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Rawat S, Jugran AK, Sharma H. Recent advancements in the physiological, genetic, and genomic research on Rhododendrons for trait improvement. 3 Biotech 2024; 14:164. [PMID: 38808301 PMCID: PMC11128433 DOI: 10.1007/s13205-024-04006-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 05/09/2024] [Indexed: 05/30/2024] Open
Abstract
High species diversity, hybridization potential, broad geographical dispersal range and ornamental characteristics (i.e., attractive size, shape, structure, flowers, and evergreen) have fetched a good international market for Rhododendron. However, most species are restricted to specific geographic areas due to their habitat specificity in acidic soil and cold climates, resulting many species being classified under threat categories of the IUCN. In this review, advances in research on Rhododendron for improvement to floral display quality and stress resistance have been described. The low genetic barrier among species has created opportunities for extensive hybridization and ploidy alteration for introducing quality and adaptive traits during the development of new varieties. Recent technological advances have supported investigations into the mechanism of flower development, as well as cold tolerance and pathogen resistance mechanisms in the Rhododendron. However, most of the species have limited adaptability to drought, line-tolerance, pathogen resistance, and high-temperature conditions and this resistance ability present in few species largely remains unexplored. Additionally, the available genetic diversity and genomic information on species, and possibilities for their application in molecular breeding have been summarized. Overall, genomic resource data are scarce in the majority of the members of this genus. Finally, various research gaps such as genetic mapping of quality traits, understanding the molecular mechanism of quality-related traits and genomic assortment in Rhododendron members have been discussed in the future perspective section. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-024-04006-6.
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Affiliation(s)
- Sandeep Rawat
- Sikkim Regional Centre, G. B. Pant National Institute of Himalayan Environment, Pangthang, Gangtok, Sikkim 737101 India
| | - Arun K. Jugran
- Garhwal Regional Centre, G. B. Pant National Institute of Himalayan Environment, Srinagar, Uttarakhand 246174 India
| | - Himanshu Sharma
- National Agri-Food Biotechnology Institute (NABI), Sector-81, SAS Nagar, Mohali, Punjab 140306 India
- Faculty of Applied Sciences and Biotechnology, Shoolini University, Solan, Himachal Pradesh 173229 India
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Ding H, Yang Z, Zai Z, Feng K, Wang L, Yue Y, Yang X. Genome-Wide Analysis of ZAT Gene Family in Osmanthus fragrans and the Function Exploration of OfZAT35 in Cold Stress. PLANTS (BASEL, SWITZERLAND) 2023; 12:2346. [PMID: 37375971 DOI: 10.3390/plants12122346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/04/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023]
Abstract
Osmanthus fragrans is a popular ornamental and odorant plant with high commercial value, but its cultivation and exploitation are limited by low temperature. The ZAT (zinc finger of Arabidopsis thaliana) genes as a subclass of the C2H2-type zinc finger proteins (C2H2-ZFP) family play essential roles in various abiotic stresses. However, their roles in cold stress response in O. fragrans remain unclear. This study identified 38 OfZATs, which could be divided into 5 subgroups based on the phylogenetic tree, with OfZATs in the same subgroup harboring similar gene structures and motif patterns. In addition, 49 segmental and 5 tandem duplication events were detected among OfZAT genes, while some OfZAT genes exhibited specific expression patterns in different tissues. Furthermore, two OfZATs were induced in salt stress and eight OfZATs responded to cold stress. Interestingly, OfZAT35 showed a continuously increasing expression trend under cold stress, while its protein showed nucleus localization with no transcriptional activation activity. Transiently transformed tobacco overexpressing OfZAT35 exhibited a significantly higher relative electrolyte leakage (REL) level and increased activities of superoxide dismutase (SOD), peroxidase (POD), and Ascorbate peroxidase (APX), while there was significantly decreased activity of catalase (CAT). Moreover, CAT, DREB3, and LEA5, which are associated with cold stress, were dramatically decreased after cold treatment in transiently transformed tobacco, suggesting that overexpression of OfZAT35 negatively regulated cold stress. This study provides a basis for exploring the roles of ZAT genes and contributes to uncovering the mechanism of ZAT-mediated cold stress response in O. fragrans.
