Semi-polar root exudates in natural grassland communities

Research output: Journal contributionsJournal articlesResearchpeer-review

Authors

  • Sophie Dietz
  • Katharina Herz
  • Stefanie Döll
  • Sylvia Haider
  • Ute Jandt
  • Helge Bruelheide
  • Dierk Scheel

In the rhizosphere, plants are exposed to a multitude of different biotic and abiotic factors, to which they respond by exuding a wide range of secondary root metabolites. So far, it has been unknown to which degree root exudate composition is species-specific and is affected by land use, the local impact and local neighborhood under field conditions. In this study, root exudates of 10 common grassland species were analyzed, each five of forbs and grasses, in the German Biodiversity Exploratories using a combined phytometer and untargeted liquid chromatography-mass spectrometry (LC-MS) approach. Redundancy analysis and hierarchical clustering revealed a large set of semi-polar metabolites common to all species in addition to species-specific metabolites. Chemical richness and exudate composition revealed that forbs, such as Plantago lanceolata and Galium species, exuded more species-specific metabolites than grasses. Grasses instead were primarily affected by environmental conditions. In both forbs and grasses, plant functional traits had only a minor impact on plant root exudation patterns. Overall, our results demonstrate the feasibility of obtaining and untargeted profiling of semi-polar metabolites under field condition and allow a deeper view in the exudation of plants in a natural grassland community.

Original languageEnglish
JournalEcology and Evolution
Volume9
Issue number10
Pages (from-to)5526-5541
Number of pages16
ISSN2045-7758
DOIs
Publication statusPublished - 01.05.2019
Externally publishedYes

Bibliographical note

Funding Information:
We also thank Eva Breitschwerdt for collecting the seeds and her advice in selecting the plots. We thank all helpers who participated in the field work as well as during the preparation of the phytometers: Mathias Baudis, Eva Breitschwerdt, Lucie Gack, Anne-Sophie Gimpel, Maria Köhler, Ines Lassowskat, Mathias Meyer, Sebastian Palm, Franziska Patzold, Isa Plath, Tobias Proß, Ina Reichelt, Jana Schulze, Maria Sporbert, Ricardo SchD?ps, Selma Gomes Vieira and Anja Zeuner. We are indebted to the helpers André Dietz, Siska Herklotz, and Sylvia Krüger for their participation in acquiring metabolomics data. We further thank Hendrik Treutler for providing MetFamily as metabolite family classification tool. We also thank Steffen Neumann for his support in bioinformatic services. The work has been funded by the DFG Priority Program 1374 Infrastructure‐Biodiversity‐Exploratories [Project BE LOW, SCHE 235/16-3 and BR 1698/11-3]. Field work permits were issued by the responsible state environmental offices of Baden‐Württemberg, ThD?ringen, and Brandenburg [according to § 72 BbgNatSchG].

Publisher Copyright:
© 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.

DOI

Recently viewed

Publications

  1. »CO2 causes a hole in the atmosphere« Using laypeople’s conceptions as a starting point to communicate climate change
  2. ETL ensembles for chunking, NER and SRL
  3. Time and Income Poverty – An Interdependent Multidimensional Poverty Approach with German Time Use Diary Data
  4. Criticality and Values in Digital Transformation Research: Insights from a Workshop
  5. Commitment Strategies for Sustainability
  6. The Weinberg-Salam Model of Electroweak Interactions
  7. Fostering pre-service teachers’ knowledge of ‘teaching games for understanding’ via video-based vs. text-based teaching examples
  8. Plants, Androids and Operators
  9. Visualizing stakeholders’ willingness for collective action in participatory scenario planning
  10. Action theory
  11. Time Use and Time Budgets
  12. Direct measurement of cognitive load in multimedia learning
  13. No need for new natural gas pipelines and LNG terminalsin Europe
  14. Das Problem der Unbestimmtheit des Rechts
  15. Effect of salinity-changing rates on filtration activity of mussels from two sites within the Baltic Mytilus hybrid zone
  16. Politics after Networks
  17. Leaf Nutritional Content, Tree Richness, and Season Shape the Caterpillar Functional Trait Composition Hosted by Trees
  18. Step back from the forest and step up to the Bonn Challenge
  19. Intermediate `time-spaces' - The rediscovery of transition in spatial planning and environmental planning
  20. The role of human resource practices for including persons with disabilities in the workforce
  21. Genetically based differentiation in growth of multiple non-native plant species along a steep environmental gradient
  22. Watch out, pothole! Featuring Road Damage Detection in an End-to-end System for Autonomous Driving
  23. Negotiation complexity
  24. Exploring the motivations of protesters in contingent valuation
  25. Modelling and simulation of dynamic microstructure evolution of aluminium alloys during thermomechanically coupled extrusion process
  26. Automated text analyses of sustainability & integrated reporting.
  27. Learning to collaborate while collaborating
  28. External rotation of the auditor
  29. Local levers for change
  30. Three schools of transformation thinking
  31. Depoliticising EU migration policies
  32. Combined experimental–numerical study on residual stresses induced by a single impact as elementary process of mechanical peening
  33. Philosophie in Metropolen?
  34. Søren Kierkegaard in deutscher Sprache
  35. Thermodynamic description of reactions between Mg and CaO
  36. Conceptual frameworks and methods for advancing invasion ecology
  37. Das Wahre im Künstlichen
  38. Responsibility and environment
  39. Relative and absolute scarcity of biodiversity
  40. Altruism and egoism of the social planner in a dynamic context
  41. Variable annuities and the option to seek risk
  42. Differential Steering System for Vehicular Yaw Tracking Motion with Help of Sliding Mode Control