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Hou L, Wu Q, Zhu X, Li X, Fan X, Hui M, Ye Q, Liu G, Liu X. Transcription Factor VvDREB2A from Vitis vinifera Improves Cold Tolerance. Int J Mol Sci 2023; 24:ijms24119381. [PMID: 37298332 DOI: 10.3390/ijms24119381] [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: 04/10/2023] [Revised: 05/15/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
Low temperatures restrict the growth of the grapevine industry. The DREB transcription factors are involved in the abiotic stress response. Here, we isolated the VvDREB2A gene from Vitis vinifera cultivar 'Zuoyouhong' tissue culture seedlings. The full-length VvDREB2A cDNA was 1068 bp, encoding 355 amino acids, which contained an AP2 conserved domain belonging to the AP2 family. Using transient expression in leaves of tobacco, VvDREB2A was localized to the nucleus, and it potentiated transcriptional activity in yeasts. Expression analysis revealed that VvDREB2A was expressed in various grapevine tissues, with the highest expression in leaves. VvDREB2A was induced by cold and the stress-signaling molecules H2S, nitric oxide, and abscisic acid. Furthermore, VvDREB2A-overexpressing Arabidopsis was generated to analyze its function. Under cold stress, the Arabidopsis overexpressing lines exhibited better growth and higher survival rates than the wild type. The content of oxygen free radicals, hydrogen peroxide, and malondialdehyde decreased, and antioxidant enzyme activities were enhanced. The content of raffinose family oligosaccharides (RFO) also increased in the VvDREB2A-overexpressing lines. Moreover, the expression of cold stress-related genes (COR15A, COR27, COR6.6, and RD29A) was also enhanced. Taken together, as a transcription factor, VvDREB2A improves plants resistance to cold stress by scavenging reactive oxygen species, increasing the RFO amount, and inducing cold stress-related gene expression levels.
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Affiliation(s)
- Lixia Hou
- Key Lab of Plant Biotechnology in University of Shandong Province, College of Life Science, Qingdao Agricultural University, Qingdao 266109, China
| | - Qiqi Wu
- Key Lab of Plant Biotechnology in University of Shandong Province, College of Life Science, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiaomin Zhu
- Key Lab of Plant Biotechnology in University of Shandong Province, College of Life Science, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiangyu Li
- Key Lab of Plant Biotechnology in University of Shandong Province, College of Life Science, Qingdao Agricultural University, Qingdao 266109, China
| | - Xinxin Fan
- Key Lab of Plant Biotechnology in University of Shandong Province, College of Life Science, Qingdao Agricultural University, Qingdao 266109, China
| | - Mengling Hui
- Key Lab of Plant Biotechnology in University of Shandong Province, College of Life Science, Qingdao Agricultural University, Qingdao 266109, China
| | - Qing Ye
- Key Lab of Plant Biotechnology in University of Shandong Province, College of Life Science, Qingdao Agricultural University, Qingdao 266109, China
| | - Guangchao Liu
- Key Lab of Plant Biotechnology in University of Shandong Province, College of Life Science, Qingdao Agricultural University, Qingdao 266109, China
| | - Xin Liu
- Key Lab of Plant Biotechnology in University of Shandong Province, College of Life Science, Qingdao Agricultural University, Qingdao 266109, China
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Chaudhari RS, Jangale BL, Krishna B, Sane PV. Improved abiotic stress tolerance in Arabidopsis by constitutive active form of a banana DREB2 type transcription factor, MaDREB20.CA, than its native form, MaDREB20. PROTOPLASMA 2023; 260:671-690. [PMID: 35996008 DOI: 10.1007/s00709-022-01805-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Banana is grown as one of the important fruit crops in tropical and subtropical regions of the world. In this study, we report induced expression of a dehydration responsive element binding 2 (DREB2) gene (MaDREB20) under individual heat, drought, and combined drought and heat stress in root of two banana genotypes Grand Nain (GN) and Hill Banana (HB). Motif analysis of MaDREB20 protein demonstrated the presence of a negative regulatory domain (NRD) or PEST motif between 150 and 184 amino acids. Transgenic Arabidopsis overexpressing MaDREB20 gene showed more survival rate, above-ground biomass, seed yield, leaf relative water content, and proline content but less ion leakage and malonaldehyde content, revealing improved tolerance against heat and drought as well as their combination than the wild-type. Overexpression of MaDREB20.CA (constitutive active form of MaDREB20 after removal of PEST region) showed better abiotic stress tolerance in Arabidopsis than its native form (MaDREB20). Transgenic Arabidopsis overexpressing MaDREB20 and MaDREB20.CA genes appeared to be associated with reduced stomatal densities under normal condition, better regulation of stomatal aperture under drought than in wild-type plants, and differential regulation of downstream target (AtTCH4 and AtIAA1) genes under heat, drought, and combined stress. Taken together, our findings revealed important functions of MaDREB20 in abiotic stress responses in transgenic Arabidopsis and could form a basis for CRISPR/Cas9-mediated removal of its NRD to enhance stress tolerance in banana.
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Affiliation(s)
- Rakesh Shashikant Chaudhari
- Jain R&D lab is a Recognized Research Centre by Kavayitri Bahinabai Chaudhari North Maharashtra University, Bambhori, Jalgaon, 425001, India
| | - Bhavesh Liladhar Jangale
- Jain R&D lab is a Recognized Research Centre by Kavayitri Bahinabai Chaudhari North Maharashtra University, Bambhori, Jalgaon, 425001, India
| | - Bal Krishna
- Jain R&D lab is a Recognized Research Centre by Kavayitri Bahinabai Chaudhari North Maharashtra University, Bambhori, Jalgaon, 425001, India.
