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Article

Insights into the Metabolome of the Cyanobacterium Leibleinia gracilis from the Lagoon of Tahiti and First Inspection of Its Variability

1
Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland
2
University of French Polynesia, UMR Ecosystèmes Insulaires Océaniens, LabEx CORAIL, BP6570, Faa’a, 98702 Tahiti, French Polynesia
*
Authors to whom correspondence should be addressed.
Metabolites 2020, 10(5), 215; https://doi.org/10.3390/metabo10050215
Received: 20 April 2020 / Revised: 18 May 2020 / Accepted: 21 May 2020 / Published: 24 May 2020
(This article belongs to the Special Issue Metabolomics in Chemical Ecology)
Cyanobacteria are known to produce a large diversity of specialized metabolites that can cause severe (eco)toxicological effects. In the lagoon of Tahiti, the benthic cyanobacterium Leibleinia gracilis is commonly found overgrowing the proliferative macroalga Turbinaria ornata or dead branching corals. The specialized metabolome of the cyanobacterium L. gracilis was therefore investigated together with its variability on both substrates and changes in environmental parameters. For the study of the metabolome variability, replicates of L. gracilis were collected in the same location of the lagoon of Tahiti before and after a raining event, both on dead corals and on T. ornata. The variability in the metabolome was inferred from a comparative non-targeted metabolomic using high resolution mass spectrometry (MS) data and a molecular network analysis built through MS/MS analyses. Oxidized fatty acid derivatives including the unusual 11-oxopalmitelaidic acid were found as major constituents of the specialized metabolome of this species. Significant variations in the metabolome of the cyanobacteria were observed, being more important with a change in environmental factors. Erucamide was found to be the main chemical marker highly present when the cyanobacterium grows on the macroalga. This study highlights the importance of combined approaches in metabolomics and molecular networks to inspect the variability in the metabolome of cyanobacteria with applications for ecological questions. View Full-Text
Keywords: cyanobacteria; Leibleinia; comparative metabolomic; molecular network; Tahiti; fatty acids cyanobacteria; Leibleinia; comparative metabolomic; molecular network; Tahiti; fatty acids
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MDPI and ACS Style

Solanki, H.; Pierdet, M.; Thomas, O.P.; Zubia, M. Insights into the Metabolome of the Cyanobacterium Leibleinia gracilis from the Lagoon of Tahiti and First Inspection of Its Variability. Metabolites 2020, 10, 215. https://doi.org/10.3390/metabo10050215

AMA Style

Solanki H, Pierdet M, Thomas OP, Zubia M. Insights into the Metabolome of the Cyanobacterium Leibleinia gracilis from the Lagoon of Tahiti and First Inspection of Its Variability. Metabolites. 2020; 10(5):215. https://doi.org/10.3390/metabo10050215

Chicago/Turabian Style

Solanki, Hiren, Manon Pierdet, Olivier P. Thomas, and Mayalen Zubia. 2020. "Insights into the Metabolome of the Cyanobacterium Leibleinia gracilis from the Lagoon of Tahiti and First Inspection of Its Variability" Metabolites 10, no. 5: 215. https://doi.org/10.3390/metabo10050215

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