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Selective odor perception in the soil collembola Onychiurus armatus

Bengtsson, Göran LU ; Hedlund, Katarina LU and Rundgren, Sten LU (1991) In Journal of Chemical Ecology 17(11). p.2113-2125
Abstract

The olfactorial response of the fungivorous soil collembolan Onychiurus armatus was examined in a bioassay covering volatile compounds identified in the odor blends of two of its preferred fungal species Monierella isabellina and Verticillium bulbillosum. The odor of the fungi was trapped using activated carbon filters, extracted with diethyl ether, and subjected to GC-MS analysis. About 50% of the compounds resolved by GC were identified by a combination of electron impact and chemical ionization mass spectrometry. In a Y-shaped olfactometer the collembolans were attracted to a variety of common odors, such as CO2 and 2-methyl-1-propanol, and a species-specific odor, such as 1-heptene, and arrested by, for example, decanal... (More)

The olfactorial response of the fungivorous soil collembolan Onychiurus armatus was examined in a bioassay covering volatile compounds identified in the odor blends of two of its preferred fungal species Monierella isabellina and Verticillium bulbillosum. The odor of the fungi was trapped using activated carbon filters, extracted with diethyl ether, and subjected to GC-MS analysis. About 50% of the compounds resolved by GC were identified by a combination of electron impact and chemical ionization mass spectrometry. In a Y-shaped olfactometer the collembolans were attracted to a variety of common odors, such as CO2 and 2-methyl-1-propanol, and a species-specific odor, such as 1-heptene, and arrested by, for example, decanal and 2-octene. The response was not improved by pairwise combinations of common and specific odors. An amount of 0.5 ng of ethyl acetate or 3 pg of 1-pentanol was sufficient to attract the collembolans. The specific compounds of V. bulbillosum, 1-heptene and 1-octen-3-ol, may be key stimuli explaining why O. armatus prefers V. bulbillosum.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
attractants, Collembola, Fungal volatiles, fungivor, GC-MS, Monierella, olfactorial, Onychiurus armatus, Verticillium
in
Journal of Chemical Ecology
volume
17
issue
11
pages
2113 - 2125
publisher
Springer
external identifiers
  • scopus:0001293469
ISSN
0098-0331
DOI
10.1007/BF00987995
language
English
LU publication?
yes
id
07fe335b-db30-4c90-9da9-0308ab1a752a
date added to LUP
2019-01-02 12:35:35
date last changed
2019-01-10 16:38:15
@article{07fe335b-db30-4c90-9da9-0308ab1a752a,
  abstract     = {<p>The olfactorial response of the fungivorous soil collembolan Onychiurus armatus was examined in a bioassay covering volatile compounds identified in the odor blends of two of its preferred fungal species Monierella isabellina and Verticillium bulbillosum. The odor of the fungi was trapped using activated carbon filters, extracted with diethyl ether, and subjected to GC-MS analysis. About 50% of the compounds resolved by GC were identified by a combination of electron impact and chemical ionization mass spectrometry. In a Y-shaped olfactometer the collembolans were attracted to a variety of common odors, such as CO<sub>2</sub> and 2-methyl-1-propanol, and a species-specific odor, such as 1-heptene, and arrested by, for example, decanal and 2-octene. The response was not improved by pairwise combinations of common and specific odors. An amount of 0.5 ng of ethyl acetate or 3 pg of 1-pentanol was sufficient to attract the collembolans. The specific compounds of V. bulbillosum, 1-heptene and 1-octen-3-ol, may be key stimuli explaining why O. armatus prefers V. bulbillosum.</p>},
  author       = {Bengtsson, Göran and Hedlund, Katarina and Rundgren, Sten},
  issn         = {0098-0331},
  keyword      = {attractants,Collembola,Fungal volatiles,fungivor,GC-MS,Monierella,olfactorial,Onychiurus armatus,Verticillium},
  language     = {eng},
  month        = {11},
  number       = {11},
  pages        = {2113--2125},
  publisher    = {Springer},
  series       = {Journal of Chemical Ecology},
  title        = {Selective odor perception in the soil collembola Onychiurus armatus},
  url          = {http://dx.doi.org/10.1007/BF00987995},
  volume       = {17},
  year         = {1991},
}