Abstract
The Gram-positive plant pathogen Rhodococcus fascians has a broad host range and induces malformations without killing its host (7). To provoke symptoms the bacteria require the action of virulence genes located on a linear plasmid (pFiDl88). Three distinct pathogenicity loci have been characterised on pFiD188: fas, att and hyp (1). The fas operon is essential for disease development and its expression is tightly regulated by several regulatory proteins and a multitude of environmental signals. The fas locus encodes the enzymatic machinery for the synthesis of a signal molecule that disrupts the hormone balance of the host plant (2,6), which ultimately results in the formation of the most typical symptom a leafy gall. The two other loci are required for balanced disease: mutants in the att region have an attenuated virulence, while mutants in the hyp locus are hypervirulent.
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© 2001 Springer Science+Business Media Dordrecht
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Vereecke, D., Cornelis, K., Van Montagu, M., Jaziri, M., Holsters, M., Goethals, K. (2001). Metabolic Colonisation: the Fate of a Leafy Gall. In: De Boer, S.H. (eds) Plant Pathogenic Bacteria. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0003-1_37
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DOI: https://doi.org/10.1007/978-94-010-0003-1_37
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