31P-NMR metabolomics revealed species-specific use of phosphorous in trees of a French Guiana rainforest

Gargallo-Garriga Albert, Sardans Jordi, LLusià Joan, Peguero Guillermo, Asensio Dolores, Ogaya Romà, Urbina Ifigenia, Van Langenhove Leandro, Verryckt Lore T., Courtois Elodie A., Stahl Clément, Grau Oriol, Urban Otmar, Janssens Ivan A., Nolis Pau, Pérez-Trujillo Miriam, Parella Teodor, Peñuelas Josep. 2020. 31P-NMR metabolomics revealed species-specific use of phosphorous in trees of a French Guiana rainforest. Molecules, 25 (17), n.spéc. NMR-Based Metabolomics:3960, 12 p.

Quartile : Q2, Sujet : BIOCHEMISTRY & MOLECULAR BIOLOGY / Quartile : Q2, Sujet : CHEMISTRY, MULTIDISCIPLINARY

Résumé : Productivity of tropical lowland moist forests is often limited by availability and functional allocation of phosphorus (P) that drives competition among tree species and becomes a key factor in determining forestall community diversity. We used non-target 31P-NMR metabolic profiling to study the foliar P-metabolism of trees of a French Guiana rainforest. The objective was to test the hypotheses that P-use is species-specific, and that species diversity relates to species P-use and concentrations of P-containing compounds, including inorganic phosphates, orthophosphate monoesters and diesters, phosphonates and organic polyphosphates. We found that tree species explained the 59% of variance in 31P-NMR metabolite profiling of leaves. A principal component analysis showed that tree species were separated along PC 1 and PC 2 of detected P-containing compounds, which represented a continuum going from high concentrations of metabolites related to non-active P and P-storage, low total P concentrations and high N:P ratios, to high concentrations of P-containing metabolites related to energy and anabolic metabolism, high total P concentrations and low N:P ratios. These results highlight the species-specific use of P and the existence of species-specific P-use niches that are driven by the distinct species-specific position in a continuum in the P-allocation from P-storage compounds to P-containing molecules related to energy and anabolic metabolism.

Mots-clés Agrovoc : forêt tropicale humide, polyphosphate, compétition biologique, forêt tropicale, anabolisme, anabolisant, arbre forestier

Mots-clés géographiques Agrovoc : Guyane française, France

Mots-clés libres : 31P-NMR metabolic profiling, Iceland, Tropical lowland, P-containing compounds, Species-specific P-use niches

Agences de financement européennes : European Research Council

Agences de financement hors UE : Gobierno de España, Generalitat de Catalunya, Agence Nationale de la Recherche

Programme de financement européen : FP7

Projets sur financement : (EU) Effects of phosphorus limitations on Life, Earth system and Society, (EU) Drought impacts on plant-soil interactions and ecosystem stability, (FRA) CEnter of the study of Biodiversity in Amazonia, (FRA) ANAEE-Services

Auteurs et affiliations

• Gargallo-Garriga Albert, CREAF (ESP) - auteur correspondant
• Sardans Jordi, CREAF (ESP)
• LLusià Joan, CREAF (ESP)
• Peguero Guillermo, CREAF (ESP)
• Asensio Dolores, CREAF (ESP)
• Ogaya Romà, CREAF (ESP)
• Urbina Ifigenia, CREAF (ESP)
• Van Langenhove Leandro, Université d'Anvers (BEL)
• Verryckt Lore T., Université d'Anvers (BEL)
• Courtois Elodie A., Université de Guyane (GUF)
• Stahl Clément, INRA (GUF)
• Grau Oriol, CIRAD-ES-UMR Ecofog (GUF)
• Urban Otmar, Czech Academy of Sciences (CZE)
• Janssens Ivan A., Université d'Anvers (BEL)
• Nolis Pau, UAB (ESP)
• Pérez-Trujillo Miriam, UAB (ESP)
• Parella Teodor, UAB (ESP)
• Peñuelas Josep, CREAF (ESP)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/614751/)

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