In sensitive assays, tomato, lettuce and dwarf umbrella trees strains are sensitive to cupric sulfate and streptomycin.
Dwarf umbrella trees (Schefflera arboricola) are native to the tropical and subtropical regions of Asia.
Group A included only dwarf umbrella trees strain, Scheflera 1; group B included only lettuce strain, Lettuce 1; group C was included four tomato strains, one lettuce strain and two reference strains (Tomato 1, 2 4 and 5; Lettuce 3; CFBP 2101 and NCPPB 3802): while group D was included two tomato strains, one lettuce and reference strain (Tomato 3, 6, Lettuce 2 and GSPB 2097).
As a result, as seen in the PCR studies, isolates of Pseudomonas cichorii cng pith necrosis on tomato, vascular rot in lettuce and leaf spot on dwarf umbrella trees were separated from each other by forming different bands.
The purpose of this study was to isolate and identify of the causal agents of leaf spot disease of tomato, lettuce and dwarf umbrella tree grown in the eastern Mediterranean region of Turkey and to characterize them by morphological, physiological and biochemical tests, ELISA, whole cell fatty acid analysis and pathogenicity tests compared with reference lettuce, tomato and dwarf umbrella tree strains.