Overexpression of a wheat (Triticum aestivum L.) bZIP transcription factor gene, TabZIP6, decreased the freezing tolerance of transgenic Arabidopsis seedlings by down-regulating the expression of CBFs

Cai, Wangting; Yang, Youxin; Wang, Weiwei; Guo, Guang-Qin; Liu, Wei; Bi, Chen

doi:10.1016/j.plaphy.2018.01.008

Cited by 49 publications

(26 citation statements)

References 50 publications

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“…Extensive studies have indicated the important functions of the bZIP transcription factors in regulating various stress signalling pathways. In Arabidopsis , overexpressing TabZIP6 from wheat ( Triticum aestivum L.) decreased the freezing tolerance of transgenic Arabidopsis seedlings [46]. Overexpression of GhABF2 , a bZIP gene from cotton ( Gossypium hirsutum L.), significantly improved drought and salt stress tolerance both in transgenic Arabidopsis and cotton plants [47].…”

Section: Discussionmentioning

confidence: 99%

Comprehensive analysis of bZIP transcription factors uncovers their roles during dimorphic floret differentiation and stress response in Cleistogenes songorica

et al. 2019

BMC Genomics

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BackgroundTranscription factors act as important regulators of transcription networks. Basic leucine zipper (bZIP) transcription factors have been shown to be involved in multiple biological processes in plants. However, no information is available for the bZIP family in Cleistogenes songorica, which is an important xerophytic and allotetraploid grass in desert grasslands.ResultsIn this study, 86 CsbZIPs were identified in the allotetraploid C. songorica genome. For location analysis, CsbZIPs were distributed evenly across two subgenomes of C. songorica. Phylogenetic tree analysis among three species indicated that CsbZIPs were evolutionarily more closely related to OsbZIPs than AtbZIPs. Syntenic and phylogenetic analyses confirmed that the CsbZIPs were mainly expanded by whole-genome duplication events. Furthermore, it was determined that rice and C. songorica might have undergone purified selection during their long evolutionary history by calculating the Ks values and Ka/Ks ratios of orthologous gene pairs. By analysing the expression patterns of CsbZIPs in different tissues and under abiotic stresses, 21 CsbZIP genes were differentially expressed between chasmogamous (CH) and cleistogamous (CL) flowers, including two FLOWERING LOCUS D (FD) genes. In shoots and roots, 79.1 and 87.2% of the CsbZIP genes, respectively, displayed transcript changes under at least one stress treatment, such as heat, cold, drought and salt. Strikingly, 17 common CsbZIP genes showed differential expression under stress response and during CL flowering. Co-expression network, GO annotation and real-time quantitative reverse transcription PCR (qRT-PCR) analyses revealed a close relationship between CL flowering-associated genes and abiotic stress-related genes.ConclusionsBZIP TFs were comprehensively analysed and identified in allotetraploid C. songorica. Our results provide insights into the evolutionary history of the bZIP family in C. songorica and provide abiotic stress-responsive and CL-associated candidate CsbZIP genes for potential applications in the genetic improvement of plants.

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Section: Discussionmentioning

confidence: 99%

Comprehensive analysis of bZIP transcription factors uncovers their roles during dimorphic floret differentiation and stress response in Cleistogenes songorica

et al. 2019

BMC Genomics

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“…Similarly, in wheat, functional analysis of a TaABL1 protein in transgenic Arabidopsis and tobacco showed that this gene is involved in accelerating stomatal closure and accumulation of osmotic substances under different stress conditions, thereby improving tolerance to multiple abiotic stresses [ 69 ]. Under cold stress, the down regulated expression of CBFs and some key COR genes in TabZIP6 -overexpressing Arabidopsis seedlings led to decreased freezing tolerance [ 70 ]. Also, TabZIP60 plays an important function in multiple abiotic responses, however, enhancing plant sensitivity to abscisic acid (ABA) during seedling growth [ 71 ].…”

Section: Transcription Factors Involved In Abiotic Stress Responsementioning

confidence: 99%

“…Further, OsbZIP23 can directly regulate OsNCED4 (ABA biosynthesis) and OsPP2C49 genes, suggesting that OsbZIP23 is involved in feedback regulation of ABA biosynthesis and signaling, as well as drought tolerance, in rice. TabZIP6 protein negatively regulates freezing tolerance through the downregulated expression of CBF1 , CBF3 , and some COR genes in transgenic Arabidopsis [ 70 ]. VaNAC26 from Vitis amurensis was reported to participate in transcriptional regulation of JA (jasmonic acid) synthesis, and signaling genes including AOC1 , LOX2 , PDF1.2 , VSP1 , and MYC2 via binding to NACRS motifs in their promoters thus impart drought tolerance [ 93 ].…”

Section: Potential Molecular Mechanisms Of Tfs In Controlling Planmentioning

confidence: 99%

Revisiting the Role of Plant Transcription Factors in the Battle against Abiotic Stress

Khan

Wang

et al. 2018

IJMS

196

118

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Owing to diverse abiotic stresses and global climate deterioration, the agricultural production worldwide is suffering serious losses. Breeding stress-resilient crops with higher quality and yield against multiple environmental stresses via application of transgenic technologies is currently the most promising approach. Deciphering molecular principles and mining stress-associate genes that govern plant responses against abiotic stresses is one of the prerequisites to develop stress-resistant crop varieties. As molecular switches in controlling stress-responsive genes expression, transcription factors (TFs) play crucial roles in regulating various abiotic stress responses. Hence, functional analysis of TFs and their interaction partners during abiotic stresses is crucial to perceive their role in diverse signaling cascades that many researchers have continued to undertake. Here, we review current developments in understanding TFs, with particular emphasis on their functions in orchestrating plant abiotic stress responses. Further, we discuss novel molecular mechanisms of their action under abiotic stress conditions. This will provide valuable information for understanding regulatory mechanisms to engineer stress-tolerant crops.

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“… Hwang et al (2014) treated Brassica rapa with low temperature stress and found that the expression of 27 BrbZIP s were significantly up-regulated, among which Bra000256 , Bra003320 , Bra004689 , Bra011648 , Bra020735 , and Bra023540 may be the key genes involved in the response to this stress. Compared with wild-type Arabidopsis thaliana , heterologous expression of TabZIP6 in wheat under cold treatment significantly reduced the expression of CBFs , key CORs , and other genes in transgenic plants, making the transgenic plants sensitive to low temperature ( Cai et al, 2018 ). However, the over-expressed wheat TabZIP14-B , TaAREB3 , and TabZIP60 in Arabidopsis thaliana can significantly enhance the ability of plants to resist cold stress.…”

Section: Bzip Tfs Involved In Cold Stress Responsementioning

confidence: 99%

Regulation Mechanisms of Plant Basic Leucine Zippers to Various Abiotic Stresses

Qian

Jiang

et al. 2020

Front. Plant Sci.

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Overexpression of a wheat (Triticum aestivum L.) bZIP transcription factor gene, TabZIP6, decreased the freezing tolerance of transgenic Arabidopsis seedlings by down-regulating the expression of CBFs

Cited by 49 publications

References 50 publications

Comprehensive analysis of bZIP transcription factors uncovers their roles during dimorphic floret differentiation and stress response in Cleistogenes songorica

Comprehensive analysis of bZIP transcription factors uncovers their roles during dimorphic floret differentiation and stress response in Cleistogenes songorica

Revisiting the Role of Plant Transcription Factors in the Battle against Abiotic Stress

Regulation Mechanisms of Plant Basic Leucine Zippers to Various Abiotic Stresses

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