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Affiliation(s)
- Huifen Ding
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Zhandong Yang
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Zhouying Zai
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Keyi Feng
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Lianggui Wang
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Yuanzheng Yue
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Xiulian Yang
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
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Sun Q, Ma L, Zhu X. Metabolomics-based exploration the response mechanisms of Saussurea involucrata leaves under different levels of low temperature stress. BMC Genomics 2023; 24:297. [PMID: 37264318 DOI: 10.1186/s12864-023-09376-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 05/13/2023] [Indexed: 06/03/2023] Open
Abstract
BACKGROUND Saussurea involucrata (Sik.) is alpine plant that have developed special adaptive mechanisms to resist adverse environmental conditions such as low temperature chilling during long-term adaptation and evolution. Exploring the changes of its metabolites under different temperature stresses is helpful to gain insight into its cold stress tolerance. METHODS Ultra-performance liquid chromatography and tandem mass spectrometry were used to analyze the metabolites in the leaves of Sik. under low different temperature stress conditions. RESULTS A total of 753 metabolites were identified, and 360 different metabolites were identified according to the Kyoto Encyclopedia of Genes and Genomes (KEGG) involved in the biosynthesis of secondary metabolites and amino acids and sugars. Sucrose and trehalose synthesis, glycolysis, tricarboxylic acid cycle, pentose phosphate pathway, glutamic acid-mediated proline biosynthesis, purine metabolism, amino acid metabolism, phenylpropane synthesis pathway metabolites all respond to low temperature stress. Under cold stress conditions, carbohydrates in Sik. leaves accumulate first than under freezing conditions, and the lower the temperature under freezing conditions, the less amino acids accumulate, while the phenolic substances increase. The expression of various substances in LPE and LPC increased more than 10-fold after low temperature stress compared with the control, but the content of LPE and LPC substances decreased after cold adaptation. In addition, purines and phenolics decreased and amino acids accumulated significantly under freezing conditions. CONCLUSION The metabolic network of Sik. leaves under different low temperature stress conditions was proposed, which provided a reference for further exploration of the metabolic mechanism related to low temperature stress tolerance of Sik.
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Affiliation(s)
- Qi Sun
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi, 832003, China
| | - Lihua Ma
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi, 832003, China
| | - Xinxia Zhu
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi, 832003, China.
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Riyazuddin R, Nisha N, Singh K, Verma R, Gupta R. Involvement of dehydrin proteins in mitigating the negative effects of drought stress in plants. PLANT CELL REPORTS 2022; 41:519-533. [PMID: 34057589 DOI: 10.1007/s00299-021-02720-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 05/20/2021] [Indexed: 06/12/2023]
Abstract
Drought stress-induced crop loss has been considerably increased in recent years because of global warming and changing rainfall pattern. Natural drought-tolerant plants entail the recruitment of a variety of metabolites and low molecular weight proteins to negate the detrimental effects of drought stress. Dehydrin (DHN) proteins are one such class of proteins that accumulate in plants during drought and associated stress conditions. These proteins are highly hydrophilic and perform multifaceted roles in the protection of plant cells during drought stress conditions. Evidence gathered over the years suggests that DHN proteins impart drought stress tolerance by enhancing the water retention capacity, elevating chlorophyll content, maintaining photosynthetic machinery, activating ROS detoxification, and promoting the accumulation of compatible solutes, among others. Overexpression studies have indicated that these proteins can be effectively targeted to mitigate the negative effects of drought stress and for the development of drought stress-tolerant crops to feed the ever-growing population in the near future. In this review, we describe the mechanism of DHNs mediated drought stress tolerance in plants and their interaction with several phytohormones to provide an in-depth understanding of DHNs function.
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Affiliation(s)
- Riyazuddin Riyazuddin
- Department of Plant Biology, Faculty of Science and Informatics, University of Szeged, Közép fasor 52, 6726, Szeged, Hungary
- Doctoral School in Biology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Nisha Nisha
- Department of Integrated Plant Protection, Faculty of Horticultural Sciences, Szent István University, Gödöllő, Hungary
| | - Kalpita Singh
- School of Biotechnology, Gautam Buddha University, Greater Noida, Uttar Pradesh, 201312, India
| | - Radhika Verma
- Department of Biotechnology, Visva-Bharati Central University, Santiniketan, West Bengal, 731235, India
| | - Ravi Gupta
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, Hamdard Nagar, New Delhi, 110062, India.
