The transcriptome of Arabidopsis thaliana during systemic acquired resistance

Maleck, Klaus; Levine, Aaron; Eulgem, Thomas; Morgan, A. N.; Schmid, Jürg; Lawton, Kay A.; Dangl, Jeffery L.; Dietrich, Robert A.

doi:10.1038/82521

Cited by 910 publications

(715 citation statements)

References 51 publications

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“…WRKYs are a large family of plant-specific transcription factors that bind to the W-box of promoter regions of many pathogenesis-related genes [35]. Indeed, we observed strong induction of several PR genes.…”

Section: Transcription Factors and The Global Transcriptional Reprogrmentioning

confidence: 54%

An extensive microarray analysis of AAL-toxin-induced cell death in Arabidopsis thaliana brings new insights into the complexity of programmed cell death in plants

Gechev

Gadjev

Hille

2004

Cellular and Molecular Life Sciences (CMLS)

129

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An extensive microarray analysis of AAL-toxin-induced cell death in Arabidopsis thaliana brings new insights into the complexity of programmed cell death in plants Gechev, T.S.; Gadjev, I.Z.; Hille, J. Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Abstract. A T-DNA knockout of the Arabidopsis homologue of the tomato disease resistance gene Asc was obtained. The asc gene renders plants sensitive to programmed cell death (PCD) triggered by the fungal AAL toxin. To obtain more insights into the nature of AALtoxin-induced cell death and to identify genes of potential importance for PCD, we carried out transcription profiling of AAL-toxin-induced cell death in this knockout with an oligonucleotide array representing 21,500 Arabidopsis genes. Genes responsive to reactive oxygen species (ROS) and ethylene were among the earliest to be upregulated, suggesting that an oxidative burst and production of ethylene played a role in the activation of the cell death. This notion was corroborated by induction of several genes encoding ROS-generating proteins, including a respiratory burst oxidase and germin oxalate oxi- CMLS, Cell. Mol. Life Sci. 61 (2004) 1185 -1197 1420-682X/04/101185-13 DOI 10.1007/s00018-004-4067-2 © Birkhäuser Verlag, Basel, 2004 CMLS Cellular and Molecular Life Sciences dase. Cytochemical studies confirmed the oxidative burst and, in addition, showed synthesis of callose, a feature of the hypersensitive response. A diverse group of transcription factors was also induced. These events were followed by repression of most of the auxin-regulated genes known to be involved in growth and developmental responses. All photosynthesis-related genes were repressed. Blocking the synthesis of ethylene or NO significantly compromised cell death. In addition, we identified a heterogeneous group of early-induced genes, some of them never before associated with PCD. The group of earlyinduced genes included a number of proteases that were previously implicated in developmentally regulated types of PCD, suggesting a more principal role for these proteases in the PCD process. These findings provide new insights into the molecular mechanisms of plant PCD.

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Section: Transcription Factors and The Global Transcriptional Reprogrmentioning

confidence: 54%

An extensive microarray analysis of AAL-toxin-induced cell death in Arabidopsis thaliana brings new insights into the complexity of programmed cell death in plants

Gechev

Gadjev

Hille

2004

Cellular and Molecular Life Sciences (CMLS)

129

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“…This is called the wRKY domain because of the presence of the highly conserved wRKY amino acid sequence (wRKYGQK) also referred to as the "signature sequence" at the N-terminus (Maleck et al 2000;Rushton et al 1996). The wRKY domain is approximately 60 amino acid residues in length with the wRKY signature at the N-terminus and a zinc finger structure at the C-terminus.…”

Section: Wrky Transcription Factors-domain Structure and Bindingmentioning

confidence: 99%

A systems biology perspective on the role of WRKY transcription factors in drought responses in plants

Tripathi

Rabara

Rushton

2013

Planta

202

130

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“…Arabidopsis WRKY transcriptional factor (AtWRKY52), containing a LRR motif of TIR-NBS-LRR subclass R gene products, has been shown to enhance disease resistance to several strains of Ralstonia solanacearum [48]. It was also demonstrated that some WRKY genes are necessary for inducible expression of defense-related genes in SAR, such as PR1 in Arabidopsis and PR10 in parsley [49,50]. In Arabidopsis, WRKY29 has been identified as an important downstream component of a MAPK pathway that confers resistance to both bacterial and fungal pathogens [51].…”

Section: Introductionmentioning

confidence: 99%

OsWRKY03, a rice transcriptional activator that functions in defense signaling pathway upstream of OsNPR1

et al. 2005

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WRKY family proteins are a class of plant specific transcription factors that involve in many stress response pathways. It has been shown that one Arabidopsis WRKY protein, AtWRKY29/22, is activated by MAP kinase signaling cascade and confers resistance to both bacterial and fungal pathogens. However, little is known about the biological roles of WRKY proteins in rice. In this study, we investigated the expression patterns of rice AtWRKY29/22 homolog, OsWRKY03, under different conditions, and also its possible role involved in plant defense. Our results showed that OsWRKY03 was up-regulated by several defense signaling molecules or different treatments. Further analysis revealed that the expression of OsWRKY03 was light dependent. Transcriptional activation activity of OsWRKY03 was also demonstrated by yeast functional assay. Transient expression of OsWRKY03-GFP fusion protein in onion epidermis cells showed that OsWRKY03 was a nuclear localized protein. OsNPR1 as well as several other pathogenesis-related genes, such as OsPR1b, phenylalanine ammonia-lyase (ZB8) and peroxidase (POX22.3), were induced in OsWRKY03-overexpressing transgenic plants. These results indicated that OsWRKY03 is located upstream of OsNPR1 as a transcriptional activator in salicylic acid (SA)-dependent or jasmonic acid (JA)-dependent defense signaling cascades.

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The transcriptome of Arabidopsis thaliana during systemic acquired resistance

Cited by 910 publications

References 51 publications

An extensive microarray analysis of AAL-toxin-induced cell death in Arabidopsis thaliana brings new insights into the complexity of programmed cell death in plants

An extensive microarray analysis of AAL-toxin-induced cell death in Arabidopsis thaliana brings new insights into the complexity of programmed cell death in plants

A systems biology perspective on the role of WRKY transcription factors in drought responses in plants

OsWRKY03, a rice transcriptional activator that functions in defense signaling pathway upstream of OsNPR1

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