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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
1989-11-7
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pubmed:abstractText |
The activation of the Agrobacterium virulence system is known to be induced by certain phenolic compounds. We have tested the vir-inducing ability of fifty compounds, by using a virB-lacZ gene fusion, and analysed the relationship between structure and activity of these compounds. In this way we have identified several new vir-inducers: coniferylalcohol, 3,5-dimethoxy-4-hydroxybenzene, homovanillic acid, ferulic acid, 3-ethoxy-4-hydroxybenzaldehyde and guaiacol, all of which are compounds with strong or moderate activity and four compounds with weak vir-inducing activity. In view of the specificity of vir-inducers, our data extended observations of others and enabled us to define the specific structural features of a vir-inducer molecule. In addition we show here that induction of the octopine Ti vir-genes is (i) optimal at 29 degrees C and totally abolished at 37 degrees C, and (ii) strongly inhibited at low concentrations of sodium chloride. The implications for plant transformation are discussed.
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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 |
0950-382X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
3
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
969-77
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2796734-Acetophenones,
pubmed-meshheading:2796734-Gene Expression Regulation,
pubmed-meshheading:2796734-Hydrogen-Ion Concentration,
pubmed-meshheading:2796734-Kinetics,
pubmed-meshheading:2796734-Molecular Structure,
pubmed-meshheading:2796734-Mutation,
pubmed-meshheading:2796734-Rhizobium,
pubmed-meshheading:2796734-Sodium Chloride,
pubmed-meshheading:2796734-Structure-Activity Relationship,
pubmed-meshheading:2796734-Temperature
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pubmed:year |
1989
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pubmed:articleTitle |
Specificity of signal molecules in the activation of Agrobacterium virulence gene expression.
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pubmed:affiliation |
Department of Plant Molecular Biology, Leiden University, The Netherlands.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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