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Zhang H, Wu J, Fu D, Zhang M, Wang L, Gong M. Prokaryotic expression, purification, and the in vitro and in vivo protection study of dehydrin WDHN2 from Triticum aestivum. PROTOPLASMA 2024; 261:771-781. [PMID: 38342804 DOI: 10.1007/s00709-024-01933-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 01/28/2024] [Indexed: 02/13/2024]
Abstract
Dehydrins proteins accumulate and play important protective roles in most plants during abiotic stresses. The objective of this study was to characterize a YSK2-type dehydrin gene, WDHN2, isolated from Triticum aestivum previously. In this work, wheat dehydrin WDHN2 was expressed in Escherichia coli and purified by immobilized metal affinity chromatography, which exhibited as a single band by sodium dodecyl sulfonate polyacrylamide gel electrophoresis and western blotting. We show that WDHN2 is capable of alleviating lactate dehydrogenase inactivation from heat and desiccation in vitro enzyme activity protection assay. In vivo assay of Escherichia coli viability demonstrates the enhancement of cell survival by the overexpression of WDHN2. The protein aggregation prevention assay explores that WDHN2 has a broad protective effect on the cellular proteome. The results show that WDHN2 is mainly accumulated in the nucleus and cytosol, suggesting that this dehydrin may exert its function in both cellular compartments. Our data suggest that WDHN2 acts as a chaperone molecular in vivo.
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Affiliation(s)
- Hongmei Zhang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471023, Henan, China
- Key Laboratory of Microbial Resources Exploitation and Utilization, Henan University of Science and Technology, Luoyang, 471023, Henan, China
| | - Jiafa Wu
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471023, Henan, China
- Key Laboratory of Microbial Resources Exploitation and Utilization, Henan University of Science and Technology, Luoyang, 471023, Henan, China
| | - Dandan Fu
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471023, Henan, China
| | - Min Zhang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471023, Henan, China
| | - Lunji Wang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471023, Henan, China
| | - Minggui Gong
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471023, Henan, China.
- Key Laboratory of Microbial Resources Exploitation and Utilization, Henan University of Science and Technology, Luoyang, 471023, Henan, China.
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2
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Wang X, Liu H, Li Y, Zhang L, Wang B. Heterologous overexpression of Tawzy1-2 gene encoding an SK 3 dehydrin enhances multiple abiotic stress tolerance in Escherichia coli and Nicotiania benthamiana. PLANTA 2024; 259:39. [PMID: 38265504 DOI: 10.1007/s00425-023-04328-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 12/29/2023] [Indexed: 01/25/2024]
Abstract
MAIN CONCLUSION The nuclear localized TaWZY1-2 helps plants resist abiotic stress by preserving the cell's ability to remove reactive oxygen species and decrease lipid oxidation under such conditions. In light of the unpredictable environmental conditions in which food crops grow, precise strategies must be developed by crops to effectively cope with abiotic stress and minimize damage over their lifespan. A key component in this endeavor is the group II of late embryogenesis abundant (LEA) proteins, known as dehydrins, which play crucial roles in enhancing the tolerance of plants to abiotic stress. Tawzy1-2 is a dehydrin-encoding gene which is constitutively expressed in various tissues of wheat. However, the biological function of TaWZY1-2 is not yet fully understood. In this study, TaWZY1-2 was isolated and identified in the wheat genome, and its functional role in conferring tolerance to abiotic stresses was detected in both prokaryotic and eukaryotic cells. Results showed that TaWZY1-2 is a nuclear localized hydrophilic protein that accumulates in response to multiple stresses. Escherichia coli cells expressing TaWZY1-2 showed enhanced tolerance to multiple stress conditions. Overexpression of TaWZY1-2 in Nicotiania benthamiana improved growth, germination and survival rate of the transgenic plants exposed to four kinds of abiotic stress conditions. Our results show that Tawzy1-2 transgenic plants exhibit improved capability in clearing reactive oxygen species and reducing lipid degradation, thereby enhancing their resistance to abiotic stress. This demonstrates a significant role of TaWZY1-2 in mitigating abiotic stress-induced damage. Consequently, these findings not only establish a basis for future investigation into the functional mechanism of TaWZY1-2 but also contribute to the expansion of functional diversity within the dehydrin protein family. Moreover, they identify potential candidate genes for crop optimization.
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Affiliation(s)
- Xiaoyu Wang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, Shandong, People's Republic of China
| | - Hao Liu
- College of Agriculture, Ludong University, Yantai, Shandong, People's Republic of China
| | - Yuwei Li
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, Shandong, People's Republic of China
| | - Linsheng Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Northwest Agriculture and Forestry University, Yangling, Shaanxi, People's Republic of China
| | - Bo Wang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, Shandong, People's Republic of China.
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Berkner MO, Weise S, Reif JC, Schulthess AW. Genomic prediction reveals unexplored variation in grain protein and lysine content across a vast winter wheat genebank collection. FRONTIERS IN PLANT SCIENCE 2024; 14:1270298. [PMID: 38273944 PMCID: PMC10808176 DOI: 10.3389/fpls.2023.1270298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/31/2023] [Indexed: 01/27/2024]
Abstract
Globally, wheat (Triticum aestivum L.) is a major source of proteins in human nutrition despite its unbalanced amino acid composition. The low lysine content in the protein fraction of wheat can lead to protein-energy-malnutrition prominently in developing countries. A promising strategy to overcome this problem is to breed varieties which combine high protein content with high lysine content. Nevertheless, this requires the incorporation of yet undefined donor genotypes into pre-breeding programs. Genebank collections are suspected to harbor the needed genetic diversity. In the 1970s, a large-scale screening of protein traits was conducted for the wheat genebank collection in Gatersleben; however, this data has been poorly mined so far. In the present study, a large historical dataset on protein content and lysine content of 4,971 accessions was curated, strictly corrected for outliers as well as for unreplicated data and consolidated as the corresponding adjusted entry means. Four genomic prediction approaches were compared based on the ability to accurately predict the traits of interest. High-quality phenotypic data of 558 accessions was leveraged by engaging the best performing prediction model, namely EG-BLUP. Finally, this publication incorporates predicted phenotypes of 7,651 accessions of the winter wheat collection. Five accessions were proposed as donor genotypes due to the combination of outstanding high protein content as well as lysine content. Further investigation of the passport data suggested an association of the adjusted lysine content with the elevation of the collecting site. This publicly available information can facilitate future pre-breeding activities.
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Affiliation(s)
- Marcel O. Berkner
- Breeding Research Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Seeland, Germany
| | - Stephan Weise
- Genebank Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Seeland, Germany
| | - Jochen C. Reif
- Breeding Research Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Seeland, Germany
| | - Albert W. Schulthess
- Breeding Research Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Seeland, Germany
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Mikołajczak K, Kuczyńska A, Krajewski P, Kempa M, Nuc M. Transcriptome profiling disclosed the effect of single and combined drought and heat stress on reprogramming of genes expression in barley flag leaf. FRONTIERS IN PLANT SCIENCE 2023; 13:1096685. [PMID: 36726667 PMCID: PMC9885109 DOI: 10.3389/fpls.2022.1096685] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 12/14/2022] [Indexed: 06/18/2023]
Abstract
Despite numerous studies aimed at unraveling the genetic background of barley's response to abiotic stress, the modulation of the transcriptome induced by combinatorial drought and increased temperature remains largely unrecognized. Very limited studies were done, especially on the flag leaf, which plays an important role in grain filling in cereals. In the present study, transcriptome profiles, along with chlorophyll fluorescence parameters and yield components, were compared between barley genotypes with different flag leaf sizes under single and combined drought and heat stress. High-throughput mRNA sequencing revealed 2,457 differentially expressed genes, which were functionally interpreted using Gene Ontology term enrichment analysis. The transcriptomic signature under double stress was more similar to effects caused by drought than by elevated temperature; it was also manifested at phenotypic and chlorophyll fluorescence levels. Both common and stress-specific changes in transcript abundance were identified. Genes regulated commonly across stress treatments, determining universal stress responses, were associated, among others, with responses to drought, heat, and oxidative stress. In addition, changes specific to the size of the flag leaf blade were found. Our study allowed us to identify sets of genes assigned to various processes underlying the response to drought and heat, including photosynthesis, the abscisic acid pathway, and lipid transport. Genes encoding LEA proteins, including dehydrins and heat shock proteins, were especially induced by stress treatments. Some association between genetic composition and flag leaf size was confirmed. However, there was no general coincidence between SNP polymorphism of genotypes and differential expression of genes induced by stress factors. This research provided novel insight into the molecular mechanisms of barley flag leaf that determine drought and heat response, as well as their co-occurrence.
