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Licaj I, Di Meo MC, Fiorillo A, Samperna S, Marra M, Rocco M. Comparative Analysis of the Response to Polyethylene Glycol-Simulated Drought Stress in Roots from Seedlings of "Modern" and "Ancient" Wheat Varieties. PLANTS (BASEL, SWITZERLAND) 2023; 12:428. [PMID: 36771510 PMCID: PMC9921267 DOI: 10.3390/plants12030428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Durum wheat is widely cultivated in the Mediterranean, where it is the basis for the production of high added-value food derivatives such as pasta. In the next few years, the detrimental effects of global climate change will represent a serious challenge to crop yields. For durum wheat, the threat of climate change is worsened by the fact that cultivation relies on a few genetically uniform, elite varieties, better suited to intensive cultivation than "traditional" ones but less resistant to environmental stress. Hence, the renewed interest in "ancient" traditional varieties are expected to be more tolerant to environmental stress as a source of genetic resources to be exploited for the selection of useful agronomic traits such as drought tolerance. The aim of this study was to perform a comparative analysis of the effect and response of roots from the seedlings of two durum wheat cultivars: Svevo, a widely cultivated elite variety, and Saragolla, a traditional variety appreciated for its organoleptic characteristics, to Polyethylene glycol-simulated drought stress. The effect of water stress on root growth was analyzed and related to biochemical data such as hydrogen peroxide production, electrolyte leakage, membrane lipid peroxidation, proline synthesis, as well as to molecular data such as qRT-PCR analysis of drought responsive genes and proteomic analysis of changes in the protein repertoire of roots from the two cultivars.
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Affiliation(s)
- Ilva Licaj
- Department of Science and Technology, University of Sannio, 82100 Benevento, Italy
| | - Maria Chiara Di Meo
- Department of Science and Technology, University of Sannio, 82100 Benevento, Italy
| | - Anna Fiorillo
- Department of Biology, University of Tor Vergata, 00133 Rome, Italy
| | - Simone Samperna
- Department of Biology, University of Tor Vergata, 00133 Rome, Italy
| | - Mauro Marra
- Department of Biology, University of Tor Vergata, 00133 Rome, Italy
| | - Mariapina Rocco
- Department of Science and Technology, University of Sannio, 82100 Benevento, Italy
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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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Puppala N, Nayak SN, Sanz-Saez A, Chen C, Devi MJ, Nivedita N, Bao Y, He G, Traore SM, Wright DA, Pandey MK, Sharma V. Sustaining yield and nutritional quality of peanuts in harsh environments: Physiological and molecular basis of drought and heat stress tolerance. Front Genet 2023; 14:1121462. [PMID: 36968584 PMCID: PMC10030941 DOI: 10.3389/fgene.2023.1121462] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 02/06/2023] [Indexed: 03/29/2023] Open
Abstract
Climate change is significantly impacting agricultural production worldwide. Peanuts provide food and nutritional security to millions of people across the globe because of its high nutritive values. Drought and heat stress alone or in combination cause substantial yield losses to peanut production. The stress, in addition, adversely impact nutritional quality. Peanuts exposed to drought stress at reproductive stage are prone to aflatoxin contamination, which imposes a restriction on use of peanuts as health food and also adversely impact peanut trade. A comprehensive understanding of the impact of drought and heat stress at physiological and molecular levels may accelerate the development of stress tolerant productive peanut cultivars adapted to a given production system. Significant progress has been achieved towards the characterization of germplasm for drought and heat stress tolerance, unlocking the physiological and molecular basis of stress tolerance, identifying significant marker-trait associations as well major QTLs and candidate genes associated with drought tolerance, which after validation may be deployed to initiate marker-assisted breeding for abiotic stress adaptation in peanut. The proof of concept about the use of transgenic technology to add value to peanuts has been demonstrated. Advances in phenomics and artificial intelligence to accelerate the timely and cost-effective collection of phenotyping data in large germplasm/breeding populations have also been discussed. Greater focus is needed to accelerate research on heat stress tolerance in peanut. A suits of technological innovations are now available in the breeders toolbox to enhance productivity and nutritional quality of peanuts in harsh environments. A holistic breeding approach that considers drought and heat-tolerant traits to simultaneously address both stresses could be a successful strategy to produce climate-resilient peanut genotypes with improved nutritional quality.
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Affiliation(s)
- Naveen Puppala
- Agricultural Science Center at Clovis, New Mexico State University, Las Cruces, NM, United States
- *Correspondence: Naveen Puppala,
| | - Spurthi N. Nayak
- Department of Biotechnology, University of Agricultural Sciences, Dharwad, India
| | - Alvaro Sanz-Saez
- Department of Crop, Soil and Environmental Sciences, Auburn University, Auburn, AL, United States
| | - Charles Chen
- Department of Crop, Soil and Environmental Sciences, Auburn University, Auburn, AL, United States
| | - Mura Jyostna Devi
- USDA-ARS Vegetable Crops Research, Madison, WI, United States
- Department of Horticulture, University of Wisconsin-Madison, Madison, WI, United States
| | - Nivedita Nivedita
- Department of Horticulture, University of Wisconsin-Madison, Madison, WI, United States
| | - Yin Bao
- Biosystems Engineering Department, Auburn University, Auburn, AL, United States
| | - Guohao He
- Department of Plant and Soil Sciences, Tuskegee University, Tuskegee, AL, United States
| | - Sy M. Traore
- Department of Plant and Soil Sciences, Tuskegee University, Tuskegee, AL, United States
| | - David A. Wright
- Department of Biotechnology, Iowa State University, Ames, IA, United States
| | - Manish K. Pandey
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Telangana, India
| | - Vinay Sharma
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Telangana, India
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Venkatesh B, Vennapusa AR, Kumar NJ, Jayamma N, Reddy BM, Johnson AMA, Madhusudan KV, Pandurangaiah M, Kiranmai K, Sudhakar C. Co-expression of stress-responsive regulatory genes, MuNAC4, MuWRKY3 and MuMYB96 associated with resistant-traits improves drought adaptation in transgenic groundnut ( Arachis hypogaea l.) plants. FRONTIERS IN PLANT SCIENCE 2022; 13:1055851. [PMID: 36466254 PMCID: PMC9709484 DOI: 10.3389/fpls.2022.1055851] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 10/28/2022] [Indexed: 05/24/2023]
Abstract
Groundnut, cultivated under rain-fed conditions is prone to yield losses due to intermittent drought stress. Drought tolerance is a complex phenomenon and multiple gene expression required to maintain the cellular tolerance. Transcription factors (TFs) regulate many functional genes involved in tolerance mechanisms. In this study, three stress-responsive regulatory TFs cloned from horse gram, (Macrotyloma uniflorum (Lam) Verdc.), MuMYB96, involved in cuticular wax biosynthesis; MuWRKY3, associated with anti-oxidant defense mechanism and MuNAC4, tangled with lateral root development were simultaneously expressed to enhance drought stress resistance in groundnut (Arachis hypogaea L.). The multigene transgenic groundnut lines showed reduced ROS production, membrane damage, and increased superoxide dismutase (SOD) and ascorbate peroxidase (APX) enzyme activity, evidencing improved antioxidative defense mechanisms under drought stress. Multigene transgenic plants showed lower proline content, increased soluble sugars, epicuticular wax content and higher relative water content suggesting higher maintenance of tissue water status compared to wildype and mock plants. The scanning electron microscopy (SEM) analysis showed a substantial increase in deposition of cuticular waxes and variation in stomatal number in multigene transgenic lines compared to wild type and mock plants. The multigene transgenic plants showed increased growth of lateral roots, chlorophyll content, and stay-green nature in drought stress compared to wild type and mock plants. Expression analysis of transgenes, MuMYB96, MuWRKY3, and MuNAC4 and their downstream target genes, KCS6, KCR1, APX3, CSD1, LBD16 and DBP using qRT-PCR showed a two- to four-fold increase in transcript levels in multigene transgenic groundnut plants over wild type and mock plants under drought stress. Our study demonstrate that introducing multiple genes with simultaneous expression of genes is a viable option to improve stress tolerance and productivity under drought stress.
