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Characterization of Indigoidine Biosynthetic Genes in Erwinia chrysanthemi and Role of This Blue Pigment in Pathogenicity
In the plant-pathogenic bacterium Erwinia chrysanthemi, indigoidine production conferred an increased resistance to oxidative stress, indicating that indigoidsine may protect the bacteria against the reactive oxygen species generated during the plant defense response.
Genome Sequence of the Plant-Pathogenic Bacterium Dickeya dadantii 3937
The sequence of strain 3937, a strain widely used as a model system for research on the molecular biology and pathogenicity of this group of bacteria, is presented.
SufC: an unorthodox cytoplasmic ABC/ATPase required for [Fe—S] biogenesis under oxidative stress
SufC is established as an unorthodox ATPase of the ABC superfamily that is located in the cytosol, wherein it interacts with both SufB and SufD and is found to be necessary for the activity of enzymes containing oxygen‐labile [Fe—S] clusters, but dispensable for glutamate synthase, which contains an oxidatively stable [Fe-S] cluster.
Dual role of desferrioxamine in Erwinia amylovora pathogenicity.
- A. Dellagi, M. Brisset, J. Paulin, D. Expert
- BiologyMolecular plant-microbe interactions : MPMI
- 1 August 1998
It was found that production of DFO in E. amylovora during pathogenesis is not only a critical function for iron acquisition, but can play a role in the oxidative burst elicited by the bacteria.
The role of secretion systems and small molecules in soft-rot Enterobacteriaceae pathogenicity.
This review integrates new information about the role protein secretion and detection and production of ions and small molecules play in soft-rot pathogenicity.
Erwinia chrysanthemi requires a second iron transport route dependent of the siderophore achromobactin for extracellular growth and plant infection
Interestingly, iron transport mediated by achromobactin or a closely related siderophore probably exists in other phytopathogenic bacterial species such as Pseudomonas syringae.
Siderophore-mediated upregulation of Arabidopsis ferritin expression in response to Erwinia chrysanthemi infection.
- A. Dellagi, Martine Rigault, D. Expert
- Biology, Environmental ScienceThe Plant journal : for cell and molecular…
- 22 June 2005
The data show that ferritin accumulation during infection of Arabidopsis by E. chrysanthemi is a basal defense mechanism which is mainly activated by bacterial siderophores, and the potential role of sidingophores in this process is discussed.
PecS Is a Global Regulator of the Symptomatic Phase in the Phytopathogenic Bacterium Erwinia chrysanthemi 3937
The pecS mutant provokes symptoms more rapidly and with more efficiency than the wild-type strain, indicating that PecS plays a critical role in the switch from the asymptomatic phase to the symptomatic phase.
WITHHOLDING AND EXCHANGING IRON: Interactions Between Erwinia spp. and Their Plant Hosts.
- D. Expert
- BiologyAnnual review of phytopathology
How iron controls the activities of plant pathogens is discussed, because of its unique position in biological systems, and the production of siderophores by pathogens not only represents a powerful strategy to acquire iron from host tissues but may also act as a protective agent against iron toxicity.
SoxR‐dependent response to oxidative stress and virulence of Erwinia chrysanthemi: the key role of SufC, an orphan ABC ATPase
- L. Nachin, M. El Hassouni, L. Loiseau, D. Expert, F. Barras
- BiologyMolecular microbiology
- 1 February 2001
The possibility that SufC is a versatile ATPase that can associate either with the other Suf proteins to form a Fe–S cluster‐assembling machinery or with membrane proteins encoded elsewhere in the chromosome to form an Fe-S ABC exporter is discussed.