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Cantarel AAM, Signoret A, Gervaix J, Beligon C, Béraud C, Boisselet C, Creuzé des Châtelliers C, Defour P, Delort A, Lacroix E, Lobreau C, Louvez E, Marais C, Simonin M, Piola F. Biological inhibition of denitrification (BDI): an early plant strategy for Fallopia × bohemica seedling development. Ann Bot 2024; 133:533-546. [PMID: 37970962 PMCID: PMC11037488 DOI: 10.1093/aob/mcad174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 11/08/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND AND AIMS The successful plant Fallopia × bohemica presents interesting capacities for control of the soil nitrogen cycle at the adult stage, termed biological inhibition of denitrification (BDI). The BDI strategy allows the plant, via the production of secondary metabolites (procyanidins), to compete with the denitrifying microbial community and to divert nitrate from the soil for its benefit. In this study, we analysed whether seedlings of F. × bohemica can implement BDI at the seedling stage. We also determined whether soil nitrogen availability influences the implementation of BDI and seedling growth. METHODS We sowed achenes of F. × bohemica in soils representing a nitrogen gradient (six treatments) and harvested seedlings after 20 or 40 days of growth. The denitrification and related microbial communities (i.e. functional gene abundances of nirK and nirS), soil parameters (nitrate content and humidity) and plant performance (biomass, growth and root morphology) were determined. KEY RESULTS On soil without addition of nitrogen, BDI was observed after 20 days of growth, whereas a stimulation of denitrification was found after 40 days. The increase of soil N content had few effects on the activity and structure of the soil denitrifying community and on the plant biomasses or the relative growth rates. Correlations between plant and microbial parameters were observed after 20 days of growth, reflecting early and strong chemical interactions between plants and the denitrifying community, which decreased with plant growth after 40 days. CONCLUSIONS This study shows that an early BDI enhances the efficiency of nitrogen acquisition in the first weeks of growth, allowing for a conservative root strategy after 40 days. This switch to a conservative strategy involved resource storage, an altered allocation to above- and below-ground parts and an investment in fine roots. It now seems clear that this storage strategy starts at a very young age with early establishment of BDI, giving this clonal plant exceptional capacities for storage and multiplication.
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Affiliation(s)
- Amélie A M Cantarel
- Université Claude Bernard Lyon 1, Laboratoire d’Ecologie Microbienne LEM, UMR 5557 CNRS, UMR 1418 INRAE, VetAgro Sup, 69622 Villeurbanne, France
| | - Aymeric Signoret
- Université Claude Bernard Lyon 1, Laboratoire d’Ecologie Microbienne LEM, UMR 5557 CNRS, UMR 1418 INRAE, VetAgro Sup, 69622 Villeurbanne, France
- Université Claude Bernard Lyon 1, Laboratoire des Ecosystèmes et Hydosystèmes Naturels et Anthropisés LEHNA, ENTPE, UMR 5023 CNRS, 69622 Villeurbanne, France
| | - Jonathan Gervaix
- Université Claude Bernard Lyon 1, Laboratoire d’Ecologie Microbienne LEM, UMR 5557 CNRS, UMR 1418 INRAE, VetAgro Sup, 69622 Villeurbanne, France
| | - Chiquitta Beligon
- Université Claude Bernard Lyon 1, Laboratoire des Ecosystèmes et Hydosystèmes Naturels et Anthropisés LEHNA, ENTPE, UMR 5023 CNRS, 69622 Villeurbanne, France
| | - Cédric Béraud
- Université Claude Bernard Lyon 1, Laboratoire d’Ecologie Microbienne LEM, UMR 5557 CNRS, UMR 1418 INRAE, VetAgro Sup, 69622 Villeurbanne, France
- Université Claude Bernard Lyon 1, Laboratoire des Ecosystèmes et Hydosystèmes Naturels et Anthropisés LEHNA, ENTPE, UMR 5023 CNRS, 69622 Villeurbanne, France
| | - Christelle Boisselet
- Université Claude Bernard Lyon 1, Laboratoire des Ecosystèmes et Hydosystèmes Naturels et Anthropisés LEHNA, ENTPE, UMR 5023 CNRS, 69622 Villeurbanne, France
| | - Charline Creuzé des Châtelliers
- Université Claude Bernard Lyon 1, Laboratoire d’Ecologie Microbienne LEM, UMR 5557 CNRS, UMR 1418 INRAE, VetAgro Sup, 69622 Villeurbanne, France
| | - Pauline Defour
- Université Claude Bernard Lyon 1, Laboratoire d’Ecologie Microbienne LEM, UMR 5557 CNRS, UMR 1418 INRAE, VetAgro Sup, 69622 Villeurbanne, France
| | - Abigaïl Delort
- Université Claude Bernard Lyon 1, Laboratoire d’Ecologie Microbienne LEM, UMR 5557 CNRS, UMR 1418 INRAE, VetAgro Sup, 69622 Villeurbanne, France
| | - Elise Lacroix
- Université Claude Bernard Lyon 1, Plateforme ‘Serre et Chambres Climatiques’, FR BioEEnVis, Domaine scientifique de la DOUA, 69622 Villeurbanne, France
| | - Clément Lobreau
- Université Claude Bernard Lyon 1, Laboratoire d’Ecologie Microbienne LEM, UMR 5557 CNRS, UMR 1418 INRAE, VetAgro Sup, 69622 Villeurbanne, France
- Université Claude Bernard Lyon 1, Laboratoire des Ecosystèmes et Hydosystèmes Naturels et Anthropisés LEHNA, ENTPE, UMR 5023 CNRS, 69622 Villeurbanne, France
| | - Enzo Louvez
- Université Claude Bernard Lyon 1, Laboratoire d’Ecologie Microbienne LEM, UMR 5557 CNRS, UMR 1418 INRAE, VetAgro Sup, 69622 Villeurbanne, France
| | - Coralie Marais
- University of Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, Angers, France
| | - Marie Simonin
- University of Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, Angers, France
| | - Florence Piola
- Université Claude Bernard Lyon 1, Laboratoire des Ecosystèmes et Hydosystèmes Naturels et Anthropisés LEHNA, ENTPE, UMR 5023 CNRS, 69622 Villeurbanne, France
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