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Article

Ectomycorrhizal Influence on the Dynamics of Sesquiterpene Release by Tricholoma vaccinum

1
Institute of Microbiology, Microbial Communication, Friedrich Schiller University Jena, Neugasse 25, 07743 Jena, Germany
2
Max Planck Institute for Chemical Ecology, Bioorganic Chemistry, Hans-Knöll-Straße 8, 07745 Jena, Germany
3
Department of Pharmaceutical Microbiology, Hans Knöll Institute, Friedrich Schiller University Jena, Winzerlaer Strasse 2, 07745 Jena, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Laurent Dufossé
J. Fungi 2022, 8(6), 555; https://doi.org/10.3390/jof8060555
Received: 22 April 2022 / Revised: 15 May 2022 / Accepted: 23 May 2022 / Published: 24 May 2022
(This article belongs to the Special Issue Edible and Medicinal Macrofungi)
Tricholoma vaccinum is an ectomycorrhizal basidiomycete with high host specificity. The slow-growing fungus is able to produce twenty sesquiterpenes, including α-barbatene, sativene, isocaryophyllene, α-cuprenene, β-cedrene, ß-copaene, 4-epi-α-acoradiene, and chamigrene in axenic culture. For the three major compounds, Δ6-protoilludene, β-barbatene, and an unidentified oxygenated sesquiterpene (m/z 218.18), changed production during co-cultivation with the ectomycorrhizal partner tree, Picea abies, could be shown with distinct dynamics. During the mycorrhizal growth of T. vaccinumP. abies, Δ6-protoilludene and the oxygenated sesquiterpene appeared at similar times, which warranted further studies of potential biosynthesis genes. In silico analyses identified a putative protoilludene synthesis gene, pie1, as being up-regulated in the mycorrhizal stage, in addition to the previously identified, co-regulated geosmin synthase, ges1. We therefore hypothesize that the sesquiterpene synthase pie1 has an important role during mycorrhization, through Δ6-protoilludene and/or its accompanied oxygenated sesquiterpene production. View Full-Text
Keywords: Tricholoma vaccinum; ectomycorrhiza; volatilome; sesquiterpene synthases Tricholoma vaccinum; ectomycorrhiza; volatilome; sesquiterpene synthases
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MDPI and ACS Style

Ezediokpu, M.N.; Krause, K.; Kunert, M.; Hoffmeister, D.; Boland, W.; Kothe, E. Ectomycorrhizal Influence on the Dynamics of Sesquiterpene Release by Tricholoma vaccinum. J. Fungi 2022, 8, 555. https://doi.org/10.3390/jof8060555

AMA Style

Ezediokpu MN, Krause K, Kunert M, Hoffmeister D, Boland W, Kothe E. Ectomycorrhizal Influence on the Dynamics of Sesquiterpene Release by Tricholoma vaccinum. Journal of Fungi. 2022; 8(6):555. https://doi.org/10.3390/jof8060555

Chicago/Turabian Style

Ezediokpu, Marycolette Ndidi, Katrin Krause, Maritta Kunert, Dirk Hoffmeister, Wilhelm Boland, and Erika Kothe. 2022. "Ectomycorrhizal Influence on the Dynamics of Sesquiterpene Release by Tricholoma vaccinum" Journal of Fungi 8, no. 6: 555. https://doi.org/10.3390/jof8060555

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