Different "metabolomic niches" of the highly diverse tree species of the French Guiana rainforests
Gargallo-Garriga, Albert (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Sardans i Galobart, Jordi (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Granda, Víctor (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Llusia, Joan (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Peguero, Guille (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Asensio, Dolores (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Ogaya Inurrigarro, Romà (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Urbina Barreto, Ifigenia (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Van Langenhove, Leandro (University of Antwerp. Department of Biology)
Verryckt, Lore (University of Antwerp. Department of Biology)
Chave, Jerome (Laboratoire Evolution et Diversité Biologique)
Courtois, Elodie A. (University of Antwerp. Department of Biology)
Stahl, Clément (INRA. EcoFoG)
Grau Fernández, Oriol (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Klem, Karel (Czech Academy of Sciences. Global Change Research Institute)
Urban, Otmar (Global Change Research Institute CAS)
Janssens, Ivan (University of Antwerp. Department of Biology)
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)

Date:	2020
Abstract:	Tropical rainforests harbor a particularly high plant diversity. We hypothesize that potential causes underlying this high diversity should be linked to distinct overall functionality (defense and growth allocation, anti-stress mechanisms, reproduction) among the different sympatric taxa. In this study we tested the hypothesis of the existence of a metabolomic niche related to a species-specific differential use and allocation of metabolites. We tested this hypothesis by comparing leaf metabolomic profiles of 54 species in two rainforests of French Guiana. Species identity explained most of the variation in the metabolome, with a species-specific metabolomic profile across dry and wet seasons. In addition to this "homeostatic" species-specific metabolomic profile significantly linked to phylogenetic distances, also part of the variance (flexibility) of the metabolomic profile was explained by season within a single species. Our results support the hypothesis of the high diversity in tropical forest being related to a species-specific metabolomic niche and highlight ecometabolomics as a tool to identify this species functional diversity related and consistent with the ecological niche theory.
Grants:	European Commission 610028 European Commission 626234 Ministerio de Economía y Competitividad CGL2016-79835-P Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1005
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Community ecology ; Molecular biology ; Molecular ecology
Published in:	Scientific reports, Vol. 10 (April 2020) , art. 6937, ISSN 2045-2322

DOI: 10.1038/s41598-020-63891-y
PMID: 32332903

10 p, 1.8 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
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