Study on the Response of some Solanaceous Plants to Ralstonia solanacearum Biovars 2A and 2T

Vahideh Hasabi

Abstract


Ralstonia solanacearum is a very destructive bacterial plant pathogen that causes wilt disease in solanaceae crops. To study the response of potato, tomato, eggplant and petunia to bacterial wilt disease, two isolates representing biovars 2A and 2T of R. solanacearum were evaluated for their pathogenicity aggressiveness and tobacco hypersensitivity response (HR) at two different temperature regimes. The response of plants was estimated by appearance of wilting symptoms and bacterial density in the xylems of inoculated plants over a four weeks period. The results indicated that isolates representing biovar 2T caused less disease in all the species and cultivars compared to isolates biovar 2A, at both temperature conditions and also, there were significant differences in susceptibility to biovars 2A and 2T of R. solanacearum among tomato, eggplant and petunia and potato cultivars.

Keywords


Ralstonia solanacearum; Race 3; Biovar 2A; Biovar 2T; Solanaceous plants

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DOI: https://doi.org/10.24925/turjaf.v3i2.80-83.199

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This work is licensed under Creative Commons Attribution 4.0 International License

ISSN: 2148-127X

Turkish JAF Sci.Tech.

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