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Neshat M, Abbasi A, Hosseinzadeh A, Sarikhani MR, Dadashi Chavan D, Rasoulnia A. Plant growth promoting bacteria (PGPR) induce antioxidant tolerance against salinity stress through biochemical and physiological mechanisms. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2022; 28:347-361. [PMID: 35400886 PMCID: PMC8943118 DOI: 10.1007/s12298-022-01128-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/12/2021] [Accepted: 01/07/2022] [Indexed: 05/13/2023]
Abstract
Salinity is one of the most severe abiotic stress in the world. Also, the irrigated lands have been treated with second salinity. Canola is one of the most important industrial crops for oil production all over the world which is affected by salinity. Salt stress causes imbalanced ion hemostasis (Na+ and K+) and interrupted mineral absorption in canola. Also, salinity stress leads to oxidative stress (production and accumulation of reactive oxygen species (ROS). Accumulation of ROS is extremely dangerous and lethal for plants. As a consequence, canola production is reduced under salinity stress. So, a suitable approach should be found to deal with salinity stress and prevent the loss of production oilseed. Plant growth-promoting rhizobacteria (PGPR) can colonize on the plant root surface and alleviate the salt stress effect by providing minerals like nitrogen, phosphate, and potassium. Also, they alleviate salt stress by phytohormones like auxin (IAA), cytokinin (CK), and abscisic acid (ABA). This study focus on physiological parameters like leaf area (LA), root length (RL), shoot length (SL), chlorophyll fluorescence indexes (Fv/Fm and Fv/F0), relative water content (RWC), electrolyte leakage index (ELI), photosynthesis pigments (chlorophyll a, b, and carotenoids), Na+, and K+; and biochemical parameters like malondialdehyde (MDA) content, hydrogen peroxide content (H2O2), total protein content, proline, antioxidant capacity, and antioxidant enzyme activities in canola through the inoculation with Enterobacter sp. S16-3 and Pseudomonas sp. C16-2O. This study showed that LA, RL, SL, chlorophyll fluorescence indexes, RWC were significantly increased and ELI was significantly decreased in bacteria inoculated treatments. Also, MDA, H2O2 were decreased, and antioxidant capacity, proline, and antioxidant enzymes were increased due to inoculation with these bacteria. Besides, the amount of K+ as an index of salinity tolerance significantly increased, and leaf Na+ content was significantly decreased.
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Affiliation(s)
- Mohammadreza Neshat
- Agronomy and Plant Breeding Department, College of Agriculture and Natural Resources, University of Tehran, P.O. Box: 31587-11167, Karaj, Iran
| | - Alireza Abbasi
- Agronomy and Plant Breeding Department, College of Agriculture and Natural Resources, University of Tehran, P.O. Box: 31587-11167, Karaj, Iran
| | - Abdulhadi Hosseinzadeh
- Agronomy and Plant Breeding Department, College of Agriculture and Natural Resources, University of Tehran, P.O. Box: 31587-11167, Karaj, Iran
| | - Mohammad Reza Sarikhani
- Soil Science Department, Faculty of Agriculture, University of Tabriz, 29 Bahman Blvd, P.O. Box 51666-16471, Tabriz, Iran
| | - Davood Dadashi Chavan
- Plant Biotechnology and Breeding Department, Faculty of Agriculture, University of Tabriz, 29 Bahman Blvd, P.O. Box 51666-16471, Tabriz, Iran
| | - Abdolrahman Rasoulnia
- Agronomy and Plant Breeding Department, College of Agriculture and Natural Resources, University of Tehran, P.O. Box: 31587-11167, Karaj, Iran
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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: 26] [Impact Index Per Article: 8.7] [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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Saussurea involucrata (Snow Lotus) ICE1 and ICE2 Orthologues Involved in Regulating Cold Stress Tolerance in Transgenic Arabidopsis. Int J Mol Sci 2021; 22:ijms221910850. [PMID: 34639192 PMCID: PMC8509503 DOI: 10.3390/ijms221910850] [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: 08/27/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 12/12/2022] Open
Abstract
As with other environmental stresses, cold stress limits plant growth, geographical distribution, and agricultural productivity. CBF/DREB (CRT-binding factors/DRE-binding proteins) regulate tolerance to cold/freezing stress across plant species. ICE (inducer of CBF expression) is regarded as the upstream inducer of CBF expression and plays a crucial role as a main regulator of cold acclimation. Snow lotus (Saussurea involucrata) is a well-known traditional Chinese herb. This herb is known to have greater tolerance to cold/freezing stress compared to other plants. According to transcriptome datasets, two putative ICE homologous genes, SiICE1 and SiICE2, were identified in snow lotus. The predicted SiICE1 cDNA contains an ORF of 1506 bp, encoding a protein of 501 amino acids, whereas SiICE2 cDNA has an ORF of 1482 bp, coding for a protein of 493 amino acids. Sequence alignment and structure analysis show SiICE1 and SiICE2 possess a S-rich motif at the N-terminal region, while the conserved ZIP-bHLH domain and ACT domain are at the C-terminus. Both SiICE1 and SiICE2 transcripts were cold-inducible. Subcellular localization and yeast one-hybrid assays revealed that SiICE1 and SiICE2 are transcriptional regulators. Overexpression of SiICE1 (35S::SiICE1) and SiICE2 (35S::SiICE2) in transgenic Arabidopsis increased the cold tolerance. In addition, the expression patterns of downstream stress-related genes, CBF1, CBF2, CBF3, COR15A, COR47, and KIN1, were up-regulated when compared to the wild type. These results thus provide evidence that SiICE1 and SiICE2 function in cold acclimation and this cold/freezing tolerance may be regulated through a CBF-controlling pathway.
