CBF-dependent signaling pathway: A key responder to low temperature stress in plants

Zhou, Mingqi; Shen, Chen; Wu, Lihua; Tang, Kuangang; Lin, Juan

doi:10.3109/07388551.2010.505910

Cited by 180 publications

(119 citation statements)

References 49 publications

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“…This left 22 TFs that significantly altered the accumulation of at least five GLSs. Some of these TFs were previously characterized as having a role in abiotic stress responses, including COLD RESPONSIVE BINDING FACTOR (CBF4; for full names and Arabidopsis Genome Initiative codes, see Supplemental Table S5; Haake et al, 2002;Zhou et al, 2011), ABSCISIC ACID-RESPONSIVE ELEMENT BINDING FACTOR (ABF4; Choi et al, 2005;Xu et al, 2013), NAC DOMAIN-CONTAINING PROTEIN102 Figure 5. Spring-embedded network linking TFs and promoters via their interactions.…”

Section: Phenotypic Validation Of Gls Regulatory Potentialmentioning

confidence: 99%

Promoter-Based Integration in Plant Defense Regulation

Li¹,

Gaudinier

Tang

et al. 2014

Plant Physiology

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A key unanswered question in plant biology is how a plant regulates metabolism to maximize performance across an array of biotic and abiotic environmental stresses. In this study, we addressed the potential breadth of transcriptional regulation that can alter accumulation of the defensive glucosinolate metabolites in Arabidopsis (Arabidopsis thaliana). A systematic yeast one-hybrid study was used to identify hundreds of unique potential regulatory interactions with a nearly complete complement of 21 promoters for the aliphatic glucosinolate pathway. Conducting high-throughput phenotypic validation, we showed that .75% of tested transcription factor (TF) mutants significantly altered the accumulation of the defensive glucosinolates. These glucosinolate phenotypes were conditional upon the environment and tissue type, suggesting that these TFs may allow the plant to tune its defenses to the local environment. Furthermore, the pattern of TF/promoter interactions could partially explain mutant phenotypes. This work shows that defense chemistry within Arabidopsis has a highly intricate transcriptional regulatory system that may allow for the optimization of defense metabolite accumulation across a broad array of environments.An organism's growth and fitness within its environment are largely determined by its ability to efficiently obtain and utilize energy and elements to create biomass to survive. Central to this process is primary metabolism, which determines the use of energy and chemicals from the environment to produce all of the necessary building blocks for cells and the resulting biomass. To optimize fitness, metabolism must be precisely tuned and coordinated to make the most efficient use of available resources. This basic supposition is central to a wide range of biological fields from the study of organismal growth to the study of interactions with the environment, and has led to strong interest in understanding how metabolism is regulated (Karban and Baldwin, 1997;Smith and Stitt, 2007).The last decade has seen an upsurge in studies investigating the transcriptional control over metabolism. This has largely been driven by three key areas of focus: regulation of sugar metabolism, amino acid metabolism, and secondary metabolism (Desvergne et al., 2006). In most organisms, Glc levels cause transcriptional reprograming of sugar metabolism and organismal development often by a mitogen-activated protein kinase cascade (Moore et al., 2003;Rolland et al., 2006). Transcriptional control over amino acid metabolism frequently involves General Control Nonderepressible4, whereas other transcriptional activators play a role in coordinating amino acid metabolism (Hope and Struhl, 1986;Neuwald and Landsman, 1997;Li et al., 2013). Within plants, there are also amino acid pathway-specific transcription factors (TFs) known for a couple of plant amino acid biosynthetic pathways (Celenza et al., 2005;Maruyama-Nakashita et al., 2006). In plants, the transcriptional regulation of secondary metabolites has also received signifi...

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Section: Phenotypic Validation Of Gls Regulatory Potentialmentioning

confidence: 99%

Promoter-Based Integration in Plant Defense Regulation

Li¹,

Gaudinier

Tang

et al. 2014

Plant Physiology

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“…To the best of our knowledge, this is the first report of a global investigation on molecular responses of plantain to cold stress by proteomic analysis. Plants constantly face environmental stresses, among which low temperature is often one of the most critical, and one that broadly affects growth and development, as well as the yield, quality, postharvest life and geographic distribution of crop plants (1,2). Plants can be exposed to gradual temperature decreases during a fall-to-winter transition or sudden temperature drops associated with an early frost and so a range of adaptive mechanisms is essential.…”

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confidence: 99%

Quantitative Proteomic Analysis Reveals that Antioxidation Mechanisms Contribute to Cold Tolerance in Plantain (Musa paradisiaca L.; ABB Group) Seedlings

