Caggìa, Veronica ; Wälchli, Jan ; Deslandes-Hérold, Gabriel ; Mateo, Pierre ; Robert, Christelle A. M. ; Guan, Hang ; Bigalke, Moritz ; Spielvogel, Sandra ; Mestrot, Adrien ; Schlaeppi, Klaus ; Erb, Matthias (2024)
Root-exuded specialized metabolites reduce arsenic toxicity in maize.
In: Proceedings of the National Academy of Sciences of the United States of America (PNAS), 121 (13)
doi: 10.1073/pnas.2314261121
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
By releasing specialized metabolites, plants modify their environment. Whether and how specialized metabolites protect plants against toxic levels of trace elements is not well understood. We evaluated whether benzoxazinoids, which are released into the soil by major cereals, can confer protection against arsenic toxicity. Benzoxazinoid-producing maize plants performed better in arsenic-contaminated soils than benzoxazinoid-deficient mutants in the greenhouse and the field. Adding benzoxazinoids to the soil restored the protective effect, and the effect persisted to the next crop generation via positive plant–soil feedback. Arsenate levels in the soil and total arsenic levels in the roots were lower in the presence of benzoxazinoids. Thus, the protective effect of benzoxazinoids is likely soil-mediated and includes changes in soil arsenic speciation and root accumulation. We conclude that exuded specialized metabolites can enhance protection against toxic trace elements via soil-mediated processes and may thereby stabilize crop productivity in polluted agroecosystems.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Caggìa, Veronica ; Wälchli, Jan ; Deslandes-Hérold, Gabriel ; Mateo, Pierre ; Robert, Christelle A. M. ; Guan, Hang ; Bigalke, Moritz ; Spielvogel, Sandra ; Mestrot, Adrien ; Schlaeppi, Klaus ; Erb, Matthias |
| Art des Eintrags: | Bibliographie |
| Titel: | Root-exuded specialized metabolites reduce arsenic toxicity in maize |
| Sprache: | Englisch |
| Publikationsjahr: | 2024 |
| Ort: | Washington, DC |
| Verlag: | National Academy of Sciences |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Proceedings of the National Academy of Sciences of the United States of America (PNAS) |
| Jahrgang/Volume einer Zeitschrift: | 121 |
| (Heft-)Nummer: | 13 |
| Kollation: | 10 Seiten |
| DOI: | 10.1073/pnas.2314261121 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | By releasing specialized metabolites, plants modify their environment. Whether and how specialized metabolites protect plants against toxic levels of trace elements is not well understood. We evaluated whether benzoxazinoids, which are released into the soil by major cereals, can confer protection against arsenic toxicity. Benzoxazinoid-producing maize plants performed better in arsenic-contaminated soils than benzoxazinoid-deficient mutants in the greenhouse and the field. Adding benzoxazinoids to the soil restored the protective effect, and the effect persisted to the next crop generation via positive plant–soil feedback. Arsenate levels in the soil and total arsenic levels in the roots were lower in the presence of benzoxazinoids. Thus, the protective effect of benzoxazinoids is likely soil-mediated and includes changes in soil arsenic speciation and root accumulation. We conclude that exuded specialized metabolites can enhance protection against toxic trace elements via soil-mediated processes and may thereby stabilize crop productivity in polluted agroecosystems. |
| Freie Schlagworte: | arsenic, secondary metabolites, arsenic tolerance, W22 wild-type, bx1 mutant |
| ID-Nummer: | Artikel-ID: e2314261121 |
| 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: | 01 Aug 2024 09:34 |
| Letzte Änderung: | 01 Aug 2024 10:18 |
| PPN: | 520266226 |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Root-exuded specialized metabolites reduce arsenic toxicity in maize. (deposited 31 Jul 2024 13:19)
- Root-exuded specialized metabolites reduce arsenic toxicity in maize. (deposited 01 Aug 2024 09:34) [Gegenwärtig angezeigt]
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