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Chen N, Fan X, Wang C, Jiao P, Jiang Z, Ma Y, Guan S, Liu S. Overexpression of ZmDHN15 Enhances Cold Tolerance in Yeast and Arabidopsis. Int J Mol Sci 2022; 24:480. [PMID: 36613921 PMCID: PMC9820458 DOI: 10.3390/ijms24010480] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/12/2022] [Accepted: 12/24/2022] [Indexed: 12/29/2022] Open
Abstract
Maize (Zea mays L.) originates from the subtropical region and is a warm-loving crop affected by low-temperature stress. Dehydrin (DHN) protein, a member of the Group 2 LEA (late embryogenesis abundant proteins) family, plays an important role in plant abiotic stress. In this study, five maize DHN genes were screened based on the previous transcriptome sequencing data in our laboratory, and we performed sequence analysis and promoter analysis on these five DHN genes. The results showed that the promoter region has many cis-acting elements related to cold stress. The significantly upregulated ZmDHN15 gene has been further screened by expression pattern analysis. The subcellular localization results show that ZmDHN15 fusion protein is localized in the cytoplasm. To verify the role of ZmDHN15 in cold stress, we overexpressed ZmDHN15 in yeast and Arabidopsis. We found that the expression of ZmDHN15 can significantly improve the cold resistance of yeast. Under cold stress, ZmDHN15-overexpressing Arabidopsis showed lower MDA content, lower relative electrolyte leakage, and less ROS (reactive oxygen species) when compared to wild-type plants, as well as higher seed germination rate, seedling survival rate, and chlorophyll content. Furthermore, analysis of the expression patterns of ROS-associated marker genes and cold-response-related genes indicated that ZmDHN15 genes play an important role in the expression of these genes. In conclusion, the overexpression of the ZmDHN15 gene can effectively improve the tolerance to cold stress in yeast and Arabidopsis. This study is important for maize germplasm innovation and the genetic improvement of crops.
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Affiliation(s)
- Nannan Chen
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Xuhong Fan
- Jilin Academy of Agricultural Sciences, Changchun 130118, China
| | - Chunlai Wang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Peng Jiao
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Zhenzhong Jiang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Yiyong Ma
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- College of Agronomy, Jilin Agricultural University, Changchun 130118, China
| | - Shuyan Guan
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- College of Agronomy, Jilin Agricultural University, Changchun 130118, China
| | - Siyan Liu
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- College of Agronomy, Jilin Agricultural University, Changchun 130118, China
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Drira M, Ghanmi S, Zaidi I, Brini F, Miled N, Hanin M. The heat stable protein fraction from
Opuntia ficus indica
seeds exhibits an enzyme protective effect against thermal denaturation and an antibacterial activity. Biotechnol Appl Biochem 2022; 70:593-602. [PMID: 35789501 DOI: 10.1002/bab.2382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 06/30/2022] [Indexed: 11/09/2022]
Abstract
Desiccation tolerance in developing seeds occurs through several mechanisms among which, a common group of proteins named dehydrins has received considerable attention. So far, there is no information dealing with the accumulation of dehydrins in seeds of Opuntia ficus-indica. We have initiated here an extraction protocol based on two critical steps: heat and acid treatments, and the purity of this fraction was analyzed by FTIR spectroscopy. Western blot analysis of the heat-stable protein fraction (HSF) revealed two main bands of approximately 45 and 44 kDa, while three others of ∼40, 32, and 31 kDa were faintly visible, which were recognized by anti-dehydrin antibodies. This fraction exhibited a Cu2+ -dependent resistance to protease treatments. Next, we performed a series of assays to compare the functional properties of the HSF with those of the previously characterized wheat dehydrin (DHN-5). Antibacterial assays revealed that HSF exhibits only moderate antibacterial activities against gram-negative and gram-positive bacteria, with a minimum inhibition concentration ranging from 0.25 to 1 mg/ml. However, in vitro assays revealed that compared to DHN-5, HSF exhibits higher protective activities of the lactate dehydrogenase (LDH) when exposed to heat, freezing, and dehydration stresses. The protective role of HSF seems to be linked to its best ability to minimize protein aggregation.
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Affiliation(s)
- Marwa Drira
- Laboratory of Plant Biotechnology Applied to the Improvement of Cultures Faculty of Sciences of Sfax University of Sfax B.P. 1171, 3000 Sfax 3029 Tunisia
| | - Siwar Ghanmi
- Plant Physiology and Functional Genomics Research Unit Institute of Biotechnology. University of Sfax BP “1175” Sfax 3038 Tunisia
| | - Ikram Zaidi
- Biotechnology and Plant Improvement Laboratory Center of Biotechnology of Sfax (CBS)‐University of Sfax Sfax 3018 Tunisia
| | - Faiçal Brini
- Biotechnology and Plant Improvement Laboratory Center of Biotechnology of Sfax (CBS)‐University of Sfax Sfax 3018 Tunisia
| | - Nabil Miled
- Plant Physiology and Functional Genomics Research Unit Institute of Biotechnology. University of Sfax BP “1175” Sfax 3038 Tunisia
- Department of Biological Sciences College of Science. University of Jeddah Asfan Road Saudi Arabia
| | - Moez Hanin
- Plant Physiology and Functional Genomics Research Unit Institute of Biotechnology. University of Sfax BP “1175” Sfax 3038 Tunisia
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Liu J, Dai M, Li J, Zhang Y, Ren Y, Xu J, Gao W, Guo S. Expression, Purification, and Preliminary Protection Study of Dehydrin PicW1 From the Biomass of Picea wilsonii. Front Bioeng Biotechnol 2022; 10:870672. [PMID: 35480979 PMCID: PMC9036995 DOI: 10.3389/fbioe.2022.870672] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Dehydrins (DHNs) belong to group II of late embryogenesis-abundant (LEA) proteins, which are up-regulated in most plants during cold, drought, heat, or salinity stress. Despite the importance of dehydrins for the plants to resist abiotic stresses, it is necessary to obtain plant-derived dehydrins from different biomass. Generally, dehydrin PicW1 from Picea wilsonii is involved in Kn-type dehydrin with five K-segments, which has a variety of biological activities. In this work, Picea wilsonii dehydrin PicW1 was expressed in Escherichia coli and purified by chitin-affinity chromatography and size-exclusion chromatography, which showed as a single band by SDS-PAGE. A cold-sensitive enzyme of lactate dehydrogenase (LDH) is used to explore the protective activities of other proteins. Temperature stress assays showed that PicW1 had an effective protective effect on LDH activity, which was better than that of bovine serum albumin (BSA). This study provides insights into the purification and protective activity of K5 DHNs for the advancement of dehydrin structure and function from biomass.
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Affiliation(s)
- Junhua Liu
- Biological Physics Laboratory, College of Science, Beijing Forestry University, Beijing, China
| | - Mei Dai
- Biological Physics Laboratory, College of Science, Beijing Forestry University, Beijing, China
| | - Jiangtao Li
- Biological Physics Laboratory, College of Science, Beijing Forestry University, Beijing, China
| | - Yitong Zhang
- Biological Physics Laboratory, College of Science, Beijing Forestry University, Beijing, China
| | - Yangjie Ren
- Biological Physics Laboratory, College of Science, Beijing Forestry University, Beijing, China
| | - Jichen Xu
- National Engineering Laboratory of Tree Breeding, Beijing Forestry University, Beijing, China
| | - Wei Gao
- Biological Physics Laboratory, College of Science, Beijing Forestry University, Beijing, China
| | - Sujuan Guo
- Key Laboratory of Forest Cultivation and Conservation, Ministry of Education, Beijing Forestry University, Beijing, China
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8
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The Halophyte Dehydrin Sequence Landscape. Biomolecules 2022; 12:biom12020330. [PMID: 35204830 PMCID: PMC8869203 DOI: 10.3390/biom12020330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 12/04/2022] Open
Abstract
Dehydrins (DHNs) belong to the LEA (late embryogenesis abundant) family group II, that comprise four conserved motifs (the Y-, S-, F-, and K-segments) and are known to play a multifunctional role in plant stress tolerance. Based on the presence and order of these segments, dehydrins are divided into six subclasses: YnSKn, FnSKn, YnKn, SKn, Kn, and KnS. DHNs are rarely studied in halophytes, and their contribution to the mechanisms developed by these plants to survive in extreme conditions remains unknown. In this work, we carried out multiple genomic analyses of the conservation of halophytic DHN sequences to discover new segments, and examine their architectures, while comparing them with their orthologs in glycophytic plants. We performed an in silico analysis on 86 DHN sequences from 10 halophytic genomes. The phylogenetic tree showed that there are different distributions of the architectures among the different species, and that FSKn is the only architecture present in every plant studied. It was found that K-, F-, Y-, and S-segments are highly conserved in halophytes and glycophytes with a few modifications, mainly involving charged amino acids. Finally, expression data collected for three halophytic species (Puccinillia tenuiflora, Eutrema salsugenium, and Hordeum marinum) revealed that many DHNs are upregulated by salt stress, and the intensity of this upregulation depends on the DHN architecture.
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Abdul Aziz M, Sabeem M, Mullath SK, Brini F, Masmoudi K. Plant Group II LEA Proteins: Intrinsically Disordered Structure for Multiple Functions in Response to Environmental Stresses. Biomolecules 2021; 11:1662. [PMID: 34827660 PMCID: PMC8615533 DOI: 10.3390/biom11111662] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/01/2021] [Accepted: 11/04/2021] [Indexed: 11/16/2022] Open
Abstract
In response to various environmental stresses, plants have evolved a wide range of defense mechanisms, resulting in the overexpression of a series of stress-responsive genes. Among them, there is certain set of genes that encode for intrinsically disordered proteins (IDPs) that repair and protect the plants from damage caused by environmental stresses. Group II LEA (late embryogenesis abundant) proteins compose the most abundant and characterized group of IDPs; they accumulate in the late stages of seed development and are expressed in response to dehydration, salinity, low temperature, or abscisic acid (ABA) treatment. The physiological and biochemical characterization of group II LEA proteins has been carried out in a number of investigations because of their vital roles in protecting the integrity of biomolecules by preventing the crystallization of cellular components prior to multiple stresses. This review describes the distribution, structural architecture, and genomic diversification of group II LEA proteins, with some recent investigations on their regulation and molecular expression under various abiotic stresses. Novel aspects of group II LEA proteins in Phoenix dactylifera and in orthodox seeds are also presented. Genome-wide association studies (GWAS) indicated a ubiquitous distribution and expression of group II LEA genes in different plant cells. In vitro experimental evidence from biochemical assays has suggested that group II LEA proteins perform heterogenous functions in response to extreme stresses. Various investigations have indicated the participation of group II LEA proteins in the plant stress tolerance mechanism, spotlighting the molecular aspects of group II LEA genes and their potential role in biotechnological strategies to increase plants' survival in adverse environments.
