Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.
SNM Organization

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 26 October 2007:
Vol. 318. no. 5850, pp. 645 - 648
DOI: 10.1126/science.1144958
Prev | Table of Contents | Next

Reports

Plant Pathogen Recognition Mediated by Promoter Activation of the Pepper Bs3 Resistance Gene

Patrick Römer, Simone Hahn, Tina Jordan,* Tina Strauß, Ulla Bonas, Thomas Lahaye{dagger}

Plant disease resistance (R) proteins recognize matching pathogen avirulence proteins. Alleles of the pepper R gene Bs3 mediate recognition of the Xanthomonas campestris pv. vesicatoria (Xcv) type III effector protein AvrBs3 and its deletion derivative AvrBs3{Delta}rep16. Pepper Bs3 and its allelic variant Bs3-E encode flavin monooxygenases with a previously unknown structure and are transcriptionally activated by the Xcv effector proteins AvrBs3 and AvrBs3{Delta}rep16, respectively. We found that recognition specificity resides in the Bs3 and Bs3-E promoters and is determined by binding of AvrBs3 or AvrBs3{Delta}rep16 to a defined promoter region. Our data suggest a recognition mechanism in which the Avr protein binds and activates the promoter of the cognate R gene.

Institute of Biology, Department of Genetics, Martin-Luther-University Halle-Wittenberg, D-06099 Halle (Saale), Germany.

* Present address: Institute of Plant Biology, University of Zürich, Zollikerstrasse 107, 8008 Zürich, Switzerland.

{dagger} To whom correspondence should be addressed. E-mail: lahaye{at}genetik.uni-halle.de

Read the Full Text


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Nuclear Trafficking During Plant Innate Immunity.
J. Liu and G. Coaker (2008)
Mol Plant 1, 411-422
   Abstract »    Full Text »    PDF »
Promoters enter plant pathogen fray.
N. LeBrasseur (2007)
J. Cell Biol. 179, 570
   Full Text »    PDF »
A Bacterial Effector Acts as a Plant Transcription Factor and Induces a Cell Size Regulator.
S. Kay, S. Hahn, E. Marois, G. Hause, and U. Bonas (2007)
Science 318, 648-651
   Abstract »    Full Text »    PDF »


ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)