Fluorescence analysis. Fluorescence analysis of CaMV35S-CRL T2-1, CRL-RNAi T2-5 and wild-type plants inoculated with CaLCuV:GFP (both components are present). Representative results from each line and time are shown. Samples taken from symptomatic leaves are marked with asterisk. 35S::GFP was used as a control. GFP expression was observed by using a fluorescent microscope (× 10). Bars = 100 μm.