A Central Role of Salicylic Acid in Plant Disease Resistance

@article{Delaney1994ACR,
  title={A Central Role of Salicylic Acid in Plant Disease Resistance},
  author={Terrence P. Delaney and Scott Uknes and Bernard Vernooij and Leslie Friedrich and Kris Weymann and David Vincent Negrotto and Tom Gaffney and Manuela Gut-Rella and Helmut Kessmann and Eric R Ward and John A. Ryals},
  journal={Science},
  year={1994},
  volume={266},
  pages={1247 - 1250}
}
Transgenic tobacco and Arabidopsis thaliana expressing the bacterial enzyme salicylate hydroxylase cannot accumulate salicylic acid (SA). This defect not only makes the plants unable to induce systemic acquired resistance, but also leads to increased susceptibility to viral, fungal, and bacterial pathogens. The enhanced susceptibility extends even to host-pathogen combinations that would normally result in genetic resistance. Therefore, SA accumulation is essential for expression of multiple… 
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The mechanism whereby SA induces plant resistance depends on the ability of this compound to inhibit the enzymes of the antioxidant system of plants, which results in the accumulation of active oxygen species and the expression of defense genes.
Overproduction of salicylic acid in plants by bacterial transgenes enhances pathogen resistance
TLDR
Tobacco is transformed with two bacterial genes coding for enzymes that convert chorismate into SA by a two-step process and the CSA plants showed a resistance to viral and fungal infection resembling SAR in nontransgenic plants.
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TLDR
The development of resistance in tissues of vegetating plants after presowing treatment of the plant seeds with elicitors is a manifestation of SIR.
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TLDR
A mechanism for co-ordination of phytohormone signals that together constitute a susceptible response to pathogens are indicated.
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TLDR
The role of salicylic acid and jasmonic acid in pathogen defence responses with special emphasis on their function in the solanaceous plant potato is reviewed.
Signaling of systemic acquired resistance in tobacco depends on ethylene perception.
TLDR
It is concluded that ethylene perception is required to generate the systemic signal molecules in TMV-infected leaves that trigger SA accumulation, defense gene expression, and SAR development in uninfected leaves.
The Molecular Biology of Systemic Acquired Resistance
Depletion of in planta salicylic acid in transgenic salicylate hydroxylase (NahG)­containing plants, has shown that this phenolic compound is essential for expression of several modes of plant
Abscisic acid activates pathogenesis-related defence gene signalling in Lentil
TLDR
Plants exhibit complex defense responses against pathogens to either prevent them from entering the plant or obtaining nutrients for growth and reproduction, which may be pre-formed and/or induced.
Salicylate-independent lesion formation in Arabidopsis lsd mutants.
TLDR
The loss of SAR gene expression and disease resistance in nahG-expressing lsd mutants indicates that these traits are dependent upon SA accumulation in the SAR signal transduction pathway.
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References

SHOWING 1-10 OF 39 REFERENCES
Requirement of Salicylic Acid for the Induction of Systemic Acquired Resistance
TLDR
Salicylic acid is essential for the development of systemic acquired resistance in tobacco and was investigated in transgenic tobacco plants harboring a bacterial gene encoding salicylate hydroxylase.
Acquired resistance in Arabidopsis.
TLDR
Arabidopsis, a tractable genetic system, is shown to develop resistance to a bacterial and a fungal pathogen following 2,6-dichloroisonicotinic acid (INA) treatment and three proteins that accumulated to high levels in the apoplast in response to INA treatment were purified and characterized.
Transgenic Plants with Enhanced Resistance to the Fungal Pathogen Rhizoctonia solani
TLDR
Transgenic tobacco seedlings constitutively expressing a bean chitinase gene under control of the cauliflower mosaic virus 35S promoter showed an increased ability to survive in soil infested with the fungal pathogen Rhizoctonia solani and delayed development of disease symptoms.
Increased tolerance to two oomycete pathogens in transgenic tobacco expressing pathogenesis-related protein 1a.
TLDR
It is demonstrated that constitutive high-level expression of PR-1a in transgenic tobacco results in tolerance to infection by two oomycete pathogens, Peronospora tabacina and Phytophthora parasitica var.
Arabidopsis is susceptible to infection by a downy mildew fungus.
TLDR
The differential interaction of an isolate of P. parasitica with two strains of Arabidopsis opens up the possibility of cloning resistance determinants from a host that is very amenable to genetic and molecular analysis.
Functional homologs of the Arabidopsis RPM1 disease resistance gene in bean and pea.
TLDR
It is demonstrated that a bacterial avirulence (avr) gene function, avrPpiA1, from the pea pathogen Pseudomonas syringae pv pisi, is recognized by some, but not all, genotypes of Arabidopsis, and therefore bean, pea, and conceivably other crop species contain functional and potentially molecular homologs of RPM1.
Arabidopsis thaliana as a model for plant-pathogen interactions
TLDR
This work used Arabidopsis thaliana as a model for plant-pathogen interactions and found it to be a good model for understanding phytochemical signaling in response to E. coli.
Induction of Arabidopsis defense genes by virulent and avirulent Pseudomonas syringae strains and by a cloned avirulence gene.
TLDR
The results suggest that the Arabidopsis PAL and BG genes may be activated by distinct signal transduction pathways and show that differences in plant gene induction by virulent and avirulent strains can be attributed to a cloned presumptive avr gene.
Coordinate Gene Activity in Response to Agents That Induce Systemic Acquired Resistance.
TLDR
It is shown that the onset of SAR correlates with the coordinate induction of nine classes of mRNAs, consistent with the hypothesis that induced resistance results at least partially from coordinate expression of these SAR genes.
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