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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1991-9-12
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pubmed:abstractText |
Pseudomonas solanacearum, the causal agent of bacterial wilt, has been classified into three races based on host range and into five biovars based on physiological properties. Strains of race 3 belong exclusively to biovar 2 and primarily affect potatoes. Although this race is thought to have originated in the Andean highlands, it has unusual physiological properties that make it a potential threat to potatoes grown at the cooler latitudes worldwide. Consequently, there is need for a rapid and sensitive method for detection of race 3 strains. We have used subtractive hybridization to enrich for race 3-specific DNA sequences in total race 3 genomic DNA, and thereby obtained a 2 kb clone homologous to DNA from all 28 race 3 strains tested, but with only five of 90 non-race 3 strains. In addition, two larger regions of the genome, containing a minimum of 23 kb of DNA, are also specific for race 3. Deletion of this DNA did not affect virulence. This race 3-specific DNA is a potentially useful diagnostic tool for the detection of race 3 strains.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0026-8925
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
227
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
401-10
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1865877-Blotting, Southern,
pubmed-meshheading:1865877-DNA, Bacterial,
pubmed-meshheading:1865877-DNA Probes,
pubmed-meshheading:1865877-Genes, Bacterial,
pubmed-meshheading:1865877-Kanamycin,
pubmed-meshheading:1865877-Nucleic Acid Hybridization,
pubmed-meshheading:1865877-Plasmids,
pubmed-meshheading:1865877-Pseudomonas,
pubmed-meshheading:1865877-Restriction Mapping,
pubmed-meshheading:1865877-Species Specificity,
pubmed-meshheading:1865877-Transformation, Genetic,
pubmed-meshheading:1865877-Virulence
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pubmed:year |
1991
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pubmed:articleTitle |
The use of subtractive hybridization to obtain a DNA probe specific for Pseudomonas solanacearum race 3.
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pubmed:affiliation |
Department of Plant Pathology, University of Wisconsin-Madison 53706.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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