2156, Japan;(4) Present address: Atema Highland Resort, Tamagawa, Tokamachi City Niigata, 949-8556, Japan |
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| Abstract: | Two major volatiles produced by the mycelia and fruiting bodies of Tricholoma matsutake (1-octen-3-ol and methyl cinnamate) repel a mycophagous collembolan, Proisotoma minuta. Aggregation of the collembolans on their diet was significantly inhibited by exposure to 1 ppm methyl cinnamate or 10 to
100 ppm 1-octen-3-ol. The aggregation activity decreased dose-dependently upon exposure to 1-octen-3-ol at concentrations
higher than 0.01 ppm. Aggregation in the presence of methyl cinnamate exhibited three phases: no significant effect at concentrations
ranging from 0.001 to 0.1 ppm, significant inhibition from 1 to 100 ppm, and strong inhibition at 1,000 ppm. These results
may explain why certain collembolan species do not prefer T. matsutake fruiting bodies. |
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| Keywords: | Collembola Matsutake Methyl cinnamate 1-Octen-3-ol Repellent activity of Tricholoma |
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