Dr. Patrick Keeling, FRSC: Our recent discovery that the malaria parasite, Plasmodium, contains a chloroplast raises an intriguing question. Why would a parasite that develops in the dark within animal cells, need an organelle used for photosynthesis by plants and algae? The search for an answer has played out on coral reefs, and I will discuss our research that has traced back to an ancient evolutionary event where one cell ate another and stole its plastid.
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