PLATE 27 
Bacterial spot of tomato: 
A. —Cross section of young fruit lesion resulting from natural infection. What ap¬ 
pears to be a puncture wound is clearly visible. Photomicrograph, X 90. 
B. —Cross section of young fruit lesion, showing hypertrophy of underlying meso- 
carp cells and formation of a cork layer under the necrotic tissue. Photomicro¬ 
graph, X 90. 
C. —Cross section of a fruit lesion, showing hyperplasia of mesocarp cells and forma¬ 
tion of a cork layer at one side of the lesion. Photomicrograph, X 90. 
