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Truffle volatiles inhibit growth and induce an oxidative burst in Arabidopsis thaliana
Open accessAbstract
The function of fungal volatiles in fungal-plant interactions is poorly understood. The aim here was to address this lack of knowledge, focusing on truffles, ectomycorrhizal fungi that are highly appreciated for their aroma. The effect of volatiles released by truffles was tested on Arabidopsis thaliana in a closed chamber bioassay. The volatiles produced by Tuber melanosporum, Tuber indicum and Tuber borchii fruiting bodies inhibited A. thaliana in terms of root length and cotyledon leaf size, and in some cases induced a bleaching of the seedlings, thus indicating toxicity. Ten synthetic volatiles were tested in a similar way. The strongest inhibitory effect was observed with C(8) molecules such as 1-octen-3-ol, an alcohol with a typical 'fungal smell'. Two of these C(8) compounds were further tested to investigate their mechanism of action. 1-Octen-3-ol and trans-2-octenal induced an oxidative burst (hydrogen peroxide, H(2)O(2)) in the A. thaliana leaves as well as a strong increase in the activities of three reactive oxygen species (ROS)-scavenging enzymes. These results demonstrate that fungal volatiles inhibit the development of A. thaliana and modify its oxidative metabolism. Even though limited to laboratory observations, these results indicate the presence of a hitherto unknown function of fungal volatiles as molecules that mediate fungal-plant interactions.
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Cited by
Chemical diversity of microbial volatiles and their potential for plant growth and productivity
Kanchiswamy, C. N., Malnoy, M., & Maffei, M. E. (2015) · Frontiers in Plant Science · doi:10.3389/fpls.2015.00151 · Cited by 488
Biogenic volatile emissions from the soil
PEÑUELAS, J., ASENSIO, D., THOLL, D., WENKE, K., ROSENKRANZ, M., PIECHULLA, B., & SCHNITZLER, J. P. (2014) · Plant, Cell & Environment · doi:10.1111/pce.12340 · Cited by 414
Blom, D., Fabbri, C., Connor, E. C., Schiestl, F. P., Klauser, D. R., Boller, T., Eberl, L., & Weisskopf, L. (2011) · Environmental Microbiology · doi:10.1111/j.1462-2920.2011.02582.x · Cited by 384
Volatile signalling by sesquiterpenes from ectomycorrhizal fungi reprogrammes root architecture
Ditengou, F. A., Müller, A., Rosenkranz, M., Felten, J., Lasok, H., van Doorn, M. M., Legué, V., Palme, K., Schnitzler, J.-P., & Polle, A. (2015) · Nature Communications · doi:10.1038/ncomms7279 · Cited by 290
Meldau, D. G., Meldau, S., Hoang, L. H., Underberg, S., Wunsche, H., & Baldwin, I. T. (2013) · The Plant Cell · doi:10.1105/tpc.113.114744 · Cited by 284
Metadata
- Authors
- Splivallo, R., Novero, M., Bertea, C. M., Bossi, S., & Bonfante, P.
- Venue
- New Phytologist
- Publisher
- Wiley
- Published
- 2007-06-21
- Volume
- 175
- Issue
- 3
- Pages
- 417-424
- ISSN
- 0028-646X (ISSN-L)
- 1469-8137
- OpenAlex
- W2093597831
- Cited by
- 183
- References
- 0
- FWCI
- 8.86
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Splivallo, R., Novero, M., Bertea, C. M., Bossi, S., & Bonfante, P. (2007). Truffle volatiles inhibit growth and induce an oxidative burst in Arabidopsis thaliana. New Phytologist. https://doi.org/10.1111/j.1469-8137.2007.02141.x
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