| | - Prafullachandra Vishnu Sane
- Jain R&D lab is a Recognized Research Centre by Kavayitri Bahinabai Chaudhari North Maharashtra University, Bambhori, Jalgaon, 425001, India
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Kapazoglou A, Gerakari M, Lazaridi E, Kleftogianni K, Sarri E, Tani E, Bebeli PJ. Crop Wild Relatives: A Valuable Source of Tolerance to Various Abiotic Stresses. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12020328. [PMID: 36679041 PMCID: PMC9861506 DOI: 10.3390/plants12020328] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 05/27/2023]
Abstract
Global climate change is one of the major constraints limiting plant growth, production, and sustainability worldwide. Moreover, breeding efforts in the past years have focused on improving certain favorable crop traits, leading to genetic bottlenecks. The use of crop wild relatives (CWRs) to expand genetic diversity and improve crop adaptability seems to be a promising and sustainable approach for crop improvement in the context of the ongoing climate challenges. In this review, we present the progress that has been achieved towards CWRs exploitation for enhanced resilience against major abiotic stressors (e.g., water deficiency, increased salinity, and extreme temperatures) in crops of high nutritional and economic value, such as tomato, legumes, and several woody perennial crops. The advances in -omics technologies have facilitated the elucidation of the molecular mechanisms that may underlie abiotic stress tolerance. Comparative analyses of whole genome sequencing (WGS) and transcriptomic profiling (RNA-seq) data between crops and their wild relative counterparts have unraveled important information with respect to the molecular basis of tolerance to abiotic stressors. These studies have uncovered genomic regions, specific stress-responsive genes, gene networks, and biochemical pathways associated with resilience to adverse conditions, such as heat, cold, drought, and salinity, and provide useful tools for the development of molecular markers to be used in breeding programs. CWRs constitute a highly valuable resource of genetic diversity, and by exploiting the full potential of this extended allele pool, new traits conferring abiotic-stress tolerance may be introgressed into cultivated varieties leading to superior and resilient genotypes. Future breeding programs may greatly benefit from CWRs utilization for overcoming crop production challenges arising from extreme environmental conditions.
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Affiliation(s)
- Aliki Kapazoglou
- Institute of Olive Tree, Subtropical Crops and Viticulture (IOSV), Department of Vitis, Hellenic Agricultural Organization-Dimitra (ELGO-Dimitra), Sofokli Venizelou 1, Lykovrysi, 14123 Athens, Greece
| | - Maria Gerakari
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Efstathia Lazaridi
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Konstantina Kleftogianni
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Efi Sarri
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Eleni Tani
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Penelope J. Bebeli
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
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Kumar S, Muthuvel J, Sadhukhan A, Kobayashi Y, Koyama H, Sahoo L. Enhanced osmotic adjustment, antioxidant defense, and photosynthesis efficiency under drought and heat stress of transgenic cowpea overexpressing an engineered DREB transcription factor. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 193:1-13. [PMID: 36306675 DOI: 10.1016/j.plaphy.2022.09.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 09/24/2022] [Accepted: 09/25/2022] [Indexed: 06/16/2023]
Abstract
Cowpea is sensitive to drought and heat stress, particularly at the reproductive stages of development. Both stresses limit growth and yield, and their effect is more devastating when occurring concurrently. Dehydration-responsive element-binding protein 2A (DREB2A) is an important signaling hub integrating information about two different abiotic stresses, drought and heat. We identified VuDREB2A as a canonical DREB ortholog in cowpea, activating downstream stress-responsive genes by binding to DREs in their promoter. Post-translational modification of a negative regulatory domain (NRD) within the VuDREB2A protein prevents its degradation. Targeted deletion of the NRD produces a stable and constitutively active form VuDREB2A-CA. However, there is very little evidence of its practical utility under field conditions. This study overexpressed the VuDREB2A-CA in a popular cowpea variety and conducted drought- and heat-tolerance experiments across various stress regimes. Transgenic cowpea exhibited significant tolerance with consistently higher yield when exposed to over 30-d drought stress and 3-d exposure to high temperature (28 °C-52 °C) without any pleiotropic alterations. The transgenic lines showed higher photosynthetic efficiency, osmotic adjustment, antioxidant defense, thermotolerance, and significantly higher survival and increased biomass than the wild type. Late embryogenesis abundant 5, heat shock protein 70, dehydrin, mitogen-activated protein kinase 2/4, isoflavonoid reductase, and myoinositol phosphate synthase were upregulated in transgenic lines under drought and heat stress. Through transcriptome analysis of the transgenic lines, we found significant up-regulation of various stress-responsive cowpea genes, having DRE in their promoter. Our results suggest that overexpression of VuDREB2A could improve cowpea production under drought and high temperatures.
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Affiliation(s)
- Sanjeev Kumar
- Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, India.
| | - J Muthuvel
- Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, India
| | - Ayan Sadhukhan
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Jodhpur, 342030, India
| | - Yuriko Kobayashi
- Faculty of Applied Biological Sciences, Gifu University, 1-1, Yanagido, 501-1193, Gifu, Japan
| | - Hiroyuki Koyama
- Faculty of Applied Biological Sciences, Gifu University, 1-1, Yanagido, 501-1193, Gifu, Japan
| | - Lingaraj Sahoo
- Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, India.
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5
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Mishra S, Sahu G, Shaw BP. Insight into the cellular and physiological regulatory modulations of Class-I TCP9 to enhance drought and salinity stress tolerance in cowpea. PHYSIOLOGIA PLANTARUM 2022; 174:e13542. [PMID: 34459503 DOI: 10.1111/ppl.13542] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/01/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
The Teosinte branched 1/Cycloidea/Proliferating cell factor (TCP) transcription factors are potent growth and developmental regulators in plants, also responsive to various hormonal and environmental stimuli. In this study, we primarily focused on the functional role of TCP9, a nuclear-localised Class-I TCP transcription factor in a drought and heat-tolerant legume crop, cowpea (Vigna unguiculata). Under drought stress, a higher protein expression level of TCP9 was observed in the leaves of the drought-tolerant cowpea cultivar Pusa Komal as compared to the drought-sensitive cultivar TVu-7778. Further, overexpression of VuTCP9 resulted in reduced cell and stomata size, aperture length and width while cell and overall stomatal density in the 35S::VuTCP9 transgenic cowpea lines increased. Phenotypic alterations, such as reduced leaf size and vigour, altered seed coats displaying extension pattern similar to the 'Watson pattern' and delayed senescence were prominent in the transgenic lines. Under normal conditions, the gas exchange and fluorescence measurements indicated reduction in transpiration rate (E), stomatal conductance (gs ) and photosynthetic efficiency (Φ PSII). However, water usage efficiency (WUE) remained unaltered in the transgenic lines as compared to the wild-type (WT) plants. Furthermore, the transgenic lines displayed higher tolerance to oxidative, drought and salinity stress, maintained relatively higher relative water content and lower occurrence of H2 O2 , as compared to the WT plants. Genes related to the jasmonic acid biosynthesis, stomatal development and abiotic stress responsiveness, such as TTG1, NAC25, SPCH and GRP1, increased and LOX2 decreased significantly in the transgenic lines.
