Chemically mediated interactions betweenMicrocystisandPlanktothrix: impact on their growth, morphology and metabolic profiles

Autor: Zouher Amzil, Florence Mondeguer, Sébastien Reubrecht, Manoella Sibat, Philipp Hess, Enora Briand, Myriam Bormans
Přispěvatelé: Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Institut Français de Recherche pour l'Exploitation de la Mer - Atlantique (IFREMER Atlantique), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), FP7 People: Marie‐Curie Actions. Grant Number: 301244‐CYANOMIC, European Project: 301244,EC:FP7:PEOPLE,FP7-PEOPLE-2011-IOF,CYANOMIC(2012), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2019
Předmět:
Zdroj: Environmental Microbiology (1462-2912) (Wiley), 2019-05, Vol. 21, N. 5, P. 1552-1566
Environmental Microbiology
Environmental Microbiology, Society for Applied Microbiology and Wiley-Blackwell, 2019, 21 (5), pp.1552-1566. ⟨10.1111/1462-2920.14490⟩
Environmental Microbiology, 2019, 21 (5), pp.1552-1566. ⟨10.1111/1462-2920.14490⟩
ISSN: 1462-2920
1462-2912
DOI: 10.1111/1462-2920.14490
Popis: International audience; Freshwater cyanobacteria are known for their ability to produce bioactive compounds, some of which have been described as allelochemicals. Using a combined approach of co-cultures and analyses of metabolic profiles, we investigated chemically mediated interactions between two cyanobacterial strains, Microcystis aeruginosa PCC7806 and Planktothrix agardhii PCC7805. More precisely, we evaluated changes in growth, morphology and metabolite production and release by both interacting species. Co-culture of Microcystis with Planktothrix resulted in a reduction of the growth of Planktothrix together with a decrease of its trichome size and alterations in the morphology of its cells. The production of intracellular compounds by Planktothrix showed a slight decrease between mono and co-culture conditions. Concerning Microcystis, the number of intracellular compounds was higher under co-culture condition than under monoculture. Overall, Microcystis produced a lower number of intracellular compounds under monoculture than Planktothrix, and a higher number of intracellular compounds than Planktothrix under co-culture condition. Our investigation did not allow us to identify specifically the compounds causing the observed physiological and morphological changes of Planktothrix cells. However, altogether, these results suggest that co-culture induces specific compounds as a response by Microcystis to the presence of Planktothrix. Further studies should be undertaken for identification of such potential allelochemicals. This article is protected by copyright. All rights reserved.
Databáze: OpenAIRE
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