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Example of microinjected cells showing no nuclear import of PSTVd despite of high level of cytosolic viroid injection: AF488-labeled PSTVd looks green, DAPI (blue) shows the nucleus, yellow arrows point the nucleus of the injected cell, asterisks (*) indicate the nucleus of the neighboring guard cell and the white scale bar is 20 µm. These photos and similar images are also presented in Video S2.