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Affiliation(s)
- Sagarika Mishra
- Abiotic Stress and Agro-Biotechnology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Gyanasri Sahu
- Abiotic Stress and Agro-Biotechnology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
- Regional Centre for Biotechnology, Faridabad, Haryana, India
| | - Birendra Prasad Shaw
- Abiotic Stress and Agro-Biotechnology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
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Vu TTH, Le TTC, Pham TL. Growth responses and differential expression of VrDREB2A gene at different growth stages of mungbean ( Vigna radiata L. Wilczek) under drought stress. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:2447-2458. [PMID: 34924703 PMCID: PMC8639898 DOI: 10.1007/s12298-021-01089-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/21/2021] [Accepted: 10/16/2021] [Indexed: 06/14/2023]
Abstract
UNLABELLED Mungbean is an important pulse crop and is predominantly cultivated across Asia. However, its production is hampered by climate change-induced drought stress. Drought affects various morpho-physiological processes associated with growth and molecular functions. This study analyzed growth responses and VrDREB2A gene expression in two mungbean cultivars, DX208 and Tam Thanh Hoa under water deficit at vegetative and flowering stages. Water use and growth characters were evaluated at four time-points (8, 12, 15 and 20-day drought) and 7-day recovery while yield components and yield were recorded after harvesting. Differential expression of VrDREB2A gene was analyzed at four time-points for leaf and root. Plants used up water more quickly at the flowering stage than vegetative stage. The data for plant height, leaf number, above-ground plant biomass and root weight indicated that drought stress significantly repressed mungbean growth, with a reduction relative to the control by 4.0-85%. Yield components and individual yield reduced significantly by 50-60%, with more reduction in drought imposed under the vegetative stage. VrDREB2A expression began to increase on a 12-day drought and was significant in stressed roots on a 20-day drought at the vegetative stage. In contrast, an increase in VrDREB2A expression occurred from 8-day and lasted until a 20-day drought in stressed leave and root at the flowering stage. Overall, the vegetative stage was more sensitive to drought than the flowering stage. A cultivar with less relative reduction in growth and yield related traits and higher VrDREB2A expression was more tolerant to drought. VrDREB2A functioned as an important transcriptional activator and can increase the drought stress tolerance of the mungbean. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-021-01089-w.
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Affiliation(s)
- Thi Thuy Hang Vu
- Faculty of Agronomy, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Thi Tuyet Cham Le
- Faculty of Agronomy, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Thi Ly Pham
- Undergraduate Student of Advanced Crop Science Program, Faculty of Agronomy, Vietnam National University of Agriculture, Hanoi, Vietnam
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An Evolutionary Analysis of B-Box Transcription Factors in Strawberry Reveals the Role of FaBBx28c1 in the Regulation of Flowering Time. Int J Mol Sci 2021; 22:ijms222111766. [PMID: 34769196 PMCID: PMC8583817 DOI: 10.3390/ijms222111766] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/18/2021] [Accepted: 10/20/2021] [Indexed: 11/17/2022] Open
Abstract
Flowering connects vegetative and generative developmental phases and plays a significant role in strawberry production. The mechanisms that regulate strawberry flowering time are unclear. B-box transcription factors (BBXs) play important roles in the flowering time regulation of plants. Nevertheless, BBXs in octoploid cultivated strawberry (Fragaria ananassa) and their functions in flowering time regulation have not been identified. Here, we identified 51 FaBBXs from cultivated strawberry and 16 FvBBXs from diploid wild strawberry (Fragaria vesca), which were classified into five groups according to phylogenetic analysis. Further evolutionary analysis showed that whole-genome duplication or segmental duplication is a crucial factor that leads to the expansion of the BBX gene family in two strawberry species. Moreover, some loss and acquisition events of FaBBX genes were identified in the genome of cultivated strawberry that could have affected traits of agronomic interest, such as fruit quality. The promoters of FaBBX genes showed an enrichment in light-responsive, cis-regulatory elements, with 16 of these genes showing changes in their transcriptional activity in response to blue light treatment. On the other hand, FaBBX28c1, whose transcriptional activity is reduced in response to blue light, showed a delay in flowering time in Arabidopsis transgenic lines, suggesting its role in the regulation of flowering time in cultivated strawberry. Our results provide new evolutionary insight into the BBX gene family in cultivated strawberry and clues regarding their function in flowering time regulation in plants.
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Warsi MK, Howladar SM, Alsharif MA. Regulon: An overview of plant abiotic stress transcriptional regulatory system and role in transgenic plants. BRAZ J BIOL 2021; 83:e245379. [PMID: 34495147 DOI: 10.1590/1519-6984.245379] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 03/16/2021] [Indexed: 11/21/2022] Open
Abstract
Population growth is increasing rapidly around the world, in these consequences we need to produce more foods to full fill the demand of increased population. The world is facing global warming due to urbanizations and industrialization and in this concerns plants exposed continuously to abiotic stresses which is a major cause of crop hammering every year. Abiotic stresses consist of Drought, Salt, Heat, Cold, Oxidative and Metal toxicity which damage the crop yield continuously. Drought and salinity stress severally affected in similar manner to plant and the leading cause of reduction in crop yield. Plants respond to various stimuli under abiotic or biotic stress condition and express certain genes either structural or regulatory genes which maintain the plant integrity. The regulatory genes primarily the transcription factors that exert their activity by binding to certain cis DNA elements and consequently either up regulated or down regulate to target expression. These transcription factors are known as masters regulators because its single transcript regulate more than one gene, in this context the regulon word is fascinating more in compass of transcription factors. Progress has been made to better understand about effect of regulons (AREB/ABF, DREB, MYB, and NAC) under abiotic stresses and a number of regulons reported for stress responsive and used as a better transgenic tool of Arabidopsis and Rice.
