PHYSIOLOGICAL RACES OF <i>PSEUDOMONAS PHASEOLICOLA</i> CAUSING HALO BLIGHT OF BEAN

Epton, H. A. S.; Deverall, B. J.

doi:10.1111/j.1365-3059.1965.tb00275.x

Cited by 8 publications

(3 citation statements)

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“…THE existence of two physiological races of Pseudomonas phaseolicola in the U.S.A. was reported by Walker and Patel (1964); and Epton and Deverall (1965) have shown that both races are widespread and are present in the United Kingdom. In a recent study by Patel and Walker (1965) of 19 isolates obtained from countries outside the U.S.A. 18 were race 1, but 24 of the 25 isolates from crops grown in Wisconsin in 1964 were race 2.…”

Section: Introductionmentioning

confidence: 80%

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SOURCES OF INFECTION BY PHYSIOLOGICAL RACES OF PSEUDOMONAS PHASEOLICOLA BURKHOLDER (DOWSON) IN DWARF BEANS

Wharton

1967

Plant Pathology

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Section: Introductionmentioning

confidence: 80%

“…Meteor and Tendercrop were included as control cultivars susceptible to both races. Symptoms of resistance and susceptibility have been described by Epton and Deverall (1965).…”

Section: Race Typingmentioning

confidence: 99%

SOURCES OF INFECTION BY PHYSIOLOGICAL RACES OF PSEUDOMONAS PHASEOLICOLA BURKHOLDER (DOWSON) IN DWARF BEANS

Wharton

1967

Plant Pathology

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“…It is tempting to speculate that the first identified strain of race 2 was the putative ancestor with the first deletion that eliminated avrPphF. Isolates belonging to race 2 were soon described in other parts of the world (8,16,37), and in subsequent years new races were described. So far, nine races of the pathogen have been characterized (24,47), and there is evidence that further differentiation may be possible (14,29,33,38,47).…”

Section: Discussionmentioning

confidence: 99%

Changes in Race-Specific Virulence in Pseudomonas syringae pv. phaseolicola Are Associated with a Chimeric Transposable Element and Rare Deletion Events in a Plasmid-Borne Pathogenicity Island

Rivas

Mansfıeld

Tsiamis

et al. 2005

Appl Environ Microbiol

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Virulence for bean and soybean is determined by effector genes in a plasmid-borne pathogenicity island (PAI) in race 7 strain 1449B of Pseudomonas syringae pv. phaseolicola. One of the effector genes, avrPphF, confers either pathogenicity, virulence, or avirulence depending on the plant host and is absent from races 2, 3, 4, 6, and 8 of this pathogen. Analysis of cosmid clones and comparison of DNA sequences showed that the absence of avrPphF from strain 1448A is due to deletion of a continuous 9.5-kb fragment. The remainder of the PAI is well conserved in strains 1448A and 1449B. The left junction of the deleted region consists of a chimeric transposable element generated from the fusion of homologs of IS1492 from Pseudomonas putida and IS1090 from Ralstonia eutropha. The borders of the deletion were conserved in 66 P. syringae pv. phaseolicola strains isolated in different countries and representing the five races lacking avrPphF. However, six strains isolated in Spain had a 10.5-kb deletion that extended 1 kb further from the right junction. The perfect conservation of the 28-nucleotide right repeat of the IS1090 homolog in the two deletion types and in the other 47 insertions of the IS1090 homolog in the 1448A genome strongly suggests that the avrPphF deletions were mediated by the activity of the chimeric mobile element. Our data strongly support a clonal origin for the races of P. syringae pv. phaseolicola lacking avrPphF.

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Effect of bacterial inoculation of bean and pea leaves on the accumulation of phaseollin and pisatin

Stholasuta

Bailey

Severin

et al. 1971

Physiological Plant Pathology

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PHYSIOLOGICAL RACES OF PSEUDOMONAS PHASEOLICOLA CAUSING HALO BLIGHT OF BEAN

Cited by 8 publications

References 0 publications

SOURCES OF INFECTION BY PHYSIOLOGICAL RACES OF PSEUDOMONAS PHASEOLICOLA BURKHOLDER (DOWSON) IN DWARF BEANS

SOURCES OF INFECTION BY PHYSIOLOGICAL RACES OF PSEUDOMONAS PHASEOLICOLA BURKHOLDER (DOWSON) IN DWARF BEANS

Changes in Race-Specific Virulence in Pseudomonas syringae pv. phaseolicola Are Associated with a Chimeric Transposable Element and Rare Deletion Events in a Plasmid-Borne Pathogenicity Island

Effect of bacterial inoculation of bean and pea leaves on the accumulation of phaseollin and pisatin

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