Web of Science: 2 cites, Scopus: 3 cites, Google Scholar: cites,
Tree species and epiphyte taxa determine the "metabolomic niche" of canopy suspended soils in a species-rich lowland tropical rainforest
Gargallo-Garriga, Albert (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Sardans i Galobart, Jordi (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Alrefaei, Abdulwahed Fahad (King Saud University. Department of Zoology)
Klem, Karel (Czech Academy of Sciences. Global Change Research Institute)
Fuchslueger, Lucia (University of Antwerpen. Department of Biology)
Ramírez-Rojas, Irene (University of Antwerp. Department of Biology)
Donald, Julian (University of Exeter. Centre for Ecology and Conservation)
Leroy, Celine (Université des Antilles. Université de Guyane)
Van Langenhove, Leandro (University of Antwerp. Department of Biology)
Verbruggen, Erik (University of Antwerp. Department of Biology)
Janssens, Ivan (University of Antwerp. Department of Biology)
Urban, Otmar (Czech Academy of Sciences. Global Change Research Institute)
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)

Data: 2021
Resum: Tropical forests are biodiversity hotspots, but it is not well understood how this diversity is structured and maintained. One hypothesis rests on the generation of a range of metabolic niches, with varied composition, supporting a high species diversity. Characterizing soil metabolomes can reveal fine-scale differences in composition and potentially help explain variation across these habitats. In particular, little is known about canopy soils, which are unique habitats that are likely to be sources of additional biodiversity and biogeochemical cycling in tropical forests. We studied the effects of diverse tree species and epiphytes on soil metabolomic profiles of forest floor and canopy suspended soils in a French Guianese rainforest. We found that the metabolomic profiles of canopy suspended soils were distinct from those of forest floor soils, differing between epiphyte-associated and non-epiphyte suspended soils, and the metabolomic profiles of suspended soils varied with host tree species, regardless of association with epiphyte. Thus, tree species is a key driver of rainforest suspended soil metabolomics. We found greater abundance of metabolites in suspended soils, particularly in groups associated with plants, such as phenolic compounds, and with metabolic pathways related to amino acids, nucleotides, and energy metabolism, due to the greater relative proportion of tree and epiphyte organic material derived from litter and root exudates, indicating a strong legacy of parent biological material. Our study provides evidence for the role of tree and epiphyte species in canopy soil metabolomic composition and in maintaining the high levels of soil metabolome diversity in this tropical rainforest. It is likely that a wide array of canopy microsite-level environmental conditions, which reflect interactions between trees and epiphytes, increase the microscale diversity in suspended soil metabolomes.
Ajuts: Agencia Estatal de Investigación PID2019-110521GB-I00
Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1005
European Commission 610028
European Commission 847693
Drets: 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. Creative Commons
Llengua: Anglès
Document: Article ; recerca ; Versió publicada
Matèria: Bacteria ; Canopy soils ; Epiphyte ; French Guiana ; Metabolomics
Publicat a: Metabolites, Vol. 11, Issue 11 (November 2021) , art. 718, ISSN 2218-1989

DOI: 10.3390/metabo11110718
PMID: 34822376

16 p, 8.8 MB

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 Registre creat el 2022-02-01, darrera modificació el 2024-02-07

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