Characterization of SBZ1, a soybean bZIP protein that binds to the chalcone synthase gene promoter

Yoshida, Kazuko; Wakamatsu, Sayaka; Sakuta, Masaaki

doi:10.5511/plantbiotechnology.25.131

Cited by 12 publications

(6 citation statements)

References 49 publications

(34 reference statements)

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“…Both Chr2.CM0168.430.nd and chr3.CM1144.80.nc are similar to zinc finger‐like proteins. LjSGA_032996.1 is a member of the bZIP family and is 63% identical to the soybean SBZ1 protein, a transcription factor that binds to the promoter of the chalcone synthase gene (Yoshida et al ., 2008). Its expression is repressed in low‐N0 plants (2.8‐fold) and this is consistent with the expression profile of the chalcone synthase gene orthologue (Table S1; chr2.CM0018.700.nc), the only sequence involved in flavonoids metabolism to be downregulated (Table S1 and Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The second TF showing a common expression profile (downregulation) in the low‐N0 vs high‐N0 and high‐N9 vs high‐N0 transcriptomes comparisons is the LjSGA_032996.1 coding for a basic leucine zipper (b‐ZIP) transcription factor. The predicted protein shows an extensive level of identity with the soybean SBZ1 protein, a transcription factor that binds to the promoter of the chalcone synthase gene (Yoshida et al ., 2008). Chalcone synthase regulates the production of flavonoids that play a central role in the early stages of symbiosis and are possibly involved in the balance between symbiotic and defence response that modulates the nodule organogenesis program (Lawson et al ., 1994).…”

Section: Discussionmentioning

confidence: 99%

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Symbiotic competence in Lotus japonicus is affected by plant nitrogen status: transcriptomic identification of genes affected by a new signalling pathway

et al. 2009

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Summary In leguminous plants, symbiotic nitrogen (N) fixation performances and N environmental conditions are linked because nodule initiation, development and functioning are greatly influenced by the amount of available N sources. We demonstrate here that N supply also controls, beforehand, the competence of leguminous plants to perform the nodulation program. Lotus japonicus plants preincubated for 10 d in high‐N conditions, and then transferred to low N before the Mesorhizobium loti inoculation, had reduced nodulation. This phenotype was maintained for at least 6 d and a complete reacquisition of the symbiotic competence was observed only after 9 d. The time‐course analysis of the change of the symbiotic phenotype was analysed by transcriptomics. The differentially expressed genes identified are mostly involved in metabolic pathways. However, the transcriptional response also includes genes belonging to other functional categories such as signalling, stress response and transcriptional regulation. Some of these genes show a molecular identity and a regulation profile, that suggest a role as possible molecular links between the N‐dependent plant response and the nodule organogenesis program.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Symbiotic competence in Lotus japonicus is affected by plant nitrogen status: transcriptomic identification of genes affected by a new signalling pathway

et al. 2009

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“…MYB305, one of the MYB-like proteins that have been implicated in the transcriptional control of tissue-specific CHS gene expression, is also recognized by a cis element of the light-regulatory unit 1 (LRUI) of CHS in parsley (Feldbrügge et al 1997 ). G-box/H-box binding factor 1(G/HBF-1), a basic leucine zipper (bZIP) protein, that binds to both the G-box and the adjacent H-box in the proximal region of the CHS15 bean promoter, is rapidly phosphorylated in elicited soybean cells, this happen also to the CHS15, CHS7, and CHS1 promoter (Dröge et al 1997 ; Yoshida et al 2008 ). Protein and mRNA levels of G/HBF-l do not change during the induction of CHS genes following pathogen attack (Yoshida et al 2008 ) but CHS gene expression is strongly stimulated following phosphorylation responding to fungal elicitor treatment in vitro (Dröge et al 1997 ).…”

Section: Control Of Chs Gene Expressionmentioning

confidence: 99%

Chalcone synthase and its functions in plant resistance

2011

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Chalcone synthase (CHS, EC 2.3.1.74) is a key enzyme of the flavonoid/isoflavonoid biosynthesis pathway. Besides being part of the plant developmental program the CHS gene expression is induced in plants under stress conditions such as UV light, bacterial or fungal infection. CHS expression causes accumulation of flavonoid and isoflavonoid phytoalexins and is involved in the salicylic acid defense pathway. This review will discuss CHS and its function in plant resistance.

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“…Subsequently, a protein homologous to G/HBF-1 (SBZ1) was also characterized [53]. SBZ1 shows 63% identity in its amino acid sequence with G/HBF-1 and 60% with BZI-1 from tobacco [53].…”

Section: Bzips Responsive To Pathogens In Agronomic Cropsmentioning

confidence: 99%

“…SBZ1 shows 63% identity in its amino acid sequence with G/HBF-1 and 60% with BZI-1 from tobacco [53]. In general, bZIP transfactors bind to cis -elements that have an ACGT motif [7,17], though neither G/HBF-1 nor SBZ1 bind to this sequence [16,53]. …”

Section: Bzips Responsive To Pathogens In Agronomic Cropsmentioning

confidence: 99%

Plant bZIP Transcription Factors Responsive to Pathogens: A Review

Alves

Dadalto

Gonçalves

et al. 2013

IJMS

241

165

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Transcription factors of the basic leucine zipper (bZIP) family control important processes in all eukaryotes. In plants, bZIPs are master regulators of many central developmental and physiological processes, including morphogenesis, seed formation, abiotic and biotic stress responses. Modulation of the expression patterns of bZIP genes and changes in their activity often contribute to the activation of various signaling pathways and regulatory networks of different physiological processes. However, most advances in the study of plant bZIP transcription factors are related to their involvement in abiotic stress and development. In contrast, there are few examples of functional research with regard to biotic stress, particularly in the defense against pathogens. In this review, we summarize the recent progress revealing the role of bZIP transcription factors in the biotic stress responses of several plant species, from Arabidopsis to cotton. Moreover, we summarize the interacting partners of bZIP proteins in molecular responses during pathogen attack and the key components of the signal transduction pathways with which they physically interact during plant defense responses. Lastly, we focus on the recent advances regarding research on the functional role of bZIPs in major agricultural cultivars and examine the studies performed in this field.

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Characterization of SBZ1, a soybean bZIP protein that binds to the chalcone synthase gene promoter

Cited by 12 publications

References 49 publications

Symbiotic competence in Lotus japonicus is affected by plant nitrogen status: transcriptomic identification of genes affected by a new signalling pathway

Symbiotic competence in Lotus japonicus is affected by plant nitrogen status: transcriptomic identification of genes affected by a new signalling pathway

Chalcone synthase and its functions in plant resistance

Plant bZIP Transcription Factors Responsive to Pathogens: A Review

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