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Affiliation(s)
- M K Warsi
- Department of Biochemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - S M Howladar
- Department of Biology, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - M A Alsharif
- Architecture Department, Faculty of Engineering. Albaha University, Albaha, Saudi Arabia
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Chai M, Cheng H, Yan M, Priyadarshani S, Zhang M, He Q, Huang Y, Chen F, Liu L, Huang X, Lai L, Chen H, Cai H, Qin Y. Identification and expression analysis of the DREB transcription factor family in pineapple ( Ananas comosus (L.) Merr.). PeerJ 2020; 8:e9006. [PMID: 32377449 PMCID: PMC7194095 DOI: 10.7717/peerj.9006] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 03/27/2020] [Indexed: 01/05/2023] Open
Abstract
Background Dehydration responsive element-binding (DREB) transcription factors play a crucial role in plant growth, development and stress responses. Although DREB genes have been characterized in many plant species, genome-wide identification of the DREB gene family has not yet been reported in pineapple (Ananas comosus (L.) Merr.). Results Using comprehensive genome-wide screening, we identified 20 AcoDREB genes on 14 chromosomes. These were categorized into five subgroups. AcoDREBs within a group had similar gene structures and domain compositions. Using gene structure analysis, we showed that most AcoDREB genes (75%) lacked introns, and that the promoter regions of all 20 AcoDREB genes had at least one stress response-related cis-element. We identified four genes with high expression levels and six genes with low expression levels in all analyzed tissues. We detected expression changes under abiotic stress for eight selected AcoDREB genes. Conclusions This report presents the first genome-wide analysis of the DREB transcription factor family in pineapple. Our results provide preliminary data for future functional analysis of AcoDREB genes in pineapple, and useful information for developing new pineapple varieties with key agronomic traits such as stress tolerance.
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Affiliation(s)
- Mengnan Chai
- State Key Lab of Ecological Pest Control for Fujian and Taiwan Crops; Key Lab of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education; Fujian Provincial Key Lab of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Han Cheng
- State Key Lab of Ecological Pest Control for Fujian and Taiwan Crops; Key Lab of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education; Fujian Provincial Key Lab of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Maokai Yan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Lab of Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, Guangxi Province, China
| | - Svgn Priyadarshani
- State Key Lab of Ecological Pest Control for Fujian and Taiwan Crops; Key Lab of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education; Fujian Provincial Key Lab of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Man Zhang
- State Key Lab of Ecological Pest Control for Fujian and Taiwan Crops; Key Lab of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education; Fujian Provincial Key Lab of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Qing He
- State Key Lab of Ecological Pest Control for Fujian and Taiwan Crops; Key Lab of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education; Fujian Provincial Key Lab of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Youmei Huang
- State Key Lab of Ecological Pest Control for Fujian and Taiwan Crops; Key Lab of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education; Fujian Provincial Key Lab of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Fangqian Chen
- State Key Lab of Ecological Pest Control for Fujian and Taiwan Crops; Key Lab of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education; Fujian Provincial Key Lab of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Liping Liu
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Xiaoyi Huang
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Linyi Lai
- State Key Lab of Ecological Pest Control for Fujian and Taiwan Crops; Key Lab of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education; Fujian Provincial Key Lab of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Huihuang Chen
- State Key Lab of Ecological Pest Control for Fujian and Taiwan Crops; Key Lab of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education; Fujian Provincial Key Lab of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Hanyang Cai
- State Key Lab of Ecological Pest Control for Fujian and Taiwan Crops; Key Lab of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education; Fujian Provincial Key Lab of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Yuan Qin
- State Key Lab of Ecological Pest Control for Fujian and Taiwan Crops; Key Lab of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education; Fujian Provincial Key Lab of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China.,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Lab of Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, Guangxi Province, China.,College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
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Sadhukhan A, Enomoto T, Kobayashi Y, Watanabe T, Iuchi S, Kobayashi M, Sahoo L, Yamamoto YY, Koyama H. Sensitive to Proton Rhizotoxicity1 Regulates Salt and Drought Tolerance of Arabidopsis thaliana through Transcriptional Regulation of CIPK23. PLANT & CELL PHYSIOLOGY 2019; 60:2113-2126. [PMID: 31241160 DOI: 10.1093/pcp/pcz120] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 06/11/2019] [Indexed: 05/10/2023]
Abstract
The transcription factor sensitive to proton rhizotoxicity 1 (STOP1) regulates multiple stress tolerances. In this study, we confirmed its involvement in NaCl and drought tolerance. The root growth of the T-DNA insertion mutant of STOP1 (stop1) was sensitive to NaCl-containing solidified MS media. Transcriptome analysis of stop1 under NaCl stress revealed that STOP1 regulates several genes related to salt tolerance, including CIPK23. Among all available homozygous T-DNA insertion mutants of the genes suppressed in stop1, only cipk23 showed a NaCl-sensitive root growth phenotype comparable to stop1. The CIPK23 promoter had a functional STOP1-binding site, suggesting a strong CIPK23 suppression led to NaCl sensitivity of stop1. This possibility was supported by in planta complementation of CIPK23 in the stop1 background, which rescued the short root phenotype under NaCl. Both stop1 and cipk23 exhibited a drought tolerant phenotype and increased abscisic acid-regulated stomatal closure, while the complementation of CIPK23 in stop1 reversed these traits. Our findings uncover additional pleiotropic roles of STOP1 mediated by CIPK23, which regulates various ion transporters including those regulating K+-homeostasis, which may induce a trade-off between drought tolerance and other traits.
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Affiliation(s)
- Ayan Sadhukhan
- Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - Takuo Enomoto
- Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - Yuriko Kobayashi
- Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - Toshihiro Watanabe
- Research Faculty of Agriculture, Hokkaido University, Kita-9, Nishi-9, Kitaku, Sapporo, Japan
| | - Satoshi Iuchi
- Experimental Plant Division, RIKEN BioResource Research Center, Tsukuba, Ibaraki, Japan
| | - Masatomo Kobayashi
- Experimental Plant Division, RIKEN BioResource Research Center, Tsukuba, Ibaraki, Japan
| | - Lingaraj Sahoo
- Department of Biosciences and bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Yoshiharu Y Yamamoto
- Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - Hiroyuki Koyama
- Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan
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11
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Daspute AA, Yunxuan X, Gu M, Kobayashi Y, Wagh S, Panche A, Koyama H. Agrobacterium rhizogenes-mediated hairy roots transformation as a tool for exploring aluminum-responsive genes function. Future Sci OA 2019; 5:FSO364. [PMID: 30906565 PMCID: PMC6426172 DOI: 10.4155/fsoa-2018-0065] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 11/21/2018] [Indexed: 11/25/2022] Open
Abstract
AIM To develop a useful alternative approach to evaluate the gene function in hairy roots. METHODS Arabidopsis and tobacco (wild-type or mutant) were a host for Agrobacterium rhizogenes transformation. RESULTS The hairy roots formation efficiency ranged from 53 to 98% in tobacco and 53 to 66% in Arabidopsis. Hairy and intact roots showed similar gene expression pattern in response to salt and aluminum stress. Genomic polymerase chain reaction and fluorescent images showed high rate (>80%) of co-integration of T-DNAs and uniform cell transformation without use of any antibiotic selection. Whole processes of hairy roots were completed within 1 month after the infection of Agrobacterium. CONCLUSION Aluminum-responsive orthologous gene function could be evaluated by NtSTOP1-KD and Atstop1 as a host for hairy roots transformation.