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Mu J, Fu Y, Liu B, Zhang Y, Wang A, Li Y, Zhu J. SiFBA5, a cold-responsive factor from Saussurea involucrata promotes cold resilience and biomass increase in transgenic tomato plants under cold stress. BMC PLANT BIOLOGY 2021; 21:75. [PMID: 33541285 PMCID: PMC7863501 DOI: 10.1186/s12870-021-02851-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 01/24/2021] [Indexed: 05/13/2023]
Abstract
BACKGROUND Saussurea involucrata survives in extreme arctic conditions and is very cold-resistant. This species grows in rocky, mountainous areas with elevations of 2400-4100 m, which are snow-covered year-round and are subject to freezing temperatures. S. involucrata's ability to survive in an extreme low-temperature environment suggests that it has particularly high photosynthetic efficiency, providing a magnificent model, and rich gene pool, for the analysis of plant cold stress response. Fructose-1, 6-bisphosphate aldolase (FBA) is a key enzyme in the photosynthesis process and also mediates the conversion of fructose 1, 6-bisphosphate (FBP) into dihydroxyacetone phosphate (DHAP) and glycerol triphosphate (GAP) during glycolysis and gluconeogenesis. The molecular mechanisms underlying S. involucrata's cold tolerance are still unclear; therefore, our work aims to investigate the role of FBA in plant cold-stress response. RESULTS In this study, we identified a cold-responsive gene, SiFBA5, based on a preliminary low-temperature, genome-wide transcriptional profiling of S. involucrata. Expression analysis indicated that cold temperatures rapidly induced transcriptional expression of SiFBA5, suggesting that SiFBA5 participates in the initial stress response. Subcellular localization analysis revealed that SiFBA5 is localized to the chloroplast. Transgenic tomato plants that overexpressed SiFBA5 were generated using a CaMV 35S promoter. Phenotypic observation suggested that the transgenic plants displayed increased cold tolerance and photosynthetic efficiency in comparison with wild-type plants. CONCLUSION Cold stress has a detrimental impact on crop yield. Our results demonstrated that SiFBA5 positively regulates plant response to cold stress, which is of great significance for increasing crop yield under cold stress conditions.
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Affiliation(s)
- Jianqiang Mu
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi, Xinjiang, 832003, China
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Yajuan Fu
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Bucang Liu
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Yao Zhang
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Aiying Wang
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Yuxia Li
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Jianbo Zhu
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi, Xinjiang, 832003, China.
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Tiwari P, Chakrabarty D. Dehydrin in the past four decades: From chaperones to transcription co-regulators in regulating abiotic stress response. CURRENT RESEARCH IN BIOTECHNOLOGY 2021. [DOI: 10.1016/j.crbiot.2021.07.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Cui H, Wang Y, Yu T, Chen S, Chen Y, Lu C. Heterologous Expression of Three Ammopiptanthus mongolicus Dehydrin Genes Confers Abiotic Stress Tolerance in Arabidopsis thaliana. PLANTS (BASEL, SWITZERLAND) 2020; 9:plants9020193. [PMID: 32033313 PMCID: PMC7076708 DOI: 10.3390/plants9020193] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 01/17/2020] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
Ammopiptanthus mongolicus, a xerophyte plant that belongs to the family Leguminosae, adapts to extremely arid, hot, and cold environments, making it an excellent woody plant to study the molecular mechanisms underlying abiotic stress tolerance. Three dehydrin genes, AmDHN132, AmDHN154, and AmDHN200 were cloned from abiotic stress treated A. mongolicus seedlings. Cytomembrane-located AmDHN200, nucleus-located AmDHN154, and cytoplasm and nucleus-located AmDHN132 were characterized by constitutive overexpression of their genes in Arabidopsis thaliana. Overexpression of AmDHN132, AmDHN154, and AmDHN200 in transgenic Arabidopsis improved salt, osmotic, and cold tolerances, with AmDHN132 having the largest effect, whereas the growth of transformed plants is not negatively affected. These results indicate that AmDHNs contribute to the abiotic stress tolerance of A. mongolicus and that AmDHN genes function differently in response to abiotic stresses. Furthermore, they have the potential to be used in the genetic engineering of stress tolerance in higher plants.
