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Contact: Natalie Bouaravong
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Caption: Symbionts (Buchnera aphidicola) within a bacteriocyte of a pea aphid (Acyrthosiphon pisum). The central object is the host nucleus. Buchnera cells are round and packed into the cytoplasm.
Credit: Photo: J. White and N. Moran, University of Arizona
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Related news release: Evolution of symbiosis
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