Fig. 2

Symptoms of pith necrosis on Solanum lycopersicum cv. Sun Gold following artificial inoculation with Pseudomonas isolates obtained from naturally infected plants. (A) Wilting of leaves and (B) chlorosis of basal foliage. (C) Longitudinal stem section showing internal pith necrosis caused by P. viridiflava isolate SA 4.1; (D) pith browning caused by P. mediterranea isolate SA 8.8; and (E) healthy stem tissue of a control plant, inoculated with sterile distilled water.