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Affiliation(s)
- Mughair Abdul Aziz
- Integrative Agriculture Department, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain 15551, United Arab Emirates; (M.A.A.); (M.S.)
| | - Miloofer Sabeem
- Integrative Agriculture Department, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain 15551, United Arab Emirates; (M.A.A.); (M.S.)
| | - Sangeeta Kutty Mullath
- Department of Vegetable Science, College of Agriculture, Kerala Agricultural University, Thrissur 680656, India;
| | - Faical Brini
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax (CBS), University of Sfax, B.P 1177, Sfax 3018, Tunisia;
| | - Khaled Masmoudi
- Integrative Agriculture Department, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain 15551, United Arab Emirates; (M.A.A.); (M.S.)
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Ju H, Li D, Li D, Yang X, Liu Y. Overexpression of ZmDHN11 could enhance transgenic yeast and tobacco tolerance to osmotic stress. PLANT CELL REPORTS 2021; 40:1723-1733. [PMID: 34142216 DOI: 10.1007/s00299-021-02734-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 06/10/2021] [Indexed: 05/14/2023]
Abstract
KEY MESSAGE Maize group II LEA protein ZmDHN11 could protect protein activity and confer resistance to osmotic stress on transgenic yeast and tobacco. Late embryogenesis abundant (LEA) proteins are widely assumed to play crucial roles in environmental stress tolerance, but their function has remained obscure. Dehydrins are group II LEA proteins, which are highly hydrophilic plant stress proteins. In the present study, a novel group II LEA protein, ZmDHN11, was cloned and identified from maize. The expression of ZmDHN11 was induced by high osmotic stress, low temperature, salinity, and ABA (abscisic acid). The ZmDHN11 protein specifically accumulated in the nuclei and cytosol. Further study indicated that ZmDHN11 is phosphorylated by the casein kinase CKII. ZmDHN11 protected the activity of LDH under water-deficit stress. The overexpression of ZmDHN11 endows transgenic yeast and tobacco with tolerance to osmotic stress.
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Affiliation(s)
- Huining Ju
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Daxing Li
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Dequan Li
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Xinghong Yang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, Shandong, China.
| | - Yang Liu
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, Shandong, China.
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11
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Chen J, Li N, Wang X, Meng X, Cui X, Chen Z, Ren H, Ma J, Liu H. Late embryogenesis abundant (LEA) gene family in Salvia miltiorrhiza: identification, expression analysis, and response to drought stress. PLANT SIGNALING & BEHAVIOR 2021; 16:1891769. [PMID: 33818288 PMCID: PMC8078505 DOI: 10.1080/15592324.2021.1891769] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 02/10/2021] [Accepted: 02/14/2021] [Indexed: 05/19/2023]
Abstract
Late embryogenesis abundant (LEA) proteins play important roles in plant defense response to drought stress. However, genome-wide identification of the LEA gene family was not revealed in Salvia miltiorrhiza. In this study, 61 SmLEA genes were identified from S. miltiorrhiza and divided into 7 subfamilies according to their conserved domains and phylogenetic relationships. SmLEA genes contained the LEA conserved motifs and few introns. SmLEA genes of the same subfamilies had similar gene structures and predicted subcellular locations. Our results indicated that the promoters of SmLEA genes contained various cis-acting elements associated with abiotic stress response. In addition, RNA-seq and real-time PCR results suggested that SmLEA genes are specifically expressed in different tissue, and most SmLEA genes can be induced by drought stress. These results provide a valuable foundation for future functional investigations of SmLEA genes and drought stress-resistant breeding of S. miltiorrhiza.
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Affiliation(s)
- Juan Chen
- Shaanxi Academy of Traditional Chinese Medicine, Xi’an Shaanxi, China
| | - Na Li
- College of Agriculture, Henan University of Science and Technology, Luoyang Henan, China
| | - Xiaoyu Wang
- College of Life Science, Northwest A&F University, Yangling Shaanxi, China
| | - Xue Meng
- Shaanxi Academy of Traditional Chinese Medicine, Xi’an Shaanxi, China
| | - Xiaomin Cui
- Shaanxi Academy of Traditional Chinese Medicine, Xi’an Shaanxi, China
| | - Zhiyong Chen
- Shaanxi Academy of Traditional Chinese Medicine, Xi’an Shaanxi, China
| | - Hui Ren
- Shaanxi Academy of Traditional Chinese Medicine, Xi’an Shaanxi, China
| | - Jing Ma
- Inspection and Testing Center for Quality and Safety of Agricultural Products, Ningxia Institute of Agricultural Survey and Design, Yinchuan Ningxia, China
| | - Hao Liu
- College of Life Science, Northwest A&F University, Yangling Shaanxi, China
- College of Agriculture, Ludong University, Yantai Shandong, China
- CONTACT Hao Liu College of Life Science, Northwest A&F University, Yangling Shaanxi 712100, China; College of Agriculture, Ludong University, Yantai Shandong264001, China
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Upadhyaya G, Das A, Basu C, Agarwal T, Basak C, Chakraborty C, Halder T, Basu G, Ray S. Multiple copies of a novel amphipathic α-helix forming segment in Physcomitrella patens dehydrin play a key role in abiotic stress mitigation. J Biol Chem 2021; 296:100596. [PMID: 33781743 PMCID: PMC8100072 DOI: 10.1016/j.jbc.2021.100596] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/23/2021] [Accepted: 03/25/2021] [Indexed: 12/01/2022] Open
Abstract
Plants use a diverse set of proteins to mitigate various abiotic stresses. The intrinsically disordered protein dehydrin is an important member of this repertoire of proteins, characterized by a canonical amphipathic K-segment. It can also contain other stress-mitigating noncanonical segments—a likely reflection of the extremely diverse nature of abiotic stress encountered by plants. Among plants, the poikilohydric mosses have no inbuilt mechanism to prevent desiccation and therefore are likely to contain unique noncanonical stress-responsive motifs in their dehydrins. Here we report the recurring occurrence of a novel amphipathic helix-forming segment (D-segment: EGφφD(R/K)AKDAφ, where φ represents a hydrophobic residue) in Physcomitrella patens dehydrin (PpDHNA), a poikilohydric moss. NMR and CD spectroscopic experiments demonstrated the helix-forming tendency of the D-segment, with the shuffled D-segment as control. PpDHNA activity was shown to be size as well as D-segment dependent from in vitro, in vivo, and in planta studies using PpDHNA and various deletion mutants. Bimolecular fluorescence complementation studies showed that D-segment-mediated PpDHNA self-association is a requirement for stress abatement. The D-segment was also found to occur in two rehydrin proteins from Syntrichia ruralis, another poikilohydric plant like P. patens. Multiple occurrences of the D-segment in poikilohydric plant dehydrins/rehydrins, along with the experimental demonstration of the role of D-segment in stress abatement, implies that the D-segment mediates unique resurrection strategies, which may be employed by plant dehydrins that are capable of mitigating extreme stress.
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Affiliation(s)
- Gouranga Upadhyaya
- Plant Functional Genomics Laboratory, Department of Botany, University of Calcutta, Kolkata, India
| | - Arup Das
- Plant Functional Genomics Laboratory, Department of Botany, University of Calcutta, Kolkata, India
| | | | - Tanushree Agarwal
- Plant Functional Genomics Laboratory, Department of Botany, University of Calcutta, Kolkata, India
| | - Chandra Basak
- Plant Functional Genomics Laboratory, Department of Botany, University of Calcutta, Kolkata, India
| | - Chandrima Chakraborty
- Plant Functional Genomics Laboratory, Department of Botany, University of Calcutta, Kolkata, India
| | - Tanmoy Halder
- Plant Functional Genomics Laboratory, Department of Botany, University of Calcutta, Kolkata, India
| | - Gautam Basu
- Department of Biophysics, Bose Institute, Kolkata, India
| | - Sudipta Ray
- Plant Functional Genomics Laboratory, Department of Botany, University of Calcutta, Kolkata, India.
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Genome-Wide Identification and Expression Analysis of OsbZIP09 Target Genes in Rice Reveal Its Mechanism of Controlling Seed Germination. Int J Mol Sci 2021; 22:ijms22041661. [PMID: 33562219 PMCID: PMC7915905 DOI: 10.3390/ijms22041661] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/30/2021] [Accepted: 02/03/2021] [Indexed: 01/01/2023] Open
Abstract
Seed dormancy and germination are key events in plant development and are critical for crop production, and defects in seed germination or the inappropriate release of seed dormancy cause substantial losses in crop yields. Rice is the staple food for more than half of the world's population, and preharvest sprouting (PHS) is one of the most severe problems in rice production, due to a low level of seed dormancy, especially under warm and damp conditions. Therefore, PHS leads to yield loss and a decrease in rice quality and vitality. We reveal that mutation of OsbZIP09 inhibited rice PHS. Analysis of the expression of OsbZIP09 and its encoded protein sequence and structure indicated that OsbZIP09 is a typical bZIP transcription factor that contains conserved bZIP domains, and its expression is induced by ABA. Moreover, RNA sequencing (RNA-seq) and DNA affinity purification sequencing (DAP-seq) analyses were performed and 52 key direct targets of OsbZIP09 were identified, including OsLOX2 and Late Embryogenesis Abundant (LEA) family genes, which are involved in controlling seed germination. Most of these key targets showed consistent changes in expression in response to abscisic acid (ABA) treatment and OsbZIP09 mutation. The data characterize a number of key target genes that are directly regulated by OsbZIP09 and contribute to revealing the molecular mechanism that underlies how OsbZIP09 controls rice seed germination.
