ETIOLOGY OF BACTERIAL LEAF SPOT OF TOMATO IN VARAMIN

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GHOBAKHLOU A.A.; RAHIMIAN H.

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Journal: IRANIAN JOURNAL OF PLANT PATHOLOGY Year:2000 | Volume:36 | Issue:3-4 Page(s): 329-342

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Title

ETIOLOGY OF BACTERIAL LEAF SPOT OF TOMATO IN VARAMIN

Author(s)

GHOBAKHLOU A.A. | RAHIMIAN H. | Issue Writer Certificate

Keywords

TOMATOQ2

BACTERIAL SPECKQ4

SYRINGAE LEAF SPOTQ4

STRAINSQ4

ETIOLOGYQ4

VARAMINQ4

IRANQ4

Abstract

Bacterial speck of TOMATO, cused by Pseudomonas syringae pv. TOMATO, was reported from VARAMIN in 1994. Subsequent surveys of TOMATO fields in VARAMIN during the spring and summer months in 1995-96 revealed variabilitis in symptoms type and severity of infection among plants within and between farms. Disease symptoms appeared as regular or irregular brown to black lesions on leaf, sepal, peduncle, branches and stems. Specks, with or without chlorotic haloes, appeared on fruits. Fifty three STRAINS were isolated from affected TOMATO plants and their phenotypic features and electrophoretic patterns of cell proteins were compared. Two pathovars of Pseudomonas syringae were found to be involved. One group was identified as P. syringae pv. TOMATO (Pst) (causing BACTERIAL SPECK of TOMATO). Their phenotypic features were very similar too but different from the type strain with respect to hydrolysis of esculine, tolerance to 5% NaCI, tyrosinase activity, utilization of lactate, L-histidine and adenine and production of mucoid growth on yeast dextrose calcium carbonate agar (YDC). Their electrophoretic profiles of cell proteins were similar but the STRAINS could be differentiated into two groups, based on the relative mobility and intensity of a few protein bands. The second group of STRAINS were indentified as syringom deficient STRAINS of P. syringae pv. syringae (Pss) causing SYRINGAE LEAF SPOT. The electrophoretic profiles of cell proteins of the two Pss STRAINS were identical and very similar to that of a Pss strain isolated from peach (prunus persica)

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APA: Copy

GHOBAKHLOU, A.A., & RAHIMIAN, H.. (2000). ETIOLOGY OF BACTERIAL LEAF SPOT OF TOMATO IN VARAMIN. IRANIAN JOURNAL OF PLANT PATHOLOGY, 36(3-4), 329-342. SID. https://sid.ir/paper/48281/en

Vancouver: Copy

GHOBAKHLOU A.A., RAHIMIAN H.. ETIOLOGY OF BACTERIAL LEAF SPOT OF TOMATO IN VARAMIN. IRANIAN JOURNAL OF PLANT PATHOLOGY[Internet]. 2000;36(3-4):329-342. Available from: https://sid.ir/paper/48281/en

IEEE: Copy

A.A. GHOBAKHLOU, and H. RAHIMIAN, “ETIOLOGY OF BACTERIAL LEAF SPOT OF TOMATO IN VARAMIN,” IRANIAN JOURNAL OF PLANT PATHOLOGY, vol. 36, no. 3-4, pp. 329–342, 2000, [Online]. Available: https://sid.ir/paper/48281/en

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