Figure 1:
The Arabidopsis thaliana-Pseudomonas syringae pathosystem.
A) Phenotype of the healthy Arabidopsis leaves.
B) Leaves undergoing the hypersensitive response (24 hpi).
C) Leaves inoculated with a non-disease eliciting P. syringae strain.
D) Leaf symptoms of the bacterial speck disease. hpi, hours post-inoculation.