| Title |
Streptomyces scabiei and its toxin thaxtomin A induce scopoletin biosynthesis in tobacco and Arabidopsis thaliana
|
|---|---|
| Published in |
Plant Cell Reports, October 2009
|
| DOI | 10.1007/s00299-009-0792-1 |
| Pubmed ID | |
| Authors |
Sylvain Lerat, Amadou H. Babana, Mohamed El Oirdi, Abdelbassed El Hadrami, Fouad Daayf, Nathalie Beaudoin, Kamal Bouarab, Carole Beaulieu |
| Abstract |
Streptomyces scabiei is the predominant causal agent of common scab of potato in North America. The virulence of common scab-causing streptomycetes relies on their capacity to synthesize thaxtomins. In this study, the effects of S. scabiei infection and of thaxtomin A, the main toxin produced by S. scabiei, were tested for the elicitation of plant defense molecules in the model plants tobacco (Nicotiana tabacum) and Arabidopsis thaliana. Tobacco leaves infected with spores of S. scabiei strain EF-35 or infiltrated with purified thaxtomin A produced a blue fluorescent compound that was not detected in leaves infiltrated with spores of a S. scabiei mutant deficient in thaxtomin A biosynthesis. Thin layer chromatography and high performance liquid chromatography identified this fluorescent compound as scopoletin, a plant defense phytoalexin. Arabidopsis seedlings grown in liquid medium also excreted scopoletin as a reaction to S. scabiei and thaxtomin A. The effects of the presence of scopoletin on S. scabiei were also investigated. The phytoalexin scopoletin caused a slight reduction of bacterial growth and a severe decrease of thaxtomin A production. Scopoletin was shown to inhibit thaxtomin A production by repression of a gene involved in the toxin biosynthesis. |
Mendeley readers
The data shown below were compiled from readership statistics for 58 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| India | 1 | 2% |
| Unknown | 57 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 14 | 24% |
| Student > Master | 12 | 21% |
| Researcher | 7 | 12% |
| Student > Bachelor | 6 | 10% |
| Student > Doctoral Student | 4 | 7% |
| Other | 7 | 12% |
| Unknown | 8 | 14% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 31 | 53% |
| Biochemistry, Genetics and Molecular Biology | 8 | 14% |
| Environmental Science | 2 | 3% |
| Chemistry | 2 | 3% |
| Economics, Econometrics and Finance | 1 | 2% |
| Other | 3 | 5% |
| Unknown | 11 | 19% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 23 February 2011.
All research outputs
#7,454,951
of 22,790,780 outputs
Outputs from Plant Cell Reports
#771
of 2,182 outputs
Outputs of similar age
#33,939
of 94,259 outputs
Outputs of similar age from Plant Cell Reports
#3
of 6 outputs
Altmetric has tracked 22,790,780 research outputs across all sources so far. This one is in the 44th percentile – i.e., 44% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,182 research outputs from this source. They receive a mean Attention Score of 4.1. This one is in the 34th percentile – i.e., 34% of its peers scored the same or lower than it.
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