WRKY Transcription Factors: Involvement in Plant–Pathogen Interactions

Satapathy, Lopamudra; Kumar, Dharmender; Mukhopadhyay, Kunal

doi:10.1007/978-981-10-5275-0_11

Cited by 6 publications

(5 citation statements)

References 85 publications

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“…WRKYs have conserved 60 amino acid regions comprising of the highly conserved WRKYGQK peptide sequence and a zinc finger like motif. WRKYs bind specifically to the [(C/T)TGAC(T/C)] sequence also known as W-box elements and are able to regulate expression of target genes containing these sequences in promoter regions [5]. WRKYs can act as positive or negative regulators in defense response.…”

Section: Introductionmentioning

confidence: 99%

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Fusarium culmorum ile Enfekte Edilen Arpa Çeşitlerinde WRKY Transkripsiyon Faktörlerinin Analizi

Uluhan

Keleş

Tufan

2019

International Journal of Life Sciences and Biotechnology

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One of the most critical problems of cereal breeding is Fusarium crown rot disease caused by various Fusarium species. Fusarium culmorum is one of the predominant pathogen in Turkey and causes serious product losses. In this study, the early response of barley cultivars upon F. culmorum infection were analyzed by disease severity and gene expression patterns of WRKY transcription factors. In that context, firstly, disease severities of 9 barley cultivars (Hordeum vulgare L. cvs. Epona, Escadre, Gazda, Oliver, Avcı 2002, Burakbey, Tarm 92, Manava, and Ramata) infected with F. culmorum were determined with disease index percentages. After 7 days of infection, Epona was more sensitive than the other cultivars while the lowest disease index was observed in Gazda. Expression analysis of HvWRKY6,

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Section: Introductionmentioning

confidence: 99%

“…Transcriptional reprograming is crucial for the plant defense system and help plants overcome different stresses [5]. WRKY, bZIP, MYB, bHLH, AP2/ERF, NAC and homeodomain TFs have been shown to participate in the regulation of stress responses [6,7,8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Fusarium culmorum ile Enfekte Edilen Arpa Çeşitlerinde WRKY Transkripsiyon Faktörlerinin Analizi

Uluhan

Keleş

Tufan

2019

International Journal of Life Sciences and Biotechnology

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“…WRKY proteins are one of the largest TF families in plants and can be divided into three groups according to the number of WRKY domains and the type of zinc finger structure [ 49 , 50 , 51 ]. Group I includes two WRKY domains and one C2H2 zinc finger, group II includes one WRKY domain and one C2H2 zinc finger, and group III includes one WRKY domain and one C2HC zinc finger (C-X7-C-X23-H-X1-C).…”

Section: Resultsmentioning

confidence: 99%

“…In order to reveal the molecular mechanism of FaWRKY25 in resistance to B. cinerea , we detected the expression levels of some transcription factors and genes related to resistance. Phytohormone is known to exert a crucial effect in regulating plant immunity, with SA and JA being the main participants [ 51 ]. Research on Arabidopsis indicated that WRKY33, through activating the JA signaling pathway, regulated the resistance of the induction system triggered by B. cinerea [ 53 ].…”

Section: Discussionmentioning

confidence: 99%

Strawberry FaWRKY25 Transcription Factor Negatively Regulated the Resistance of Strawberry Fruits to Botrytis cinerea

Jia

Wang²,

Zhang³

et al. 2020

Genes

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WRKY genes and jasmonic acid (JA) play a crucial role in plants’ responses against biotic and abiotic stress. However, the regulating mechanism of WRKY genes on strawberry fruits’ resistance against Botrytis cinerea is largely unknown, and few studies have been performed on their effect on the JA-mediated defense mechanism against B. cinerea. This study explored the effect of FaWRKY25 on the JA-mediated strawberry resistance against B. cinerea. Results showed that the JA content decreased significantly as the fruits matured, whereas the FaWRKY25 expression rose substantially, which led to heightened susceptibility to B. cinerea and in strawberries. External JA treatment significantly increased the JA content in strawberries and reduced the FaWRKY25 expression, thereby enhancing the fruits’ resistance against B. cinerea. FaWRKY25 overexpression significantly lowered the fruits’ resistance against B. cinerea, whereas FaWRKY25 silencing significantly increased resistance. Moreover, FaWRKY25 overexpression significantly lowered the JA content, whereas FaWRKY25 silencing significantly increased it. FaWRKY25 expression level substantially affects the expression levels of genes related to JA biosynthesis and metabolism, other members of the WRKY family, and defense genes. Accordingly, FaWRKY25 plays a crucial role in regulating strawberries’ resistance against B. cinerea and may negatively regulate their JA-mediated resistance mechanism against B. cinerea.

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“…Expression of Glyma.17G128900 , a putative calcium-binding protein was particularly strongly suppressed by both insecticides but unaffected in plants exposed to the herbivore regardless of insecticides treatments. Further, suppression of multiple genes from the WRKY family of TFs that is unique to plants and is involved in regulation of defense responses to pathogens and insects [53,54] was evident in soybean exposed to both insecticides. Several WRKY genes including WRKY19, WRKY33 among others were significantly suppressed by thiamethoxam and imidacloprid, while only WRKY19 was down-regulated in plants exposed to spider mites.…”

Section: Resultsmentioning

confidence: 99%

Neonicotinoid Insecticides Alter the Transcriptome of Soybean and Decrease Plant Resistance

Wulff

Kiani²,

Regan

et al. 2019

IJMS

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Neonicotinoids are widely used systemic insecticides that have been associated with spider mite outbreaks on diverse plants. These insecticides have complex effects on plant physiology, which have been speculated to drive enhanced performance of spider mites. We used RNA-Seq to explore how neonicotinoids modify gene expression in soybean thereby lowering plant resistance. We exposed soybean (Glycine max L.) to two neonicotinoid insecticides, thiamethoxam applied to seeds and imidacloprid applied as a soil drench, and we exposed a subset of these plants to spider mites (Tetranychus cinnabarinus). Applications of both insecticides downregulated genes involved in plant—pathogen interactions, phytohormone pathways, phenylpropanoid pathway, and cell wall biosynthesis. These effects were especially pronounced in plants exposed to thiamethoxam. Introduction of spider mites restored induction of genes in these pathways in plants treated with imidacloprid, while expression of genes involved in phenylpropanoid synthesis, in particular, remained downregulated in thiamethoxam-treated plants. Our outcomes indicate that both insecticides suppress genes in pathways relevant to plant–arthropod interactions, and suppression of genes involved in cell wall synthesis may explain lower plant resistance to spider mites, cell-content feeders. These effects appear to be particularly significant when plants are exposed to neonicotinoids applied to soybean seeds.

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WRKY Transcription Factors: Involvement in Plant–Pathogen Interactions

Cited by 6 publications

References 85 publications

Fusarium culmorum ile Enfekte Edilen Arpa Çeşitlerinde WRKY Transkripsiyon Faktörlerinin Analizi

Fusarium culmorum ile Enfekte Edilen Arpa Çeşitlerinde WRKY Transkripsiyon Faktörlerinin Analizi

Strawberry FaWRKY25 Transcription Factor Negatively Regulated the Resistance of Strawberry Fruits to Botrytis cinerea

Neonicotinoid Insecticides Alter the Transcriptome of Soybean and Decrease Plant Resistance

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