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Affiliation(s)
- Boya Venkatesh
- Plant Molecular Biology Laboratory, Department of Botany, Sri Krishnadevaraya University, Anantapuram, India
| | - Amaranatha R. Vennapusa
- Department of Agriculture and Natural Resources, Delaware State University, Dover, DE, United States
| | - Nulu Jagadeesh Kumar
- Plant Molecular Biology Laboratory, Department of Botany, Sri Krishnadevaraya University, Anantapuram, India
| | - N. Jayamma
- Plant Molecular Biology Laboratory, Department of Botany, Sri Krishnadevaraya University, Anantapuram, India
| | - B. Manohara Reddy
- Department of Botany, Government College (Autonomous), Anantapuram, India
| | | | - K. V. Madhusudan
- Department of Botany, Government College, Cluster University, Kurnool, India
| | - Merum Pandurangaiah
- Plant Molecular Biology Laboratory, Department of Botany, Sri Krishnadevaraya University, Anantapuram, India
| | - K. Kiranmai
- Plant Molecular Biology Laboratory, Department of Botany, Sri Krishnadevaraya University, Anantapuram, India
| | - Chinta Sudhakar
- Plant Molecular Biology Laboratory, Department of Botany, Sri Krishnadevaraya University, Anantapuram, India
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Berchembrock YV, Pathak B, Maurya C, Botelho FBS, Srivastava V. Phenotypic and transcriptomic analysis reveals early stress responses in transgenic rice expressing Arabidopsis DREB1a. PLANT DIRECT 2022; 6:e456. [PMID: 36267847 PMCID: PMC9579989 DOI: 10.1002/pld3.456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 08/13/2022] [Accepted: 09/25/2022] [Indexed: 06/16/2023]
Abstract
Overexpression of Arabidopsis dehydration response element binding 1a (DREB1a) is a well-known approach for developing salinity, cold and/or drought stress tolerance. However, understanding of the genetic mechanisms associated with DREB1a expression in rice is generally limited. In this study, DREB1a-associated early responses were investigated in a transgenic rice line harboring cold-inducible DREB1a at a gene stacked locus. Although the function of other genes in the stacked locus was not relevant to stress tolerance, this study demonstrates DREB1a can be co-localized with other genes for multigenic trait enhancement. As expected, the transgenic lines displayed improved tolerance to salinity stress and water withholding as compared with non-transgenic controls. RNA sequencing and transcriptome analysis showed upregulation of complex transcriptional networks and metabolic reprogramming as DREB1a expression led to the upregulation of multiple transcription factor gene families, suppression of photosynthesis, and induction of secondary metabolism. In addition to the detection of previously described mechanisms such as production of protective molecules, potentially novel pathways were also revealed. These include jasmonate, auxin, and ethylene signaling, induction of JAZ and WRKY regulons, trehalose synthesis, and polyamine catabolism. These genes regulate various stress responses and ensure timely attenuation of the stress signal. Furthermore, genes associated with heat stress response were downregulated in DREB1a expressing lines, suggesting antagonism between heat and dehydration stress response pathways. In summary, through a complex transcriptional network, multiple stress signaling pathways are induced by DREB1a that presumably lead to early perception and prompt response toward stress tolerance as well as attenuation of the stress signal to prevent deleterious effects of the runoff response.
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Affiliation(s)
- Yasmin Vasques Berchembrock
- Department of Crop, Soil, and Environmental SciencesUniversity of Arkansas System Division of AgricultureFayettevilleArkansasUSA
| | - Bhuvan Pathak
- Department of Crop, Soil, and Environmental SciencesUniversity of Arkansas System Division of AgricultureFayettevilleArkansasUSA
- Present address:
Biological and Life Sciences Division, School of Arts and SciencesAhmedabad University Central CampusNavrangpuraAhmedabadIndia
| | - Chandan Maurya
- Department of Crop, Soil, and Environmental SciencesUniversity of Arkansas System Division of AgricultureFayettevilleArkansasUSA
| | | | - Vibha Srivastava
- Department of Crop, Soil, and Environmental SciencesUniversity of Arkansas System Division of AgricultureFayettevilleArkansasUSA
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Genome-Wide Identification of Membrane-Bound Fatty Acid Desaturase Genes in Three Peanut Species and Their Expression in Arachis hypogaea during Drought Stress. Genes (Basel) 2022; 13:genes13101718. [PMID: 36292603 PMCID: PMC9601973 DOI: 10.3390/genes13101718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/17/2022] [Accepted: 09/21/2022] [Indexed: 11/16/2022] Open
Abstract
As a crop irrigated primarily by rain, the quality and yield of peanuts are significantly limited by drought. To date, many studies have indicated that fatty acid desaturase (FAD) genes enhance plant tolerance to drought stresses. In this study, 16, 15, and 31 FADs were identified in Arachis duranensis, Arachis ipaensis, and Arachis hypogaea, respectively. All the FADs were divided into four subfamilies, which had relatively conserved gene structures, motifs, and domains. The synteny relationships and chromosomal position analysis showed that the FADs in subgenome pairs, A. duranensis-A. hypogaea (AA) and A. ipaensis-A. hypogaea (BB), were homologous, and their physical locations were consistent. The Ka/Ks results indicated that nine FAD genes underwent a purifying selection, and Ah|FAD3.2 experienced positive selection during tetraploid peanut speciation. Various cis-acting elements related to hormone signaling and stress responsiveness in promoters and the predicted miRNA targeting Ah|FADs suggested that these genes play crucial roles in drought tolerance. The expression profiles of Ah|FADs in 22 tissues and drought-tolerant and -sensitive cultivars under drought stress suggested that 4 and 6 FADs were putative genes related to oil accumulation and drought, respectively. These findings will help provide insight into the potential functional roles of the FAD genes, which may aid in dealing with plant drought stress.
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Peanut Drought Risk Zoning in Shandong Province, China. SUSTAINABILITY 2022. [DOI: 10.3390/su14063322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Peanut growth in Shandong Province, a major peanut-producing area in China, is greatly affected by drought. The present study uses hierarchical analysis, weighted comprehensive evaluation, and ArcGIS spatial analysis to conduct spatial zoning of peanut drought risk in Shandong Province based on daily precipitation data for the province acquired from 1991 to 2020, the per capita GDP, and the peanut planting area of Shandong Province, so as to quantify the disaster risk of peanut drought and formulate disaster prevention and resilience planning accordingly. The results show the high-drought-risk zone was mainly distributed in the northwestern part of Shandong Province and on the Jiaodong Peninsula, covering 32.4% of the province. Drought risk was concentrated on the Jiaodong Peninsula, covering 20.7% of the province. The high-vulnerability zone was mainly distributed in the cities of Yantai, Weihai, Linyi, and Rizhao, accounting for 26.8% of the total area. The low-disaster-prevention and low-mitigation-capacity zone was mainly distributed in the western part of Shandong Province, covering 38.7% of the province. Medium- and high-risk areas for drought affecting peanuts were widely distributed, while the overall comprehensive risk index was high, covering 76.2% of the province. Spatial analysis to conduct risk zoning and assessment of peanut drought in Shandong Province, so as to provide a basis for peanut drought disaster prevention and safe peanut production in Shandong Province.
