. Cytological methods for the detection, identification, and characterization of orchid viruses and their inclusion bodies. Orchids; Virus diseases of plants. -55-. Figure 55. Electron micrograph of virus particles distributed within the cytoplasm of CMV- infected Phalaenopsis leaf cells. Section was incubated with CMV antiserum (1/1000 dilution) and labelled with protein A-gold Pd:Plasmodesma. CW:Cell wall. Bar = 350 nm. Figure 56. Same tissue and treatments as in Fig. 55, except that incubation was with normal serum (1/500 dilution). Note the background of nonspecific reaction (arrows). CWrC - Stock Image