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Wang X, Yu Z, Liu H, Zhang Y, Bai Z, Zhang L. Effect of K-/S- segments on subcellular localization and dimerization of wheat dehydrin WZY1-2. PLANT SIGNALING & BEHAVIOR 2020; 15:1827583. [PMID: 33012219 PMCID: PMC7671062 DOI: 10.1080/15592324.2020.1827583] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 06/11/2023]
Abstract
Dehydrins (DHNs) belong to group Ⅱ late embryogenesis abundant (LEA) proteins which perform multiple functions in plants during stress conditions. Both K- and S-segments are conserved domains in the dehydrin protein family; however, there are only a few in vivo functional studies for these two conserved segments. In this study, the DHN gene wzy1-2 was isolated from Triticum aestivum and its K-/S-segment-truncated derivatives were generated. In order to explore the biological function of these two conserved fragments, subcellular localization and dimerization detection assays were performed for the K-/S-segment-truncated derivatives. Results of GFP fusion and bimolecular fluorescence complementation (BiFC) assays indicated that WZY1-2 localized to nucleus as a homologous dimer. The S-segment partially regulated the nuclear localization of WZY1-2 but did not affect its dimerization, while the K-segment influenced neither the dimer formation nor the subcellular localization.
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Affiliation(s)
- Xiaoyu Wang
- College of Life Science, Northwest A & F University, Yangling, Shaanxi, PR China
| | - Zhengyang Yu
- College of Life Science, Northwest A & F University, Yangling, Shaanxi, PR China
| | - Hao Liu
- College of Life Science, Northwest A & F University, Yangling, Shaanxi, PR China
| | - Yane Zhang
- College of Life Science, Northwest A & F University, Yangling, Shaanxi, PR China
| | - Zhenqing Bai
- College of Life Science, Northwest A & F University, Yangling, Shaanxi, PR China
| | - Linsheng Zhang
- College of Life Science, Northwest A & F University, Yangling, Shaanxi, PR China
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15
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Murvai N, Kalmar L, Szalaine Agoston B, Szabo B, Tantos A, Csikos G, Micsonai A, Kardos J, Vertommen D, Nguyen PN, Hristozova N, Lang A, Kovacs D, Buday L, Han KH, Perczel A, Tompa P. Interplay of Structural Disorder and Short Binding Elements in the Cellular Chaperone Function of Plant Dehydrin ERD14. Cells 2020; 9:E1856. [PMID: 32784707 PMCID: PMC7465474 DOI: 10.3390/cells9081856] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/16/2020] [Accepted: 07/30/2020] [Indexed: 12/23/2022] Open
Abstract
Details of the functional mechanisms of intrinsically disordered proteins (IDPs) in living cells is an area not frequently investigated. Here, we dissect the molecular mechanism of action of an IDP in cells by detailed structural analyses based on an in-cell nuclear magnetic resonance experiment. We show that the ID stress protein (IDSP) A. thaliana Early Response to Dehydration (ERD14) is capable of protecting E. coli cells under heat stress. The overexpression of ERD14 increases the viability of E. coli cells from 38.9% to 73.9% following heat stress (50 °C × 15 min). We also provide evidence that the protection is mainly achieved by protecting the proteome of the cells. In-cell NMR experiments performed in E. coli cells show that the protective activity is associated with a largely disordered structural state with conserved, short sequence motifs (K- and H-segments), which transiently sample helical conformations in vitro and engage in partner binding in vivo. Other regions of the protein, such as its S segment and its regions linking and flanking the binding motifs, remain unbound and disordered in the cell. Our data suggest that the cellular function of ERD14 is compatible with its residual structural disorder in vivo.
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Affiliation(s)
- Nikoletta Murvai
- Institute of Enzymology, Research Centre for Natural Sciences, 1117 Budapest, Hungary; (N.M.); (L.K.); (B.S.A.); (B.S.); (A.T.); (L.B.)
| | - Lajos Kalmar
- Institute of Enzymology, Research Centre for Natural Sciences, 1117 Budapest, Hungary; (N.M.); (L.K.); (B.S.A.); (B.S.); (A.T.); (L.B.)
- Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK
| | - Bianka Szalaine Agoston
- Institute of Enzymology, Research Centre for Natural Sciences, 1117 Budapest, Hungary; (N.M.); (L.K.); (B.S.A.); (B.S.); (A.T.); (L.B.)
- MTA-ELTE Protein Modelling Research Group and Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös L. University, 1117 Budapest, Hungary; (A.L.); (A.P.)
| | - Beata Szabo
- Institute of Enzymology, Research Centre for Natural Sciences, 1117 Budapest, Hungary; (N.M.); (L.K.); (B.S.A.); (B.S.); (A.T.); (L.B.)
| | - Agnes Tantos
- Institute of Enzymology, Research Centre for Natural Sciences, 1117 Budapest, Hungary; (N.M.); (L.K.); (B.S.A.); (B.S.); (A.T.); (L.B.)
| | - Gyorgy Csikos
- Department of General Zoology, Eötvös Loránd University, 1117 Budapest, Hungary;
| | - András Micsonai
- ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Institute of Biology, Eötvös Loránd University, 1117 Budapest, Hungary; (A.M.); (J.K.)
| | - József Kardos
- ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Institute of Biology, Eötvös Loránd University, 1117 Budapest, Hungary; (A.M.); (J.K.)
| | - Didier Vertommen
- Faculty of Medicine and de Duve Institute, Université Catholique de Louvain, 1200 Brussels, Belgium;
| | - Phuong N. Nguyen
- Structural Biology Brussels (SBB), Vrije Universiteit Brussel (VUB), 1050 Brussels, Belgium; (P.N.N.); (N.H.); (D.K.)
- VIB-VUB Center for Structural Biology (CSB), Vlaams Instituut voor Biotechnologie (VIB), 1050 Brussels, Belgium
| | - Nevena Hristozova
- Structural Biology Brussels (SBB), Vrije Universiteit Brussel (VUB), 1050 Brussels, Belgium; (P.N.N.); (N.H.); (D.K.)
- VIB-VUB Center for Structural Biology (CSB), Vlaams Instituut voor Biotechnologie (VIB), 1050 Brussels, Belgium
| | - Andras Lang
- MTA-ELTE Protein Modelling Research Group and Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös L. University, 1117 Budapest, Hungary; (A.L.); (A.P.)
| | - Denes Kovacs
- Structural Biology Brussels (SBB), Vrije Universiteit Brussel (VUB), 1050 Brussels, Belgium; (P.N.N.); (N.H.); (D.K.)
- VIB-VUB Center for Structural Biology (CSB), Vlaams Instituut voor Biotechnologie (VIB), 1050 Brussels, Belgium
| | - Laszlo Buday
- Institute of Enzymology, Research Centre for Natural Sciences, 1117 Budapest, Hungary; (N.M.); (L.K.); (B.S.A.); (B.S.); (A.T.); (L.B.)
| | - Kyou-Hoon Han
- Gene Editing Research Center, Division of Convergent Biomedical Research, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea;
- Biomedical Translational Research Center, Division of Convergent Biomedical Research, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
| | - Andras Perczel
- MTA-ELTE Protein Modelling Research Group and Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös L. University, 1117 Budapest, Hungary; (A.L.); (A.P.)
| | - Peter Tompa
- Institute of Enzymology, Research Centre for Natural Sciences, 1117 Budapest, Hungary; (N.M.); (L.K.); (B.S.A.); (B.S.); (A.T.); (L.B.)
- Structural Biology Brussels (SBB), Vrije Universiteit Brussel (VUB), 1050 Brussels, Belgium; (P.N.N.); (N.H.); (D.K.)
- VIB-VUB Center for Structural Biology (CSB), Vlaams Instituut voor Biotechnologie (VIB), 1050 Brussels, Belgium
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16
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Yokoyama T, Ohkubo T, Kamiya K, Hara M. Cryoprotective activity of Arabidopsis KS-type dehydrin depends on the hydrophobic amino acids of two active segments. Arch Biochem Biophys 2020; 691:108510. [PMID: 32735864 DOI: 10.1016/j.abb.2020.108510] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/06/2020] [Accepted: 07/17/2020] [Indexed: 12/29/2022]
Abstract
Dehydrins are intrinsically disordered proteins which are related to cold tolerance in plants. Dehydrins show potent cryoprotective activities for freeze-sensitive enzymes such as lactate dehydrogenase (LDH). Previous studies demonstrated that K-segments conserved in dehydrins had cryoprotective activities and that K-segment activities depended on the hydrophobic amino acids in the segment. However, the cryoprotective roles of hydrophobic amino acids in dehydrin itself have not been reported. Here, we demonstrated that hydrophobic amino acids were required for the cryoprotective activity of Arabidopsis dehydrin AtHIRD11. Cryoprotective activities were compared between AtHIRD11 and the corresponding mutant in which all hydrophobic residues were changed to T (AtHIRD11Φ/T) by using LDH. The change strikingly reduced AtHIRD11 activity. A segmentation analysis indicated that the conserved K-segment (Kseg) and a previously unidentified segment (non-K-segment 1, NK1) showed cryoprotective activities. Circular dichroism indicated that the secondary structures of all peptides showed disorder, but only cryoprotective peptides changed to the ordered forms by sodium dodecyl sulfate. Ultracentrifuge analysis indicated that AtHIRD11 and AtHIRD11Φ/T had similar molecular sizes in solution. These results suggest that not only structural disorder but also hydrophobic amino acids contributed to the cryoprotective activity of AtHIRD11. A possible mechanism based on an extended molecular shield model is proposed.
