Reference : Insertional mutagenesis to select mutants for modified hydrogen photoproduction in Ch...
Scientific congresses and symposiums : Poster
Life sciences : Biochemistry, biophysics & molecular biology
http://hdl.handle.net/2268/100388
Insertional mutagenesis to select mutants for modified hydrogen photoproduction in Chlamydomonas reinhardtii
English
[en] Mutagenèse insertionelle afin d'isoler des mutants déficients pour la photoproduction d'hydrogène chez chlamydomonas reinhardtii
Godaux, Damien mailto [Université de Liège - ULg > Département des sciences de la vie > Génétique >]
Emonds-alt, Barbara [> >]
Cardol, Pierre mailto [Université de Liège - ULg > Département des sciences de la vie > Génétique >]
Franck, Fabrice mailto [Université de Liège - ULg > > Labo de Bioénergétique >]
Remacle, Claire mailto [Université de Liège - ULg > Département des sciences de la vie > Génétique >]
18-Sep-2011
A0
No
No
International
Microorganisms for Bio-fuel Production from Sunlight
18/09/2011-21/09/2011
European science foundation
Bielefeld
Allemagne
[en] Chlamydomonas ; hydrogen ; mutagenesis
[en] The unicellular green alga Chlamydomonas reinhardtii has evolved the ability to redirect electrons from the photosynthetic chain to drive hydrogen production via chloroplast oxygen-sensitive hydrogenases. This process occurs under anaerobic conditions and provides a biological basis for solar-driven hydrogen production. Nevertheless, the yield is a major limitation for an economic viability and fundamental knowledge is still needed in order to have a better understanding of the process. In 2000, Melis and co-worker defined a protocol allowing a sustainable hydrogen production in sulfur deprivation condition. By adjustment of an existent protocol called the Winkler test, we are trying to isolate mutants with an attenuated photosynthesis to respiration capacity ratio (P/R ratio). This kind of mutants could be able to reach anoxia needed for hydrogenases activity without the stressful impact of sulfur deprivation. An insertional mutagenesis of Chlamydomonas has been carried out with an hygromycin resistance cassette and about 2500 transformants have generated and screened by the adapted Winkler test. We have isolated several oxygen-consuming mutants and the most promising one is subject to functional, molecular and genetic characterization.
Université de Liège
Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA
Researchers
http://hdl.handle.net/2268/100388

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