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Liang Y, Li X, Yang R, Gao B, Yao J, Oliver MJ, Zhang D. BaDBL1, a unique DREB gene from desiccation tolerant moss Bryum argenteum, confers osmotic and salt stress tolerances in transgenic Arabidopsis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 313:111047. [PMID: 34763851 DOI: 10.1016/j.plantsci.2021.111047] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 08/02/2021] [Accepted: 08/29/2021] [Indexed: 05/28/2023]
Abstract
The dehydration-responsive element-binding (DREB) transcription factors play important roles in regulation of plant responses to abiotic stresses, however, few DREBs have been isolated from a desiccation tolerance moss, and the role of DREBs in the DT mechanism is still unknown. We have functionally characterized a unique DREB transcription factor BaDBL1 from the DT moss Bryum argenteum. Expression pattern analysis revealed that BaDBL1 was induced by dehydration-rehydration, salt, cold, and abscisic acid treatments. BaDBL1 was localized in the nucleus and had a transactivation region in its C-terminal region. Overexpression of BaDBL1 in Arabidopsis resulted in significantly increased osmotic and salt stress tolerance, as illustrated by higher fresh weight and antioxidase activities (SOD, POD and CAT) compared with WT under osmotic and salt stresses. Moreover, the transcription of stress-responsive genes, such as AtRD29A and AtCOR15A, AtLEA in BaDBL1-overexpressing lines were significantly up-regulated under osmotic and salt stresses compared with WT. Transcriptomic analysis revealed that BaDBL1-overexpression affected the lignin biosynthesis pathway by improving lignin content and regulating lignin-biosynthesis-related genes under osmotic stress. The results suggest that BaDBL1 may regulate plant tolerance to stress by enhancing anti-oxidase activities, regulating expression of stress-related genes and effecting the lignin biosynthesis, making BaDBL1 a candidate gene for stress tolerance improvement in crops.
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Affiliation(s)
- Yuqing Liang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China; University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoshuang Li
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China; Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, China.
| | - Ruirui Yang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China; University of Chinese Academy of Sciences, Beijing, China
| | - Bei Gao
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China; Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, China
| | - Juanxia Yao
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China; University of Chinese Academy of Sciences, Beijing, China
| | | | - Daoyuan Zhang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China; Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, China.
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Jiménez VM, Carvajal-Campos P. Ingeniería genética contra estrés abiótico en cultivos neotropicales: osmolitos, factores de transcripción y CRISPR/Cas9. REVISTA COLOMBIANA DE BIOTECNOLOGÍA 2021. [DOI: 10.15446/rev.colomb.biote.v23n2.88487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
El neotrópico es sitio de origen de gran variedad de plantas que actualmente son cultivadas con éxito en diferentes regiones del mundo. Sin embargo, condiciones climáticas adversas, que se pueden ver acrecentadas por efectos del cambio climático antropogénico, pueden afectar su rendimiento y productividad debido a las situaciones de estrés abiótico que se pueden generar. Como alternativa para contrarrestar estos efectos, se ha experimentado con modificaciones genéticas, particularmente en genes relacionados con la producción de osmolitos y factores de transcripción que han llevado a que estas plantas, a nivel experimental, tengan mayor tolerancia a estrés oxidativo, altas y bajas temperaturas y fotoinhibición, sequía y salinidad, mediante la acumulación de osmoprotectores, la regulación en la expresión de genes y cambios en el fenotipo. En este trabajo se presentan y describen las estrategias metodológicas planteadas con estos fines y se complementan con ejemplos de trabajos realizados en cultivos de origen neotropical de importancia económica, como maíz, algodón, papa y tomate. Además, y debido a la novedad y potencial que ofrece la edición génica por medio del sistema CRISPR/Cas9, también se mencionan trabajos realizados en plantas con origen neotropical, enfocados en comprender e implementar mecanismos de tolerancia a sequía. Las metodologías aquí descritas podrían constituirse en opciones prácticas para mejorar la seguridad alimentaria con miras a contrarrestar las consecuencias negativas del cambio climático antropogénico.
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Patel M, Fatnani D, Parida AK. Silicon-induced mitigation of drought stress in peanut genotypes (Arachis hypogaea L.) through ion homeostasis, modulations of antioxidative defense system, and metabolic regulations. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 166:290-313. [PMID: 34146784 DOI: 10.1016/j.plaphy.2021.06.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 06/03/2021] [Indexed: 05/28/2023]
Abstract
Drought stress considered as a major environmental constraint that frequently limits crop production globally. In the current investigation, drought stress-induced alterations in growth, ion homeostasis, photosynthetic pigments, organic osmolytes, reactive oxygen species (ROS) generation, antioxidative components, and metabolic profile were examined in order to assess the role of silicon (Si) in mitigation of drought effects and to understand the drought adaptive mechanism in two contrasting peanut genotypes (GG7: fast growing and tall, TG26: slow growing and semi-dwarf). Si application significantly improved the leaf chlorophyll content, relative water content % (RWC %), growth and biomass in GG7 compared with TG26 genotype under water stress. Si supplementation considerably promotes the uptake and transport of mineral nutrients under drought condition in both the genotypes, which eventually promote plant growth. Exogenous application of Si protects the photosynthetic pigments from oxidative damage by reducing membrane lipid peroxidation and either maintained or reduced H2O2 accumulation in both the genotypes. The activity of enzymatic antioxidants like superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), guaiacol peroxidase (GPX), and glutathione reductase (GR) and non-enzymatic antioxidants like ascorbate (AsA) and glutathione (GSH) were either maintained or increased in both the genotypes in response to Si under drought as compared to those without Si. Silicon-induced higher accumulation of metabolites mainly sugars and sugar alcohols (talose, mannose, fructose, sucrose, cellobiose, trehalose, pinitol, and myo-inositol), amino acids (glutamic acid, serine, histidine, threonine, tyrosine, valine, isoleucine, and leucine) in GG7 genotype as compared to TG26, provides osmo-protection. Moreover, Si application increased phytohormones levels such as indole-3-acetic acid (IAA), gibberellic acid (GA3), jasmonic acid (JA), and zeatin in GG7 genotype under drought stress compared to non-Si treated seedlings suggesting its involvement in signaling pathways for drought adaptation and tolerance. Noteworthy increment in polyphenols (chlorogenic acid, caffeic acid, ellagic acid, rosmarinic acid, quercetin, coumarin, naringenin, and kaempferol) in the Si treated seedlings of GG7 genotype as compared to TG26 under drought stress suggests an efficient mechanism of ROS sequestration in GG7 genotype. Our findings provide comprehensive information on physiological, biochemical, and metabolic dynamics associated with Si-mediated water stress tolerance in peanut. This study indicates that the drought tolerance efficacy of peanut genotypes can be improved by Si application.
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Affiliation(s)
- Monika Patel
- Plant Omics Division, CSIR- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Gijubhai Badheka Marg, Bhavnagar, 364002, Gujarat, India; Academy of Scientific and Innovative Research, Ghaziabad, 201002, Uttar Pradesh, India
| | - Dhara Fatnani
- Plant Omics Division, CSIR- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Gijubhai Badheka Marg, Bhavnagar, 364002, Gujarat, India; Academy of Scientific and Innovative Research, Ghaziabad, 201002, Uttar Pradesh, India
| | - Asish Kumar Parida
- Plant Omics Division, CSIR- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Gijubhai Badheka Marg, Bhavnagar, 364002, Gujarat, India; Academy of Scientific and Innovative Research, Ghaziabad, 201002, Uttar Pradesh, India.
