158 



BACTERIAL DISEASES OF PLANTS 



Fig. 98. — Cross-section of a turnip root showing a parenchyma cell with Bacterium 

 campestre filling the intercellular spaces. X 1000 circa. 





Fig. 99. — Longitudinal .sciliou ol kjuI dI mi imn ulatcd turnip showing Bac- 

 ierium campestre occupying a vessel and cells at the left. X circa 800. The in- 

 oculation was made on the leaves by needle pricks. 



