A marine parasite’s mitochondria lack DNA but still churn out energy
The missing genetic material turned up in the microbe’s nucleus

PARASITE LIFE Parasitic Amoebophyra ceratii, which surprisingly is missing its mitochondrial DNA, can infect an ocean alga called Alexandrium (healthy, left; infected, middle and right). The photosynthetic part of the alga is shown in red and the parasite’s cytoplasm in green.
Yameng Lu