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11
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Ackah M, Shi Y, Wu M, Wang L, Guo P, Guo L, Jin X, Li S, Zhang Q, Qiu C, Lin Q, Zhao W. Metabolomics Response to Drought Stress in Morus alba L. Variety Yu-711. PLANTS (BASEL, SWITZERLAND) 2021; 10:1636. [PMID: 34451681 PMCID: PMC8400578 DOI: 10.3390/plants10081636] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 11/16/2022]
Abstract
Mulberry is an economically significant crop for the sericulture industry worldwide. Stresses such as drought exposure have a significant influence on plant survival. Because metabolome directly reflects plant physiological condition, performing a global metabolomic analysis is one technique to examine this influence. Using a liquid chromatography-mass spectrometry (LC-MS) technique based on an untargeted metabolomic approach, the effect of drought stress on mulberry Yu-711 metabolic balance was examined. For this objective, Yu-711 leaves were subjected to two weeks of drought stress treatment and control without drought stress. Numerous differentially accumulated metabolic components in response to drought stress treatment were revealed by multivariate and univariate statistical analysis. Drought stress treatment (EG) revealed a more differentiated metabolite response than the control (CK). We found that the levels of total lipids, galactolipids, and phospholipids (PC, PA, PE) were significantly altered, producing 48% of the total differentially expressed metabolites. Fatty acyls components were the most abundant lipids expressed and decreased considerably by 73.6%. On the other hand, the prenol lipids class of lipids increased in drought leaves. Other classes of metabolites, including polyphenols (flavonoids and cinnamic acid), organic acid (amino acids), carbohydrates, benzenoids, and organoheterocyclic, had a dynamic trend in response to the drought stress. However, their levels under drought stress decreased significantly compared to the control. These findings give an overview for the understanding of global plant metabolic changes in defense mechanisms by revealing the mulberry plant metabolic profile through differentially accumulated compounds.
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Affiliation(s)
- Michael Ackah
- School of Biology and Technology, Jiangsu University of Science and Technology, Sibaidu, Zhenjiang 212018, China; (Y.S.); (M.W.); (L.W.); (P.G.); (L.G.); (X.J.); (S.L.); (Q.Z.)
| | - Yisu Shi
- School of Biology and Technology, Jiangsu University of Science and Technology, Sibaidu, Zhenjiang 212018, China; (Y.S.); (M.W.); (L.W.); (P.G.); (L.G.); (X.J.); (S.L.); (Q.Z.)
| | - Mengmeng Wu
- School of Biology and Technology, Jiangsu University of Science and Technology, Sibaidu, Zhenjiang 212018, China; (Y.S.); (M.W.); (L.W.); (P.G.); (L.G.); (X.J.); (S.L.); (Q.Z.)
| | - Lei Wang
- School of Biology and Technology, Jiangsu University of Science and Technology, Sibaidu, Zhenjiang 212018, China; (Y.S.); (M.W.); (L.W.); (P.G.); (L.G.); (X.J.); (S.L.); (Q.Z.)
| | - Peng Guo
- School of Biology and Technology, Jiangsu University of Science and Technology, Sibaidu, Zhenjiang 212018, China; (Y.S.); (M.W.); (L.W.); (P.G.); (L.G.); (X.J.); (S.L.); (Q.Z.)
| | - Liangliang Guo
- School of Biology and Technology, Jiangsu University of Science and Technology, Sibaidu, Zhenjiang 212018, China; (Y.S.); (M.W.); (L.W.); (P.G.); (L.G.); (X.J.); (S.L.); (Q.Z.)
| | - Xin Jin
- School of Biology and Technology, Jiangsu University of Science and Technology, Sibaidu, Zhenjiang 212018, China; (Y.S.); (M.W.); (L.W.); (P.G.); (L.G.); (X.J.); (S.L.); (Q.Z.)
| | - Shaocong Li
- School of Biology and Technology, Jiangsu University of Science and Technology, Sibaidu, Zhenjiang 212018, China; (Y.S.); (M.W.); (L.W.); (P.G.); (L.G.); (X.J.); (S.L.); (Q.Z.)
| | - Qiaonan Zhang
- School of Biology and Technology, Jiangsu University of Science and Technology, Sibaidu, Zhenjiang 212018, China; (Y.S.); (M.W.); (L.W.); (P.G.); (L.G.); (X.J.); (S.L.); (Q.Z.)
| | - Changyu Qiu
- Sericulture Research Institute, Guangxi Zhuang Autonomous Region, Nanning 530007, China; (C.Q.); (Q.L.)
| | - Qiang Lin
- Sericulture Research Institute, Guangxi Zhuang Autonomous Region, Nanning 530007, China; (C.Q.); (Q.L.)
| | - Weiguo Zhao
- School of Biology and Technology, Jiangsu University of Science and Technology, Sibaidu, Zhenjiang 212018, China; (Y.S.); (M.W.); (L.W.); (P.G.); (L.G.); (X.J.); (S.L.); (Q.Z.)
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12
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Jiang C, Li X, Zou J, Ren J, Jin C, Zhang H, Yu H, Jin H. Comparative transcriptome analysis of genes involved in the drought stress response of two peanut (Arachis hypogaea L.) varieties. BMC PLANT BIOLOGY 2021; 21:64. [PMID: 33504328 PMCID: PMC7839228 DOI: 10.1186/s12870-020-02761-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 12/01/2020] [Indexed: 05/03/2023]
Abstract
BACKGROUND The peanut is one of the most important oil crops worldwide. Qualities and yields of peanut can be dramatically diminished by abiotic stresses particularly by drought. Therefore, it would be beneficial to gain a comprehensive understanding on peanut drought-responsive transcriptional regulatory activities, and hopefully to extract critical drought-tolerance-related molecular mechanism from it. RESULTS In this study, two peanut Arachis hypogaea L. varieties, NH5 (tolerant) and FH18 (sensitive), which show significantly differential drought tolerance, were screened from 23 main commercial peanut cultivars and used for physiological characterization and transcriptomic analysis. NH5 leaves showed higher water and GSH contents, faster stomatal closure, and lower relative conductivity (REC) than FH18. Under the time-course of drought-treatments 0 h (CK), 4 h (DT1), 8 h (DT2) and 24 h (DT3), the number of down-regulated differential expressed genes (DEGs) increased with the progression of treatments indicating repressive impacts on transcriptomes by drought in both peanut varieties. CONCLUSIONS Nevertheless, NH5 maintained more stable transcriptomic dynamics than FH18. Furthermore, annotations of identified DEGs implicate signal transduction, the elimination of reactive oxygen species, and the maintenance of cell osmotic potential which are key drought-tolerance-related pathways. Finally, evidences from the examination of ABA and SA components suggested that the fast stomatal closure in NH5 was likely mediated through SA rather than ABA signaling. In all, these results have provided us a comprehensive overview of peanut drought-responsive transcriptomic changes, which could serve as solid foundation for further identification of the molecular drought-tolerance mechanism in peanut and other oil crops.
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Affiliation(s)
- Chunji Jiang
- College of Agriculture, Shenyang Agricultural University, Shenyang, 110000, China
| | - Xinlin Li
- College of Environment and Resources, Dalian Minzu University, Dalian, 116600, China
| | - Jixiang Zou
- College of Environment and Resources, Dalian Minzu University, Dalian, 116600, China
| | - Jingyao Ren
- College of Agriculture, Shenyang Agricultural University, Shenyang, 110000, China
| | - Chunyi Jin
- College of Environment and Resources, Dalian Minzu University, Dalian, 116600, China
| | - He Zhang
- College of Agriculture, Shenyang Agricultural University, Shenyang, 110000, China
| | - Haiqiu Yu
- College of Agriculture, Shenyang Agricultural University, Shenyang, 110000, China.
| | - Hua Jin
- College of Environment and Resources, Dalian Minzu University, Dalian, 116600, China.
