HvWRKY23 regulates flavonoid glycoside and hydroxycinnamic acid amide biosynthetic genes in barley to combat Fusarium head blight

Karre, Shailesh; Kumar, Arun; Yogendra, Kalenahalli N.; Kage, Udaykumar; Kushalappa, Ajjamada C.; Charron, Jean‐Benoît

doi:10.1007/s11103-019-00882-2

Cited by 56 publications

(31 citation statements)

References 74 publications

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“…Flavonoids are an important subsidiary class of compounds derived from the PPP (Shi & Xie, 2014; Tian et al., 2015; Xu et al., 2015). Rapid accumulation of flavonoids at the site of pathogen infection has been observed in a number of systems, including sorghum (Kawahigashi et al., 2016), barley (Karre et al., 2019), soybean (van Soria‐Guerra et al., 2010; de Mortel et al., 2007), black poplar (Ullah et al., 2017), and apple (Lu et al., 2017). Coumaric acid and its flavonoid derivatives naringenin and luteolin are specifically induced in H95:Rp1‐D and hence might be involved in P .…”

Section: Discussionmentioning

confidence: 99%

Analysis of the transcriptomic, metabolomic, and gene regulatory responses to Puccinia sorghi in maize

Kim

Broeck

Karre

et al. 2021

Molecular Plant Pathology

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Common rust, caused by Puccinia sorghi, is a widespread and destructive disease of maize. The Rp1‐D gene confers resistance to the P. sorghi IN2 isolate, mediating a hypersensitive cell death response (HR). To identify differentially expressed genes (DEGs) and metabolites associated with the compatible (susceptible) interaction and with Rp1‐D‐mediated resistance in maize, we performed transcriptomics and targeted metabolome analyses of P. sorghi IN2‐infected leaves from the near‐isogenic lines H95 and H95:Rp1‐D, which differed for the presence of Rp1‐D. We observed up‐regulation of genes involved in the defence response and secondary metabolism, including the phenylpropanoid, flavonoid, and terpenoid pathways. Metabolome analyses confirmed that intermediates from several transcriptionally up‐regulated pathways accumulated during the defence response. We identified a common response in H95:Rp1‐D and H95 with an additional H95:Rp1‐D‐specific resistance response observed at early time points at both transcriptional and metabolic levels. To better understand the mechanisms underlying Rp1‐D‐mediated resistance, we inferred gene regulatory networks occurring in response to P. sorghi infection. A number of transcription factors including WRKY53, BHLH124, NKD1, BZIP84, and MYB100 were identified as potentially important signalling hubs in the resistance‐specific response. Overall, this study provides a novel and multifaceted understanding of the maize susceptible and resistance‐specific responses to P. sorghi.

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Section: Discussionmentioning

confidence: 99%

Analysis of the transcriptomic, metabolomic, and gene regulatory responses to Puccinia sorghi in maize

Kim

Broeck

Karre

et al. 2021

Molecular Plant Pathology

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“…TaWRKY70 activated HCAAs related genes such as the ACT, DGK, and GL1 to result in reduced fungal biomass on wheat plants [72]. HvWRKY23 was governing resistance against Fusarium head blight by increasing the biosynthesis of HCAAs and flavonoids through upregulating the expression of PAL, CHS, and HCT genes [76]. Moreover, the biosynthesis of resveratrol, the phytoalexin of Vitis vinifera, was regulated by VviWRKY24 through activating the expression of VviSTS29, thereby conferring antimicrobial resistance [74].…”

Section: Wrky Tfsmentioning

confidence: 99%

Transcriptional Factors Regulate Plant Stress Responses Through Mediating Secondary Metabolism

Meraj

Raza

et al. 2020

Genes

147

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Plants are adapted to sense numerous stress stimuli and mount efficient defense responses by directing intricate signaling pathways. They respond to undesirable circumstances to produce stress-inducible phytochemicals that play indispensable roles in plant immunity. Extensive studies have been made to elucidate the underpinnings of defensive molecular mechanisms in various plant species. Transcriptional factors (TFs) are involved in plant defense regulations through acting as mediators by perceiving stress signals and directing downstream defense gene expression. The cross interactions of TFs and stress signaling crosstalk are decisive in determining accumulation of defense metabolites. Here, we collected the major TFs that are efficient in stress responses through regulating secondary metabolism for the direct cessation of stress factors. We focused on six major TF families including AP2/ERF, WRKY, bHLH, bZIP, MYB, and NAC. This review is the compilation of studies where researches were conducted to explore the roles of TFs in stress responses and the contribution of secondary metabolites in combating stress influences. Modulation of these TFs at transcriptional and post-transcriptional levels can facilitate molecular breeding and genetic improvement of crop plants regarding stress sensitivity and response through production of defensive compounds.

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“…was shown to modulate defense response and enhance resistance against FHB [38]. We analyzed F. culmorum related biotic stresses on the relative mRNA levels of 8 WRKYs in two barley cultivars Epona and Gazda.…”

Section: Molecular Analysismentioning

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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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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HvWRKY23 regulates flavonoid glycoside and hydroxycinnamic acid amide biosynthetic genes in barley to combat Fusarium head blight

Cited by 56 publications

References 74 publications

Analysis of the transcriptomic, metabolomic, and gene regulatory responses to Puccinia sorghi in maize

Analysis of the transcriptomic, metabolomic, and gene regulatory responses to Puccinia sorghi in maize

Transcriptional Factors Regulate Plant Stress Responses Through Mediating Secondary Metabolism

Fusarium culmorum ile Enfekte Edilen Arpa Çeşitlerinde WRKY Transkripsiyon Faktörlerinin Analizi

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