Cadot, Selma ; Guan, Hang ; Bigalke, Moritz ; Walser, Jean-Claude ; Jander, Georg ; Erb, Matthias ; Heijden, Marcel G. A. van der ; Schlaeppi, Klaus (2022)
Specific and conserved patterns of microbiota-structuring by maize benzoxazinoids in the field.
In: Microbiome, 9
doi: 10.26083/tuprints-00022543
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
Background
Plants influence their root and rhizosphere microbial communities through the secretion of root exudates. However, how specific classes of root exudate compounds impact the assembly of root-associated microbiotas is not well understood, especially not under realistic field conditions. Maize roots secrete benzoxazinoids (BXs), a class of indole-derived defense compounds, and thereby impact the assembly of their microbiota. Here, we investigated the broader impacts of BX exudation on root and rhizosphere microbiotas of adult maize plants grown under natural conditions at different field locations in Europe and the USA. We examined the microbiotas of BX-producing and multiple BX-defective lines in two genetic backgrounds across three soils with different properties.
Results
Our analysis showed that BX secretion affected the community composition of the rhizosphere and root microbiota, with the most pronounced effects observed for root fungi. The impact of BX exudation was at least as strong as the genetic background, suggesting that BX exudation is a key trait by which maize structures its associated microbiota. BX-producing plants were not consistently enriching microbial lineages across the three field experiments. However, BX exudation consistently depleted Flavobacteriaceae and Comamonadaceae and enriched various potential plant pathogenic fungi in the roots across the different environments.
Conclusions
These findings reveal that BXs have a selective impact on root and rhizosphere microbiota composition across different conditions. Taken together, this study identifies the BX pathway as an interesting breeding target to manipulate plant-microbiome interactions.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Cadot, Selma ; Guan, Hang ; Bigalke, Moritz ; Walser, Jean-Claude ; Jander, Georg ; Erb, Matthias ; Heijden, Marcel G. A. van der ; Schlaeppi, Klaus |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Specific and conserved patterns of microbiota-structuring by maize benzoxazinoids in the field |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Darmstadt |
| Verlag: | Springer BMC |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Microbiome |
| Jahrgang/Volume einer Zeitschrift: | 9 |
| Kollation: | 19 Seiten |
| DOI: | 10.26083/tuprints-00022543 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/22543 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | Background Plants influence their root and rhizosphere microbial communities through the secretion of root exudates. However, how specific classes of root exudate compounds impact the assembly of root-associated microbiotas is not well understood, especially not under realistic field conditions. Maize roots secrete benzoxazinoids (BXs), a class of indole-derived defense compounds, and thereby impact the assembly of their microbiota. Here, we investigated the broader impacts of BX exudation on root and rhizosphere microbiotas of adult maize plants grown under natural conditions at different field locations in Europe and the USA. We examined the microbiotas of BX-producing and multiple BX-defective lines in two genetic backgrounds across three soils with different properties. Results Our analysis showed that BX secretion affected the community composition of the rhizosphere and root microbiota, with the most pronounced effects observed for root fungi. The impact of BX exudation was at least as strong as the genetic background, suggesting that BX exudation is a key trait by which maize structures its associated microbiota. BX-producing plants were not consistently enriching microbial lineages across the three field experiments. However, BX exudation consistently depleted Flavobacteriaceae and Comamonadaceae and enriched various potential plant pathogenic fungi in the roots across the different environments. Conclusions These findings reveal that BXs have a selective impact on root and rhizosphere microbiota composition across different conditions. Taken together, this study identifies the BX pathway as an interesting breeding target to manipulate plant-microbiome interactions. |
| Freie Schlagworte: | Zea mays, Root exudates, Benzoxazinoids, Rhizosphere, Root microbiota |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-225436 |
| Zusätzliche Informationen: | Supplementary Material: Additional File 1: https://doi.org/10.6084/m9.figshare.14558858.v1 Additional File 2: https://doi.org/10.6084/m9.figshare.14558861.v1 Additional File 3: https://doi.org/10.6084/m9.figshare.14558864.v1 Additional File 4: https://doi.org/10.6084/m9.figshare.14558867.v1 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften > Fachgebiet Bodenmineralogie und Bodenchemie |
| Hinterlegungsdatum: | 14 Dez 2022 13:54 |
| Letzte Änderung: | 15 Dez 2022 06:35 |
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