DS0101 - Comprendre et prévoir les évolutions de notre environnement

ADAPTATION OF PHYTOPLANKTON TO POLAR REGIONS: SURVIVAL STRATEGIES DURING THE ARCTIC WINTER – PhytoPol

Submission summary

Phytoplankton is responsible for about half of the photosynthesis on the planet. In polar regions, phototrophic organisms need to survive during long periods of darkness occurring in winter. However survival mechanisms remain mysterious and uncovering them is a key to understand how primary production is sustained in polar regions. Until now studies have been hampered by the difficulty of access especially in winter. The Norwegian project Micropolar to which the two french PIs are associated offers a unique opportunity to sample polar waters every two months for two years, including during winter. PhytoPol will take advantage of this to address the question of the survival of phytoplankton during long darkness. It is structured in three tasks: i) Establish and characterize dominant polar photosynthetic pico- and nano-eukaryote strains/species, ii) In vitro analysis of the mechanism(s) used to survive long periods in the dark., and iii) Molecular mechanism of adaptation to darkness.

Project coordinator

Monsieur Hervé Moreau (Observatoire océanologique de Banyuls)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.

Partner

CNRS - OOB Observatoire océanologique de Banyuls
SBR Station Biologique de Roscoff

Help of the ANR 409,086 euros
Beginning and duration of the scientific project: September 2015 - 36 Months

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