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Affiliation(s)
- Hongwei Cui
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Yang Wang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Tingqiao Yu
- College of Life Science, Pecking University, Beijing 100083, China
| | - Shaoliang Chen
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Yuzhen Chen
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Cunfu Lu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
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Guo X, Zhang L, Dong G, Xu Z, Li G, Liu N, Wang A, Zhu J. A novel cold-regulated protein isolated from Saussurea involucrata confers cold and drought tolerance in transgenic tobacco (Nicotiana tabacum). PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 289:110246. [PMID: 31623784 DOI: 10.1016/j.plantsci.2019.110246] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 08/29/2019] [Accepted: 08/30/2019] [Indexed: 05/08/2023]
Abstract
Adverse environmental conditions, such as cold and drought, can inhibit plant growth, development, and productivity. The isolation and characterization of stress response genes from stress-tolerant plants can provide a better understanding of the underlying adaptive mechanisms. In this study, a novel cold-regulated gene, SikCOR413PM1, was isolated from Saussurea involucrata Kar. et Kir., which is a plant that survives at the high altitudes and in the low temperatures of alpine slopes in northwestern China. SikCOR413PM1 was induced in response to cold and drought in S. involucrata, and phylogenetic analysis revealed that the gene groups with a COR gene encoding a COR413PM protein family member. Subcellular localization of a SikCOR413PM1-green fluorescent fusion protein showed that SikCOR413PM1 was localized to the plasma membrane. A transgenic tobacco (Nicotiana tabacum) system was employed to investigate the possible role of SikCOR413PM1 in cold and drought tolerance. Analyses of growth, germination and survival rates, relative water content, malondialdehyde content, relative electrolyte leakage, and maximal photochemical efficiency of photosystem II showed that transgenic tobacco plants expressing SikCOR413PM1 were more tolerant to cold and drought stresses than WT plants. SikCOR413PM1 overexpression was also accompanied by constitutive activation of NtDREB1 and NtDREB3, two cold-responsive transcription factor genes, and NtERD10A and NtERD10B, two cold-induced genes. The expression levels of downstream transcription factor genes NtDREB3, NtERD10C, NtERD10D, and NtLEA5 were also induced in SikCOR413PM1-expressing transgenic plants under drought conditions. Our results suggest that the overexpression of SikCOR413PM1 induces changes in tobacco plants, and facilitates enhanced tolerance to cold and drought stresses.
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Affiliation(s)
- Xinyong Guo
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi 832000, China
| | - Li Zhang
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi 832000, China
| | - Gaoquan Dong
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi 832000, China
| | - Zhihua Xu
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi 832000, China
| | - Guiming Li
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi 832000, China
| | - Ning Liu
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi 832000, China
| | - Aiying Wang
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi 832000, China
| | - Jianbo Zhu
- Key Laboratory of Agricultural Biotechnology, College of Life Science, Shihezi University, Shihezi 832000, China.
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12
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Wang MQ, Zeng QH, Huang QX, Lin P, Li Y, Liu QL, Zhang L. Transcriptomic Analysis of Verbena bonariensis Leaves Under Low-Temperature Stress. DNA Cell Biol 2019; 38:1233-1248. [PMID: 31532241 DOI: 10.1089/dna.2019.4707] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Verbena bonariensis is a valuable plant for both ornament and flower border. As a major constraint, low temperature affects the growing development and survival of V. bonariensis. However, there are few systematic studies in terms of molecular mechanism on the tolerance of low temperature in V. bonariensis. In this study, Illumina sequencing technology was applied to analyze the cold resistance mechanism of plants. Six cDNA libraries were obtained from two samples of two groups, the cold-treated group and the control group. A total of 271,920 unigenes were produced from 406,641 assembled transcripts. Among these, 19,003 differentially expressed genes (DEGs) (corrected p-value <0.01, |log2(fold change) | >3) were obtained, including 9852 upregulated and 9151 downregulated genes. The antioxidant enzyme system, photosynthesis, plant hormone signal transduction, fatty acid metabolism, starch and sucrose metabolism pathway, and transcription factors were analyzed. Based on these results, series of candidate genes related to cold stress were screened out and discussed. The physiological indexes related to response mechanism of low temperature were tested. Eleven upregulated DEGs were validated by Quantitative Real-time PCR. In this study, we provided the transcriptome sequence resource of V. bonariensis and used these data to realize its molecular mechanism under cold stress. The results contributed to valuable clues for genetic studies and helped to screen candidate genes for cold-resistance breeding.
