Studies on Pseudomonas syringae pv. tomato and Xanthomonas campestris pv. vesicatoria in tomato and pepper
1996
Amer, M.A. | Poppe, J. | Samra, I. el (Alexandria University (Egypt). Fac. of Agriculture. Agricultural Botany Department)
Bacterial leaf spot caused by Xanthomonas campestris pv. vesicatoria (Xcv) and bacterial speck caused by Pseudomonas syringae pv. tomato (Pst) were observed on various tomato and pepper plants in Belgium. The presence of Pst and Xcv was confirmed in these diseased plants. Selective media, culture characterization, electron microscopy investigation, physiological and biochemical reaction tests and tobacco hypersensitivity reaction were used for identification of both bacterial diseases of tomato and pepper. Pathogenicity tests, disease index, germination test and bacterial population counts were carried out to evaluate the severity of both bacterial leaf spot and bacterial speck of tomato and pepper.
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