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Affiliation(s)
- Abhijit A Daspute
- Laboratory of Plant Cell Technology, Faculty of Applied Biological Sciences, Gifu University, Gifu 501–1193, Japan
- Institute of Bioscience & Biotechnology, Department of Biological Sciences, MGM College, Aurangabad 411-003, India
| | - Xian Yunxuan
- Laboratory of Plant Cell Technology, Faculty of Applied Biological Sciences, Gifu University, Gifu 501–1193, Japan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, Guangxi Universities, Nanning 530-005, China
| | - Minghua Gu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, Guangxi Universities, Nanning 530-005, China
| | - Yuriko Kobayashi
- Laboratory of Plant Cell Technology, Faculty of Applied Biological Sciences, Gifu University, Gifu 501–1193, Japan
| | - Sopan Wagh
- Institute of Bioscience & Biotechnology, Department of Biological Sciences, MGM College, Aurangabad 411-003, India
| | - Archana Panche
- Institute of Bioscience & Biotechnology, Department of Biological Sciences, MGM College, Aurangabad 411-003, India
| | - Hiroyuki Koyama
- Laboratory of Plant Cell Technology, Faculty of Applied Biological Sciences, Gifu University, Gifu 501–1193, Japan
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12
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Gumi AM, Guha PK, Mazumder A, Jayaswal P, Mondal TK. Characterization of OglDREB2A gene from African rice ( Oryza glaberrima), comparative analysis and its transcriptional regulation under salinity stress. 3 Biotech 2018; 8:91. [PMID: 29430353 PMCID: PMC5796934 DOI: 10.1007/s13205-018-1098-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 01/05/2018] [Indexed: 01/17/2023] Open
Abstract
In this study, AP2 DNA-binding domain-containing transcription factor, OglDREB2A, was cloned from the African rice (Oryza glaberrima) and compared with 3000 rice genotypes. Further, the phylogenetic and various structural analysis was performed using in silico approaches. Further, to understand its allelic variation in rice, SNPs and indels were detected among the 3000 rice genotypes which indicated that while coding region is highly conserved, yet noncoding regions such as UTR and intron contained most of the variation. Phylogenetic analysis of the OglDREB2A sequence in different Oryza as well as in diverse eudicot species revealed that DREB from various Oryza species were diversed much earlier than other genes. Further, structural features and in silico analyses provided insights into different properties of OglDREB2A protein. The neutrality test on the coding region of OglDREB2A from different genotypes of O. glaberrima showed the lack of selection in this gene. Among the different developmental stages, it was upregulated at tillering and flag leaf under salinity treatment indicating its positive role in seedling and reproductive stage tolerance. Real-time PCR analysis also indicated the conserve expression pattern of this gene under salinity stress across the three different Oryza species having different degree of salinity tolerance.
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Affiliation(s)
- Abubakar Mohammad Gumi
- ICAR-National Bureau of Plant Genetic Resources, IARI Campus, Pusa, New Delhi, 110012 India
- Present Address: Department of Biological Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Pritam Kanti Guha
- ICAR-National Bureau of Plant Genetic Resources, IARI Campus, Pusa, New Delhi, 110012 India
- ICAR-National Research Centre on Plant Biotechnology, LBS Building, IARI, New Delhi, 110012 India
| | - Abhishek Mazumder
- ICAR-National Research Centre on Plant Biotechnology, LBS Building, IARI, New Delhi, 110012 India
| | - Pawan Jayaswal
- ICAR-National Research Centre on Plant Biotechnology, LBS Building, IARI, New Delhi, 110012 India
| | - Tapan Kumar Mondal
- ICAR-National Bureau of Plant Genetic Resources, IARI Campus, Pusa, New Delhi, 110012 India
- ICAR-National Research Centre on Plant Biotechnology, LBS Building, IARI, New Delhi, 110012 India
- Present Address: Department of Biological Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
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13
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Daspute AA, Kobayashi Y, Panda SK, Fakrudin B, Kobayashi Y, Tokizawa M, Iuchi S, Choudhary AK, Yamamoto YY, Koyama H. Characterization of CcSTOP1; a C2H2-type transcription factor regulates Al tolerance gene in pigeonpea. PLANTA 2018; 247:201-214. [PMID: 28921050 DOI: 10.1007/s00425-017-2777-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 09/09/2017] [Indexed: 05/25/2023]
Abstract
MAIN CONCLUSION Al-responsive citrate-transporting CcMATE1 function and its regulation by CcSTOP1 were analyzed using NtSTOP1 -KD tobacco- and pigeonpea hairy roots, respectively, CcSTOP1 binding sequence of CcMATE1 showed similarity with AtALMT1 promoter. The molecular mechanisms of Aluminum (Al) tolerance in pigeonpea (Cajanus cajan) were characterized to provide information for molecular breeding. Al-inducible citrate excretion was associated with the expression of MULTIDRUGS AND TOXIC COMPOUNDS EXCLUSION (CcMATE1), which encodes a citrate transporter. Ectopic expression of CcMATE1-conferred Al tolerance to hairy roots of transgenic tobacco with the STOP1 regulation system knocked down. This gain-of-function approach clearly showed CcMATE1 was involved in Al detoxification. The expression of CcMATE1 and another Al-tolerance gene, ALUMINUM SENSITIVE 3 (CcALS3), was regulated by SENSITIVE TO PROTON RHIZOTOXICITY1 (CcSTOP1) according to loss-of-function analysis of pigeonpea hairy roots in which CcSTOP1 was suppressed. An in vitro binding assay showed that the Al-responsive CcMATE1 promoter contained the GGNVS consensus bound by CcSTOP1. Mutation of GGNVS inactivated the Al-inducible expression of CcMATE1 in pigeonpea hairy roots. This indicated that CcSTOP1 binding to the promoter is critical for CcMATE1 expression. The STOP1 binding sites of both the CcMATE1 and AtALMT1 promoters contained GGNVS and a flanking 3' sequence. The GGNVS region was identical in both CcMATE1 and AtALMT1. By contrast, the 3' flanking sequence with binding affinity to STOP1 did not show similarity. Putative STOP1 binding sites with similar structures were also found in Al-inducible MATE and ALMT1 promoters in other plant species. The characterized Al-responsive CcSTOP1 and CcMATE1 genes will help in pigeonpea breeding in acid soil tolerance.
