Nonhost resistance of tomato to the bean pathogen Pseudomonas syringae pv. syringae B728a is due to a defective E3 ubiquitin ligase domain in avrptobb728a
Molecular plant-microbe interactions : MPMI (2013) - Comment
pubmed: 23252461  doi: 10.1094/mpmi-08-12-0190-r  issn: 0894-0282 

Ching-Fang Chien, Johannes Mathieu, Chun-Hua Hsu, Patrick Boyle, Gregory B. Martin, Nai-Chun Lin