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13
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Gundaraniya S, Ambalam PS, Tomar RS. Metabolomic Profiling of Drought-Tolerant and Susceptible Peanut ( Arachis hypogaea L.) Genotypes in Response to Drought Stress. ACS OMEGA 2020; 5:31209-31219. [PMID: 33324830 PMCID: PMC7726923 DOI: 10.1021/acsomega.0c04601] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 11/09/2020] [Indexed: 05/10/2023]
Abstract
Peanut is frequently constrained by extreme environmental conditions such as drought. To reveal the involvement of metabolites, TAG 24 (drought-tolerant) and JL 24 (drought-sensitive) peanut genotypes were investigated under control and 20% PEG 6000-mediated water scarcity conditions at the seedling stage. Samples were analyzed by gas chromatography-mass spectrometry (GC-MS) to identify untargeted metabolites and targeted metabolites, i.e., polyamines and polyphenols by high-performance liquid chromatography (HPLC) and ultrahigh-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), respectively. The principal component analysis (PCA), partial least-squares discriminant analysis (PLS-DA), heat map, and cluster analysis were applied to the metabolomics data obtained by the GC-MS technique to determine the important metabolites for drought tolerance. Among 46 resulting metabolites, pentitol, phytol, xylonic acid, d-xylopyranose, stearic acid, and d-ribose were important drought-responsive metabolites. Agmatine and cadaverine were present in TAG 24 leaves and roots, respectively, during water-deficit conditions and believed to be the potential polyamines for drought tolerance. Polyphenols such as syringic acid and vanillic acid were produced more in the leaves of TAG 24, while catechin production was high in JL 24 during stress conditions. Seven metabolic pathways, namely, galactose metabolism, starch and sucrose metabolism, fructose and mannose metabolism, pentose and glucuronate interconversion, propanoate metabolism, amino sugar and nucleotide sugar metabolism, and biosynthesis of unsaturated fatty acids were significantly affected by water-deficit conditions. This study provides valuable information about the metabolic response of peanut to drought stress and metabolites identified, which encourages further study by transcriptome and proteomics to improve drought tolerance in peanut.
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Affiliation(s)
- Srutiben
A. Gundaraniya
- Department
of Biosciences, Saurashtra University, Rajkot, Gujarat 360005, India
- Christ
Campus, Vidya Niketan, Saurashtra University, Rajkot, Gujarat 360005, India
- Department
of Biotechnology and Biochemistry, Junagadh
Agricultural University, Junagadh, Gujarat 362001, India
| | - Padma S. Ambalam
- Christ
Campus, Vidya Niketan, Saurashtra University, Rajkot, Gujarat 360005, India
| | - Rukam S. Tomar
- Department
of Biotechnology and Biochemistry, Junagadh
Agricultural University, Junagadh, Gujarat 362001, India
- . Tel: +91 94260 37195
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14
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Sarkar T, Thankappan R, Mishra GP, Nawade BD. Advances in the development and use of DREB for improved abiotic stress tolerance in transgenic crop plants. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2019; 25:1323-1334. [PMID: 31736537 PMCID: PMC6825097 DOI: 10.1007/s12298-019-00711-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 05/07/2019] [Accepted: 08/29/2019] [Indexed: 05/09/2023]
Abstract
Abiotic stresses negatively influence the survival, biomass production, and yield of crops. Tolerance to diverse abiotic stresses in plants is regulated by multiple genes responding differently to various stress conditions. Genetic engineering approaches have helped develop transgenic crops with improved abiotic stress tolerance including yields. The dehydration-responsive element binding protein (DREB) is a stress-responsive transcription factor that modulates the expression of downstream stress-inducible genes, which confer simultaneous tolerance to multiple stresses. This review focuses on advances in the development of DREB transgenic crops and their characterization under various abiotic stress conditions. It further discusses the mechanistic aspects of abiotic stress tolerance, yield gain, the fate of transgenic plants under controlled and field conditions and future research directions toward commercialization of DREB transgenic crops.
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Affiliation(s)
- Tanmoy Sarkar
- ICAR-Directorate of Groundnut Research, Post Box 1, Junagadh, Gujarat 362001 India
- Central Sericultural Research & Training Institute (CSRTI), Mysuru, Karnataka 570 008 India
| | | | - Gyan P. Mishra
- ICAR-Directorate of Groundnut Research, Post Box 1, Junagadh, Gujarat 362001 India
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, Delhi 110012 India
| | - Bhagwat D. Nawade
- ICAR-Directorate of Groundnut Research, Post Box 1, Junagadh, Gujarat 362001 India
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15
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Bhalani H, Thankappan R, Mishra GP, Sarkar T, Bosamia TC, Dobaria JR. Regulation of antioxidant mechanisms by AtDREB1A improves soil-moisture deficit stress tolerance in transgenic peanut (Arachis hypogaea L.). PLoS One 2019; 14:e0216706. [PMID: 31071165 PMCID: PMC6508701 DOI: 10.1371/journal.pone.0216706] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 04/26/2019] [Indexed: 12/20/2022] Open
Abstract
The present study evaluated the soil-moisture deficit stress tolerance of AtDREB1A transgenic peanut lines during reproductive stages using lysimetric system under controlled glasshouse conditions. The antioxidant activities of AtDREB1A transgenic lines were measured by biochemical assays. The transgenic peanut lines recorded significantly lower accumulation of malondialdehyde and hydrogen peroxide than the wild-type. Whereas, specific activity of catalase, guaiacol peroxidase, ascorbate peroxidase, glutathione reductase and ascorbic acid were found to be significantly higher in transgenic lines than in the wild-type line under drought stress. The results showed that the transgenic lines expressed lower oxidative damage than wild-type and could protect themselves from the elevated levels of reactive oxygen species under drought stress. This could be attributed to the regulation of various stress-inducible genes by AtDREB1A transcription factor. Improved photosynthetic and growth parameters were also recorded in transgenic lines over wild-type under drought stress. Improved physio-biochemical mechanisms in transgenic peanut lines might have resulted in improved growth-related traits as significant correlations were observed between physio-biochemical parameters and growth-related traits under drought stress. The potential target genes of AtDREB1A transcription factor in transgenic peanut lines during drought stress were identified, which helped in understanding the molecular mechanisms of DREB-regulated stress responses. The transgenic line D6 reported the best physio-biochemical mechanisms and growth-related parameters under drought stress over other transgenic lines and wild-type, suggesting it may be used to develop high yielding and terminal drought-tolerant peanut varieties.
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Affiliation(s)
- Hiren Bhalani
- Directorate of Groundnut Research, Junagadh, Gujarat, India
- Junagadh Agricultural University, Junagadh, Gujarat, India
| | | | - Gyan P. Mishra
- Directorate of Groundnut Research, Junagadh, Gujarat, India
| | - Tanmoy Sarkar
- Directorate of Groundnut Research, Junagadh, Gujarat, India
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16
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Dai L, Zhang G, Yu Z, Ding H, Xu Y, Zhang Z. Effect of Drought Stress and Developmental Stages on Microbial Community Structure and Diversity in Peanut Rhizosphere Soil. Int J Mol Sci 2019; 20:ijms20092265. [PMID: 31071918 PMCID: PMC6540327 DOI: 10.3390/ijms20092265] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 05/03/2019] [Accepted: 05/06/2019] [Indexed: 01/13/2023] Open
Abstract
Background: Peanut (Arachis hypogaea L.), an important oilseed and food legume, is widely cultivated in the semi-arid tropics. Drought is the major stress in this region which limits productivity. Microbial communities in the rhizosphere are of special importance to stress tolerance. However, relatively little is known about the relationship between drought and microbial communities in peanuts. Method: In this study, deep sequencing of the V3-V4 region of the 16S rRNA gene was performed to characterize the microbial community structure of drought-treated and untreated peanuts. Results: Taxonomic analysis showed that Actinobacteria, Proteobacteria, Saccharibacteria, Chloroflexi, Acidobacteria and Cyanobacteria were the dominant phyla in the peanut rhizosphere. Comparisons of microbial community structure of peanuts revealed that the relative abundance of Actinobacteria and Acidobacteria dramatically increased in the seedling and podding stages in drought-treated soil, while that of Cyanobacteria and Gemmatimonadetes increased in the flowering stage in drought-treated rhizospheres. Metagenomic profiling indicated that sequences related to metabolism, signaling transduction, defense mechanism and basic vital activity were enriched in the drought-treated rhizosphere, which may have implications for plant survival and drought tolerance. Conclusion: This microbial communities study will form the foundation for future improvement of drought tolerance of peanuts via modification of the soil microbes.
