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Research -
Projects
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The three teams of the Plankton Group are participating in a new EU project called MicroB3 dedicated to the genomics and metagenomics of Marine Microbes. The startup meeting took place at Jacobs University in Bremen on Feb 1-3 2012.
The project’s main objectives are to create an integrative database,
which is open to researchers worldwide and features many innovative
tools for data analysis, and to develop a legal framework for
genome-based environmental research. New biotechnological applications
will also be identified.
32 partner institutions from 14 countries are participating in the
project, which unites leading experts from eight disciplines and is
coordinated by Frank Oliver Glöckner, Professor of Bioinformatics at Jacobs University.
Modern biotechnological processes, which utilize or modify genetic
information, have been in use for many years. Their main areas of usage
lie within agriculture, medical or pharmaceutical applications, and the
food industry. The so-called “blue biotechnology”, which uses genetic
information of marine organisms for biotechnology, is still considered
new terrain: Only 1% of all biotechnology companies worldwide use marine
ecosystem knowledge as a source (e.g. for innovative enzymatic
functions).
The potential of blue biotechnology, however, is huge, since life in
marine habitats and especially microbial communities shows an enormous
biodiversity and thus a genetic diversity, which largely exceeds that of
most terrestrial ecosystems. Yet, this diversity has hardly been
explored.
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Last Updated ( Friday, 03 February 2012 )
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Education -
University
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Daniel Vaulot participated in the VII ECODIM Course in Las Cruces, Chile. This marine microbiology course that takes place every two years is attended by the 15 best graduate and post-graduates from Latin America in the field. This year Chile, Argentina, Brazil, Uruguay, Colombia and Cuba were represented. The course lasts 3 weeks and includes lectures, field trips, practicals as well as team research project. This year it was a great success with impressive students. See you for the next edition in 2014....
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Last Updated ( Saturday, 28 January 2012 )
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News -
Announcements
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Last Updated ( Saturday, 28 January 2012 )
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News -
Announcements
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Last Updated ( Wednesday, 28 December 2011 )
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News -
Announcements
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Anne-Claire Baudoux has been recruited in 2011 as a CNRS "Chargée de Recherche" and has started her new position in Roscoff on Oct 1, 2011. She is a member of the Diversity of Oceanic Plankton team, part of UMR 7144.
Anne-Claire's interest includes the diversity, the evolution, and the
ecology of marine viruses, which infect phytoplankton and bacteria. Her
research focuses mainly on the interactions of viruses with
their environment (both biotic and abiotic) and how these interactions
affect the functioning of marine ecosystems.
A few years ago, Anne-Claire spent some times in Roscoff as a visiting post-doctoral fellow.
Publications of Anne-Claire
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Last Updated ( Friday, 04 November 2011 )
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News -
Announcements
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Last Updated ( Tuesday, 08 November 2011 )
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Research -
Topics
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Le phytoplancton calcaire, maillon important du
cycle du carbone océanique, apparait très sensible à l'acidification
océanique. Une étude internationale impliquant notamment des chercheurs
du CNRS
montre que la sécrétion du squelette calcaire d'une espèce de
microalgues : les coccolithophores, diminue quand les eaux marines
deviennent plus acides, mais certaines souches hyper-calcifiées se sont
adaptées aux milieux les plus corrosifs. Leurs résultats sont publiés
dans la revue Nature du 4 aout 2011.
Cinq coccolithophoridés vus au microscope électronique à balayage
montrant les différences de calcification existant au sein de la même
espèce ici Emiliania huxleyi. © Luc Beaufort CNRS/CEREGE
- Beaufort, L., Probert, I., de Garidel-Thoron, T., Bendif, E. M.,
Ruiz-Pino, D., Metzl, N., Goyet, C., Buchet, N., Coupel, P., Grelaud,
M., Rost, B., Rickaby, R. E. M. & de Vargas, C. 2011. Sensitivity of
coccolithophores to carbonate chemistry and ocean acidification. Nature 476:80-83 - pdf
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Last Updated ( Saturday, 13 August 2011 )
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Research -
Projects
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Dans le cadre de l'ANR Paralex, les équipes DPO, BEDIM, Chimie Marine, et
DIVCO mettent en commun leurs compétences pour identifier les parasites
naturels d'Alexandrium dans des écosystèmes récemment contaminés par des
microalgues invasives et toxiques afin de comprendre leur rôle dans la
résilience et la stabilité des écosystèmes marins côtiers.
Le
dinoflagellé Alexandrium minutum est une microalgue planctonique
susceptible de proliférer de façon importante pour former des marées
rouges.
La campagne 2011 permet de suivre en parallèle ces
efflorescences en Penzé et en Rance où les différentes équipes se
relaient de fin mai à mi-juillet 2011.
L'équipe Chimie Marine est en charge du suivi des conditions
hydrologiques pendant la campagne et a installé un container-laboratoire
à Plouër-sur-Rance pour des analyses in-situ, et déployé plusieurs
instruments en Rance (capteurs).
Voir l'article paru dans Ouest-France
version pdf de l'article de Ouest France
version pdf de l'article du Télégramme
Article du Petit Bleu
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Last Updated ( Saturday, 13 August 2011 )
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News -
Announcements
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Daniella Mella-Flores a défendu sa thèse de doctorat à la Station
Biologique de Roscoff le Jeudi 9 Juin 2011 (Université de Paris 6). Son travail
a porté sur l'étude de la Diversité Génétique et Fonctionnelle des
Cyanobactéries Picoplanctoniques Marines. Elle s'est en particulier intéressée à
la distribution écologique, la diversité génétique et la réponse physiologique
à différents stress environnementaux chez les deux principaux genres de
picocyanobactéries marines, Prochlorococcus
et Synechococcus.
Daniella Mella-Flores defended her PhD thesis the 9th of June
2011 at the Station Biologique of Roscoff (University of Paris 6). She worked
on the Genetic and Functional Diversity of Marine Picoplanktonic Cyanobacteria
with a more specific focus on the study of the ecological distribution, the
genetic diversity and the physiological responses to different stress
conditions of the two main genera of marine cyanobacteria, Prochlorococcus and Synechococcus.
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Last Updated ( Thursday, 23 June 2011 )
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