A molecular genetic approach was used to identify and characterize plant genes that control
bacterial disease resistance in Arabidopsis. A screen for mutants with altered resistance to
the bacterial pathogen Pseudomonas syringae pv. tomato (Pst) expressing the avirulence
gene avrRpt2 resulted in the isolation of four susceptible rps (resistance to P. syringae)
mutants. The rps mutants lost resistance specifically to bacterial strains expressing avrRpt2
as they retained resistance to Pst strains expressing the avirulence genes avrB or avrRpm1 …

A molecular genetic approach was used to identify and characterize plant genes that control
bacterial disease resistance in Arabidopsis. A screen for mutants with altered resistance to
the bactorial pathogen Pseudomonas syringae pv. tomato (Pst) expressing the avirulence
gene avrRpt2 resulted in the isolation of four susceptible rps (Iesistance to p. syingae)
mutants. The rps mutants lost resistance specifically to bacterial strains expressing avrRpt2
as they retained resistance to Pst strains expressing the avirulence genes avrB or avrRpml …