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Affiliation(s)
- Tomoka Yokoyama
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka, 422-8529, Japan
| | - Tomohiro Ohkubo
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka, 422-8529, Japan
| | - Keita Kamiya
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka, 422-8529, Japan
| | - Masakazu Hara
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka, 422-8529, Japan.
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17
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Ohkubo T, Kameyama A, Kamiya K, Kondo M, Hara M. F-segments of Arabidopsis dehydrins show cryoprotective activities for lactate dehydrogenase depending on the hydrophobic residues. PHYTOCHEMISTRY 2020; 173:112300. [PMID: 32087435 DOI: 10.1016/j.phytochem.2020.112300] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 02/10/2020] [Accepted: 02/11/2020] [Indexed: 05/26/2023]
Abstract
Although dehydrins show cryoprotective activities for freeze-sensitive enzymes, the underlying mechanism is still under investigation. Here, we report that F-segments conserved in some dehydrins cryoprotected lactate dehydrogenase (LDH) as well as K-segments, which were previously identified as cryoprotective segments of dehydrins. The cryoprotective activity levels of four F-segments of Arabidopsis dehydrins were similar to that of a typical K-segment. Amino acid substitution experiments indicated that the activity of the F-segment of Arabidopsis COR47 (designated as Fseg) depended on the hydrophobic residues (L, F, and V). Intriguingly, when all the amino acids other than the hydrophobic residues were changed to glycine, the cryoprotective activity did not change, suggesting that the hydrophobic amino acids were sufficient for Fseg activity. Circular dichroism analysis indicated that Fseg was mainly disordered in aqueous solution as well as Fseg_Φ/T, in which the hydrophobic residues of Fseg were changed to T. This suggested that the hydrophobic interaction might be related to the cryoprotective activities of Fseg.
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Affiliation(s)
- Tomohiro Ohkubo
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka, Shizuoka, 422-8529, Japan
| | - Ayuko Kameyama
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka, Shizuoka, 422-8529, Japan
| | - Keita Kamiya
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka, Shizuoka, 422-8529, Japan
| | - Mitsuru Kondo
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka, Shizuoka, 422-8529, Japan; Department of Chemistry, Faculty of Science, Shizuoka University, 836 Ohya, Shizuoka, Shizuoka, 422-8529, Japan
| | - Masakazu Hara
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Shizuoka, Shizuoka, 422-8529, Japan.
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18
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Li QF, Zhou Y, Xiong M, Ren XY, Han L, Wang JD, Zhang CQ, Fan XL, Liu QQ. Gibberellin recovers seed germination in rice with impaired brassinosteroid signalling. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 293:110435. [PMID: 32081273 DOI: 10.1016/j.plantsci.2020.110435] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 01/26/2020] [Accepted: 02/01/2020] [Indexed: 05/25/2023]
Abstract
Seed germination is essential for ensuring grain yield and quality. Germination rate, uniformity, and post-germination growth all contribute to cultivation. Although the phytohormones gibberellin (GA) and brassinosteroid (BR) are known to regulate germination, the underlying mechanism of their crosstalk in co-regulating rice seed germination remains unclear. In this study, the isobaric tags for relative and absolute quantitation (iTRAQ) proteomic approach was employed to identify target proteins responsive to GA during recovery of germination in BR-deficient and BR-insensitive rice. A total of 42 differentially abundant proteins were identified in both BR-deficient and BR-insensitive plants, and most were altered consistently in the two groups. Gene Ontology (GO) analysis revealed enrichment in proteins with binding and catalytic activity. A potential protein-protein interaction network was constructed using STRING analysis, and five Late Embryogenesis Abundant (LEA) family members were markedly down-regulated at both mRNA transcript and protein levels. These LEA genes were specifically expressed in rice seeds, especially during the latter stages of seed development. Mutation of LEA33 affected rice grain size and seed germination, possibly by reducing BR accumulation and enhancing GA biosynthesis. The findings improve our knowledge of the mechanisms by which GA and BR coordinate seed germination.
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Affiliation(s)
- Qian-Feng Li
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou, 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China.
| | - Yu Zhou
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
| | - Min Xiong
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
| | - Xin-Yu Ren
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
| | - Li Han
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
| | - Jin-Dong Wang
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
| | - Chang-Quan Zhang
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou, 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China
| | - Xiao-Lei Fan
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou, 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China
| | - Qiao-Quan Liu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou, 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China.
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Kishor PBK, Suravajhala R, Rajasheker G, Marka N, Shridhar KK, Dhulala D, Scinthia KP, Divya K, Doma M, Edupuganti S, Suravajhala P, Polavarapu R. Lysine, Lysine-Rich, Serine, and Serine-Rich Proteins: Link Between Metabolism, Development, and Abiotic Stress Tolerance and the Role of ncRNAs in Their Regulation. FRONTIERS IN PLANT SCIENCE 2020; 11:546213. [PMID: 33343588 PMCID: PMC7744598 DOI: 10.3389/fpls.2020.546213] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 10/30/2020] [Indexed: 05/06/2023]
Abstract
Lysine (Lys) is indispensable nutritionally, and its levels in plants are modulated by both transcriptional and post-transcriptional control during plant ontogeny. Animal glutamate receptor homologs have been detected in plants, which may participate in several plant processes through the Lys catabolic products. Interestingly, a connection between Lys and serotonin metabolism has been established recently in rice. 2-Aminoadipate, a catabolic product of Lys appears to play a critical role between serotonin accumulation and the color of rice endosperm/grain. It has also been shown that expression of some lysine-methylated proteins and genes encoding lysine-methyltransferases (KMTs) are regulated by cadmium even as it is known that Lys biosynthesis and its degradation are modulated by novel mechanisms. Three complex pathways co-exist in plants for serine (Ser) biosynthesis, and the relative preponderance of each pathway in relation to plant development or abiotic stress tolerance are being unfolded slowly. But the phosphorylated pathway of L-Ser biosynthesis (PPSB) appears to play critical roles and is essential in plant metabolism and development. Ser, which participates indirectly in purine and pyrimidine biosynthesis and plays a pivotal role in plant metabolism and signaling. Also, L-Ser has been implicated in plant responses to both biotic and abiotic stresses. A large body of information implicates Lys-rich and serine/arginine-rich (SR) proteins in a very wide array of abiotic stresses. Interestingly, a link exists between Lys-rich K-segment and stress tolerance levels. It is of interest to note that abiotic stresses largely influence the expression patterns of SR proteins and also the alternative splicing (AS) patterns. We have checked if any lncRNAs form a cohort of differentially expressed genes from the publicly available PPSB, sequence read archives of NCBI GenBank. Finally, we discuss the link between Lys and Ser synthesis, catabolism, Lys-proteins, and SR proteins during plant development and their myriad roles in response to abiotic stresses.
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Affiliation(s)
- P. B. Kavi Kishor
- Department of Biotechnology, Vignan’s Foundation for Science, Technology and Research (Deemed to be University), Guntur, India
- *Correspondence: P. B. Kavi Kishor,
| | | | | | - Nagaraju Marka
- Biochemistry Division, National Institute of Nutrition-ICMR, Hyderabad, India
| | | | - Divya Dhulala
- Department of Genetics, Osmania University, Hyderabad, India
| | | | - Kummari Divya
- Department of Genetics, Osmania University, Hyderabad, India
| | - Madhavi Doma
- Department of Genetics, Osmania University, Hyderabad, India
| | | | - Prashanth Suravajhala
- Department of Biotechnology and Bioinformatics, Birla Institute of Scientific Research, Jaipur, India
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Genome-wide identification of and functional insights into the late embryogenesis abundant (LEA) gene family in bread wheat (Triticum aestivum). Sci Rep 2019; 9:13375. [PMID: 31527624 PMCID: PMC6746774 DOI: 10.1038/s41598-019-49759-w] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 08/29/2019] [Indexed: 12/20/2022] Open
Abstract
Late embryogenesis abundant (LEA) proteins are involved in the responses and adaptation of plants to various abiotic stresses, including dehydration, salinity, high temperature, and cold. Here, we report the first comprehensive survey of the LEA gene family in “Chinese Spring” wheat (Triticum aestivum). A total of 179 TaLEA genes were identified in T. aestivum and classified into eight groups. All TaLEA genes harbored the LEA conserved motif and had few introns. TaLEA genes belonging to the same group exhibited similar gene structures and chromosomal locations. Our results revealed that most TaLEA genes contained abscisic acid (ABA)-responsive elements (ABREs) and various cis-acting elements associated with the stress response in the promoter region and were induced under ABA and abiotic stress treatments. In addition, 8 genes representing each group were introduced into E. coli and yeast to investigate the protective function of TaLEAs under heat and salt stress. TaLEAs enhanced the tolerance of E. coli and yeast to salt and heat, indicating that these proteins have protective functions in host cells under stress conditions. These results increase our understanding of LEA genes and provide robust candidate genes for future functional investigations aimed at improving the stress tolerance of wheat.
