Chemotaxis is required for virulence and competitive fitness of the bacterial wilt pathogen Ralstonia solanacearum.

Abstract excerpt

Ralstonia solanacearum, a soilborne plant pathogen of considerable economic importance, invades host plant roots from the soil. Qualitative and quantitative chemotaxis assays revealed that this bacterium is specifically attracted to diverse amino acids and organic acids, and especially to root exudates from the host plant tomato. Exudates from rice, a nonhost plant, were less attractive. Eight different strains...

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