ORTALO-MAGNE Annick

Articles

• Antifouling Coatings for War Ships
  7 June 2016, by Hugues BRISSET

  Financement:
  EDA Project.B0001-GEM1-ERG and B0945-GEM1-ERG
  Description:
  The pressure of environment regulations has reached to ban tin containing antifouling coatings, which could have fulfilled the objectives of dry-docking intervals previously mentioned. In addition, other metallic compounds are considered to be regulated in a near future such as copper base products well known to-day as antifouling components.
  New tin free self polishing / ablative antifoulings have been (…)

• Revêtements non toxiques à fonctionnalités antisalissures et réduction de traînée
  7 June 2016, by Hugues BRISSET

  Personnes de MAPIEM participant au programme:
  Anton Charlène, Blache Yves, Briand Jean-François, Canilho Nadia, Culioli Gérald, Guentas-Dombrowsky Linda, Horatius Lydia, Margaillan André, Ortalo-Magné Annick, Petit Christelle, Tanguy Brigitte Partenaire(s) :BLANCOLOR
  Philippe Allex IFREMER
  Chantal Compère DCNS
  Philippe Le Calvé

• Metabolomic and proteomic profiling of the marine biofilm-forming Pseudoalteromonas lipolytica response to copper stress
  4 September 2018
• Evaluation et caractérisation de l’activité anti-biofilms marins de nouveaux inhibiteurs du quorum sensing, des MIP anti-AHL
  1 September 2023, by JFB

  Funding :
  CD83-APRI Short Overview:
  L’objectif premier est de tester l’activité d’inhibition du quorum sensing (QS), sur des bactéries marines et autres souches bactériennes, de nouveaux composés synthétisés à dessein au laboratoire de type polymères à empreintes moléculaires (molecularly imprinted polymers ou MIP).
  Pour des MIP révélant une activité de séquestration d’AHL intéressante, il s’agira d’analyser leur effet sur le développement de biofilms et sur le métabolisme cellulaire. (…)

• Bioindication of Mediterranean coastal environments associated with biofilms
  30 March 2021, by JFB

  Acronym :
  BIOFINDIC Funding :
  Agence de l’Eau RMC Short Overview:
  L’objectif du projet est d’étudier le potentiel des biofilms comme outil de bioindication de la qualité des masses d’eau méditerranéennes côtières. Elle repose sur deux parties complémentaires : (1) une étude directement couplée à la campagne en mer SUCHIMED, opéré par l’IFREMER, sur les biofilms qui auront colonisés 150 plaques A4 en PE immergées du 16 mars au 7 juillet 2021 sur 50 sites le long des 1800 km des côtes (…)

• Discrimination of four marine biofilm-forming bacteria by LC-MS metabolomics and influence of culture parameters
  31 March 2017

  Most marine bacteria can form biofilms, and they are the main components of biofilms observed on marine surfaces. Biofilms constitute a widespread life strategy, as growing in such structures offers many important biological benefits. The molecular compounds expressed in biofilms and, more generally, the metabolomes of marine bacteria remain poorly studied. In this context, a nontargeted LC–MS metabolomics approach of marine biofilm-forming bacterial strains was developed. Four marine bacteria, Persicivirga (Nonlabens) mediterranea TC4 and TC7, Pseudoalteromonas lipolytica TC8, and Shewanella sp. TC11, were used as model organisms. The main objective was to search for some strain-specific bacterial metabolites and to determine how culture parameters (culture medium, growth phase, and mode of culture) may affect the cellular metabolism of each strain and thus the global interstrain metabolic discrimination. LC–MS profiling and statistical partial least-squares discriminant analyses showed that the four strains could be differentiated at the species level whatever the medium, the growth phase, or the mode of culture (planktonic vs biofilm). A MS/MS molecular network was subsequently built and allowed the identification of putative bacterial biomarkers. TC8 was discriminated by a series of ornithine lipids, while the P. mediterranea strains produced hydroxylated ornithine and glycine lipids. Among the P. mediterranea strains, TC7 extracts were distinguished by the occurrence of diamine derivatives, such as putrescine amides.

• Design of molecularly imprinted polymers with anti-quorum sensing properties
  6 January, by CaB
• Environmental Burkholderia cepacia strain Cs5 acting by two analogous alkyl-quinolones and a didecyl-phthalate against a broad spectrum of phytopathogens fungi
  3 June 2016
• Caractérisation et activité anti-biofilm des exopolysaccharides de la bactérie marine Pseudoalteromonas ulvae TC14
  15 September 2016
• Recherche de biomarqueurs par analyse métabolomique à partir de bactéries issues de biofilms marins
  6 June 2016