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21
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The maize late embryogenesis abundant protein ZmDHN13 positively regulates copper tolerance in transgenic yeast and tobacco. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.cj.2018.09.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Hu T, Liu Y, Zhu S, Qin J, Li W, Zhou N. Overexpression of OsLea14-A improves the tolerance of rice and increases Hg accumulation under diverse stresses. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:10537-10551. [PMID: 30762181 DOI: 10.1007/s11356-019-04464-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 02/03/2019] [Indexed: 04/16/2023]
Abstract
The group 5 LEA (late embryogenesis abundant) proteins are an atypical LEA protein group, which is associated with resistance to multiple stresses. In this study, OsLea14-A gene was isolated from Oryza sativa L., which encodes a 5C LEA protein with 151 amino acids. The qPCR analysis showed that OsLea14-A expressed in all tissues and organs at all times. The expression of OsLea14-A in the panicles of plumping stage were dramatically increased. The heterologous expression of OsLea14-A in Escherichia coli improved its growth performance under salinity, desiccation, high temperature, and freeze-thaw stresses. The purified OsLea14-A protein can protect LDH activity from freeze-thaw-, heat-, and desiccation-induced inactivation. The overexpression of OsLea14-A in rice improved tolerance to dehydration, high salinity, CuSO4, and HgCl2, but excluding K2Cr2O7. The analysis of metal contents showed that the accumulation of OsLea14-A protein in transgenic rice could increase the accumulation of Hg, but could not increase the accumulation of Na, Cr, and Cu after HgCl2, NaCl, K2Cr2O7, and CuSO4 treatment, respectively. These results suggested that OsLea14-A conferred multiple stress tolerance and Hg accumulation, which made it a possible gene in genetic improvement for plants to acclimatize itself to multiple stresses and remediate Hg-contaminated soil.
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Affiliation(s)
- Tingzhang Hu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, No. 174, Shazheng Street, Shapingba District, Chongqing, 400030, People's Republic of China.
| | - Yuanli Liu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, No. 174, Shazheng Street, Shapingba District, Chongqing, 400030, People's Republic of China
| | - Shanshan Zhu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, No. 174, Shazheng Street, Shapingba District, Chongqing, 400030, People's Republic of China
| | - Juan Qin
- College of Food and Biological Engineering, Chongqing Three Gorges University, Chongqing, 404120, China
| | - Wenping Li
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, No. 174, Shazheng Street, Shapingba District, Chongqing, 400030, People's Republic of China
| | - Nong Zhou
- College of Food and Biological Engineering, Chongqing Three Gorges University, Chongqing, 404120, China
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Liu H, Yang Y, Zhang L. Identification of upstream transcription factors and an interacting PP2C protein of dehydrin WZY2 gene in wheat. PLANT SIGNALING & BEHAVIOR 2019; 14:1678370. [PMID: 31608778 PMCID: PMC6866685 DOI: 10.1080/15592324.2019.1678370] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
As functional proteins dehydrins are found in many maturing seeds and vegetable tissue under adverse environmental conditions. However, the regulation of dehydrin expression remains unclear.To explore regulatory mechanisms of wheat dehydrin WZY2 expression under abiotic stresses, we constructed a cDNA library from PEG- and cold-treated wheat seedlings and performed yeast one-hybrid assay and yeast two-hybrid assay to identify the upstream transcription factors and protein interacting with dehydrin WZY2 gene. Yeast one-hybrid assay illustrated that bHLH49-like (GenBank NO. XM_020296294), zinc finger A20 and AN1 domain-containing stress-associated protein 6-like (GenBank NO. XM_020341647), and bHLH47-like (GenBank NO. XM_020313116) proteins can bind and interact with the promoter of the WZY2, these sequences are Aegilops tauschii transcription factors, the diploid progenitor of the D genome of hexaploid wheat (Triticum aestivum, genomes AABBDD). Real-time PCR analyzes unraveled the stress responsive expression of XM_020296294, XM_020341647, and XM_020313116 in wheat. XM_020296294 and XM_020341647 showed a similar expression patterns with WZY2. Yeast two-hybrid assay indicated that PP2C (GenBank NO. XM_020293398) protein can interact with WZY2. These results provided evidences that WZY2 could be positively regulated by XM_020296294 and XM_020341647 transcription factors, and WZY2 may also play an important role in the ABA signaling pathway through interaction with PP2C to regulate stress-responsive genes expression in wheat. The obtained results contribute for provide a better understanding of the regulatory mechanism of dehydrin expression under abiotic stresses in wheat.
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Affiliation(s)
- Hao Liu
- College of life science/State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, Shannxi, China
| | - Ying Yang
- College of life science/State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, Shannxi, China
- College of Nursing, Weinan Vocational&Technical College, Weinan, Shannxi, China
| | - Linsheng Zhang
- College of life science/State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, Shannxi, China
- CONTACT Linsheng Zhang College of life science/State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, Shannxi, China
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Edrisi Maryan K, Samizadeh Lahiji H, Farrokhi N, Hasani Komeleh H. Analysis of Brassica napus dehydrins and their Co-Expression regulatory networks in relation to cold stress. Gene Expr Patterns 2018; 31:7-17. [PMID: 30408599 DOI: 10.1016/j.gep.2018.10.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 10/21/2018] [Accepted: 10/22/2018] [Indexed: 10/27/2022]
Abstract
Dehydrins (DHNs) are plant specific cold and drought stress-responsive proteins that belong to late embryogenesis abundant (LEA) protein families. B. napus DHNs (BnDHNs) were computationally analyzed to establish gene regulatory- and protein-protein interaction networks. Promoter analyses suggested functionality of phytohormones in BnDHNs gene network. The relative expressions of some BnDHNs were analyzed using qRT-PCR in seedling leaves of both cold-tolerant (Zarfam) and -sensitive (Sari Gul) canola treated/untreated by cold. Our expression data were indicative of the importance of BnDHNs in cold tolerance in Zarfam. BnDHNs were classified into three classes according to the expression pattern. Moreover, expression of three BnDHN types, SKn (BnLEA10 and BnLEA18), YnKn (BnLEA90) and YnSKn (BnLEA104) were significantly high in the tolerant cultivar at 12 h of cold treatment. Our findings put forward the possibility of considering these genes as screening biomarker to determine cold-tolerant breeding lines; something that needs to be further corroborated. Furthermore, these genes may have some implications in developing such tolerant lines via transgenesis.
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Affiliation(s)
- Khazar Edrisi Maryan
- Department of Plant Biotechnology, Faculty of Agriculture, University of Guilan, Rasht, Iran
| | | | - Naser Farrokhi
- Department of Cell and Molecular Biology, Faculty of Biological Sciences and Biotechnology, Shahid Beheshti University. G.C., Evin, Tehran, Iran.
| | - Hassan Hasani Komeleh
- Department of Plant Biotechnology, Faculty of Agriculture, University of Guilan, Rasht, Iran
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25
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Yu Z, Wang X, Zhang L. Structural and Functional Dynamics of Dehydrins: A Plant Protector Protein under Abiotic Stress. Int J Mol Sci 2018; 19:ijms19113420. [PMID: 30384475 PMCID: PMC6275027 DOI: 10.3390/ijms19113420] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/24/2018] [Accepted: 10/26/2018] [Indexed: 11/16/2022] Open
Abstract
Abiotic stress affects the growth and development of crops tremendously, worldwide. To avoid adverse environmental effects, plants have evolved various efficient mechanisms to respond and adapt to harsh environmental factors. Stress conditions are associated with coordinated changes in gene expressions at a transcriptional level. Dehydrins have been extensively studied as protectors in plant cells, owing to their vital roles in sustaining the integrity of membranes and lactate dehydrogenase (LDH). Dehydrins are highly hydrophilic and thermostable intrinsically disordered proteins (IDPs), with at least one Lys-rich K-segment. Many dehydrins are induced by multiple stress factors, such as drought, salt, extreme temperatures, etc. This article reviews the role of dehydrins under abiotic stress, regulatory networks of dehydrin genes, and the physiological functions of dehydrins. Advances in our understanding of dehydrin structures, gene regulation and their close relationships with abiotic stresses demonstrates their remarkable ability to enhance stress tolerance in plants.
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Affiliation(s)
- Zhengyang Yu
- College of Life Science/State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China.
| | - Xin Wang
- College of Life Science/State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China.
| | - Linsheng Zhang
- College of Life Science/State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China.
