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Cadmium blocks viral invasion in plants

To move between different parts of their hosts, most plant viruses exploit the phloem. Plants exposed to subtoxic levels of cadmium ions can resist this viral highjacking of their transportation network. New work in this issue of Nature Cell Biology has identified a novel, chemically induced, glycine-rich protein that is responsible for inhibiting the long-distance movement of turnip vein clearing tobamovirus (TVCV) in tobacco plants.

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Figure 1: Local and systemic movement of plant viruses.

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Carr, J., Murphy, A. Cadmium blocks viral invasion in plants. Nat Cell Biol 4, E167–E168 (2002). https://doi.org/10.1038/ncb0702-e167

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