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The salicylic acid receptor NPR3 is a negative regulator of the transcriptional defense response during early flower development in Arabidopsis.

Molecular plant - 1 May 2013

Shi Zi, Maximova Siela, Liu Yi, Verica Joseph, Guiltinan Mark J

Abstract excerpt

Arabidopsis non-expressor of PR1 (NPR1) is a transcription co-activator that plays a central role in regulating the transcriptional response to plant pathogens. The NPR family consists of NPR1 and five NPR1-like genes. The NPR1 paralog NPR3 has recently been shown to function as a receptor of the plant hormone salicylic acid and to mediate proteosomal degradation of NPR1. The function of NPR3 protein during early...

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Disease Resistance
Flowers
Fluorescence
Genes, Dominant
Green Fluorescent Proteins

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Plants, Genetically Modified

Pseudomonas syringae

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Identifiers

PMID: 22986789
DOI: 10.1093/mp/sss091

Genes

NPR1
NPR3

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 31 Aug 2026.

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The salicylic acid receptor NPR3 is a negative regulator of the transcriptional defense response during early flower development in Arabidopsis.PMID 22986789Read ↗

Negative regulation of defense responses in Arabidopsis by two NPR1 paralogs.Semantic proximity Read ↗

NPR3 and NPR4 are receptors for the immune signal salicylic acid in plants.Semantic proximity Read ↗

Opposite Roles of Salicylic Acid Receptors NPR1 and NPR3/NPR4 in Transcriptional Regulation of Plant Immunity.Semantic proximity Read ↗

Salicylic acid binds NPR3 and NPR4 to regulate NPR1-dependent defense responses.Semantic proximity Read ↗

BLADE-ON-PETIOLE-dependent signaling controls leaf and floral patterning in Arabidopsis.Semantic proximity Read ↗

OCP3 is an important modulator of NPR1-mediated jasmonic acid-dependent induced defenses in Arabidopsis.Semantic proximity Read ↗

TcNPR3 from Theobroma cacao functions as a repressor of the pathogen defense response.Semantic proximity Read ↗

The coat protein of Alfalfa mosaic virus interacts and interferes with the transcriptional activity of the bHLH transcription factor ILR3 promoting salicylic acid-dependent defence signalling response.Semantic proximity Read ↗

The BLADE-ON-PETIOLE genes of Arabidopsis are essential for resistance induced by methyl jasmonate.Semantic proximity Read ↗

The Arabidopsis SUPPRESSOR OF AUXIN RESISTANCE proteins are nucleoporins with an important role in hormone signaling and development.Semantic proximity Read ↗

Recessive mutation identifies auxin-repressed protein ARP1, which regulates growth and disease resistance in tobacco.Semantic proximity Read ↗

EDR2 negatively regulates salicylic acid-based defenses and cell death during powdery mildew infections of Arabidopsis thaliana.Semantic proximity Read ↗

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