Wheat Heat Shock Factor TaHsfA6f Increases ABA Levels and Enhances Tolerance to Multiple Abiotic Stresses in Transgenic Plants

Bi, Huihui; Zhao, Yue; Li, Huanhuan; Liu, Wenxuan

doi:10.3390/ijms21093121

Cited by 49 publications

(27 citation statements)

References 49 publications

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“…Heat stress extensively up-regulates transcript levels of the wheat ( Triticum aestivum L.) heat shock factor HsfA6f (TaHsfA6f) ( Bi et al, 2020 ). Arabidopsis transgenic plants overexpressing the TaHsfA6f gene showed increased accumulation of ABA and subsequently improved tolerance to various environmental stresses, including heat.…”

Section: Roles Of Phytohormones In Plant Response To Heat Stressmentioning

confidence: 99%

Plant Hormone-Mediated Regulation of Heat Tolerance in Response to Global Climate Change

et al. 2021

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Agriculture is largely dependent on climate and is highly vulnerable to climate change. The global mean surface temperatures are increasing due to global climate change. Temperature beyond the physiological optimum for growth induces heat stress in plants causing detrimental and irreversible damage to plant development, growth, as well as productivity. Plants have evolved adaptive mechanisms in response to heat stress. The classical plant hormones, such as auxin, abscisic acid (ABA), brassinosteroids (BRs), cytokinin (CK), salicylic acid (SA), jasmonate (JA), and ethylene (ET), integrate environmental stimuli and endogenous signals to regulate plant defensive response to various abiotic stresses, including heat. Exogenous applications of those hormones prior or parallel to heat stress render plants more thermotolerant. In this review, we summarized the recent progress and current understanding of the roles of those phytohormones in defending plants against heat stress and the underlying signal transduction pathways. We also discussed the implication of the basic knowledge of hormone-regulated plant heat responsive mechanism to develop heat-resilient plants as an effective and efficient way to cope with global warming.

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Section: Roles Of Phytohormones In Plant Response To Heat Stressmentioning

confidence: 99%

Plant Hormone-Mediated Regulation of Heat Tolerance in Response to Global Climate Change

et al. 2021

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“…TaHs-fA2bs with differential expression in sterile and fertile anthers in wheat suggest that they may be candidate genes involved in anther development (Ye et al, 2020). TaHsfA6f are highly expressed in wheat leaves during reproduction period, while most JcHsfs were highly expressed in different tissues and developing seeds (Bi et al, 2020;Zhang et al, 2020b).…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Analysis of the Heat Shock Transcription Factor Gene Family in Brassica juncea: Structure, Evolution, and Expression Profiles

Xie

et al. 2020

DNA and Cell Biology

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Heat shock transcription factor (HSF) is ubiquitous in the whole biological world and plays an important role in regulating growth and development and responses to environment stress. In this study, a total of 60 HSF transcription factors in Brassica juncea genome were identified and analyzed. Phylogenetic analysis showed that HSF genes were divided into three groups namely: A, B, and C, of which group A was further divided into nine subgroups (A1-A9). The analysis of gene structure and conserved motifs showed that some homologous genes are highly conserved. There was strong conservative microcollinearity among Brassica rapa, B. juncea, and Brassica oleracea, which provides a basis for studying the replication of gene families. Moreover, the results revealed that the promoter regions of BjuHSF genes were rich in cis-elements related to growth and development, hormone signal, and stress response. The prediction of protein interaction results showed that HSFs could interact with multiple transcription factors and proteins in the genome, while functional annotation revealed that BjuHSF genes were involved in many biological processes. The expression patterns of BjuHSF genes were analyzed by qPCR, and the results showed that these genes were closely linked to stress response, hormones, and development process. These results are a foundation for further analysis of the regulation mechanism of HSF gene family.

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“…AtHSFA2 and AtHsfA7b -overexpressing Arabidopsis plants display enhanced salt stress tolerance [ 8 , 12 ]; additionally, in Arabidopsis, AtHSFA4A regulates salt and oxidative stress responses [ 24 ], and AtHsfA6a increases salt and drought stress tolerance [ 10 ]. Transgenic overexpression of OsHsfA2e and TaHsfA6f in Arabidopsis results in tolerance to high salt stress [ 47 , 48 ]. In addition, PeHSF -overexpressing tobacco exhibits significantly improved salt tolerance [ 4 ].…”

Section: Discussionmentioning

confidence: 99%

ThHSFA1 Confers Salt Stress Tolerance through Modulation of Reactive Oxygen Species Scavenging by Directly Regulating ThWRKY4

Sun

Wang

et al. 2021

IJMS

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Heat shock transcription factors (HSFs) play critical roles in several types of environmental stresses. However, the detailed regulatory mechanisms in response to salt stress are still largely unknown. In this study, we examined the salt-induced transcriptional responses of ThHSFA1-ThWRKY4 in Tamarix hispida and their functions and regulatory mechanisms in salt tolerance. ThHSFA1 protein acts as an upstream regulator that can directly activate ThWRKY4 expression by binding to the heat shock element (HSE) of the ThWRKY4 promoter using yeast one-hybrid (Y1H), chromatin immunoprecipitation (ChIP), and dual-luciferase reporter assays. ThHSFA1 and ThWRKY4 expression was significantly induced by salt stress and abscisic acid (ABA) treatment in the roots and leaves of T. hispida. ThHSFA1 is a nuclear-localized protein with transactivation activity at the C-terminus. Compared to nontransgenic plants, transgenic plants overexpressing ThHSFA1 displayed enhanced salt tolerance and exhibited reduced reactive oxygen species (ROS) levels and increased antioxidant enzyme activity levels under salt stress. Therefore, we further concluded that ThHSFA1 mediated the regulation of ThWRKY4 in response to salt stress in T. hispida.

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Wheat Heat Shock Factor TaHsfA6f Increases ABA Levels and Enhances Tolerance to Multiple Abiotic Stresses in Transgenic Plants

Cited by 49 publications

References 49 publications

Plant Hormone-Mediated Regulation of Heat Tolerance in Response to Global Climate Change

Plant Hormone-Mediated Regulation of Heat Tolerance in Response to Global Climate Change

Genome-Wide Analysis of the Heat Shock Transcription Factor Gene Family in Brassica juncea: Structure, Evolution, and Expression Profiles

ThHSFA1 Confers Salt Stress Tolerance through Modulation of Reactive Oxygen Species Scavenging by Directly Regulating ThWRKY4

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