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 8 July 1988:
Vol. 241. no. 4862, pp. 208 - 210
DOI: 10.1126/science.241.4862.208
Prev | Table of Contents | Next

Articles

Cell-Autonomous Recognition of the Rust Pathogen Determines Rp1-Specified Resistance in Maize

JEFFREY L. BENNETZEN 1, WILLIAM E. BLEVINS 2, and ALBERT H. ELLINGBOE 3

1 Department of Biological Sciences, Purdue University, West Lafayette, IN 47907.
2 School of Veterinary Medicine, Purdue University, West Lafayette, IN 47907.
3 Departments of Plant Pathology and Genetics, University of Wisconsin, Madison, WI 53706.

The Rp1 gene of maize determines resistance to the leaf rust pathogen Puccinia sorghi. X-ray treatment of heterozygous (Rp1 Oy/rp1 oy) maize embryos generated seedlings with yellow sectors lacking. Rp1. Yellow sectored seedlings inoculated with rust spores gave rust pustule formation in yellow (Rp1-lacking) sectors and hypersensitive resistance in green tissues, thereby demonstrating that the Rp1 gene product is cellautonomous in its action. In cases where the hypersensitive reaction was initiated in green (Rp1) tissue next to a yellow sector, the hypersensitive response appeared to be propagated poorly, if at all, through Rp1-lacking cells.

Submitted on October 13, 1987
Accepted on April 13, 1988


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Phase Change and the Regulation of Shoot Morphogenesis in Plants.
R. S. Poethig (1990)
Science 250, 923-930
   Abstract »    PDF »


ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

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