| Title: | Mycorrhiza-Tree-Herbivore Interactions: Alterations in Poplar Metabolome and Volatilome |
| Author(s): | Sivaprakasam Padmanaban PB; Rosenkranz M; Zhu P; Kaling M; Schmidt A; Schmitt-Kopplin P; Polle A; Schnitzler JP; |
| Address: | "Research Unit Environmental Simulation, Institute of Biochemical Plant Pathology, Helmholtz Munich, 85764 Neuherberg, Germany. Department of Forest Botany and Tree Physiology, University of Gottingen, 37077 Gottingen, Germany. Research Unit Analytical BioGeoChemistry, Helmholtz Munich, 85764 Neuherberg, Germany. Chair of Analytical Food Chemistry, TUM School of Life Sciences, Technical University of Munich, Maximus-von-Imhof-Forum 2, 85354 Freising, Germany" |
| ISSN/ISBN: | 2218-1989 (Print) 2218-1989 (Electronic) 2218-1989 (Linking) |
| Abstract: | "Plants are continuously interacting with other organisms to optimize their performance in a changing environment. Mycorrhization is known to affect the plant growth and nutrient status, but it also can lead to adjusted plant defense and alter interactions with other trophic levels. Here, we studied the effect of Laccaria bicolor-mycorrhization on the poplar (Populus x canescens) metabolome and volatilome on trees with and without a poplar leaf beetle (Chrysomela populi) infestation. We analyzed the leaf and root metabolomes employing liquid chromatography-mass spectrometry, and the leaf volatilome employing headspace sorptive extraction combined with gas-chromatography-mass spectrometry. Mycorrhization caused distinct metabolic adjustments in roots, young/infested leaves and old/not directly infested leaves. Mycorrhization adjusted the lipid composition, the abundance of peptides and, especially upon herbivory, the level of various phenolic compounds. The greatest change in leaf volatile organic compound (VOC) emissions occurred four to eight days following the beetle infestation. Together, these results prove that mycorrhization affects the whole plant metabolome and may influence poplar aboveground interactions. The herbivores and the mycorrhizal fungi interact with each other indirectly through a common host plant, a result that emphasizes the importance of community approach in chemical ecology" |
| Keywords: | Chrysomela populi Laccaria bicolor ectomycorrhizal fungi leaf beetles metabolomics poplar signaling systemic responses tritrophic interactions volatile organic compounds; |
| Notes: | "PubMed-not-MEDLINESivaprakasam Padmanaban, Prasath Balaji Rosenkranz, Maaria Zhu, Peiyuan Kaling, Moritz Schmidt, Anna Schmitt-Kopplin, Philippe Polle, Andrea Schnitzler, Jorg-Peter eng RO5311/4-1/Deutsche Forschungsgemeinschaft/ PO361/20-2/Deutsche Forschungsgemeinschaft/ SCHN653/5-2/Deutsche Forschungsgemeinschaft/ Switzerland 2022/02/26 Metabolites. 2022 Jan 19; 12(2):93. doi: 10.3390/metabo12020093" |
