A hot pepper gene encoding WRKY transcription factor is induced during hypersensitive response to Tobacco mosaic virus and Xanthomonas campestris

Park, Chang Jin; Shin, Yun Chul; Lee, Boo Ja; Kim, Ki-Jeong; Kim, Jeong Kook; Paek, Kyung Hee

doi:10.1007/s00425-005-0067-1

Cited by 66 publications

(48 citation statements)

References 63 publications

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“…An insertion in the WRKY domain of the Arabidopsis TIR-NBS-LRR-WRKY-type disease resistance protein SLH1 (sensitive to low humidity 1) causes activation of defense responses and hypersensitive cell death (Noutoshi et al 2005). A hot pepper WRKY gene is induced during hypersensitive response to tobacco mosaic virus and Xanthomonas campestris (Park et al 2006). More details regarding the roles of WRKY genes in defending dicotyledonous plants against pathogens can be found in three excellent reviews (Eulgem et al 2000;Ulker and Somssich 2004;Eulgem 2006).…”

Section: Roles In Disease Resistance and Responses To Salicylic Acidmentioning

confidence: 99%

The WRKY Gene Family in Rice (Oryza sativa)

Roß

Liu

Shen

2007

JIPB

371

290

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WRKY genes encode transcription factors that are involved in the regulation of various biological processes. These zinc-finger proteins, especially those members mediating stress responses, are uniquely expanded in plants. To facilitate the study of the evolutionary history and functions of this supergene family, we performed an exhaustive search for WRKY genes using HMMER and a Hidden Markov Model that was specifically trained for rice. This work resulted in a comprehensive list of WRKY gene models in Oryza sativa L. ssp. indica and L. ssp. japonica. Mapping of these genes to individual chromosomes facilitated elimination of the redundant, leading to the identification of 98 WRKY genes in japonica and 102 in indica rice. These genes were further categorized according to the number and structure of their zinc-finger domains. Based on a phylogenetic tree of the conserved WRKY domains and the graphic display of WRKY loci on corresponding indica and japonica chromosomes, we identified possible WRKY gene duplications within, and losses between the two closely related rice subspecies. Also reviewed are the roles of WRKY genes in disease resistance and responses to salicylic acid and jasmonic acid, seed development and germination mediated by gibberellins, other developmental processes including senescence, and responses to abiotic stresses and abscisic acid in rice and other plants. The signaling pathways mediating WRKY gene expression are also discussed. Available online at www.blackwell-synergy.com/links/toc/jipb, www.jipb.net Plants, because of their inability to escape predation or environmental changes, have evolved strategies to tolerate and adapt to biotic and abiotic stresses. Biotic stresses, such as fungal, bacterial, and viral challenges, and abiotic stresses, such as drought, cold, wounding, and salinity, are sensed through a complex signal transduction network and result in physiological, biochemical, and gene expression changes (Kunkel and Brooks 2002;Singh et al. 2002; Mahalingam et al. 2003; Katagiri 2004). Families of transcription factors, central to this process, have uniquely expanded and evolved in plants to coordinate gene expression. The WRKY class of zinc-finger proteins, similar to the ethylene-responsive-element binding factors (ERF) (Gutterson and Reuber 2004), DNA binding one finger (Dof;Yanagisawa 2002Yanagisawa , 2004 and basic domain leucine zipper (bZIP;Siberil et al. 2001; Jakoby et al. 2002) families, is a family of proteins that contains many members that mediate plant stress responses (previously reviewed in Eulgem et al. 2000;Ulker and Somssich 2004). In the present review, we present the signature and domain of the WRKY genes, their distribution and evolution history, comprehensive analyses of rice WRKY family, and the regulation and functions of WRKY genes in rice and other plants. The WRKY Signature and DomainWRKY domains were initially defined by a nearly 60 amino acid long motif possessing the well-conserved amino acid signature WRKYGQK at their N-terminus and conta...

