Secreted isochorismatase required for full virulence of P.sojae (PubMed:25156390). Suppresses salicylate-mediated innate immunity of the host by disrupting the plant salicylate metabolism pathway via hydrolysis of its isochorismate precursor (PubMed:25156390). H2O + isochorismate = (2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate Lacks a signal peptide and uses an unconventional secretion pathway for delivering effectors which plays an important role in host-pathogen interactions. Expression is up-regulated during the infection stages. Leads to a significant reduction in virulence on soybean seedling and increases the concentrations of both free salicylate and its glucoside (SAG) by about 3-fold in soybean seedling. Belongs to the isochorismatase family.