Regulation of rice responses to submergence by WRKY transcription factors

Viana, Vívian Ebeling; Marini, Naciele; Busanello, Carlos; Pegoraro, Camila; Fernando, Juliana Aparecida; Maia, Luciano Carlos da; Oliveira, Antônio Costa de

doi:10.1007/s10535-018-0806-3

Cited by 12 publications

(11 citation statements)

References 42 publications

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“…Increase in the expression of WRKY has also been shown by microarray data in Arabidopsis ( Loreti et al, 2005 ) and rice ( Lasanthi-Kudahettige et al, 2007 ) in response to oxygen deficiency. The role of WRKY in the regulation of submergence tolerance in rice has also been reported by Viana et al (2018) . Also, in transgenic Arabidopsis expressing a sunflower WRKY, HaWRKY76 was found to be tolerant to flooding (complete submergence) by preserving carbohydrates, mainly sucrose and starch, through the repression of fermentation pathways ( Raineri et al, 2015 ).…”

Section: Resultsmentioning

confidence: 82%

“…Similar observations were also identified in alcohol dehydrogenase 1 (ADH1) -deficient mutant of rice where WRKY could be playing a key role in cell survival rather than elongation ( Mohanty et al, 2016 ). Interestingly, W-box elements have been identified in the promoter of upregulated WRKY genes such as OsWRKY11 , OsWRKY56 , and OsWRKY62 during submergence ( Viana et al, 2018 ). This shows the self-regulation of WRKY in response to submergence stress.…”

Section: Resultsmentioning

confidence: 99%

“…The role of WRKY TFs in response to coleoptile elongation in rice under submergence is not well studied yet. However, studies on WRKY TFs reported that it plays a role in hypoxic stress response in persimmon ( Zhu et al, 2019 ), rice ( Shiono et al, 2014 ; Mohanty et al, 2016 ), and sunflower ( Raineri et al, 2015 ), and submergence tolerance in rice ( Viana et al, 2018 ). Recent studies on WRKY stated that a regulatory module composed of WRKY33 and WRKY12 together with RAP2.2 plays a key role in hypoxia tolerance in Arabidopsis ( Tang et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

“…Auxin-dependent differential growth in rice coleoptile is shown to be due to the effect of the TF auxin response factor 1 ( OsARF1 ) ( Waller et al, 2002 ). Likewise, TF WRKY is also involved in the regulation of tolerance to rice under submergence ( Viana et al, 2018 ). High accumulation of WRKY in both shoots and roots was observed in response to submergence.…”

Section: Introductionmentioning

confidence: 99%

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Promoter Architecture and Transcriptional Regulation of Genes Upregulated in Germination and Coleoptile Elongation of Diverse Rice Genotypes Tolerant to Submergence

Mohanty

2021

Front. Genet.

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Rice has the natural morphological adaptation to germinate and elongate its coleoptile under submerged flooding conditions. The phenotypic deviation associated with the tolerance to submergence at the germination stage could be due to natural variation. However, the molecular basis of this variation is still largely unknown. A comprehensive understanding of gene regulation of different genotypes that have diverse rates of coleoptile elongation can provide significant insights into improved rice varieties. To do so, publicly available transcriptome data of five rice genotypes, which have different lengths of coleoptile elongation under submergence tolerance, were analyzed. The aim was to identify the correlation between promoter architecture, associated with transcriptional and hormonal regulation, in diverse genotype groups of rice that have different rates of coleoptile elongation. This was achieved by identifying the putative cis-elements present in the promoter sequences of genes upregulated in each group of genotypes (tolerant, highly tolerant, and extremely tolerant genotypes). Promoter analysis identified transcription factors (TFs) that are common and unique to each group of genotypes. The candidate TFs that are common in all genotypes are MYB, bZIP, AP2/ERF, ARF, WRKY, ZnF, MADS-box, NAC, AS2, DOF, E2F, ARR-B, and HSF. However, the highly tolerant genotypes interestingly possess binding sites associated with HY5 (bZIP), GBF3, GBF4 and GBF5 (bZIP), DPBF-3 (bZIP), ABF2, ABI5, bHLH, and BES/BZR, in addition to the common TFs. Besides, the extremely tolerant genotypes possess binding sites associated with bHLH TFs such as BEE2, BIM1, BIM3, BM8 and BAM8, and ABF1, in addition to the TFs identified in the tolerant and highly tolerant genotypes. The transcriptional regulation of these TFs could be linked to phenotypic variation in coleoptile elongation in response to submergence tolerance. Moreover, the results indicate a cross-talk between the key TFs and phytohormones such as gibberellic acid, abscisic acid, ethylene, auxin, jasmonic acid, and brassinosteroids, for an altered transcriptional regulation leading to differences in germination and coleoptile elongation under submergence. The information derived from the current in silico analysis can potentially assist in developing new rice breeding targets for direct seeding.

