Tricholoma matsutake 1-Ocen-3-ol and methyl cinnamate repel mycophagous Proisotoma minuta (Collembola: Insecta).
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.
Sawahata
Takuo
T
Matsunoyama Museum of Natural Science, Tokamachi City, Niigata, Japan. Sawahata.takuo@belnatio.com
Shimano
Satoshi
S
Suzuki
Masahiro
M
D000363:Agaricales / Q000737:chemistry*; D000818:Animals; D002934:Cinnamates / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D007302:Insect Repellents / Q000494:pharmacology*; D007313:Insecta / Q000187:drug effects*; D025282:Mycelium / Q000737:chemistry; D000442:Octanols / Q000494:pharmacology*
D002934:Cinnamates; D007302:Insect Repellents; D000442:Octanols; C025385:methyl cinnamate; C038844:1-octen-3-ol