Abstract
Systemic acquired resistance (SAR) is a type of pathogen-induced broad-spectrum resistance in plants. During SAR, primary infection-induced rapid generation and transportation of mobile signal(s) 'prepare' the rest of the plant for subsequent infections. Several, seemingly unrelated, mobile chemical inducers of SAR have been identified, at least two of which function in a feed-back regulatory loop with a lipid transfer-like protein. Signal(s) perception in the systemic tissues relies on the presence of an intact cuticle, the waxy layer covering all aerial parts of the plant. SAR results in chromatin modifications, which prime systemic tissues for enhanced and rapid signaling derived from salicylic acid, which along with its signaling components is key for SAR induction. This review summarizes recent findings related to SAR signal generation, movement, and perception.
| Original language | English |
|---|---|
| Pages (from-to) | 527-533 |
| Number of pages | 7 |
| Journal | Current Opinion in Plant Biology |
| Volume | 16 |
| Issue number | 4 |
| DOIs | |
| State | Published - Aug 2013 |
Bibliographical note
Funding Information:This review was made possible by the tireless contributions of members (past and present) of the Kachroo laboratories who contributed to this work, contributions (cited and noncited) from the SAR research community that have resulted in our current understanding of SAR, critical review of the manuscript by Pradeep Kachroo, and financial support from the National Science Foundation (IOS, 0749731) and the United Soybean Board (1244). We sincerely regret the omission of other eminent contributions due to space limitations.
ASJC Scopus subject areas
- Plant Science