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.

Sci. STKE, 2 September 2003
Vol. 2003, Issue 198, p. tw341
[DOI: 10.1126/stke.2003.198.tw341]


PLANT BIOLOGY Plant Pathogen Target

Many pathogens of mammals and plants use a conserved delivery system, the type III secretion system, to inject virulence factors into their hosts. However, few of the host targets are known, and how the plant surveillance system works is not well understood. Shao et al. show in Arabidopsis that a protein kinase, PBS1, is the host target for a Pseudomonas syringae virulence protein, AvrPphB, a cysteine protease that cleaves PBS1. The resulting fragment of PBS1 autophosphorylates and, possibly in conjunction with AvrPphB, is then recognized by the plant resistance protein RPS5.

F. Shao, C. Golstein, J. Ade, M. Stoutemyer, J. E. Dixon, R. W. Innes, Cleavage of Arabidopsis PBS1 by a bacterial type III effector. Science 301, 1230-1233 (2003). [Abstract] [Full Text]

Citation: Plant Pathogen Target. Sci. STKE 2003, tw341 (2003).

To Advertise     Find Products

Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882