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Affiliation(s)
- Abhijit Arun Daspute
- Laboratory of Plant Cell Technology, Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193, Japan
| | - Yuriko Kobayashi
- Laboratory of Plant Cell Technology, Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193, Japan
| | - Sanjib Kumar Panda
- Plant Molecular Biotechnology Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, 788011, India
| | - Bashasab Fakrudin
- Department of Biotechnology and Crop Improvement, Post Graduate Centre, University of Horticultural Sciences, Bengaluru, 560 065, India
| | - Yasufumi Kobayashi
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Guwahati, Assam, 781039, India
| | - Mutsutomo Tokizawa
- Laboratory of Plant Cell Technology, Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193, Japan
| | | | | | - Yoshiharu Y Yamamoto
- Laboratory of Plant Cell Technology, Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193, Japan
| | - Hiroyuki Koyama
- Laboratory of Plant Cell Technology, Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193, Japan.
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Zegaoui Z, Planchais S, Cabassa C, Djebbar R, Belbachir OA, Carol P. Variation in relative water content, proline accumulation and stress gene expression in two cowpea landraces under drought. JOURNAL OF PLANT PHYSIOLOGY 2017; 218:26-34. [PMID: 28763706 DOI: 10.1016/j.jplph.2017.07.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 06/02/2017] [Accepted: 07/03/2017] [Indexed: 05/09/2023]
Abstract
Many landraces of cowpea [Vigna unguiculata (L.) Walp.] are adapted to particular geographical and climatic conditions. Here we describe two landraces grown respectively in arid and temperate areas of Algeria and assess their physiological and molecular responses to drought stress. As expected, when deprived of water cowpea plants lose water over time with a gradual reduction in transpiration rate. The landraces differed in their relative water content (RWC) and whole plant transpiration rate. The landrace from Menia, an arid area, retained more water in adult leaves. Both landraces responded to drought stress at the molecular level by increasing expression of stress-related genes in aerial parts, including proline metabolism genes. Expression of gene(s) encoding proline synthesis enzyme P5CS was up regulated and gene expression of ProDH, a proline catabolism enzyme, was down regulated. Relatively low amounts of proline accumulated in adult leaves with slight differences between the two landraces. During drought stress the most apical part of plants stayed relatively turgid with a high RWC compared to distal parts that wilted. Expression of key stress genes was higher and more proline accumulated at the apex than in distal leaves indicating that cowpea has a non-uniform stress response at the whole plant level. Our study reveals a developmental control of water stress through preferential proline accumulation in the upper tier of the cowpea plant. We also conclude that cowpea landraces display physiological adaptations to water stress suited to the arid and temperate climates in which they are cultivated.
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Affiliation(s)
- Zahia Zegaoui
- Sorbonne Universités, UPMC Univ Paris 06, iEES, UMR 7618, (UPEC, UPMC, CNRS, IRD, INRA, Paris Diderot), case 237, 4 place Jussieu, F-75252, Paris cedex 05, France; Laboratory of Biology and Physiology of Organisms, Faculty of Biological Sciences, Houari Boumediene University of Sciences and Technology, BP 32, El Alia 16111, Algeria
| | - Séverine Planchais
- Sorbonne Universités, UPMC Univ Paris 06, iEES, UMR 7618, (UPEC, UPMC, CNRS, IRD, INRA, Paris Diderot), case 237, 4 place Jussieu, F-75252, Paris cedex 05, France
| | - Cécile Cabassa
- Sorbonne Universités, UPMC Univ Paris 06, iEES, UMR 7618, (UPEC, UPMC, CNRS, IRD, INRA, Paris Diderot), case 237, 4 place Jussieu, F-75252, Paris cedex 05, France
| | - Reda Djebbar
- Laboratory of Biology and Physiology of Organisms, Faculty of Biological Sciences, Houari Boumediene University of Sciences and Technology, BP 32, El Alia 16111, Algeria
| | - Ouzna Abrous Belbachir
- Laboratory of Biology and Physiology of Organisms, Faculty of Biological Sciences, Houari Boumediene University of Sciences and Technology, BP 32, El Alia 16111, Algeria
| | - Pierre Carol
- Sorbonne Universités, UPMC Univ Paris 06, iEES, UMR 7618, (UPEC, UPMC, CNRS, IRD, INRA, Paris Diderot), case 237, 4 place Jussieu, F-75252, Paris cedex 05, France
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15
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Li H, Zhang Y, Guo Q, Yao W. Molecular characterisation of a DREB gene from Sophora moorcroftiana, an endemic species of plateau. PROTOPLASMA 2017; 254:1735-1741. [PMID: 28050661 DOI: 10.1007/s00709-016-1065-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 12/14/2016] [Indexed: 06/06/2023]
Abstract
Various plant species in the Qinghai-Tibet Plateau exposed to harsh conditions, such as low oxygen, drought, extremely low temperatures and salinity, have evolved both molecular and physiological adaptation strategies to deal with these multiple stresses. Sophora moorcroftiana (Benth.) Baker (Fabaceae) is a highly drought-resistant endemic Sophora shrub species in the Qinghai-Tibet Plateau. In our previous study, a drought-induced DREB transcription factor gene was identified and was designated as SmDREB1. SmDREB1-GFP fusion construct was introduced into Arabidopsis protoplast to characterise the function of SmDREB1 in drought resistance. The results showed that SmDREB1 targets the nucleus of Arabidopsis protoplast. Ectopic expression of SmDREB1 in model plant species Arabidopsis was performed. The transgenic lines showed increasing expressions of drought marker genes including AtDHN, AtLEA, AtPIP2 ;2, AtPIP2;3 and AtRD29, increasing activities of antioxidant enzymes and proline contents and increasing light-use efficiency under drought stress as compared with the wild-type plants; SmDREB1 transgenic lines are more resistant to drought than wild-type plants. Therefore, the SmDREB1 is a drought-resistant transcription factor gene of S. moorcroftiana and could be a candidate in genetic engineering to improve drought resistance of plateau plant species.
