| Autor: |
M. Van Montagu, Karen Cornelis, Danny Vereecke, Koen Goethals, M. Holsters, Mondher El Jaziri |
| Rok vydání: |
2001 |
| Předmět: |
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| Zdroj: |
Plant Pathogenic Bacteria ISBN: 9789401038584 |
| DOI: |
10.1007/978-94-010-0003-1_37 |
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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