Warming stops tiny organisms working together

Paramecium bursaria with Chlorella spp. (red) and nucleic acid (bright greenyellow), highlighting the nucleic acid in symbiont nuclei and ribosomes

Source: Dr Ben Makin

The single-celled organism Paramecium bursaria can absorb and host algae (Chlorella spp), providing benefits for both, but when scientists made the water 5°C warmer, the partnership stopped working – and the algae may even become parasitic.

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