Antennal and Behavioral Responses of Cis boleti to Fungal Odor of Trametes gibbosa
Identifieur interne : 000746 ( Main/Exploration ); précédent : 000745; suivant : 000747Antennal and Behavioral Responses of Cis boleti to Fungal Odor of Trametes gibbosa
Auteurs : Prodpran Thakeow [Allemagne] ; Sergio Angeli [Allemagne] ; Bernhard Weibecker [Allemagne] ; Stefan Schtz [Allemagne]Source :
- Chemical Senses [ 0379-864X ] ; 2008-02-17.
Abstract
Cis boleti (Coleoptera: Ciidae) preferentially colonizes fungi from the genus Trametes that are known as important wood decomposers. The aim of our research was to investigate if C. boleti uses the chemical volatile composition of its fungal host, Trametes gibbosa, as a key attraction factor. Therefore, the T. gibbosa fruiting body volatiles were analysed by using gas chromatographymass spectrometry, with parallel electroantennographic detection (GC-MS/EAD) using adults of C. boleti. Furthermore, we examined the behavioral responses of C. boleti to the T. gibbosa volatile compounds. The dominant component of the T. gibbosa fruiting body bouquet was 1-octen-3-ol. Other volatiles, like the aldehydes hexanal, nonanal, and (E,E)-2,4-decadienal and the terpene -bisabolol, were present in minor quantities. 1-Octen-3-ol was released with a ratio of the (R)- and (S)-enantiomers of 93:7, respectively. Electroantennography (EAG) employing C. boleti antennae yielded consistently dominant responses to 1-octen-3-ol. GCEAD and EAG responses to pure standard compounds showed that C. boleti also perceived other host fungal volatiles. A highly significant attraction to 1-octen-3-ol was observed in behavioral tests. Female beetles were significantly attracted to the (S)-()- enantiomer at 10 times lower doses than male beetles. Our finding is the first direct proof that ciid beetles use 1-octen-3-ol as a key cue for host finding.
Url:
DOI: 10.1093/chemse/bjn005
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The aim of our research was to investigate if C. boleti uses the chemical volatile composition of its fungal host, Trametes gibbosa, as a key attraction factor. Therefore, the T. gibbosa fruiting body volatiles were analysed by using gas chromatographymass spectrometry, with parallel electroantennographic detection (GC-MS/EAD) using adults of C. boleti. Furthermore, we examined the behavioral responses of C. boleti to the T. gibbosa volatile compounds. The dominant component of the T. gibbosa fruiting body bouquet was 1-octen-3-ol. Other volatiles, like the aldehydes hexanal, nonanal, and (E,E)-2,4-decadienal and the terpene -bisabolol, were present in minor quantities. 1-Octen-3-ol was released with a ratio of the (R)- and (S)-enantiomers of 93:7, respectively. Electroantennography (EAG) employing C. boleti antennae yielded consistently dominant responses to 1-octen-3-ol. GCEAD and EAG responses to pure standard compounds showed that C. boleti also perceived other host fungal volatiles. A highly significant attraction to 1-octen-3-ol was observed in behavioral tests. Female beetles were significantly attracted to the (S)-()- enantiomer at 10 times lower doses than male beetles. Our finding is the first direct proof that ciid beetles use 1-octen-3-ol as a key cue for host finding.</div></front></TEI><affiliations><list><country><li>Allemagne</li></country><region><li>Basse-Saxe</li></region><settlement><li>Göttingen</li></settlement></list><tree><country name="Allemagne"><region name="Basse-Saxe"><name sortKey="Thakeow, Prodpran" sort="Thakeow, Prodpran" uniqKey="Thakeow P" first="Prodpran" last="Thakeow">Prodpran Thakeow</name></region><name sortKey="Angeli, Sergio" sort="Angeli, Sergio" uniqKey="Angeli S" first="Sergio" last="Angeli">Sergio Angeli</name><name sortKey="Schtz, Stefan" sort="Schtz, Stefan" uniqKey="Schtz S" first="Stefan" last="Schtz">Stefan Schtz</name><name sortKey="Thakeow, Prodpran" sort="Thakeow, Prodpran" uniqKey="Thakeow P" first="Prodpran" last="Thakeow">Prodpran Thakeow</name><name sortKey="Weibecker, Bernhard" sort="Weibecker, Bernhard" uniqKey="Weibecker B" first="Bernhard" last="Weibecker">Bernhard Weibecker</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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