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Electrophysiological responses of four fungivorous coleoptera to volatiles of Trametes versicolor: implications for host selection

Title data

Drilling, Kai ; Dettner, Konrad:
Electrophysiological responses of four fungivorous coleoptera to volatiles of Trametes versicolor: implications for host selection.
In: Chemoecology. Vol. 19 (2009) Issue 2 . - pp. 109-115.
ISSN 1423-0445
DOI: https://doi.org/10.1007/s00049-009-0015-9

Abstract in another language

Fungi of the genus Trametes are known as important wood decomposers and are colonized by various species of Coleoptera and other arthropods. The aim of the present study was to investigate the importance of volatile chemical compounds as key attraction factors in recognitionand host selection by species of Erotylidae (Dacne bipustulata, Tritoma bipustulata) as well as Cisidae (Sulcacis affinis) and Tenebrionidae (Diaperis boleti). Volatiles from freshly collected Trametes versicolor were collected by headspace sampling technique and identified by combinedgas chromatography-mass spectrometry (GC-MS). To evaluate the biological significance of the volatiles we performed behavioural tests and recorded antennal responses of the fungus-inhabiting species by gas chromatographywith electroantennographic detection (GC-EAD). The scent of T. versicolor was found to be dominated by sesquiterpenes; in GC-EAD 6 of these compounds elicited reproducible antennal signals in the tested species.Highly significant attraction effects to the fungus, the obtained odor samples and previously described fungal C8-compounds were observed inbehavioural tests. The possibility to detect these chemical compounds as a key cue for host selection implicate that beetles are able to discriminate between fungi of different age as well as different stages of colonization.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER72453
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology II - Evolutionary Animal Ecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Former Professors > Chair Animal Ecology II - Univ.-Prof. Dr. Konrad Dettner
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Research Institutions
Research Institutions > Research Centres
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Former Professors
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 05 Jun 2015 06:18
Last Modified: 05 Jun 2015 06:18
URI: https://eref.uni-bayreuth.de/id/eprint/14696