
Myriam Bormans
- Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO)
Présentation
Mes recherches portent sur la dynamique des cyanobactéries toxiques et leurs impacts sur les organismes. Dans le contexte de transfert des cyanobactéries et de leurs toxines le long du continuum terre mer, nous avons récemment étudié l'impact de la salinité sur le microbiome de Microcystis (une cyanobactérie d’eau douce dominante dans les lacs/réservoirs) en incluant une approche de microfluidique. Sur le terrain et en laboratoire en conditions contrôlées nous avons étudié les réponses physiologiques, génétiques et métaboliques de colonies naturelles de Microcystis en réponse à un choc salin. Ainsi nous avons démontré que la formation de colonies entourées d'un mucilage conférait une résistance accrue face au choc salin permettant une survie des cyanobactéries en estuaires. Ce mucilage contribue aussi à la protection du microbiome associé fournissant de nombreuses fonctions de coopération. Nous avons également développé une nouvelle méthode d'extraction et de quantification des cyanotoxines spécifiquement adaptée à la salinité ainsi que démontré la détection et quantification des cyanotoxines dans le mucilage des colonies.
Publications
Publications
Detection and quantification of cyanotoxins in the mucilage of natural Microcystis coloniesJournées GDR e-TOX 2025, May 2025, Cestas, France
Poster de conférence
hal-05034619
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Detection and quantification of cyanotoxins in the mucilage of natural Microcystis coloniesInternational Conference on Toxic Cyanobacteria (ICTC13), May 2025, Chania Crete, Greece
Poster de conférence
hal-05034569
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Naturally released metabolites of Microcystis aeruginosa impact on Daphnia magnaInternational Conference on Harmful Algae, Oct 2021, La Paz, Mexico
Poster de conférence
hal-05034661
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Cyanobacteria and cyanotoxins in estuarine waters and sedimentsThe 11th International Conference on Toxic Cyanobacteria, May 2019, Krakow, Poland.
Poster de conférence
hal-02374436
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Interest of bivalves for the biosurvey of cyanotoxins in aquatic ecosystemsSETAC Europe 28th Annual Meeting, May 2018, Rome, Italy.
Poster de conférence
hal-02374671
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Physiological and metabolic responses of Microcystis aeruginosa to a salinity gradientInternational Conference on Harmful Algae, ICHA 2018, Oct 2018, Nantes, France
Poster de conférence
hal-02374540
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Metabolic interactions between Daphnia and cyanobacteriaConférence nationale GdR Phycotox & GIS Cyano, Mar 2017, Gif sur Yvette, France. 2017
Poster de conférence
hal-01633404
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Chemically mediated interactions between Microcystis and Planktothrix: Impact on their physiology and metabolic profilesConférence nationale GdR Phycotox & GIS Cyano, Mar 2017, Gif sur Yvette, France. 2017
Poster de conférence
hal-01628983
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Transfer and fate of toxic cyanobacteria from the freshwater to the marine environmentConférence nationale GdR Phycotox & GIS Cyano, Mar 2017, Gif sur Yvette, France. 2017
Poster de conférence
hal-01633403
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Preliminary metabolomic approach on cyanobacterial co-cultures: Chemically mediated interactions between Microcystis and PlanktothrixSMMAP 2017-Mass Spectrometry, Metabolomics and Proteomic Analysis, Oct 2017, Paris, France.
Poster de conférence
hal-02374702
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Degradation of cyanobacterial secondary metabolites by a natural bacterial community associated with MicrocystisASLO Meeting, Feb 2015, Granada, Spain. 2015
Poster de conférence
hal-01158690
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Metabolic profiling comparison of the toxic Microcystis aeruginosa PCC 7806 strain and its non-toxic mutantGordon Research Conference: Marine Natural Products, Mar 2014, Ventura, United States
Poster de conférence
hal-01158706
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Changes in Microcystis metabolic profiles in response to intra-specific interactions evidenced by a co-culturing/molecular networking approachEcologie 2014: British Ecological Society-Société Française d’Ecologie Meeting, Dec 2014, Lille, France
Poster de conférence
hal-01158700
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Metabolic profiling comparison of the toxic Microcystis aeruginosa PCC 7806 strain and its non-toxic mutantOcean Health and Human Grantee Conferenc, Mar 2014, San Diego, United States
Poster de conférence
hal-01158704
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Acclimatisation strategies in gastropods to environmental pollutants: Mixture toxicity of a pesticide and cyanobacterial toxins9th International Conference on Toxic Cyanobacteria “Living with toxigenic cyanobacteria”, Aug 2013, Pilanesberg, South Africa
Poster de conférence
hal-01159039
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Effect of small scale turbulence on phytoplankton community structure: A morphofunctional experimental approachInternational workshop on Microscale interactions in aquatic environments, Mar 2013, Les Houches, France
Poster de conférence
hal-01159041
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Proteomic response of Unio pictorum mussel to a mixture of glyphosate and microcystin9th International Conference on Toxic Cyanobacteria “Living with toxigenic cyanobacteria”, Aug 2013, Pilanesberg, South Africa
Poster de conférence
hal-01159035
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Effect of small scale turbulence on phytoplankton community structure: A morphofunctional experimental approach4th International Multidisciplinary Conference on Hydrology and Ecology: Emerging patterns, Breakthoughs and Challenges, May 2013, Rennes, France
Poster de conférence
hal-01159042
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Comparison of the effects of a mixture of glyphosate and microcystin on two species of mussels: Analysis by proteomicsInternational Workshop "Genericity of responses and adaptation strategies to multiple stresses in organisms of aquatic and terrestrial ecosystems", Nov 2012, Paimpont, France
Poster de conférence
hal-01159097
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Evidence of the cost of the production of microcystins by Microcystis aeruginosa under differing light and nitrate environmental conditionsInternational Workshop "Genericity of responses and adaptation strategies to multiple stresses in organisms of aquatic and terrestrial ecosystems", Nov 2012, Paimpont, France
Poster de conférence
hal-01159094
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Acclimatisation strategies in gastropods to environmental pollutants: Comparison of a strong invasive to a declining endogenous speciesInternational Workshop "Genericity of responses and adaptation strategies to multiple stresses in organisms of aquatic and terrestrial ecosystems", Nov 2012, Paimpont, France
Poster de conférence
hal-01159103
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Comparison of the effects of a mixture of glyphosate and microcystin on two species of mussels: Analysis by proteomicsHUPO (Human Proteome Organisation) Annual World Congress, Sep 2012, Boston, United States
Poster de conférence
hal-01159105
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Transfert trophique de cyanotoxines entre le gastéropode Lymnaea stagnalis et le poisson Gasterosteus aculeatusRéunion du GIS Cyanobactéries, Jan 2011, Clermont Ferrand, France
Poster de conférence
hal-01103365
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Competition for light and nitrogen between the toxic Microcystis aeruginosa PCC7806 strain and its non-toxic mutant8th International Conference on Toxic Cyanobacteria, Jul 2010, Istanbul, Turkey
Poster de conférence
hal-01159169
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Prospective Surfaces et Interfaces Continentales : 2024-2028INSU, CNRS; INEE, CNRS. 2024, 147 p
Rapport
(rapport d’expertise collective)
insu-05045026
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