Steinauer, Katja; Thakur, Madhav P; Emilia Hannula, S; Weinhold, Alexander; Uthe, Henriette; van Dam, Nicole M; Martijn Bezemer, T (2023). Root exudates and rhizosphere microbiomes jointly determine temporal shifts in plant-soil feedbacks. Plant, cell & environment, 46(6), pp. 1885-1899. Wiley 10.1111/pce.14570
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Plant_Cell_Environment_-_2023_-_Steinauer_-_Root_exudates_and_rhizosphere_microbiomes_jointly_determine_temporal_shifts.pdf - Accepted Version Available under License Publisher holds Copyright. Download (946kB) | Preview |
Plants influence numerous soil biotic factors that can alter the performance of later growing plants - defined as plant-soil feedback (PSF). Here, we investigate whether PSF effects are linked with the temporal changes in root exudate diversity and the rhizosphere microbiome of two common grassland species (Holcus lanatus and Jacobaea vulgaris). Both plant species were grown separately establishing conspecific and heterospecific soils. In the feedback phase, we determined plant biomass, measured root exudate composition, and characterized rhizosphere microbial communities weekly (eight time points). Over time, we found a strong negative conspecific PSF on J. vulgaris in its early growth phase which changed into a neutral PSF, whereas H. lanatus exhibited a more persistent negative PSF. Root exudate diversity increased considerably over time for both plant species. Rhizosphere microbial communities were distinct in conspecific and heterospecific soils and showed strong temporal patterns. Bacterial communities converged over time. Using path-models, PSF effects could be linked to the temporal dynamics of root exudate diversity, whereby shifts in rhizosphere microbial diversity contributed to temporal variation in PSF to a lesser extent. Our results highlight the importance of root exudates and rhizosphere microbial communities in driving temporal changes in the strength of PSF effects. This article is protected by copyright. All rights reserved.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) 08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Biotic Interactions 08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) |
UniBE Contributor: |
Steinauer, Katja, Thakur, Madhav Prakash |
Subjects: |
500 Science > 570 Life sciences; biology 500 Science > 580 Plants (Botany) |
ISSN: |
1365-3040 |
Publisher: |
Wiley |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
20 Feb 2023 10:22 |
Last Modified: |
18 Feb 2024 00:25 |
Publisher DOI: |
10.1111/pce.14570 |
PubMed ID: |
36794528 |
Uncontrolled Keywords: |
ecometabolomics illumina sequencing soil bacteria and fungi structural equation modelling |
BORIS DOI: |
10.48350/178892 |
URI: |
https://boris.unibe.ch/id/eprint/178892 |
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