Transcription factors WRKY11 and WRKY17 are involved in abiotic stress responses in Arabidopsis

Ali, Muhammad Amjad; Azeem, Farrukh; Nawaz, Muhammad Amjad; Acet, Tuba; Abbas, Amjad; Imran, Qari Muhammad; Shah, Kausar Hussain; Rehman, Hafiz Mamoon; Chung, Gyuhwa; Yang, Seung-Hwan; Bohlmann, Holger

doi:10.1016/j.jplph.2018.04.007

Cited by 84 publications

(39 citation statements)

References 53 publications

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“…TF genes seems to be involved in the regulation of various physiological systems in response to floral organogenesis and flower development [49]. All DEGs were predicted with transcription factor.…”

Section: Recognizing Tf-encoding Genes Associated With Floral Organ Dmentioning

confidence: 97%

Comparative Transcriptome Analysis between Ornamental Apple Species Provides Insights into Mechanism of Double Flowering

et al. 2019

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Double-flower ornamental crabapples display eye-catching morphologies in comparison to single flower, but the genetic basis of double-flower development is not yet well known in apples. In order to comprehensively understand the differential expression of genes (DEGs) between single and double flower, the transcriptome of double flower crabapples Malus Kelsey, Malus micromalus, Malus Royalty, and a single flower cultivar Malus Dolgo were compared by RNA-sequencing. The results showed that there were 1854 genes in overlapped DEGs among all sample comparisons in apple single and double flower varieties. A large number of development and hormone related DEGs were also recognized on the basis of GO and KEGG annotations, and most of the genes were found to be down-regulated in double flowers. Particularly, an AGL24-MADS-box gene (MD08G1196900) and an auxin responsive gene (MD13G1137000) were putatively key candidate genes in the development of double flower by weighted gene co-expression network analysis (WGCNA). The study provides insights into the complex molecular mechanism underlying the development of the double flower in apple.

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Section: Recognizing Tf-encoding Genes Associated With Floral Organ Dmentioning

confidence: 97%

Comparative Transcriptome Analysis between Ornamental Apple Species Provides Insights into Mechanism of Double Flowering

et al. 2019

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“…Finally, a perfect freq-pCRE-WRKY11 match indicates that WRKY TFs, although significantly overrepresented in nonenriched clusters, are also important for regulating GS-enriched clusters. WRKY11 is involved in abiotic stress tolerance in Arabidopsis (Ali et al, 2018), with no specific role known during 2Fe response yet. However, WRKY TFs in general have already been connected to 2Fe, for example as putative regulators of the coumarin transporter gene PLEIO-TROPIC DRUG RESISTANCE9 (PDR9; Ito and Gray, 2006) and of PYE (Koryachko et al, 2015).…”

Section: Inferring Upstream Regulators Of the 2fe Responsementioning

confidence: 99%

Putative cis-Regulatory Elements Predict Iron Deficiency Responses in Arabidopsis Roots

et al. 2020

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Plant iron deficiency (2Fe) activates a complex regulatory network that coordinates root Fe uptake and distribution to sink tissues. In Arabidopsis (Arabidopsis thaliana), FER-LIKE FE DEFICIENCY-INDUCED TRANSCRIPTION FACTOR (FIT), a basic helix-loophelix (bHLH) transcription factor (TF), regulates root Fe acquisition genes. Many other 2Fe-induced genes are FIT independent, and instead regulated by other bHLH TFs and by yet unknown TFs. The cis-regulatory code, that is, the cis-regulatory elements (CREs) and their combinations that regulate plant 2Fe-responses, remains largely elusive. Using Arabidopsis root transcriptome data and coexpression clustering, we identified over 100 putative CREs (pCREs) that predicted 2Fe-induced gene expression in computational models. To assess pCRE properties and possible functions, we used large-scale in vitro TF binding data, positional bias, and evolutionary conservation. As one example, our approach uncovered pCREs resembling IDE1 (iron deficiency-responsive element 1), a known grass 2Fe response CRE. Arabidopsis IDE1-likes were associated with FIT-dependent gene expression, more specifically with biosynthesis of Fe-chelating compounds. Thus, IDE1 seems to be conserved in grass and nongrass species. Our pCREs matched among others in vitro binding sites of B3, NAC, bZIP, and TCP TFs, which might be regulators of 2Fe responses. Altogether, our findings provide a comprehensive source of cis-regulatory information for 2Fe-responsive genes that advance our mechanistic understanding and inform future efforts in engineering plants with more efficient Fe uptake or transport systems.

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“…Therefore, WRKY33 likely also plays essential roles in salt signaling networks in P. cornutum. WRKY11 and WRKY20 has been proven to modulate salt adaption of various plant species [80,81]. In P. cornutum, the WRKY11 (CL2682.Contig2_All) and three transcripts for WRKY20 (CL2519.Contig2_All, CL2519.Contig6_All and CL2519.Contig9_All) were all downregulated in roots and shoots of P. cornutum after 6 h of salt treatment (Additional file 1: Table S13 and S14), suggesting a specific role of WRKY11 and WRKY20 in regulating salt adaption in P. cornutum.…”

Section: Transcription Factors Play Important Roles In Regulating Salmentioning

confidence: 99%

Transcriptomic profiling identifies candidate genes involved in salt tolerance of the xerophyte Pugionium cornutum

Cui

Wang

Yang

et al. 2019

Preprint

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Background: Pugionium cornutum is a xerophytic plant that primarily adapts to salt stress by accumulating inorganic ions (e.g., Cl - ) for osmoregulation, improving its reactive oxygen species (ROS)-scavenging ability and maintaining high photosynthetic carbon assimilation efficiency, but the associated molecular mechanisms still remain unclear. Results : Here, we present an analysis of gene responses to salt stress based on the transcriptome of P. cornutum exposed to 50 mM NaCl treatment. The data revealed that, after NaCl treatment for 6 or 24 h, the transcript levels of multiple genes encoding proteins facilitating Cl - accumulation and NO 3 - homeostasis such as SLAH1, CLCg, CCC1, and NPF6.4, as well as the transport of other major inorganic osmoticums were significantly upregulated in roots and shoots, which should be favorable to enhancing osmotic adjustment capacity and maintaining the plant uptake and transport of nutrient elements; a large number of genes related to ROS-scavenging pathways were also significantly upregulated, which should be beneficial for mitigating salt-induced oxidative damage to the cell metabolism. Meanwhile, many genes encoding components of the photosynthetic electron transport and carbon fixation enzymes were significantly upregulated in shoots after salt treatment, possibly resulting in a high carbon assimilation efficiency in P. cornutum . Additionally, numerous salt-inducible transcription factor genes probably regulating the abovementioned processes were found. Conclusion : Candidate genes involved in salt tolerance of P. cornutum were identified, which lays a preliminary foundation for clarifying the molecular mechanism of the xerophytes adapting to harsh environments.

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Transcription factors WRKY11 and WRKY17 are involved in abiotic stress responses in Arabidopsis

Cited by 84 publications

References 53 publications

Comparative Transcriptome Analysis between Ornamental Apple Species Provides Insights into Mechanism of Double Flowering

Comparative Transcriptome Analysis between Ornamental Apple Species Provides Insights into Mechanism of Double Flowering

Putative cis-Regulatory Elements Predict Iron Deficiency Responses in Arabidopsis Roots

Transcriptomic profiling identifies candidate genes involved in salt tolerance of the xerophyte Pugionium cornutum

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