Functions of Plant’s Bzip Transcription Factors

Ali, Zulfiqar; Sarwat, Syeda Samara; Karim, Ihsan; Faridi, Rabia; Jaskani, Muhammad Jafar; Khan, Asif Ali

doi:10.21162/pakjas/16.2043

Cited by 26 publications

(21 citation statements)

References 57 publications

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“…Gene expression examined in different barley tissues showed that HvVIP1 is expressed in vascular tissues of plants like its counterpart members in the Group I bZIP proteins. Its expression profile in stress-free barley leaves, roots, immature embryos, coleoptiles and calli (Fig 3A) confirmed earlier findings regarding bZIP transcription factors’ role in vascular developmental and plant growth [16,28].…”

Section: Resultssupporting

confidence: 89%

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Characterisation of HvVIP1 and expression profile analysis of stress response regulators in barley under Agrobacterium and Fusarium infections

et al. 2019

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Arabidopsis thaliana’s VirE2-Interacting Protein 1 (VIP1) interacts with Agrobacterium tumefaciens VirE2 protein and regulates stress responses and plant immunity signaling occurring downstream of the Mitogen-Activated Protein Kinase (MPK3) signal transduction pathway. In this study, a full-length cDNA of 972bp encoding HvVIP1 was obtained from barley ( Hordeum vulgare L.) leaves. A corresponding 323 amino acid poly-peptide was shown to carry the conserved bZIP (Basic Leucine Zipper) domain within its 157 th and 223 rd amino acid residue. 13 non-synonymous SNPs were spotted within the HvVIP1 bZIP domain sequence when compared with AtVIP1 . Moreover, minor differences in the bZIP domain locations and lengths were noted when comparing Arabidopsis thaliana and Hordeum vulgare VIP1 proteins through the 3D models, structural domain predictions and disorder prediction profiling. The expression of HvVIP1 was stable in barley tissues infected by pathogen (whether Agrobacterium tumefaciens or Fusarium culmorum ), but was induced at specific time points. We found a strong correlation between the transcript accumulation of HvVIP1 and barley PR- genes HvPR1 , HvPR4 and HvPR10 , but not with HvPR3 and HvPR5 , probably due to low induction of those particular genes. In addition, a gene encoding for a member of the barley MAPK family, HvMPK1 , showed significantly higher expression after pathogenic infection of barley cells. Collectively, our results might suggest that early expression of PR genes upon infection in barley cells play a pivotal role in the Agrobacterium -resistance of this plant.

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Section: Resultssupporting

confidence: 89%

“…thaliana ) and monocotyledonous (barley, rice, wheat, maize, etc.) counterparts share certain structural similarities at the level of their ordered regions beholding the reputed bZIP domains [16, 26–28]. In our study, a variety of bioinformatics tools, domain database (i.e.…”

Section: Resultsmentioning

confidence: 99%

Characterisation of HvVIP1 and expression profile analysis of stress response regulators in barley under Agrobacterium and Fusarium infections

et al. 2019

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“…The highly conserved bZIP dimerization domain comprises a basic region and a less conserved leucine zipper domain. The basic region contains a nuclear localization signal followed by approximately 16 amino acid residues with an invariant N− -x 7 -R/K motif that binds to DNA; the leucine zipper region is responsible for the dimerization ability of bZIP [105,106]. Previous reports have shown that bZIP proteins bind specifically to C-box (GACGTC), A-box (TACGTA), G-box (CACGTG), PB-like (TGAAAA), and GLM (GTGAGTCAT) sequences in the cis -element of stress response genes [106].…”

Section: Bzip Tfsmentioning

confidence: 99%

“…The basic region contains a nuclear localization signal followed by approximately 16 amino acid residues with an invariant N− -x 7 -R/K motif that binds to DNA; the leucine zipper region is responsible for the dimerization ability of bZIP [105,106]. Previous reports have shown that bZIP proteins bind specifically to C-box (GACGTC), A-box (TACGTA), G-box (CACGTG), PB-like (TGAAAA), and GLM (GTGAGTCAT) sequences in the cis -element of stress response genes [106]. The different numbers of bZIP members that have been identified in different plants include 92 in sorghum [14], 78 in Arabidopsis [107], 191 in wheat [105], 125 in maize [72], and 63 in sesame [108].…”

Section: Bzip Tfsmentioning

confidence: 99%

Transcription Factors Associated with Abiotic and Biotic Stress Tolerance and Their Potential for Crops Improvement

Baillo

Kimotho

Zhengbin

et al. 2019

Genes

424

264

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In field conditions, crops are adversely affected by a wide range of abiotic stresses including drought, cold, salt, and heat, as well as biotic stresses including pests and pathogens. These stresses can have a marked effect on crop yield. The present and future effects of climate change necessitate the improvement of crop stress tolerance. Plants have evolved sophisticated stress response strategies, and genes that encode transcription factors (TFs) that are master regulators of stress-responsive genes are excellent candidates for crop improvement. Related examples in recent studies include TF gene modulation and overexpression approaches in crop species to enhance stress tolerance. However, much remains to be discovered about the diverse plant TFs. Of the >80 TF families, only a few, such as NAC, MYB, WRKY, bZIP, and ERF/DREB, with vital roles in abiotic and biotic stress responses have been intensively studied. Moreover, although significant progress has been made in deciphering the roles of TFs in important cereal crops, fewer TF genes have been elucidated in sorghum. As a model drought-tolerant crop, sorghum research warrants further focus. This review summarizes recent progress on major TF families associated with abiotic and biotic stress tolerance and their potential for crop improvement, particularly in sorghum. Other TF families and non-coding RNAs that regulate gene expression are discussed briefly. Despite the emphasis on sorghum, numerous examples from wheat, rice, maize, and barley are included. Collectively, the aim of this review is to illustrate the potential application of TF genes for stress tolerance improvement and the engineering of resistant crops, with an emphasis on sorghum.

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“…Only 25, 21, and 21 bZIP transcription factors were found in yeast, nematode, and fruit fly, respectively ( Riechmann et al, 2000 ). Compared to other eukaryotes, plants seem to have more bZIP homologous proteins and more conserved amino acid sequences in these homologies ( Ali et al, 2016 ). Studies have shown that the structures of bZIP protein are closely related to its biological function.…”

Section: Distribution and Classification Of Bzip Transcription Factormentioning

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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Functions of Plant’s Bzip Transcription Factors

Cited by 26 publications

References 57 publications

Characterisation of HvVIP1 and expression profile analysis of stress response regulators in barley under Agrobacterium and Fusarium infections

Characterisation of HvVIP1 and expression profile analysis of stress response regulators in barley under Agrobacterium and Fusarium infections

Transcription Factors Associated with Abiotic and Biotic Stress Tolerance and Their Potential for Crops Improvement

Regulation Mechanisms of Plant Basic Leucine Zippers to Various Abiotic Stresses

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