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Affiliation(s)
- Liangxiang Dai
- Shandong Peanut Research Institute, Shandong Academy of Agricultural Sciences, Qingdao 266100, China.
| | - Guanchu Zhang
- Shandong Peanut Research Institute, Shandong Academy of Agricultural Sciences, Qingdao 266100, China.
| | - Zipeng Yu
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an 271018, China.
| | - Hong Ding
- Shandong Peanut Research Institute, Shandong Academy of Agricultural Sciences, Qingdao 266100, China.
| | - Yang Xu
- Shandong Peanut Research Institute, Shandong Academy of Agricultural Sciences, Qingdao 266100, China.
| | - Zhimeng Zhang
- Shandong Peanut Research Institute, Shandong Academy of Agricultural Sciences, Qingdao 266100, China.
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17
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Gantait S, Mondal S. Transgenic approaches for genetic improvement in groundnut ( Arachis hypogaea L.) against major biotic and abiotic stress factors. J Genet Eng Biotechnol 2018; 16:537-544. [PMID: 30733771 PMCID: PMC6354002 DOI: 10.1016/j.jgeb.2018.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 07/17/2018] [Accepted: 08/29/2018] [Indexed: 01/11/2023]
Abstract
Cultivated groundnut (Arachis hypogaea L.) is considered as one of the primary oilseed crops and a major fodder for cattle industry in most of the developing countries, owing to its rich source of protein. It is due to its geocarpic nature of growth that the overall yield performance of groundnut is hindered by several biotic and abiotic stress factors. Multidimensional attempts were undertaken to combat these factors by developing superior groundnut varieties, modified with integral mechanism of tolerance/resistance; however this approach proved to be futile, owing to inferior pod and kernel quality. As a superior alternative, biotechnological intervention like transformation of foreign genes, either directly (biolistic) or via Agrobacterium, significantly aided in the development of advanced groundnut genotypes equipped with integral resistance against stresses and enhanced yield attributing traits. Several genes triggered by biotic and abiotic stresses, were detected and some of them were cloned and transformed as major parts of transgenic programmes. Application of modern molecular biological techniques, in designing biotic and abiotic stress tolerant/resistant groundnut varieties that exhibited mechanisms of resistance, relied on the expression of specific genes associated to particular stress. The genetically transformed stress tolerant groundnut varieties possess the potential to be employed as donor parents in traditional breeding programmes for developing varieties that are resilient to fungal, bacterial, and viral diseases, as well as to draught and salinity. The present review emphasizes on the retrospect and prospect of genetic transformation tools, implemented for the enhancement of groundnut varieties against key biotic and abiotic stress factors.
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Affiliation(s)
- Saikat Gantait
- All India Coordinated Research Project on Groundnut, Directorate of Research, Bidhan Chandra Krishi Viswavidyalaya, Kalyani, Nadia, West Bengal 741235, India
- Department of Genetics and Plant Breeding, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal 741252, India
| | - Suvendu Mondal
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai 400085, Maharashtra, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, Maharashtra, India
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18
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Akram NA, Shafiq F, Ashraf M. Peanut (Arachis hypogaea L.): A Prospective Legume Crop to Offer Multiple Health Benefits Under Changing Climate. Compr Rev Food Sci Food Saf 2018; 17:1325-1338. [PMID: 33350163 DOI: 10.1111/1541-4337.12383] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/21/2018] [Accepted: 06/22/2018] [Indexed: 12/19/2022]
Abstract
Peanut is a multipurpose oil-seed legume, which offer benefits in many ways. Apart from the peanut plant's beneficial effects on soil quality, peanut seeds are nutritious and medicinally and economically important. In this review, insights into peanut origin and its domestication are provided. Peanut is rich in bioactive components, including phenolics, flavonoids, polyphenols, and resveratrol. In addition, the involvement of peanut in biological nitrogen fixation is highly significant. Recent reports regarding peanut responses and N2 fixation ability in response to abiotic stresses, including drought, salinity, heat stress, and iron deficiency on calcareous soils, have been incorporated. As a biotechnological note, recent advances in the development of transgenic peanut plants are also highlighted. In this context, regulation of transcriptional factors and gene transfer for the development of stress-tolerant peanut genotypes are of prime importance. Above all, this review signifies the importance of peanut cultivation and human consumption in view of the scenario of changing world climate in order to maintain food security.
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Affiliation(s)
| | - Fahad Shafiq
- Dept. of Botany, Government College Univ. Faisalabad, Pakistan
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19
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Hamid R, Tomar RS, Marashi H, Shafaroudi SM, Golakiya BA, Mohsenpour M. Transcriptome profiling and cataloging differential gene expression in floral buds of fertile and sterile lines of cotton (Gossypium hirsutum L.). Gene 2018; 660:80-91. [PMID: 29577977 DOI: 10.1016/j.gene.2018.03.070] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 03/14/2018] [Accepted: 03/21/2018] [Indexed: 01/02/2023]
Abstract
Cytoplasmic Male Sterility is maternally inherited trait in plants, characterized by failure to produce functional pollen during anther development. Anther development is modulated through the interaction of nuclear and mitochondrial genes. In the present study, differential gene expression of floral buds at the sporogenous stage (SS) and microsporocyte stage (MS) between CGMS and its fertile maintainer line of cotton plants was studied. A total of 320 significantly differentially expressed genes, including 20 down-regulated and 37 up-regulated in CGMS comparing with its maintainer line at the SS stage, as well as and 89 down-regulated and 4 up-regulated in CGMS compared to the fertile line at MS stage. Comparing the two stages in the same line, there were 6 down-regulated differentially expressed genes only induced in CGMS and 9 up-regulated differentially expressed gene only induced in its maintainer. GO analysis revealed essential genes responsible for pollen development, and cytoskeleton category show differential expression between the fertile and CGMS lines. Validation studies by qRT-PCR shows concordance with RNA-seq result. A set of novel SSRs identified in this study can be used in evaluating genetic relationships among cultivars, QTL mapping, and marker-assisted breeding. We reported aberrant expression of genes related to pollen exine formation, and synthesis of pectin lyase, myosine heavy chain, tubulin, actin-beta, heat shock protein and myeloblastosis (MYB) protein as targets for CMS in cotton. The results of this study contribute to basic information for future screening of genes and identification of molecular portraits responsible for CMS as well as to elucidate molecular mechanisms that lead to CMS in cotton.
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Affiliation(s)
- Rasmieh Hamid
- Department of Biotechnology and Plant Breeding, Ferdowsi University of Mashhad, Iran
| | - Rukam S Tomar
- Department of Biotechnology and Biochemistry, Junagadh Agricultural University, Junagadh, Gujarat, India
| | - Hassan Marashi
- Department of Biotechnology and Plant Breeding, Ferdowsi University of Mashhad, Iran.
| | | | - Balaji A Golakiya
- Department of Biotechnology and Biochemistry, Junagadh Agricultural University, Junagadh, Gujarat, India
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Banavath JN, Chakradhar T, Pandit V, Konduru S, Guduru KK, Akila CS, Podha S, Puli COR. Stress Inducible Overexpression of AtHDG11 Leads to Improved Drought and Salt Stress Tolerance in Peanut ( Arachis hypogaea L.). Front Chem 2018; 6:34. [PMID: 29552555 PMCID: PMC5840212 DOI: 10.3389/fchem.2018.00034] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 02/12/2018] [Indexed: 12/25/2022] Open
Abstract
Peanut is an important oilseed and food legume cultivated as a rain-fed crop in semi-arid tropics. Drought and high salinity are the major abiotic stresses limiting the peanut productivity in this region. Development of drought and salt tolerant peanut varieties with improved yield potential using biotechnological approach is highly desirable to improve the peanut productivity in marginal geographies. As abiotic stress tolerance and yield represent complex traits, engineering of regulatory genes to produce abiotic stress-resilient transgenic crops appears to be a viable approach. In the present study, we developed transgenic peanut plants expressing an Arabidopsis homeodomain-leucine zipper transcription factor (AtHDG11) under stress inducible rd29A promoter. A stress-inducible expression of AtHDG11 in three independent homozygous transgenic peanut lines resulted in improved drought and salt tolerance through up-regulation of known stress responsive genes (LEA, HSP70, Cu/Zn SOD, APX, P5CS, NCED1, RRS5, ERF1, NAC4, MIPS, Aquaporin, TIP, ELIP) in the stress gene network, antioxidative enzymes, free proline along with improved water use efficiency traits such as longer root system, reduced stomatal density, higher chlorophyll content, increased specific leaf area, improved photosynthetic rates, and increased intrinsic instantaneous WUE. Transgenic peanut plants displayed high yield compared to non-transgenic plants under both drought and salt stress conditions. Holistically, our study demonstrates the potentiality of stress-induced expression of AtHDG11 to improve the drought, salt tolerance in peanut.
