The RAR1 Interactor SGT1, an Essential Component of R Gene-Triggered Disease Resistance
In: Science, Jg. 295 (2002-03-15), S. 2073-2076
Online
unknown
Zugriff:
Plant disease resistance ( R ) genes trigger innate immune responses upon pathogen attack. RAR1 is an early convergence point in a signaling pathway engaged by multiple R genes. Here, we show that RAR1 interacts with plant orthologs of the yeast protein SGT1, an essential regulator in the cell cycle. Silencing the barley gene Sgt1 reveals its role in R gene–triggered, Rar1 -dependent disease resistance. SGT1 associates with SKP1 and CUL1, subunits of the SCF (Skp1-Cullin–F-box) ubiquitin ligase complex. Furthermore, the RAR1-SGT1 complex also interacts with two COP9 signalosome components. The interactions among RAR1, SGT1, SCF, and signalosome subunits indicate a link between disease resistance and ubiquitination.
Titel: |
The RAR1 Interactor SGT1, an Essential Component of R Gene-Triggered Disease Resistance
|
---|---|
Autor/in / Beteiligte Person: | Freialdenhoven, Andreas ; Shirasu, Ken ; Kitagawa, Katsumi ; Azevedo, Cristina ; Sadanandom, Ari ; Schulze-Lefert, Paul |
Link: | |
Zeitschrift: | Science, Jg. 295 (2002-03-15), S. 2073-2076 |
Veröffentlichung: | American Association for the Advancement of Science (AAAS), 2002 |
Medientyp: | unknown |
ISSN: | 1095-9203 (print) ; 0036-8075 (print) |
DOI: | 10.1126/science.1067554 |
Schlagwort: |
|
Sonstiges: |
|