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Affiliation(s)
- Meng-Qi Wang
- Department of Ornamental Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Qin-Han Zeng
- Department of Ornamental Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Qiu-Xiang Huang
- Department of Ornamental Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Ping Lin
- Department of Ornamental Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Yan Li
- The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering and College of Life Sciences, Guizhou University, Guiyang, China
| | - Qing-Lin Liu
- Department of Ornamental Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Lei Zhang
- Department of Ornamental Horticulture, Sichuan Agricultural University, Chengdu, China
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Ding Y, Shi Y, Yang S. Advances and challenges in uncovering cold tolerance regulatory mechanisms in plants. THE NEW PHYTOLOGIST 2019; 222:1690-1704. [PMID: 30664232 DOI: 10.1111/nph.15696] [Citation(s) in RCA: 374] [Impact Index Per Article: 74.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 01/15/2019] [Indexed: 05/18/2023]
Abstract
Contents Summary I. Introduction II. Cold stress and physiological responses in plants III. Sensing of cold signals in plants IV. Messenger molecules involved in cold signal transduction V. Cold signal transduction in plants VI. Conclusions and perspectives Acknowledgements References SUMMARY: Cold stress is a major environmental factor that seriously affects plant growth and development, and influences crop productivity. Plants have evolved a series of mechanisms that allow them to adapt to cold stress at both the physiological and molecular levels. Over the past two decades, much progress has been made in identifying crucial components involved in cold-stress tolerance and dissecting their regulatory mechanisms. In this review, we summarize recent major advances in our understanding of cold signalling and put forward open questions in the field of plant cold-stress responses. Answering these questions should help elucidate the molecular mechanisms underlying plant tolerance to cold stress.
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Affiliation(s)
- Yanglin Ding
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yiting Shi
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuhua Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
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14
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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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15
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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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16
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New Saussurea (Asteraceae) species from Bogeda Mountain, eastern Tianshan, China, and inference of its evolutionary history and medical usage. PLoS One 2018; 13:e0199416. [PMID: 30020935 PMCID: PMC6051572 DOI: 10.1371/journal.pone.0199416] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 06/06/2018] [Indexed: 11/24/2022] Open
Abstract
In this study, Saussurea bogedaensis Yu-J. Wang & Jie Chen, a new species from Bogeda Mountain in the eastern part of the Tianshan Mountains, is described and discussed based on evidence in terms of both morphological and genetic data. S. bogedaensis is morphologically similar to S. involucrata, which is distributed in the western part of the Tianshan Mountains, and it is well known because of its beauty, rarity, and medicinal value. The new species is also similar to S. orgaadayi, which is distributed in the nearby Altai Mountains. Our genetic data support the close relationships among these three species. According to their allopathic distributions, we suggest that these three species are derived from the same ancestor but that they differentiated after reaching their current range. In addition, we propose that the new species might serve as an alternative to S. involucrata in medicine due to their very high similarity. However, this species appears to be rare because we only found six mature individuals in the field despite extensive investigations.
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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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18
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Wei S, Yang W, Wang X, Hou Y. High genetic diversity in an endangered medicinal plant, Saussurea involucrata (Saussurea, Asteraceae), in western Tianshan Mountains, China. CONSERV GENET 2017. [DOI: 10.1007/s10592-017-0991-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Li J, Liu H, Xia W, Mu J, Feng Y, Liu R, Yan P, Wang A, Lin Z, Guo Y, Zhu J, Chen X. De Novo Transcriptome Sequencing and the Hypothetical Cold Response Mode of Saussurea involucrata in Extreme Cold Environments. Int J Mol Sci 2017; 18:E1155. [PMID: 28590406 PMCID: PMC5485979 DOI: 10.3390/ijms18061155] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/18/2017] [Accepted: 05/23/2017] [Indexed: 11/16/2022] Open
Abstract
Saussurea involucrata grows in high mountain areas covered by snow throughout the year. The temperature of this habitat can change drastically in one day. To gain a better understanding of the cold response signaling pathways and molecular metabolic reactions involved in cold stress tolerance, genome-wide transcriptional analyses were performed using RNA-Seq technologies. A total of 199,758 transcripts were assembled, producing 138,540 unigenes with 46.8 Gb clean data. Overall, 184,416 (92.32%) transcripts were successfully annotated. The 365 transcription factors identified (292 unigenes) belonged to 49 transcription factor families associated with cold stress responses. A total of 343 transcripts on the signal transduction (132 upregulated and 212 downregulated in at least any one of the conditions) were strongly affected by cold temperature, such as the CBL-interacting serine/threonine-protein kinase (CIPKs), receptor-like protein kinases, and protein kinases. The circadian rhythm pathway was activated by cold adaptation, which was necessary to endure the severe temperature changes within a day. There were 346 differentially expressed genes (DEGs) related to transport, of which 138 were upregulated and 22 were downregulated in at least any one of the conditions. Under cold stress conditions, transcriptional regulation, molecular transport, and signal transduction were involved in the adaptation to low temperature in S. involucrata. These findings contribute to our understanding of the adaptation of plants to harsh environments and the survival traits of S. involucrata. In addition, the present study provides insight into the molecular mechanisms of chilling and freezing tolerance.
