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The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.

Salicylic Acid Induction–Deficient Mutants of Arabidopsis Express PR-2 and PR-5 and Accumulate High Levels of Camalexin after Pathogen Inoculation

Open access
Nawrath, Christiane, Métraux, Jean-Pierre·1999·The Plant Cell

Abstract

In Arabidopsis, systemic acquired resistance against pathogens has been associated with the accumulation of salicylic acid (SA) and the expression of the pathogenesis-related proteins PR-1, PR-2, and PR-5. We report here the isolation of two nonallelic mutants impaired in the pathway leading to SA biosynthesis. These SA induction-deficient (sid) mutants do not accumulate SA after pathogen inoculation and are more susceptible to both virulent and avirulent forms of Pseudomonas syringae and Peronospora parasitica. However, sid mutants are not as susceptible to these pathogens as are transgenic plants expressing the nahG gene encoding an SA hydroxylase that degrades SA to catechol. In contrast to NahG plants, only the expression of PR-1 is strongly reduced in sid mutants, whereas PR-2 and PR-5 are still expressed after pathogen attack. Furthermore, the accumulation of the phytoalexin camalexin is normal. These results indicate that SA-independent compensation pathways that do not operate in NahG plants are active in sid mutants. One of the mutants is allelic to eds5 (for enhanced disease susceptibility), whereas the other mutant has not been described previously.

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Metadata

Authors
Nawrath, C., & Métraux, J.-P.
Venue
The Plant Cell
Published
1999-08
Volume
11
Issue
8
Pages
1393-1404
ISSN
  • 1040-4651 (ISSN-L)
  • 1532-298X
OpenAlex
W2102271723
Cited by
834
References
45
FWCI
27.62
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Salicylic Acid Induction–Deficient Mutants of Arabidopsis Express PR-2 and PR-5 and Accumulate High Levels of Camalexin after Pathogen Inoculation. https://app.cochat.ai/papers/10.1105/tpc.11.8.1393
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Nawrath, C., & Métraux, J.-P. (1999). Salicylic Acid Induction–Deficient Mutants of Arabidopsis Express PR-2 and PR-5 and Accumulate High Levels of Camalexin after Pathogen Inoculation. The Plant Cell. https://doi.org/10.1105/tpc.11.8.1393

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