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Affiliation(s)
- Huie Li
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China.
- Agricultural and Animal Husbandry College, Tibet University, Nyingchi, 860000, People's Republic of China.
| | - Yanfu Zhang
- Agricultural and Animal Husbandry College, Tibet University, Nyingchi, 860000, People's Republic of China
| | - Qiqiang Guo
- College of Forestry, Guizhou University, Guiyang, 550025, People's Republic of China
- Agricultural and Animal Husbandry College, Tibet University, Nyingchi, 860000, People's Republic of China
| | - Weijie Yao
- Agricultural and Animal Husbandry College, Tibet University, Nyingchi, 860000, People's Republic of China
- Forest Inventory and Planning Institute of Tibet Autonomous Region, Lhasa, 850000, People's Republic of China
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16
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Xiu Y, Iqbal A, Zhu C, Wu G, Chang Y, Li N, Cao Y, Zhang W, Zeng H, Chen S, Wang H. Improvement and transcriptome analysis of root architecture by overexpression of Fraxinus pennsylvanica DREB2A transcription factor in Robinia pseudoacacia L. 'Idaho'. PLANT BIOTECHNOLOGY JOURNAL 2016; 14:1456-69. [PMID: 26806173 PMCID: PMC5066641 DOI: 10.1111/pbi.12509] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 10/27/2015] [Accepted: 11/06/2015] [Indexed: 05/04/2023]
Abstract
Transcription factors play a key role to enable plants to cope with abiotic stresses. DREB2 regulates the expression of several stress-inducible genes and constitutes major hubs in the water stress signalling webs. We cloned and characterized a novel gene encoding the FpDREB2A transcription factor from Fraxinus pennsylvanica, and a yeast activity assay confirmed its DRE binding and transcription activation. Overexpression of FpDREB2A in R. pseudoacacia showed enhanced resistance to drought stress. The transgenic plant survival rate was significantly higher than that of WT in soil drying and re-watering treatments. Transgenic lines showed a dramatic change in root architecture, and horizontal and vertical roots were found in transgenic plants compared to WT. The vertical roots penetrated in the field soil to more than 60 cm deep, while horizontal roots expanded within the top 20-30 cm of the soil. A physiological test demonstrated that chlorophyll contents were more gradually reduced and that soluble sugars and proline levels elevated more sharply but malondialdehyde level stayed the same (P < 0.05). Plant hormone levels of abscisic acid and IAA were higher than that of WT, while gibberellins and zeatin riboside were found to be lower. The root transcriptomes were sequenced and annotated into 2011 differential expression genes (DEGs). The DEGs were categorized in 149 pathways and were found to be involved in plant hormone signalling, transcription factors, stimulus responses, phenylalanine, carbohydrate and other metabolic pathways. The modified pathways in plant hormone signalling are thought to be the main cause of greater horizontal and vertical root development, in particular.
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Affiliation(s)
- Yu Xiu
- College of Biological Sciences and Biotechnology, National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, China
| | - Arshad Iqbal
- College of Biological Sciences and Biotechnology, National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, China
| | - Chen Zhu
- College of Biological Sciences and Biotechnology, National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, China
| | - Guodong Wu
- College of Biological Sciences and Biotechnology, National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, China
| | - Yanping Chang
- College of Biological Sciences and Biotechnology, National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, China
| | - Na Li
- College of Biological Sciences and Biotechnology, National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, China
| | - Yu Cao
- College of Biological Sciences and Biotechnology, National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, China
| | | | - Huiming Zeng
- College of Biological Sciences and Biotechnology, National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, China
| | - Shouyi Chen
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Huafang Wang
- College of Biological Sciences and Biotechnology, National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, China
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17
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Zong JM, Li XW, Zhou YH, Wang FW, Wang N, Dong YY, Yuan YX, Chen H, Liu XM, Yao N, Li HY. The AaDREB1 Transcription Factor from the Cold-Tolerant Plant Adonis amurensis Enhances Abiotic Stress Tolerance in Transgenic Plant. Int J Mol Sci 2016; 17:ijms17040611. [PMID: 27110776 PMCID: PMC4849061 DOI: 10.3390/ijms17040611] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 04/15/2016] [Accepted: 04/18/2016] [Indexed: 11/28/2022] Open
Abstract
Dehydration-responsive element binding (DREB) transcription factors (TFs) play important roles in the regulation of plant resistance to environmental stresses and can specifically bind to dehydration-responsive element/C-repeat element (DRE/CRT) proteins (G/ACCGAC) and activate expression of many stress-inducible genes. Here, we cloned and characterized a novel gene (AaDREB1) encoding the DREB1 transcription factor from the cold-tolerant plant Adonis amurensis. Quantitative real-time (qRT)-PCR results indicated that AaDREB1 expression was induced by salt, drought, cold stress, and abscisic acid application. A yeast one-hybrid assay demonstrated that AaDREB1 encodes a transcription activator and specifically binds to DRE/CRT. Furthermore, transgenic Arabidopsis and rice harboring AaDREB1 showed enhanced tolerance to salt, drought, and low temperature. These results indicated that AaDREB1 might be useful in genetic engineering to improve plant stress tolerance.
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MESH Headings
- Abscisic Acid/pharmacology
- Adonis/genetics
- Adonis/metabolism
- Amino Acid Sequence
- Arabidopsis/genetics
- Arabidopsis/growth & development
- Arabidopsis/metabolism
- Cold Temperature
- DNA, Plant/chemistry
- DNA, Plant/isolation & purification
- DNA, Plant/metabolism
- Droughts
- Molecular Sequence Data
- Oryza/genetics
- Oryza/growth & development
- Oryza/metabolism
- Phylogeny
- Plant Proteins/chemistry
- Plant Proteins/genetics
- Plant Proteins/metabolism
- Plants, Genetically Modified/classification
- Plants, Genetically Modified/genetics
- Plants, Genetically Modified/growth & development
- Plants, Genetically Modified/physiology
- Plasmids/genetics
- Plasmids/metabolism
- Salts/pharmacology
- Sequence Alignment
- Sequence Analysis, DNA
- Stress, Physiological/drug effects
- Stress, Physiological/genetics
- Transcription Factors/chemistry
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Two-Hybrid System Techniques
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Affiliation(s)
- Jun-Mei Zong
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, Jilin, China.
| | - Xiao-Wei Li
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, Jilin, China.
| | - Yuan-Hang Zhou
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, Jilin, China.
| | - Fa-Wei Wang
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, Jilin, China.
| | - Nan Wang
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, Jilin, China.
| | - Yuan-Yuan Dong
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, Jilin, China.
| | - Yan-Xi Yuan
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, Jilin, China.
| | - Huan Chen
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, Jilin, China.
| | - Xiu-Ming Liu
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, Jilin, China.
| | - Na Yao
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, Jilin, China.
| | - Hai-Yan Li
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, Jilin, China.