Yang

et al. 2012

Molecular & Cellular Proteomics

103

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Banana and its close relative, plantain are globally important crops and there is considerable interest in optimizing their cultivation. Plantain has superior cold tolerance compared with banana and a thorough understanding of the molecular mechanisms and responses of plantain to cold stress has great potential value for developing cold tolerant banana cultivars. In this study, we used iTRAQbased comparative proteomic analysis to investigate the temporal responses of plantain to cold stress. Plantain seedlings were exposed for 0, 6, and 24 h of cold stress at 8°C and subsequently allowed to recover for 24 h at 28°C. A total of 3477 plantain proteins were identified, of which 809 showed differential expression from the three treatments. The majority of differentially expressed proteins were predicted to be involved in oxidation-reduction, including oxylipin biosynthesis, whereas others were associated with photosynthesis, photorespiration, and several primary metabolic processes, such as carbohydrate metabolic process and fatty acid beta-oxidation. Western blot analysis and enzyme activity assays were performed on seven differentially expressed, cold-response candidate plantain proteins to validate the proteomics data. Similar analyses of the seven candidate proteins were performed in cold-sensitive banana to examine possible functional conservation, and to compare the results to equivalent responses between the two species. Consistent results were achieved by Western blot and enzyme activity assays, demonstrating that the quantitative proteomics data collected in this study are reliable. Our results suggest that an increase of antioxidant capacity through adapted ROS scavenging capability, reduced production of ROS, and decreased lipid peroxidation contribute to molecular mechanisms for the increased cold tolerance in plantain. To the best of our knowledge, this is the first report of a global investigation on molecular responses of plantain to cold stress by proteomic analysis. Molecular & Cellular

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“…In Arabidopsis (Arabidopsis thaliana) and rice, the CBF/DREB1-dependent cold response pathway has been shown to play a predominant role in cold tolerance (Yamaguchi-Shinozaki and Shinozaki, 2006;Chinnusamy et al, 2007;Zhou et al, 2011). A previous transcriptome study in Arabidopsis indicated that 12% of the cold stress response genes were regulated by the CBF regulators and at least 28% of them were not regulated by the CBF regulators, suggesting that both the CBF/DREB-dependent and CBF/DREB-independent pathways play dominant roles in cold stress responses (Fowler and Thomashow, 2002).…”

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confidence: 99%

The OsMYB30 Transcription Factor Suppresses Cold Tolerance by Interacting with a JAZ Protein and Suppressing β-Amylase Expression

Yang

et al. 2017

Plant Physiol.

129

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Cold stress is one of the major limiting factors for rice (Oryza sativa) productivity. Several MYB transcriptional factors have been reported as important regulators in the cold stress response, but the molecular mechanisms are largely unknown. In this study, we characterized a cold-responsive R2R3-type MYB gene, OsMYB30, for its regulatory function in cold tolerance in rice. Functional analysis revealed that overexpression of OsMYB30 in rice resulted in increased cold sensitivity, while the osmyb30 knockout mutant showed increased cold tolerance. Microarray and quantitative real-time polymerase chain reaction analyses revealed that a few b-amylase (BMY) genes were down-regulated by OsMYB30. The BMY activity and maltose content, which were decreased and increased in the OsMYB30 overexpression and osmyb30 knockout mutant, respectively, were correlated with the expression patterns of the BMY genes. OsMYB30 was shown to bind to the promoters of the BMY genes. These results suggested that OsMYB30 exhibited a regulatory effect on the breakdown of starch through the regulation of the BMY genes. In addition, application of maltose had a protective effect for cell membranes under cold stress conditions. Furthermore, we identified an OsMYB30-interacting protein, OsJAZ9, that had a significant effect in suppressing the transcriptional activation of OsMYB30 and in the repression of BMY genes mediated by OsMYB30. These results together suggested that OsMYB30 might be a novel regulator of cold tolerance through the negative regulation of the BMY genes by interacting with OsJAZ9 to fine-tune the starch breakdown and the content of maltose, which might contribute to the cold tolerance as a compatible solute.

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CBF-dependent signaling pathway: A key responder to low temperature stress in plants

Cited by 180 publications

References 49 publications

Promoter-Based Integration in Plant Defense Regulation

Promoter-Based Integration in Plant Defense Regulation

Quantitative Proteomic Analysis Reveals that Antioxidation Mechanisms Contribute to Cold Tolerance in Plantain (Musa paradisiaca L.; ABB Group) Seedlings

The OsMYB30 Transcription Factor Suppresses Cold Tolerance by Interacting with a JAZ Protein and Suppressing β-Amylase Expression

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