Chicory R2R3-MYB transcription factors CiMYB5 and CiMYB3 regulate fructan 1-exohydrolase expression in response to abiotic stress and hormonal cues

Wei, Hongbin; Zhao, Hongbo; Su, Tao; Bausewein, Anja; Greiner, Steffen; Harms, Karsten; Rausch, Thomas

doi:10.1093/jxb/erx210

Cited by 44 publications

(30 citation statements)

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“…In transgenic Arabidopsis, the decreased osmotic potential and elevated levels of peroxidase and proline content in response to salt stress were attributed to overexpression of the PacMYBA gene from sweet cherry ( Prunus avium ) [ 42 ]. Additionally, CiMYB5 and CiMYB3 cloned from chicory ( Cichorium intybus ) were shown to be involved in the degradation of the fructan pathway in response to abiotic stress [ 112 ]. Sun et al [ 113 ] demonstrated that the Poncirus trifoliata PtsrMYB protein participates in dehydration tolerance, probably by modulation of polyamine synthesis due to regulation of the ADC (arginine decarboxylase) gene.…”

Section: Transcription Factors Involved In Abiotic Stress Responsementioning

confidence: 99%

“…Very recently, MdMYB88 and MdMYB124 were found to modulate the expression of cold-responsive genes MdCSP3 and MdCCA1 through binding to the AACCG motifs in their promoters under cold stress and increase cold hardiness both in apple and Arabidopsis [ 41 ]. Wei et al [ 112 ] revealed that chicory CiMYB3 and CiMYB5 proteins contribute to the orchestration of fructan degradation under abiotic stress and hormonal treatments by recognizing the MYB-core motifs (C/TNGTTA/G) in the promoters of fructan 1-exohydrolase ( 1-FEH ) genes. Similarly, OsMYBR1 was found to contain a cis-acting sequence, ABRE, in its promoter, and to confer dehydration tolerance to transgenic Arabidopsis via induction of stress-responsive genes such as OsProt , OsLEA3 , OsP5CS , and OsRab16 [ 103 ].…”

Section: Potential Molecular Mechanisms Of Tfs In Controlling Planmentioning

confidence: 99%

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

Khan

Wang

et al. 2018

IJMS

194

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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Section: Transcription Factors Involved In Abiotic Stress Responsementioning

confidence: 99%

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

194

118

View full text Add to dashboard Cite

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“…11). A previous study has shown that C/TNGTTA/G were the MYB-core motifs, which are abundantly present in 1-FEH promoters, and CiMYB5 displayed co-expression with its 1-FEH target genes in response to different abiotic stresses and phytohormone treatments (Wei et al, 2017). Moreover, MdMYB23 was confirmed as being able to directly activates the expression of MdCBF1 and MdCBF2 by binding to their promoters, and the transcription of MdANR was also activated by MdMYB23 to promote the biosynthesis of proanthocyanidin, which facilitates ROS scavenging to further enhance cold tolerance .…”

Section: Discussionmentioning

confidence: 99%

Peer Review #1 of "MYB transcription factors in alfalfa (Medicago sativa): genome-wide identification and expression analysis under abiotic stresses (v0.1)"

2019

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Background. Alfalfa is the most widely cultivated forage legume and one of the most economically valuable crops in the world. Its survival and production are often hampered by environmental changes. However, there are few studies on stress-resistance genes in alfalfa because of its incomplete genomic information and rare expression profile data. The MYB proteins are characterized by a highly conserved DNA-binding domain, which is large, functionally diverse, and represented in all eukaryotes. The role of MYB proteins in plant development is essential; they function in diverse biological processes, including stress and defense responses, and seed and floral development. Studies on the MYB gene family have been reported in several species, but they have not been comprehensively analyzed in alfalfa. Methods. To identify more comprehensive MYB transcription factor family genes, the sequences of 168 Arabidopsis thaliana, 430 Glycine max, 185 Medicago truncatula, and 130 Oryza sativa MYB proteins were downloaded from the Plant Transcription Factor Database. These sequences were used as queries in a BLAST search against the Medicago sativa proteome sequences provided by the Noble Research Institute. Results. In the present study, a total of 265 MsMYB proteins were obtained, including 50 R1-MYB, 186 R2R3-MYB, 26 R1R2R3-MYB, and three atypical-MYB proteins. These predicted MsMYB proteins were divided into 12 subgroups by phylogenetic analysis, and gene ontology (GO) analysis indicated that most of the MsMYB genes are involved in various biological processes. The expression profiles and quantitative real-time PCR analysis indicated that some MsMYB genes might play a crucial role in the response to abiotic stresses. Additionally, a total of 170 and 914 predicted protein-protein and protein-DNA interactions were obtained, respectively. The interactions between MsMYB043 and MSAD320162, MsMYB253 and MSAD320162, and MsMYB253 and MSAD308489 were confirmed by a yeast two-hybrid system. This work provides information on the MYB family in alfalfa that was previously lacking and might promotes the cultivation of stress-resistant alfalfa.

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“…As part of a myb-bHLH-WD40 complex, they are involved in plant secondary metabolism and responses to abiotic and biological stresses [24,25]. Several R2R3 MYBs were analyzed for their possible involvement in anthocyanin biosynthesis and accumulation, and fructan exohydrolase regulation when subjected to different stress and hormone treatments [26,27]. MYBs were implicated in sugar signaling, fruit-skin coloration, and phenylpropanoid metabolism [28][29][30].…”

Section: Discussionmentioning

confidence: 99%

Characterization of the Rosa roxbunghii Tratt transcriptome and analysis of MYB genes

Yan

Huang

Zhai

et al. 2018

Preprint

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16Rosa roxbunghii Tratt belongs to the Rosaceae family, and the fruit is flavorful, 17 economic, and highly nutritious, providing health benefits. MYB proteins play key roles 18 in R. roxbunghii' fruit development and quality. However, the available genomic and (37,545/63,727). This transcriptome data will be valuable for 33 identifying genes of interest and studying their expression and evolution.

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Chicory R2R3-MYB transcription factors CiMYB5 and CiMYB3 regulate fructan 1-exohydrolase expression in response to abiotic stress and hormonal cues

Abstract: Chicory R2R3-MYB transcription factors CiMYB5 and CiMYB3 activate promoters of 1-FEH genes (1-FEH1, 1-FEH2a, and 1-FEH2b) and are co-expressed with their target genes under various abiotic stress and phytohormone treatments.

Cited by 44 publications

References 59 publications

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

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

Peer Review #1 of "MYB transcription factors in alfalfa (Medicago sativa): genome-wide identification and expression analysis under abiotic stresses (v0.1)"

Characterization of the Rosa roxbunghii Tratt transcriptome and analysis of MYB genes

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