Production and comparison of peptide siderophores from strains of distantly related pathovars of Pseudomonas syringae and Pseudomonas viridiflava LMG 2352

Article Abstract:

Pathovars of Pseudomonas syringae and Pseudomonas viridiflava produce siderophores that are different from typical pyoverdins. The siderophores produced had the same amino acid composition and were used indiscriminately by all pathovars studied.

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Characterization of fluorescent and nonfluorescent peptide siderophores produced by Pseudomonas synringae strains and their potential use in strain identification

Article Abstract:

Pseudomonas syringae strains have a pyoverdin chromophore in the fluorescent siderophore and a dihydropyoverdin chromophore in the nonfluorescent siderophore. However, when iron chelated, the siderophores behave differently than other such siderophores. These differences could be used to distinguish one species from another.

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Biological and molecular detection of toxic lipodepsipeptide-producing Pseudomonas syringae strains and PCR identification in plants

Article Abstract:

A rapid test that can employed in determining the production of toxic lipodepsipeptides by strains of Pseudomonas syringae is described. An original polymerase chain reaction (PCR) approach for specifically detecting the presence of the syrD gene, as well as a PCR method for detecting P syringae pv syringae in diseased cherry twigs, were also described. The procedure allows for identification of two pathovars of P syringae by the use of two different PCR tests, indicating that it can be applied to other plants and pathogens.

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