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26
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Zhang H, Shi Y, Liu X, Wang R, Li J, Xu J. Transgenic creeping bentgrass plants expressing a Picea wilsonii dehydrin gene (PicW) demonstrate improved freezing tolerance. Mol Biol Rep 2018; 45:1627-1635. [PMID: 30105551 DOI: 10.1007/s11033-018-4304-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 08/09/2018] [Indexed: 10/28/2022]
Abstract
Agrostis stolonifera L. 'Penn A-4' is a common creeping bentgrass species that is widely used in urban landscaping and golf courses. To prolong the green stage of this grass, a dehydrin gene PicW isolated from Wilson's spruce (Picea wilsonii) was transformed into plants of 'Penn A-4' cultivar via a straightforward stolon node infection system. A putative transgenic plant was obtained and its tolerance to low-temperature stress was evaluated. When the transgenic line was subjected to a freezing (- 5 °C) treatment, it showed better viability and more robust physiology than wild type, as evidenced by higher soluble sugar and proline contents, and lower relative electrical conductivity and malondialdehyde content. The transgenic line also showed tolerance to a chilling treatment (5 °C), although its performance was not significantly different from that of wild-type plants. Overall, the research here clearly revealed the explicit role of PicW in increasing freezing tolerance of grass at the whole-plant level, and demonstrated that the straightforward stolon node transformation method could be well used to genetically modify turfgrass. The obtained transgenic line might be as genetic resource for breeding program and practiced to grow in cold temperate zones.
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Affiliation(s)
- Hao Zhang
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, 100083, China
| | - Yang Shi
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, 100083, China
| | - Xinru Liu
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, 100083, China
| | - Ruixue Wang
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, 100083, China
| | - Jian Li
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, 100083, China
| | - Jichen Xu
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, 100083, China.
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Li N, Zhang S, Liang Y, Qi Y, Chen J, Zhu W, Zhang L. Label-free quantitative proteomic analysis of drought stress-responsive late embryogenesis abundant proteins in the seedling leaves of two wheat (Triticum aestivum L.) genotypes. J Proteomics 2018; 172:122-142. [DOI: 10.1016/j.jprot.2017.09.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 09/27/2017] [Accepted: 09/29/2017] [Indexed: 10/18/2022]
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Zhang H, Zheng J, Su H, Xia K, Jian S, Zhang M. Molecular Cloning and Functional Characterization of the Dehydrin ( IpDHN) Gene From Ipomoea pes-caprae. FRONTIERS IN PLANT SCIENCE 2018; 9:1454. [PMID: 30364314 PMCID: PMC6193111 DOI: 10.3389/fpls.2018.01454] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 09/12/2018] [Indexed: 05/02/2023]
Abstract
Dehydrin (DHN) genes can be rapidly induced to offset water deficit stresses in plants. Here, we reported on a dehydrin gene (IpDHN) related to salt tolerance isolated from Ipomoea pes-caprae L. (Convolvulaceae). The IpDHN protein shares a relatively high homology with Arabidopsis dehydrin ERD14 (At1g76180). IpDHN was shown to have a cytoplasmic localization pattern. Quantitative RT-PCR analyses indicated that IpDHN was differentially expressed in most organs of I. pes-caprae plants, and its expression level increased after salt, osmotic stress, oxidative stress, cold stress and ABA treatments. Analysis of the 974-bp promoter of IpDHN identified distinct cis-acting regulatory elements, including an MYB binding site (MBS), ABRE (ABA responding)-elements, Skn-1 motif, and TC-rich repeats. The induced expression of IpDHN in Escherichia coli indicated that IpDHN might be involved in salt, drought, osmotic, and oxidative stresses. We also generated transgenic Arabidopsis lines that over-expressed IpDHN. The transgenic Arabidopsis plants showed a significant enhancement in tolerance to salt/drought stresses, as well as less accumulation of hydrogen peroxide (H2O2) and the superoxide radical (O2 -), accompanied by increasing activity of the antioxidant enzyme system in vivo. Under osmotic stresses, the overexpression of IpDHN in Arabidopsis can elevate the expression of ROS-related and stress-responsive genes and can improve the ROS-scavenging ability. Our results indicated that IpDHN is involved in cellular responses to salt and drought through a series of pleiotropic effects that are likely involved in ROS scavenging and therefore influence the physiological processes of microorganisms and plants exposed to many abiotic stresses.
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Affiliation(s)
- Hui Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Jiexuan Zheng
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Huaxiang Su
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Kuaifei Xia
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Shuguang Jian
- Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Mei Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- *Correspondence: Mei Zhang,
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29
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Zhou Y, He P, Xu Y, Liu Q, Yang Y, Liu S. Overexpression of CsLEA11, a Y 3SK 2-type dehydrin gene from cucumber (Cucumis sativus), enhances tolerance to heat and cold in Escherichia coli. AMB Express 2017; 7:182. [PMID: 28963660 PMCID: PMC5622017 DOI: 10.1186/s13568-017-0483-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 09/19/2017] [Indexed: 01/26/2023] Open
Abstract
As the group II LEA (late embryogenesis abundant) proteins, dehydrins (DHNs) play an important role in plant growth and development, as well as in response to abiotic or biotic stress challenges. In this study, a DHN gene named CsLEA11 was identified and characterized from Cucumis sativus. Sequence analysis of CsLEA11 showed that it is a Y3SK2-type DHN protein rich in hydrophilic amino acids. Expression analyses revealed that the transcription of CsLEA11 could be significantly induced by heat and cold stress. The recombinant plasmid was transformed into Escherichia coli BL21 and isopropy-β-D-thiogalactoside (IPTG) was used to induce recombinant E. coli to express CsLEA11 gene. Overexpression of CsLEA11 in E. coli enhanced cell viability and conferred tolerance to heat and cold stress. Furthermore, CsLEA11 protein could protect the activity of lactate dehydrogenase (LDH) under heat stress. Taken together, our data demonstrate that CsLEA11 might function in tolerance of cucumber to heat and cold stress.
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30
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Liu Y, Song Q, Li D, Yang X, Li D. Multifunctional Roles of Plant Dehydrins in Response to Environmental Stresses. FRONTIERS IN PLANT SCIENCE 2017; 8:1018. [PMID: 28649262 PMCID: PMC5465263 DOI: 10.3389/fpls.2017.01018] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 05/29/2017] [Indexed: 05/18/2023]
Abstract
To respond to environmental changes, plants have developed complex mechanisms that allow them to rapidly perceive and respond to abiotic stresses. Late embryogenesis abundant (LEA) proteins are a large and diverse family that play important roles in environmental stress tolerance in plants. Dehydrins belong to group II LEA proteins, which are considered stress proteins involved in the formation of plants' protective reactions to dehydration. Some studies have demonstrated that dehydrins could binding metal ions or lipid vesicles. In vitro experiments revealed that dehydrins could protect the activity of enzyme from damage caused by environmental stress. Although many studies have been conducted to understand their roles in abiotic stresses, the molecular function of dehydrins is still unclear. In this review, to generate new ideas for elucidating dehydrins' functions, we highlight the functional characteristics of dehydrins to understand their roles under environmental stress in plants.
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Affiliation(s)
| | | | | | | | - Dequan Li
- *Correspondence: Dequan Li, Xinghong Yang,
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31
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Chen J, Fan L, Du Y, Zhu W, Tang Z, Li N, Zhang D, Zhang L. Temporal and spatial expression and function of TaDlea3 in Triticum aestivum during developmental stages under drought stress. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2016; 252:290-299. [PMID: 27717465 DOI: 10.1016/j.plantsci.2016.08.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 08/14/2016] [Accepted: 08/16/2016] [Indexed: 05/27/2023]
Abstract
Drought stress is a major factor limiting wheat growth and productivity. Late embryogenesis abundant (LEA) proteins are tolerant to water-related stress. To reveal the regulatory mechanisms of LEA proteins under drought stress, we cloned a novel group 3 LEA gene, namely, TaDlea3, from wheat (Triticum aestivum L.) Shaanhe 6. Subcellular localization assay showed that TaDlea3 protein accumulated in the cytoplasm. Quantitative real-time polymerase chain reaction results revealed that TaDlea3 expression was induced by drought stress. Western blot results indicated that TaDlea3 protein expression gradually increased with drought stress during four different developmental stages. Under normal conditions, no obvious phenotype difference was observed between the transgenic and wild-type seedlings. Meanwhile, the overexpression of TaDlea3 in Arabidopsis resulted in enhanced tolerance to drought stress, as determined by the assessment of antioxidant enzyme activities. Our results provide a basis for highly detailed functional analyses of LEA proteins and offer a promising approach for improving the tolerances of wheat cultivars to drought stress through genetic engineering.
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Affiliation(s)
- Juan Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences Northwest A&F University, Yangling 712100, PR China
| | - Lei Fan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences Northwest A&F University, Yangling 712100, PR China
| | - Ya Du
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences Northwest A&F University, Yangling 712100, PR China
| | - Weining Zhu
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, Xi' an 710069, PR China
| | - Ziqin Tang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences Northwest A&F University, Yangling 712100, PR China
| | - Na Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences Northwest A&F University, Yangling 712100, PR China
| | - Dapeng Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences Northwest A&F University, Yangling 712100, PR China
| | - Linsheng Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences Northwest A&F University, Yangling 712100, PR China.
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32
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Hristozova N, Tompa P, Kovacs D. A Novel Method for Assessing the Chaperone Activity of Proteins. PLoS One 2016; 11:e0161970. [PMID: 27564234 PMCID: PMC5001627 DOI: 10.1371/journal.pone.0161970] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 08/15/2016] [Indexed: 12/02/2022] Open
Abstract
Protein chaperones are molecular machines which function both during homeostasis and stress conditions in all living organisms. Depending on their specific function, molecular chaperones are involved in a plethora of cellular processes by playing key roles in nascent protein chain folding, transport and quality control. Among stress protein families-molecules expressed during adverse conditions, infection, and diseases-chaperones are highly abundant. Their molecular functions range from stabilizing stress-susceptible molecules and membranes to assisting the refolding of stress-damaged proteins, thereby acting as protective barriers against cellular damage. Here we propose a novel technique to test and measure the capability for protective activity of known and putative chaperones in a semi-high throughput manner on a plate reader. The current state of the art does not allow the in vitro measurements of chaperone activity in a highly parallel manner with high accuracy or high reproducibility, thus we believe that the method we report will be of significant benefit in this direction. The use of this method may lead to a considerable increase in the number of experimentally verified proteins with such functions, and may also allow the dissection of their molecular mechanism for a better understanding of their function.
