Polar Microbes and Climate Change by Alysson Wagner, 2025

A Molecular Understanding for Sustainable Future

Recent studies on #extremophiles have focused on #thermophiles, microbes that thrive in high temperatures, while #psychrophiles, which prefer cold environments, have received less attention. However, interest in cold-adapted microbes, especially those in polar regions, has increased significantly in recent decades.

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Dans le permafrost à -20 °C (du sol gelé en permanence), des bactéries #psychrophiles, comme Psychrobacter, survivent grâce à des adaptations : elles disposent de protéines antigel, de glycogène, comme cryoprotecteur et d’acides gras pour une meilleure fluidité membranaire.