https://c8.alamy.com/comp/PFK11W/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-11000-dilution-and-labelled-with-protein-a-gold-pdplasmodesma-cwcell-wall-bar-=-350-nm-figure-56-same-tissue-and-treatments-as-in-fig-55-except-that-incubation-was-with-normal-serum-1500-dilution-note-the-background-of-nonspecific-reaction-arrows-cwrc-PFK11W.jpg