TY - JOUR AU - Gargallo-Garriga, A. AU - Sardans, J. AU - Granda, V. AU - LlusiüJ. AU - Peguero, G. AU - Asensio, D. AU - Ogaya, R. AU - Urbina, I. AU - Van Langenhove, L. AU - Verryckt, L.T. AU - Chave, J. AU - Courtois, E.A. AU - Stahl, C. AU - Grau, O. AU - Klem, K. AU - Urban, O. AU - Janssens, I.A. AU - Peñuelas, J. PY - 2020// TI - Different "metabolomic niches" of the highly diverse tree species of the French Guiana rainforests T2 - Sci. Rep. JO - Scientific Reports SP - 6937 VL - 10 PB - Nature Research KW - article KW - ecological niche KW - French Guiana KW - metabolome KW - plant leaf KW - rainy season KW - reproduction KW - stress KW - tropical rain forest N2 - 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. © 2020, The Author(s). SN - 20452322 (Issn) UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083835846&doi=10.1038%2fs41598-020-63891-y&partnerID=40&md5=375a07783eff6a482740bb39144f75bf L1 - http://php.ecofog.gf/refbase/files/gargallo-garriga/2020/930_Gargallo-Garriga_etal2020.pdf UR - http://dx.doi.org/10.1038/s41598-020-63891-y N1 - exported from refbase (http://php.ecofog.gf/refbase/show.php?record=930), last updated on Thu, 07 May 2020 09:53:34 -0300 ID - Gargallo-Garriga_etal2020 ER -