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Affiliation(s)
- Jin Li
- College of Life Sciences, Shihezi University, Shihezi 832000, China.
| | - Hailiang Liu
- Department of Regenerative Medicine, Tongji University School of Medicine, Shanghai 200065, China.
| | - Wenwen Xia
- College of Life Sciences, Shihezi University, Shihezi 832000, China.
| | - Jianqiang Mu
- College of Life Sciences, Shihezi University, Shihezi 832000, China.
| | - Yujie Feng
- College of Life Sciences, Shihezi University, Shihezi 832000, China.
| | - Ruina Liu
- College of Life Sciences, Shihezi University, Shihezi 832000, China.
| | - Panyao Yan
- ShengTing Bioinformatics Institute, Christiansburg, VA 24073, USA.
| | - Aiying Wang
- College of Life Sciences, Shihezi University, Shihezi 832000, China.
| | - Zhongping Lin
- College of Life Sciences, Shihezi University, Shihezi 832000, China.
- College of Life Sciences, Perking University, Beijing 100871, China.
| | - Yong Guo
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Jianbo Zhu
- College of Life Sciences, Shihezi University, Shihezi 832000, China.
| | - Xianfeng Chen
- College of Life Sciences, Shihezi University, Shihezi 832000, China.
- ShengTing Bioinformatics Institute, Christiansburg, VA 24073, USA.
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20
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Bao F, Du D, An Y, Yang W, Wang J, Cheng T, Zhang Q. Overexpression of Prunus mume Dehydrin Genes in Tobacco Enhances Tolerance to Cold and Drought. FRONTIERS IN PLANT SCIENCE 2017; 8:151. [PMID: 28224001 PMCID: PMC5293821 DOI: 10.3389/fpls.2017.00151] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/25/2017] [Indexed: 05/02/2023]
Abstract
Dehydrins, known as group 2 or D-11 family late-embryogenesis-abundant (LEA) proteins, play important roles in plant growth and stress tolerance. Six dehydrin genes were previously identified from the genome of Prunus mume. In this study, five of them (PmLEA8, PmLEA10, PmLEA19, PmLEA20, and PmLEA29) were cloned from cold-resistant P. mume 'Beijingyudie'. Real-time RT-PCR analysis indicated that all these genes could be up-regulated by one or several treatments (ABA, SA, low temperature, high temperature, PEG, and NaCl treatments). The results of spot assay demonstrated that the expression of all these dehydrins, except PmLEA8, conferred improved osmotic and freezing-resistance to the recombinant Escherichia coli. So four dehydrin genes, PmLEA10, PmLEA19, PmLEA20 and PmLEA29 were chosen for individual over-expression in tobacco plants. The transgenic tobacco plants showed lower relative content of malondialdehyde, relative electrolyte leakage and higher relative content of water than control plants when exposed to cold and drought stress. These results demonstrated that PmLEAs were involved in plant responses to cold and drought.
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21
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Chen RG, Jing H, Guo WL, Wang SB, Ma F, Pan BG, Gong ZH. Silencing of dehydrin CaDHN1 diminishes tolerance to multiple abiotic stresses in Capsicum annuum L. PLANT CELL REPORTS 2015; 34:2189-200. [PMID: 26408144 DOI: 10.1007/s00299-015-1862-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 08/31/2015] [Indexed: 05/28/2023]
Abstract
We cloned a dehydrins gene CaDHN1 from pepper and the expression of CaDHN1 was markedly upregulated by cold, salt, osmotic stresses and salicylic acid (SA) treatment. Dehydrins (DHNs) are a subfamily of group 2 late embryogenesis-abundant (LEA) proteins that are thought to play an important role in enhancing abiotic stress tolerance in plants. In this study, a DHN EST (Expressed Sequence Tag) was obtained from 6 to 8 true leaves seedlings of pepper cv P70 (Capsicum annuum L.) by our laboratory. However, the DHN gene in pepper was not well characterized. According to this EST sequence, we isolated a DHN gene, designated as CaDHN1, and investigated the response and expression of this gene under various stresses. Our results indicated that CaDHN1 has the DHN-specific and conserved K- and S- domain and encodes 219 amino acids. Phylogenetic analysis showed that CaDHN1 belonged to the SKn subgroup. Tissue expression profile analysis revealed that CaDH N1 was expressed predominantly in fruits and flowers. The expression of CaDHN1 was markedly upregulated in response to cold, salt, osmotic stresses and salicylic acid (SA) treatment, but no significant change by abscisic acid (ABA) and heavy metals treatment. Loss of function of CaDHN1 using the virus-induced gene silencing (VIGS) technique led to decreased tolerance to cold-, salt- and osmotic-induced stresses. Overall, these results suggest that CaDHN1 plays an important role in regulating the abiotic stress resistance in pepper plants.
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Affiliation(s)
- Ru-gang Chen
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Hua Jing
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Wei-li Guo
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
- School of Horticulture Landscape Architecture, Henan Institute of Science and Technology, Xinxiang, Henan, China
| | - Shu-Bin Wang
- Institute of Vegetable Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, 210014, China
| | - Fang Ma
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Bao-Gui Pan
- Institute of Vegetable Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, 210014, China
| | - Zhen-Hui Gong
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China.
