Cited by 2,568Plant-Microbe Interactions and ImmunityInsect-Plant Interactions and ControlPlant Pathogenic Bacteria Studies

Salicylic acid, a multifaceted hormone to combat disease

Vlot, A. Corina, Dempsey, D'Maris Amick, Klessig, Daniel F.·2009·Annual Review of Phytopathology

Abstract

For more than 200 years, the plant hormone salicylic acid (SA) has been studied for its medicinal use in humans. However, its extensive signaling role in plants, particularly in defense against pathogens, has only become evident during the past 20 years. This review surveys how SA in plants regulates both local disease resistance mechanisms, including host cell death and defense gene expression, and systemic acquired resistance (SAR). Genetic studies reveal an increasingly complex network of proteins required for SA-mediated defense signaling, and this process is amplified by several regulatory feedback loops. The interaction between the SA signaling pathway and those regulated by other plant hormones and/or defense signals is also discussed.

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Crossref · 10.1146/annurev.phyto.050908.135202

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Authors
Vlot, A. C., Dempsey, D. A., & Klessig, D. F.
Affiliations
  • Helmholtz Munich (DE)
  • Boyce Thompson Institute (US)
Venue
Annual Review of Phytopathology
Published
2009-09-01
Volume
47
Issue
1
Pages
177-206
ISSN
  • 0066-4286 (ISSN-L)
  • 1545-2107
OpenAlex
W2143014195
Cited by
2,568
References
245
Citations by year
2026: 130 · 2025: 145 · 2024: 140 · 2023: 172 · 2022: 218 · 2021: 210 · 2020: 227 · 2019: 167 · 2018: 159 · 2017: 142 · 2016: 134 · 2015: 150 · 2014: 158 · 2013: 150 · 2012: 119
FWCI
7.54
Type
journal article
Language
en
Open access
closed
Locations
  • Annual Review of Phytopathology (publishedVersion)
  • PubMed (publishedVersion)
  • Max Planck Institute for Plasma Physics (submittedVersion)
  • Max Planck Digital Library (submittedVersion)
  • Site cant be reached (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
  • National Science Foundation
  • Institute of Materials Research and Engineering
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant-Microbe Interactions and Immunity
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect-Plant Interactions and Control
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Pathogenic Bacteria Studies
Keywords
salicylic acid, plant disease resistance, systemic acquired resistance, plant defense signaling, host cell death, defense gene expression, plant hormones, feedback loops, plant-pathogen interaction
MeSH terms
Plant Diseases, Plant Growth Regulators, Plant Proteins, Plants, Signal Transduction, Salicylic Acid

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