An important role of RNA interference (RNAi)-like pathways in plants is defense against viral infection. Viruses can overcome this defense by expressing proteins that suppress the pathway. A new study of Agrobacterium tumefaciens infection reveals that this plant pathogen, although a bacterium, also induces and then suppresses the host RNAi response.
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Waterhouse, P. Defense and counterdefense in the plant world. Nat Genet 38, 138–139 (2006). https://doi.org/10.1038/ng0206-138
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DOI: https://doi.org/10.1038/ng0206-138