| Autor: |
Cesbron, Sophie, Brisset, Marie-Noelle, Tharaud, Michel, Paulin, J Pierre |
| Přispěvatelé: |
Unité de recherche Pathologie végétale et phytobactériologie, Institut National de la Recherche Agronomique (INRA), ProdInra, Migration |
| Jazyk: |
angličtina |
| Rok vydání: |
2004 |
| Předmět: |
|
| Zdroj: |
Acta Horticulturae |
| Popis: |
International audience; Several previous works seem to indicate that flagellar and hrp genes of Erwinia amylovora are counter-regulated. In the present paper, this hypothesis is confirmed by the analysis of several parameters linked to flagella synthesis in E. amylovora grown in hrp- or non hrp-inducing conditions. Moreover, amongst the various hrp mutants tested, the hrpL regulatory mutant only was more motile, produced more flagellins and showed more flagella than the wild-type strain when cultivated on a hrp-inducing medium. A plasmid carrying hrpL introduced into a hrpL mutant decreased its motility and flagellin production. These results strongly suggest that flagellar synthesis of E. amylovora is under the negative control of HrpL, a positive regulator of hrp genes. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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