Research output per year
Research output per year
Changfeng Zhang, Marcel G.A. van der Heijden, Bethany K. Dodds, Thi Bich Nguyen, Jelle Spooren, Alain Valzano-Held, Marco Cosme, Roeland L. Berendsen*
Research output: Contribution to journal › Article › Academic › peer-review
Background: Plant microbiomes play crucial roles in nutrient cycling and plant growth, and are shaped by a complex interplay between plants, microbes, and the environment. The role of bacteria as mediators of the 400-million-year-old partnership between the majority of land plants and, arbuscular mycorrhizal (AM) fungi is still poorly understood. Here, we test whether AM hyphae-associated bacteria influence the success of the AM symbiosis. Results: Using partitioned microcosms containing field soil, we discovered that AM hyphae and roots selectively assemble their own microbiome from the surrounding soil. In two independent experiments, we identified several bacterial genera, including Devosia, that are consistently enriched on AM hyphae. Subsequently, we isolated 144 pure bacterial isolates from a mycorrhiza-rich sample of extraradical hyphae and isolated Devosia sp. ZB163 as root and hyphal colonizer. We show that this AM-associated bacterium synergistically acts with mycorrhiza on the plant root to strongly promote plant growth, nitrogen uptake, and mycorrhization. Conclusions: Our results highlight that AM fungi do not function in isolation and that the plant-mycorrhiza symbiont can recruit beneficial bacteria that support the symbiosis. [MediaObject not available: see fulltext.]
Original language | English |
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Article number | 13 |
Number of pages | 22 |
Journal | Microbiome |
Volume | 12 |
Issue number | 1 |
DOIs | |
Publication status | Published - 19 Jan 2024 |
We thank Utrecht Sequencing Facility for providing sequencing service and data. We are grateful to Dr. Claire E. Stanley from Imperial College London, for providing suggestions on hyphal bacteria isolation. We thank Richard van Logtestijn and Rob Broekman from Vrije Universiteit Amsterdam for determining the N and P concentrations on Prunella leaves. We also thank Gijs Selten from Universiteit Utrecht for assembling the Devosia genome.
Funders | Funder number |
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China Scholarship Council |
Research output: Contribution to journal › Comment/Letter to the editor › Academic › peer-review