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18
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Chen M, Wei M, Dong Z, Bao H, Wang Y. Genomic identification of microRNA promoters and their cis-acting elements in Populus. Genes Genomics 2016. [DOI: 10.1007/s13258-015-0378-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Chen H, Liu L, Wang L, Wang S, Cheng X. VrDREB2A, a DREB-binding transcription factor from Vigna radiata, increased drought and high-salt tolerance in transgenic Arabidopsis thaliana. JOURNAL OF PLANT RESEARCH 2016; 129:263-73. [PMID: 26646381 DOI: 10.1007/s10265-015-0773-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 10/15/2015] [Indexed: 05/27/2023]
Abstract
Mung bean (Vigna radiata L.) is commonly grown in Asia as an important nutritional dry grain legume, as it can survive better in arid conditions than other crops. Abiotic stresses, such as drought and high-salt contents, negatively impact its growth and production. The dehydration-responsive element-binding protein 2 (DREB2) transcription factors play a significant role in the response to these stress stimuli via transcriptional regulation of downstream genes containing the cis-element dehydration-responsive element (DRE). However, the molecular mechanisms involved in the drought tolerance of this species remain elusive, with very few reported candidate genes. No DREB2 ortholog has been reported for mung bean, and the function of mung bean DREB2 is not clear. In this study, a novel VrDREB2A gene with conserved AP2 domains and transactivation ability was isolated from mung bean. A modified VrDREB2A protein lacking the putative negative regulatory domain encoded by nucleotides 394-543 was shown to be localized in the nucleus. Expression of the VrDREB2A gene was induced by drought, high salt concentrations and abscisic acid treatment. Furthermore, comparing with the wild type Arabidopsis, the overexpression of VrDREB2A activated the expression of downstream genes in transgenic Arabidopsis, resulting in enhanced tolerance to drought and high-salt stresses and no growth retardation. The results from this study indicate that VrDREB2A functions as an important transcriptional activator and may help increase the abiotic stress tolerance of the mung bean plant.
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Affiliation(s)
- Honglin Chen
- Key Laboratory of Crop Germplasm Resources and Utilization, Ministry of Agriculture; National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Liping Liu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Lixia Wang
- Key Laboratory of Crop Germplasm Resources and Utilization, Ministry of Agriculture; National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Suhua Wang
- Key Laboratory of Crop Germplasm Resources and Utilization, Ministry of Agriculture; National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xuzhen Cheng
- Key Laboratory of Crop Germplasm Resources and Utilization, Ministry of Agriculture; National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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20
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The SsDREB Transcription Factor from the Succulent Halophyte Suaeda salsa Enhances Abiotic Stress Tolerance in Transgenic Tobacco. Int J Genomics 2015; 2015:875497. [PMID: 26504772 PMCID: PMC4609462 DOI: 10.1155/2015/875497] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 06/07/2015] [Indexed: 11/17/2022] Open
Abstract
Dehydration-responsive element-binding (DREB) transcription factor (TF) plays a key role for abiotic stress tolerance in plants. In this study, a novel cDNA encoding DREB transcription factor, designated SsDREB, was isolated from succulent halophyte Suaeda salsa. This protein was classified in the A-6 group of DREB subfamily based on multiple sequence alignments and phylogenetic characterization. Yeast one-hybrid assays showed that SsDREB protein specifically binds to the DRE sequence and could activate the expression of reporter genes in yeast, suggesting that the SsDREB protein was a CBF/DREB transcription factor. Real-time RT-PCR showed that SsDREB was significantly induced under salinity and drought stress. Overexpression of SsDREB cDNA in transgenic tobacco plants exhibited an improved salt and drought stress tolerance in comparison to the nontransformed controls. The transgenic plants revealed better growth, higher chlorophyll content, and net photosynthesis rate, as well as higher level of proline and soluble sugars. The semiquantitative PCR of transgenics showed higher expression of stress-responsive genes. These data suggest that the SsDREB transcription factor is involved in the regulation of salt stress tolerance in tobacco by the activation of different downstream gene expression.
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Sadhukhan A, Panda SK, Sahoo L. The cowpea RING ubiquitin ligase VuDRIP interacts with transcription factor VuDREB2A for regulating abiotic stress responses. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2014; 83:51-6. [PMID: 25090086 DOI: 10.1016/j.plaphy.2014.07.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 07/07/2014] [Indexed: 05/22/2023]
Abstract
Cowpea (Vigna unguiculata L. Walp) is an important grain legume cultivated in drought-prone parts of the world, having higher tolerance to heat and drought than many other crops. The transcription factor, Dehydration-Responsive Element-Binding protein 2A (DREB2A), controls expression of many genes involved in osmotic and heat stress responses of plants. In Arabidopsis, DREB2A-interacting proteins (DRIPs), which function as E3 ubiquitin ligases (EC 6.3.2.19), regulate the stability of DREB2A by targeting it for proteasome-mediated degradation. In this study, we cloned the cowpea ortholog of DRIP (VuDRIP) using PCR based methods. The 1614 bp long VuDRIP mRNA encoded a protein of 433 amino acids having a C3HC4-type Really Interesting New Gene (RING) domain in the N-terminus and a C-terminal conserved region, similar to Arabidopsis DRIP1 and DRIP2. We found VuDRIP up-regulation in response to various abiotic stresses and phytohormones. Using yeast (Saccharomyces cerevisae) two-hybrid analysis, VuDRIP was identified as a VuDREB2A-interacting protein. The results indicate negative regulation of VuDREB2A by ubiquitin ligases in cowpea similar to Arabidopsis along with their other unknown roles in stress and hormone signaling pathways.
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Affiliation(s)
- Ayan Sadhukhan
- Department of Biotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
| | - Sanjib Kumar Panda
- Department of Life Science and Bioinformatics, Assam University, Silchar 788011, India.
| | - Lingaraj Sahoo
- Department of Biotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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