- Institute of Vegetable Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, 210014, China.
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22
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Yu HQ, Yong TM, Li HJ, Liu YP, Zhou SF, Fu FL, Li WC. Overexpression of a phospholipase Dα gene from Ammopiptanthus nanus enhances salt tolerance of phospholipase Dα1-deficient Arabidopsis mutant. PLANTA 2015; 242:1495-509. [PMID: 26318308 DOI: 10.1007/s00425-015-2390-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 08/21/2015] [Indexed: 05/28/2023]
Abstract
A phospholipase Dα gene ( AnPLDα ) was cloned from xerophytic desert plant Ammopiptanthus nanus and its overexpression enhanced salt tolerance of a PLDα1 deficient Arabidopsis mutant. Phospholipase Dα (PLDα) hydrolyzes phosphatidylcholine to produce phosphatidic acid, and plays crucial role in plant tolerance to abiotic stress. In this study, a phospholipase Dα gene (AnPLDα) was cloned from xerophyte Ammopiptanthus nanus by the methods of homologous cloning and rapid amplification of cDNA ends, and evaluated for its function in stress tolerance. The full-length cDNA was 2832 bp long, containing an open reading frame of 2427 bp that encodes 808 amino acids. The putative protein was predicted to be localized to the cytoplasm and this was confirmed by transient expression of a fluorescent fusion protein. The endogenous expression of the AnPLDα gene was induced by high salt, dehydration, cold and abscisic acid. The heterologous expression of the AnPLDα gene improved salt tolerance of an Arabidopsis pldα1 knocked out mutant, and positively regulated the expression of the AtABI, AtNCED, AtRD29A, AtRD29B and AtADH genes. Therefore, the AnPLDα gene was concluded to be involved in response to abiotic stress. The AnPLDα gene is a hopeful candidate for transgenic application to improve stress tolerance of commercial crops.
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Affiliation(s)
- Hao Qiang Yu
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
| | - Tai Ming Yong
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
| | - Hong Jie Li
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
| | - Yan Ping Liu
- Faculty of Plant Science, Tarim University, Alar, 843300, Xinjiang, People's Republic of China
| | - Shu Feng Zhou
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
| | - Feng Ling Fu
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China.
| | - Wan Chen Li
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China.
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He X, Chen Z, Wang J, Li W, Zhao J, Wu J, Wang Z, Chen X. A sucrose:fructan-6-fructosyltransferase (6-SFT) gene from Psathyrostachys huashanica confers abiotic stress tolerance in tobacco. Gene 2015; 570:239-47. [PMID: 26072162 DOI: 10.1016/j.gene.2015.06.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 06/06/2015] [Accepted: 06/08/2015] [Indexed: 10/23/2022]
Abstract
Fructans are accessible carbohydrate reserves in various plant species, which possess many physiological functions including anti-oxidation, stabilizing subcellular structures, and osmotic adjustment. In addition, fructans may play important roles in stress tolerance in plant species. In this study, we isolated a Psathyrostachys huashanica (2n=2x=14, NsNs) sucrose:fructan-6-fructosyltransferase (Ph-6-SFT) using homologous cloning and genomic walking. Sequencing and gene structure analysis showed that Ph-6-SFT contains four exons and three introns, with a transcript of 2207 bp. Sequence analysis indicated that the coding sequence of Ph-6-SFT is 1851 bp long and it encodes 616 amino acids, where the structure shares high similarity with 6-SFTs from other plants. Furthermore, Ph-6-SFT was transferred into tobacco (Nicotiana tabacum L.) cv. W38 via Agrobacterium-mediated transformation. Compared with the wild-type plants, the transgenic tobacco plants exhibited a much higher tolerance of drought, cold, and high salinity. In all conditions, physiological studies showed that the tolerance of transgenic plants was associated with the accumulation of carbohydrate and proline, but reductions in malondialdehyde. Our results suggest that the 6-SFT gene from P. huashanica enhanced stress tolerance in tobacco plants and it may be applied as a genetic tool for improving stress tolerance in other crops.
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Affiliation(s)
- Xiaolan He
- College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China; Shaanxi Key Laboratory of Genetic Engineering for Plant Breeding, China
| | - Zhenzhen Chen
- College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jianwei Wang
- College of Environment and Life Science, Kaili University, Kaili 556011, GuiZhou, China
| | - Wenxu Li
- Institute for Wheat Research, Henan Academy of Agricultural Sciences, Zhengzhou 450002, Henan, China
| | - Jixin Zhao
- College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jun Wu
- College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Zhonghua Wang
- College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xinhong Chen
- College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China; Shaanxi Key Laboratory of Genetic Engineering for Plant Breeding, China.
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