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Section: Roles In Disease Resistance and Responses To Salicylic Acidmentioning

confidence: 99%

The WRKY Gene Family in Rice (Oryza sativa)

Roß

Liu

Shen

2007

JIPB

371

290

View full text Add to dashboard Cite

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“…The activation of WRKY has been linked to the induction and regulation of a HR in several plant species (Yoda et al 2002;Park et al 2006). Transcription factors of the WRKY class recognize various W-box elements [TGAC(C/T)] which are found within promoters of many defence-associated genes, such as PR (pathogen-related) genes, ATPbinding cassette-transporters and genes involved in the systemic acquired resistance (Dong et al 2003;Yamamoto et al 2004).…”

Section: Transcription Factorsmentioning

confidence: 99%

Differential gene expression during hypersensitive response inPhylloxera-resistant rootstock ‘Börner’ using custom oligonucleotide arrays

Blank

Wolf

Eimert

et al. 2009

Journal of Plant Interactions

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The aim of the present study was to identify genes involved in the hypersensitive response (HR) in 'Bo¨rner', a grapevine rootstock cultivar resistant to grape phylloxera. The HR was chemically induced in roots by an application of indol-3-acetic-acid (IAA). Comparisons between treated and untreated roots after different times of HR induction by IAA were realized by advanced custom DNA microarrays using 'Riesling', a phylloxerasensitive scion, as a control. IAA induction resulted in higher numbers of differentially expressed genes in 'Bo¨rner' than in 'Riesling'. In total, 27 putative HR-related genes were identified in 'Bo¨rner'. These genes are presumably involved in the production of phytoalexins, ethylene-associated gene products, cell wall proteins and transcription factors. Thus, the present study is contributing to a better understanding of the signal transduction pathways involved in the hypersensitive reaction underlying the necrosis formation after phylloxera attack in the rootstock cultivar 'Bo¨rner'.

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“…Since Ishiguro and Nakamura isolated the first WRKY gene, SPF1, from Ipomoea batatas in 1994 (Ishiguro and Nakamura 1994), an increasing number of WRKY genes have been identified from a diverse variety of plants (Abbruscato et al 2012;Atamian et al 2012;Borrone et al 2004;Guo et al 2011;Zheng et al 2011;Lagacé and Matton 2004;Liu et al 2012;Marè et al 2004;Niu et al 2012;Pan et al 2009;Park et al 2006). Over 70 and 100 members of the family are known in Arabidopsis (Arabidopsis thaliana) and rice (Oryza sativa), respectively (Agarwal et al 2011;Kalde et al 2003;Wang et al 2011).…”

Section: Introductionmentioning

confidence: 96%

Chrysanthemum WRKY gene CmWRKY17 negatively regulates salt stress tolerance in transgenic chrysanthemum and Arabidopsis plants

Song

Gao

et al. 2015

Plant Cell Rep

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CmWRKY17 was induced by salinity in chrysanthemum, and it might negatively regulate salt stress in transgenic plants as a transcriptional repressor. WRKY transcription factors play roles as positive or negative regulators in response to various stresses in plants. In this study, CmWRKY17 was isolated from chrysanthemum (Chrysanthemum morifolium). The gene encodes a 227-amino acid protein and belongs to the group II WRKY family, but has an atypical WRKY domain with the sequence WKKYGEK. Our data indicated that CmWRKY17 was localized to the nucleus in onion epidermal cells. CmWRKY17 showed no transcriptional activation in yeast; furthermore, luminescence assay clearly suggested that CmWRKY17 functions as a transcriptional repressor. DNA-binding assay showed that CmWRKY17 can bind to W-box. The expression of CmWRKY17 was induced by salinity in chrysanthemum, and a higher expression level was observed in the stem and leaf compared with that in the root, disk florets, and ray florets. Overexpression of CmWRKY17 in chrysanthemum and Arabidopsis increased the sensitivity to salinity stress. The activities of superoxide dismutase and peroxidase and proline content in the leaf were significantly lower in transgenic chrysanthemum than those in the wild type under salinity stress, whereas electrical conductivity was increased in transgenic plants. Expression of the stress-related genes AtRD29, AtDREB2B, AtSOS1, AtSOS2, AtSOS3, and AtNHX1 was reduced in the CmWRKY17 transgenic Arabidopsis compared with that in the wild-type Col-0. Collectively, these data suggest that CmWRKY17 may increase the salinity sensitivity in plants as a transcriptional repressor.

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A hot pepper gene encoding WRKY transcription factor is induced during hypersensitive response to Tobacco mosaic virus and Xanthomonas campestris

Cited by 66 publications

References 63 publications

The WRKY Gene Family in Rice (Oryza sativa)

The WRKY Gene Family in Rice (Oryza sativa)

Differential gene expression during hypersensitive response inPhylloxera-resistant rootstock ‘Börner’ using custom oligonucleotide arrays

Chrysanthemum WRKY gene CmWRKY17 negatively regulates salt stress tolerance in transgenic chrysanthemum and Arabidopsis plants

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