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Section: Resultsmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Promoter Architecture and Transcriptional Regulation of Genes Upregulated in Germination and Coleoptile Elongation of Diverse Rice Genotypes Tolerant to Submergence

Mohanty

2021

Front. Genet.

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“…Transcriptomic analyses suggested that WRKY TFs can regulate constitutive and environmentally induced lysigenous aerenchyma induction in rice ( Yoo et al., 2015 ; Viana et al., 2018 ). However, WRKY53 and WRKY33 showed higher expression under submergence conditions in the waterlogging sensitive maize genotypes compared to tolerant lines ( Campbell et al., 2015 ).…”

Section: Wrky Transcription Factors In Programmed Cell Death Regulatimentioning

confidence: 99%

Stressed to Death: The Role of Transcription Factors in Plant Programmed Cell Death Induced by Abiotic and Biotic Stimuli

et al. 2020

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Programmed cell death (PCD) is a genetically controlled pathway that plants can use to selectively eliminate redundant or damaged cells. In addition to its fundamental role in plant development, PCD can often be activated as an essential defense response when dealing with biotic and abiotic stresses. For example, localized, tightly controlled PCD can promote plant survival by restricting pathogen growth, driving the development of morphological traits for stress tolerance such as aerenchyma, or triggering systemic pro-survival responses. Relatively little is known about the molecular control of this essential process in plants, especially in comparison to well-described cell death models in animals. However, the networks orchestrating transcriptional regulation of plant PCD are emerging. Transcription factors (TFs) regulate the clusters of stimuli inducible genes and play a fundamental role in plant responses, such as PCD, to abiotic and biotic stresses. Here, we discuss the roles of different classes of transcription factors, including members of NAC, ERF and WRKY families, in cell fate regulation in response to environmental stresses. The role of TFs in stress-induced mitochondrial retrograde signaling is also reviewed in the context of life-and-death decisions of the plant cell and future research directions for further elucidation of TF-mediated control of stress-induced PCD events are proposed. An increased understanding of these complex signaling networks will inform and facilitate future breeding strategies to increase crop tolerance to disease and/or abiotic stresses.

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Transcriptional Regulatory Network Involved in Drought and Salt Stress Response in Rice

Kumar,

Suniti

et al. 2023

Salinity and Drought Tolerance in Plants

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Regulation of rice responses to submergence by WRKY transcription factors

Cited by 12 publications

References 42 publications

Promoter Architecture and Transcriptional Regulation of Genes Upregulated in Germination and Coleoptile Elongation of Diverse Rice Genotypes Tolerant to Submergence

Promoter Architecture and Transcriptional Regulation of Genes Upregulated in Germination and Coleoptile Elongation of Diverse Rice Genotypes Tolerant to Submergence

Stressed to Death: The Role of Transcription Factors in Plant Programmed Cell Death Induced by Abiotic and Biotic Stimuli

Transcriptional Regulatory Network Involved in Drought and Salt Stress Response in Rice

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