Miriam REVERTER

http://www.criobe.pf/pro/wp-content/uploads/sites/3/2015/10/Reverter-e1445951413762-154x232.jpg

Doctorant
École Pratique des Hautes Études (EPHE)

CRIOBE - Perpignan
CRIOBE - USR3278- EPHE-CNRS-UPVD
Laboratoire d’Excellence “CORAIL”
Bâtiment R-CBETM
58 Avenue Paul Alduy
66860 Perpignan CEDEX
France

Email:

Domaines de Recherche:

  • Ecologie marine
  • Ecologie chimique
  • Parasitologie
  • Biodiversité
  • Aquaculture

Soutenance de Doctorat | 21 Octobre 2016

Titre: Host-Parasite interaction in coral reef fish
Abstract : Fish parasites are an important part of ecosystems, however, in certain cases such as in aquaculture they can cause severe disease outbreaks. In this thesis I have studied host-parasite interactions in coral reef fishes, both in the natural and culture environments. I have studied the distribution of 13 dactylogyrid species from 34 butterflyfishes in the Indo West-Pacific. Composition of dactylogyrid communities was host specific and together with the biogeography results, where a turnover in the main Haliotrema species was observed, suggest that parasite specificity might result from host-parasite coevolution derived from past biogeographical episodes. Only one butterflyfish species, Chaetodon lunulatus, was never found parasitized by gill monogeneans. I have studied the butterflyfish mucus, which is the first barrier against pathogens, to investigate the C. lunulatus factors that might be related to the monogenean absence. Butterflyfish gill microbiome and metabolome revealed a high diversity. C. lunulatus presented a significantly higher abundance of Fusobacteria which was correlated to a higher expression of potentially derived β-hemoglobin peptides. Synthesis and evaluation of the peptide antiparasitic activities are being performed in the laboratory. I have also studied the use of medicinal plants as an alternative to chemotherapy in fish aquaculture. I investigated the antibacterial and immunostimulant activities of several local Polynesian plants and algae, and I found that Asparagopsis taxiformis displayed a potent antibacterial activity against Vibrio harveyi and Tenacibaculum maritmum and increased expression of two immune-related genes in Platax orbicularis.

Sélection de Publications

  • Reverter, M., Bontemps, N., Lecchini, D., Banaigs, B., Sasal, P., 2014. Use of plant extracts in fish aquaculture as an alternative to chemotherapy: Current status and future perspectives. Aquaculture 433, 50–61.
  • Reverter, M., Saulnier, D., David, R., Bardon-Albaret, A., Belliard, C., Bontemps, N., Lecchini, D., Sasal, P., 2016. Effects of local Polynesian plants and algae on growth and expression of two immune-related genes in orbicular batfish (Platax orbicularis). Fish and Shellfish Immunology 58, 82-88.
  • Reverter, M., Cutmore, S., Bray, R., Cribbs, T., Sasal, P., 2016. Gill monogeneans (Platyhelminthes, Monogenea, Dactylogyridae) of butterflyfishes from the tropical Indo-West Pacific Islands. Parasitology, 143, 1580-1591.
  • Reverter, M., Bontemps, N., Sasal, P., Saulnier, D., 2017. Use of medicinal plants in aquaculture. In: Austin, B., Newaj-Fyzul, A. Diagnosis and control of diseases of fish and shellfish. Wiley, Oxford, In press.

Biographie

Je suis diplômé avec une maîtrise en Sciences de la mer de l’Université de las Palmas de Gran Canaria avec félicitations du jury en 2012. Ensuite j’ai obtenu une bourse de l’association la Caixa pour réaliser le master de Molécules bioactives et environnement à l’Université de Perpignan Via Domitia, pendant lequel j’ai réalisé un stage de six mois sur la variabilité temporelle des métabolites sécondaires chez l’éponge Aplysina cavernicola au Laboratoire de Chimie des Biomolécules et Environnement en partenariat avec la Station Marine d’Endoume. En Octobre 2013 j’ai commencé une thèse doctorale au Centre des Recherches Insulaire et Observatoire de l’Environnement (CRIOBE) avec une bourse du Labex Corail et sous la direction de Pierre Sasal, Nataly Bontemps et David Lecchini. J’étudie les interactions entre les parasites et les poissons tropicales, sur un modèle naturel : les poissons papillon et leurs parasites monogènes, et un modèle appliqué à l’aquaculture : Platax orbicularis et la bactérie Tenacibaculum maritimum.

Retour à la liste complète