-42- 



■yi i 





Figure 33. Light micrograph of ORSV-inf ected cells 

 showing a stacked-plate inclusion (SI, 

 side view) in semithin section (0.5 Mm 

 thick). Section is stained with toluidine 

 blue . Bar = 5 jam. 



Figure 34. Electron micrograph of ORSV stacked- 

 plate inclusion (side view) in Cattleya 

 leaf cells stained with O/G 

 combination. Bar = 600 nm. 