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Affiliation(s)
- Jayanna N. Banavath
- Plant Molecular Biology Laboratory, Department of Botany, Yogi Vemana University, Kadapa, India
| | | | - Varakumar Pandit
- Plant Molecular Biology Laboratory, Department of Botany, Yogi Vemana University, Kadapa, India
| | - Sravani Konduru
- Plant Molecular Biology Laboratory, Department of Botany, Yogi Vemana University, Kadapa, India
| | - Krishna K. Guduru
- Plant Molecular Biology Laboratory, Department of Botany, Yogi Vemana University, Kadapa, India
| | - Chandra S. Akila
- Molecular Genetics and Functional Genomics Laboratory, Department of Biotechnology, Yogi Vemana University, Kadapa, India
| | - Sudhakar Podha
- Department of Biotechnology, Acharya Nagarjuna University, Guntur, India
| | - Chandra O. R. Puli
- Plant Molecular Biology Laboratory, Department of Botany, Yogi Vemana University, Kadapa, India
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21
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Patel KG, Thankappan R, Mishra GP, Mandaliya VB, Kumar A, Dobaria JR. Transgenic Peanut ( Arachis hypogaea L.) Overexpressing mtlD Gene Showed Improved Photosynthetic, Physio-Biochemical, and Yield-Parameters under Soil-Moisture Deficit Stress in Lysimeter System. FRONTIERS IN PLANT SCIENCE 2017; 8:1881. [PMID: 29163606 PMCID: PMC5675886 DOI: 10.3389/fpls.2017.01881] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 10/17/2017] [Indexed: 05/24/2023]
Abstract
Peanut, an important oilseed crop, frequently encounters drought stress (DS) during its life cycle. In this study, four previously developed mtlD transgenic (T) peanut lines were used for detailed characterization under DS, at the reproductive stage using lysimeter system under controlled greenhouse conditions. In dry-down experiments, T lines maintained better photosynthetic machinery, such as, photosynthesis rate, stomatal conductance, transpiration rate, and SPAD (Soil-Plant Analyses Development) values, and had lower oxidative damage, including lipid membrane peroxidation and hydrogen peroxide and superoxide radical accumulation than WT, when exposed to 24 days of DS. WT plants had a more negative water potential (WP; up to -3.22 MPa) than T lines did (-2.56 to -2.71 MPa) at day 24 of DS treatment. During recovery, T lines recovered easily whereas 67% of WT plants failed to recover. In T lines, the rate of photosynthesis strongly and positively correlated with the transpiration rate (r = 0.92), RWC (r = 0.90), WP (r = 0.86), and total chlorophyll content (r = 0.75), suggesting its strong correlation with water retention-related parameters. Furthermore, yield parameters such as, pod weight and harvest index of T lines were up to 2.19 and 1.38 times more than those of WT plants, respectively. Thus, the significantly better performance of mtlD T peanut lines than of WT plants under DS could be attributed to the accumulation of mannitol, which in turn helped in maintaining the osmoregulation and ROS scavenging activity of mannitol and ultimately conferred water-economizing capacity and higher yield in T lines than in WT plants.
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Affiliation(s)
- Kirankumar G. Patel
- Directorate of Groundnut Research (ICAR), Junagadh, India
- Department of Biological Sciences, P. D. Patel Institute of Applied Sciences, Changa, India
| | | | - Gyan P. Mishra
- Directorate of Groundnut Research (ICAR), Junagadh, India
| | - Viralkumar B. Mandaliya
- Directorate of Groundnut Research (ICAR), Junagadh, India
- Gujarat National Law University, Gandhinagar, India
| | - Abhay Kumar
- Directorate of Groundnut Research (ICAR), Junagadh, India
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Jin R, Kim BH, Ji CY, Kim HS, Li HM, Ma DF, Kwak SS. Overexpressing IbCBF3 increases low temperature and drought stress tolerance in transgenic sweetpotato. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 118:45-54. [PMID: 28603083 DOI: 10.1016/j.plaphy.2017.06.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 05/26/2017] [Accepted: 06/01/2017] [Indexed: 05/02/2023]
Abstract
Dehydration-responsive element-binding/C-repeat-binding factor (DREB/CBF) proteins regulate the transcription of genes involved in cold acclimation in several species. However, little is known about the physiological functions of CBF proteins in the low temperature-sensitive crop sweetpotato. We previously reported that the DREB1/CBF-like sweetpotato gene SwDREB1/IbCBF3 is involved in responses to diverse abiotic stresses. In this study, we confirmed that IbCBF3 is localized to the nucleus and binds to the C-repeat/dehydration-responsive elements (CRT/DRE) in the promoters of cold-regulated (COR) genes. We generated transgenic sweetpotato plants overexpressing IbCBF3 under the control of the CaMV 35S promoter (referred to as SC plants) and evaluated their responses to various abiotic stresses. IbCBF3 expression was dramatically induced by cold and drought but much less strongly induced by high salinity and ABA. We further characterized two SC lines (SC3 and SC6) with high levels of IbCBF3 transcript. The SC plants displayed enhanced tolerance to cold, drought, and oxidative stress on the whole-plant level. Under cold stress treatment (4 °C for 48 h), severe wilting and chilling injury were observed in the leaves of wild-type (WT) plants, whereas SC plants were not affected by cold stress. In addition, the COR genes were significantly upregulated in SC plants compared with the WT. The SC plants also showed significantly higher tolerance to drought stress than the WT, which was associated with higher photosynthesis efficiency and lower hydrogen peroxide levels. These results indicate that IbCBF3 is a functional transcription factor involved in the responses to various abiotic stresses in sweetpotato.
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Affiliation(s)
- Rong Jin
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Daejeon 34141, South Korea; Department of Environmental Biotechnology, KRIBB School of Biotechnology, Korea University of Science and Technology (UST), 217 Gajeong-ro, Daejeon 34113, South Korea; Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Xuzhou 221121, Jiangsu, China
| | - Beg Hab Kim
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Daejeon 34141, South Korea
| | - Chang Yoon Ji
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Daejeon 34141, South Korea; Department of Environmental Biotechnology, KRIBB School of Biotechnology, Korea University of Science and Technology (UST), 217 Gajeong-ro, Daejeon 34113, South Korea
| | - Ho Soo Kim
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Daejeon 34141, South Korea
| | - Hong Min Li
- Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Xuzhou 221121, Jiangsu, China
| | - Dai Fu Ma
- Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Xuzhou 221121, Jiangsu, China
| | - Sang-Soo Kwak
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Daejeon 34141, South Korea; Department of Environmental Biotechnology, KRIBB School of Biotechnology, Korea University of Science and Technology (UST), 217 Gajeong-ro, Daejeon 34113, South Korea.