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Affiliation(s)
- Nevena Hristozova
- Structural Biology Department, Flemish Institute of Biotechnology, Brussels, Belgium
- Structural Biology Department, Free University Brussels, Brussels, Belgium
| | - Peter Tompa
- Structural Biology Department, Flemish Institute of Biotechnology, Brussels, Belgium
- Structural Biology Department, Free University Brussels, Brussels, Belgium
- Institute of Enzymology, Hungarian Academy of Sciences, Budapest, Hungary
| | - Denes Kovacs
- Structural Biology Department, Flemish Institute of Biotechnology, Brussels, Belgium
- Structural Biology Department, Free University Brussels, Brussels, Belgium
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33
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Zhang W, Yang G, Mu D, Li H, Zang D, Xu H, Zou X, Wang Y. An Ethylene-responsive Factor BpERF11 Negatively Modulates Salt and Osmotic Tolerance in Betula platyphylla. Sci Rep 2016; 6:23085. [PMID: 26980058 PMCID: PMC4793294 DOI: 10.1038/srep23085] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 03/01/2016] [Indexed: 12/17/2022] Open
Abstract
Ethylene responsive factors (ERFs) play important roles in the abiotic stress; however, only a few ERF genes from woody plants have been functionally characterized. In the present study, an ERF gene from Betula platyphylla (birch), BpERF11, was functionally characterized in response to abiotic stress. BpERF11 is a nuclear protein, which could specifically bind to GCC boxes and DRE motifs. BpERF11-overexpressing and BpERF11 RNA interference (RNAi) knockdown plants were generated for gain- and loss-of-function analysis. BpERF11 negatively regulates resistance to salt and severe osmotic stress, and the transgenic birch plants overexpressing BpERF11 shows increased electrolyte leakage and malondialdehyde (MDA) contents. BpERF11 inhibits the expression of an AtMYB61 homologous gene, resulting in increased stomatal aperture, which elevated the transpiration rate. Furthermore, BpERF11 downregulates the expression of P5CS, SOD and POD genes, but upregulates the expression of PRODH and P5CDH, which results in reduced proline levels and increased reactive oxygen species (ROS) accumulation. BpERF11 also significantly inhibits the expression of LEA and dehydrin genes that involve in abiotic stress tolerance. Therefore, BpERF11 serves as a transcription factor that negatively regulates salt and severe osmotic tolerance by modulating various physiological processes.
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Affiliation(s)
- Wenhui Zhang
- State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 150040 Harbin, China.,Agronomy College, Heilongjiang Bayi Agricultural University, 163319 Daqing, China
| | - Guiyan Yang
- State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 150040 Harbin, China
| | - Dan Mu
- State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 150040 Harbin, China
| | - Hongyan Li
- State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 150040 Harbin, China
| | - Dandan Zang
- State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 150040 Harbin, China
| | - Hongyun Xu
- State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 150040 Harbin, China
| | - Xuezhong Zou
- State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 150040 Harbin, China.,Liaoning Forestry Vocation-Technical College, 110101 Shenyang, China
| | - Yucheng Wang
- State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 150040 Harbin, China
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Bertrand A, Bipfubusa M, Castonguay Y, Rocher S, Szopinska-Morawska A, Papadopoulos Y, Renaut J. A proteome analysis of freezing tolerance in red clover (Trifolium pratense L.). BMC PLANT BIOLOGY 2016; 16:65. [PMID: 26965047 PMCID: PMC4787020 DOI: 10.1186/s12870-016-0751-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 02/29/2016] [Indexed: 05/15/2023]
Abstract
BACKGROUND Improvement of freezing tolerance of red clover (Trifolium pratense L.) would increase its persistence under cold climate. In this study, we assessed the freezing tolerance and compared the proteome composition of non-acclimated and cold-acclimated plants of two initial cultivars of red clover: Endure (E-TF0) and Christie (C-TF0) and of populations issued from these cultivars after three (TF3) and four (TF4) cycles of phenotypic recurrent selection for superior freezing tolerance. Through this approach, we wanted to identify proteins that are associated with the improvement of freezing tolerance in red clover. RESULTS Freezing tolerance expressed as the lethal temperature for 50 % of the plants (LT50) increased markedly from approximately -2 to -16 °C following cold acclimation. Recurrent selection allowed a significant 2 to 3 °C increase of the LT50 after four cycles of recurrent selection. Two-dimensional difference gel electrophoresis (2D-DIGE) was used to study variations in protein abundance. Principal component analysis based on 2D-DIGE revealed that the largest variability in the protein data set was attributable to the cold acclimation treatment and that the two genetic backgrounds had differential protein composition in the acclimated state only. Vegetative storage proteins (VSP), which are essential nitrogen reserves for plant regrowth, and dehydrins were among the most striking changes in proteome composition of cold acclimated crowns of red clovers. A subset of proteins varied in abundance in response to selection including a dehydrin that increased in abundance in TF3 and TF4 populations as compared to TF0 in the Endure background. CONCLUSION Recurrent selection performed indoor is an effective approach to improve the freezing tolerance of red clover. Significant improvement of freezing tolerance by recurrent selection was associated with differential accumulation of a small number of cold-regulated proteins that may play an important role in the determination of the level of freezing tolerance.
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Affiliation(s)
| | | | | | - Solen Rocher
- />Agriculture and Agri-Food Canada, Québec City, Canada
| | | | | | - Jenny Renaut
- />Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
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Qin YX, Qin F. Dehydrins from wheat x Thinopyrum ponticum amphiploid increase salinity and drought tolerance under their own inducible promoters without growth retardation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2016; 99:142-9. [PMID: 26756791 DOI: 10.1016/j.plaphy.2015.12.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 12/17/2015] [Accepted: 12/21/2015] [Indexed: 05/14/2023]
Abstract
Dehydrins confer abiotic stress tolerance in seedlings, but few dehydrins have been studied by transgenic analysis under their own promoters in relation to abiotic stress tolerance. Also the inducible promoters for transgenic engineering are limited. In this study, we isolated from wheat three salt-induced YSK2 dehydrin genes and their promoters. The cDNA sequences were 711, 785, and 932 bp in length, encoding proteins containing 133, 166 and 231 amino acids, respectively, and were named TaDHN1, TaDHN2, and TaDHN3. TaDHN2 doesn't contain introns, while the other two genes each contain one. Semi-quantitative reverse transcription PCR analysis revealed all three dehydrin genes are substantially induced by ABA and NaCl, but only TaDHN2 is induced in seedlings by PEG and by cold (4 °C). Regulatory sequences upstream of the first translation codon (775, 1615 and 889 bp) of the three dehydrin genes were also cloned. Cis-element prediction indicated the presence of ABRE and other abiotic-stress-related elements. Histochemical analysis using GUS expression demonstrated that all three promoters were induced by ABA, cold or NaCl. Ectopic over-expression of TaDHN1 or TaDHN3 in Arabidopsis under their own inducible promoters enhanced NaCl- and drought-stress tolerance without growth retardation.
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Affiliation(s)
- Yu-Xiang Qin
- University of Jinan, School of Biological Science and Technology, Department of Biological Science, Jinan 250022, PR China.
| | - Fangyuan Qin
- Department of School of Liquor and Food Engineering, Guizhou University, 550025, PR China
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Liu Y, Liang J, Sun L, Yang X, Li D. Group 3 LEA Protein, ZmLEA3, Is Involved in Protection from Low Temperature Stress. FRONTIERS IN PLANT SCIENCE 2016; 7:1011. [PMID: 27471509 PMCID: PMC4944394 DOI: 10.3389/fpls.2016.01011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 06/27/2016] [Indexed: 05/02/2023]
Abstract
Late embryogenesis abundant (LEA) proteins are a family of small highly hydrophilic proteins that accumulate at the onset of seed desiccation and in response to adverse conditions such as drought, salinity, low temperature, or water deficit. In previous studies, we demonstrated that ZmLEA3 could enhance the transgenic tobacco tolerance to osmotic and oxidative stresses. Here, we demonstrated that the transcription of ZmLEA3 in the maize stems could be significantly induced by low temperature and osmotic stresses and by treatment with abscisic acid (ABA) and H2O2. Further study indicated that ZmLEA3 is a single copy gene in the maize genome. The ZmLEA3 protein could protect lactate dehydrogenase (LDH) activity at low temperatures. The overexpression of ZmLEA3 conferred tolerance to low-temperature stress to transgenic tobacco, yeast (GS115) and E. coli (BL21).
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Affiliation(s)
- Yang Liu
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural UniversityTai’an, China
- *Correspondence: Yang Liu,
| | - Jianan Liang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural UniversityTai’an, China
| | - Liping Sun
- Faculty of Chemistry and Chemical Engineering, Taishan Medical UniversityTai’an, China
| | - Xinghong Yang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural UniversityTai’an, China
| | - Dequan Li
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural UniversityTai’an, China
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