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Sarkar T, Mogili T, Sivaprasad V. Improvement of abiotic stress adaptive traits in mulberry (Morus spp.): an update on biotechnological interventions. 3 Biotech 2017; 7:214. [PMID: 28669073 PMCID: PMC5494030 DOI: 10.1007/s13205-017-0829-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 05/19/2017] [Indexed: 10/19/2022] Open
Abstract
Mulberry (Morus spp.), being an economically important tree, is cultivated in China, India, Thailand, Brazil, Uzbekistan and other Countries across the globe, for its leaves to feed monophagous mulberry silkworm (Bombyx mori). The sustainability of silk industry is directly correlated with the production and continuous supply of high-quality mulberry leaves. In India, it is cultivated on large scale in tropical, sub-tropical and temperate regions under irrigated conditions for silkworm rearing. Drought, low temperature, high salinity and alkalinity, being experienced in widespread areas, are the major abiotic stresses, causing reduction in its potential foliage yield and quality. Further, climate change effects may worsen the productivity of mulberry in near future, not only in India but also across the globe. Although traditional breeding methods contributed immensely towards the development of abiotic stress-tolerant mulberry varieties, still there is lot of scope for implementation of modern genomic and molecular biology tools for accelerating mulberry genetic improvement programmes. This review discusses omics approaches, molecular breeding, plant tissue culture and genetic engineering techniques exploited for mulberry genetic improvement for abiotic stress tolerance. However, high-throughput biotechnological tools such as RNA interference, virus-induced gene silencing, epigenomics and genome editing tools need to be utilized in mulberry to accelerate the progress of functional genomics. The application of genomic tools such as genetic engineering, marker-assisted selection and genomic selection in breeding programmes can hasten the development of climate resilient and productive mulberry varieties leading to the vertical and horizontal expansion for quality silk production.
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Affiliation(s)
- Tanmoy Sarkar
- Central Sericultural Research & Training Institute (CSRTI), Mysuru, Karnataka, 570 008, India.
| | - Thallapally Mogili
- Central Sericultural Research & Training Institute (CSRTI), Mysuru, Karnataka, 570 008, India
| | - Vankadara Sivaprasad
- Central Sericultural Research & Training Institute (CSRTI), Mysuru, Karnataka, 570 008, India
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24
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Santosh Rama Bhadra Rao T, Vijaya Naresh J, Sudhakar Reddy P, Reddy MK, Mallikarjuna G. Expression of Pennisetum glaucum Eukaryotic Translational Initiation Factor 4A ( PgeIF4A) Confers Improved Drought, Salinity, and Oxidative Stress Tolerance in Groundnut. FRONTIERS IN PLANT SCIENCE 2017; 8:453. [PMID: 28439277 PMCID: PMC5383670 DOI: 10.3389/fpls.2017.00453] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 03/15/2017] [Indexed: 05/28/2023]
Abstract
Eukaryotic translational initiation factor 4A belong to family of helicases, involved in multifunctional activities during stress and non-stress conditions. The eIF4A gene was isolated and cloned from semi-arid cereal crop of Pennisetum glaucum. In present study, the PgeIF4A gene was expressed under the regulation of stress inducible Arabidopsis rd29A promoter in groundnut (cv JL-24) with bar as a selectable marker. The de-embryonated cotyledons were infected with Agrobacterium tumefaciens (LBA4404) carrying rd29A:PgeIF4A construct and generated high frequency of multiple shoots in phosphinothricin medium. Twenty- four T0 plants showed integration of both nos-bar and rd29A-PgeIF4A gene cassettes in genome with expected amplification products of 429 and 654 bps, respectively. Transgene copy number integration was observed in five T0 transgenic plants through Southern blot analysis. Predicted Mendelian ratio of segregation (3:1) was noted in transgenic plants at T1 generation. The T2 homozygous lines (L1-5, L8-2, and L16-2) expressing PgeIF4A gene were exhibited superior growth performance with respect to phenotypic parameters like shoot length, tap root length, and lateral root formation under simulated drought and salinity stresses compared to the wild type. In addition, the chlorophyll retention was found to be higher in these plants compared to the control plants. The quantitative real time-PCR results confirmed higher expression of PgeIF4A gene in L1-5, L8-3, and L16-2 plants imposed with drought/salt stress. Further, the salt stress tolerance was associated with increase in oxidative stress markers, such as superoxide dismutase accumulation, reactive oxygen species scavenging, and membrane stability in transgenic plants. Taken together our results confirmed that the PgeIF4A gene expressing transgenic groundnut plants exhibited better adaptation to stress conditions.
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Affiliation(s)
| | | | - Palakolanu Sudhakar Reddy
- Cell, Molecular Biology and Genetic Engineering Group, International Crops Research Institute for the Semi-Arid TropicsHyderabad, India
| | - Malireddy K. Reddy
- Crop improvement group, International Center for Genetic Engineering and BiotechnologyNew Delhi, India
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25
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Agarwal P, Dabi M, Sapara KK, Joshi PS, Agarwal PK. Ectopic Expression of JcWRKY Transcription Factor Confers Salinity Tolerance via Salicylic Acid Signaling. FRONTIERS IN PLANT SCIENCE 2016; 7:1541. [PMID: 27799936 PMCID: PMC5065966 DOI: 10.3389/fpls.2016.01541] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 09/30/2016] [Indexed: 05/08/2023]
Abstract
Plants, being sessile, have developed intricate signaling network to specifically respond to the diverse environmental stress. The plant-specific WRKY TFs form one of the largest TF family and are involved in diverse plant processes, involving growth, development and stress signaling through auto and cross regulation with different genes and TFs. Here, we report the functional characterization of a salicylic acid -inducible JcWRKY TF. The JcWRKY overexpression confers salinity tolerance in transgenic tobacco, as was evident by increased chlorophyll content and seed germination potential. The transgenic plants showed increased soluble sugar, membrane stability, reduced electrolyte leakage and generation of reactive oxygen species (H2O2 and [Formula: see text]) as compared to the wild type. Furthermore, the low SA treatment along with salinity improved the tolerance potential of the transgenics by maintaining ROS homeostasis and high K+/Na+ ratio. The transcript expression of SA biosynthetic gene ICS1 and antioxidative enzymes (CAT and SOD) showed upregulation during stress. Thus, the present study reflects that JcWRKY is working in co-ordination with SA signaling to orchestrate the different biochemical and molecular pathways to maneuvre salt stress tolerance of the transgenic plants.
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Affiliation(s)
- Parinita Agarwal
- Plant Omics Division, Central Salt and Marine Chemicals Research Institute (CSIR) – Council of Scientific and Industrial ResearchBhavnagar, India
- *Correspondence: Parinita Agarwal,
| | - Mitali Dabi
- Plant Omics Division, Central Salt and Marine Chemicals Research Institute (CSIR) – Council of Scientific and Industrial ResearchBhavnagar, India
- Academy of Scientific and Innovative Research, Central Salt and Marine Chemicals Research Institute –Council of Scientific and Industrial ResearchBhavnagar, India
| | - Komal K. Sapara
- Plant Omics Division, Central Salt and Marine Chemicals Research Institute (CSIR) – Council of Scientific and Industrial ResearchBhavnagar, India
- Academy of Scientific and Innovative Research, Central Salt and Marine Chemicals Research Institute –Council of Scientific and Industrial ResearchBhavnagar, India
| | - Priyanka S. Joshi
- Plant Omics Division, Central Salt and Marine Chemicals Research Institute (CSIR) – Council of Scientific and Industrial ResearchBhavnagar, India
- Academy of Scientific and Innovative Research, Central Salt and Marine Chemicals Research Institute –Council of Scientific and Industrial ResearchBhavnagar, India
| | - Pradeep K. Agarwal
- Plant Omics Division, Central Salt and Marine Chemicals Research Institute (CSIR) – Council of Scientific and Industrial ResearchBhavnagar, India
- Academy of Scientific and Innovative Research, Central Salt and Marine Chemicals Research Institute –Council of Scientific and Industrial ResearchBhavnagar, India
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