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Kumari N, Kaur S, Sharma V. Dissecting the role of salicylic acid in mediating stress response in mungbean cultivars concurrently exposed to Macrophomina phaseolina infection and drought stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108660. [PMID: 38678945 DOI: 10.1016/j.plaphy.2024.108660] [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: 11/14/2023] [Revised: 04/07/2024] [Accepted: 04/23/2024] [Indexed: 05/01/2024]
Abstract
The combined stress studies provide fundamental knowledge that could assist in producing multiple stress resilient crops. The fungal phytopathogen, Macrophomina phaseolina is a major limiting factor in the productivity of the crop, Vigna radiata (mungbean). This fungal species tends to flourish under hot and dry conditions. Therefore, in this study the salicylic acid (SA) mediated stress responses in contrasting mungbean cultivars (Shikha and RMG-975) exposed to combined M. phaseolina infection (F) and drought stress (D) have been elucidated. The combined stress was applied to ten days seedlings in three orders i.e. drought followed by fungal infection (DF), drought followed by fungal infection with extended water deficit (DFD) and fungal infection followed by drought stress (FD). The severity of infection was analyzed using ImageJ analysis. Besides, the concentration of SA has been correlated with the phenylpropanoid pathway products, expression of pathogenesis-related proteins (β-1,3-glucanase and chitinase) and the specific activity of certain related enzymes (phenylalanine ammonia lyase, lipoxygenase and glutathione-S-transferase). The data revealed that the cultivar RMG-975 was relatively more tolerant than Shikha under individual stresses. However, the former became more susceptible to the infection under DFD treatment while the latter showed tolerance. Otherwise, the crown rot severity was reduced in both the cultivars under other combined treatments. The stress response analysis suggested that enhanced chitinase expression is vital for tolerance against both, the pathogen and drought stress. Also, it was noted that plants treat each stress combination differently and the role of SA was more prominently visible under individual stress conditions.
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Affiliation(s)
- Nilima Kumari
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Rajasthan, 304022, India.
| | - Sahib Kaur
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Rajasthan, 304022, India
| | - Vinay Sharma
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur 303002, India
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Valencia-Lozano E, Herrera-Isidrón L, Flores-López JA, Recoder-Meléndez OS, Uribe-López B, Barraza A, Cabrera-Ponce JL. Exploring the Potential Role of Ribosomal Proteins to Enhance Potato Resilience in the Face of Changing Climatic Conditions. Genes (Basel) 2023; 14:1463. [PMID: 37510367 PMCID: PMC10379993 DOI: 10.3390/genes14071463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/05/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Potatoes have emerged as a key non-grain crop for food security worldwide. However, the looming threat of climate change poses significant risks to this vital food source, particularly through the projected reduction in crop yields under warmer temperatures. To mitigate potential crises, the development of potato varieties through genome editing holds great promise. In this study, we performed a comprehensive transcriptomic analysis to investigate microtuber development and identified several differentially expressed genes, with a particular focus on ribosomal proteins-RPL11, RPL29, RPL40 and RPL17. Our results reveal, by protein-protein interaction (PPI) network analyses, performed with the highest confidence in the STRING database platform (v11.5), the critical involvement of these ribosomal proteins in microtuber development, and highlighted their interaction with PEBP family members as potential microtuber activators. The elucidation of the molecular biological mechanisms governing ribosomal proteins will help improve the resilience of potato crops in the face of today's changing climatic conditions.
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Affiliation(s)
- Eliana Valencia-Lozano
- Departamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Irapuato 36824, Guanajuato, Mexico
| | - Lisset Herrera-Isidrón
- Unidad Profesional Interdisciplinaria de Ingeniería Campus Guanajuato (UPIIG), Instituto Politécnico Nacional, Av. Mineral de Valenciana 200, Puerto Interior, Silao de la Victoria 36275, Guanajuato, Mexico
| | - Jorge Abraham Flores-López
- Unidad Profesional Interdisciplinaria de Ingeniería Campus Guanajuato (UPIIG), Instituto Politécnico Nacional, Av. Mineral de Valenciana 200, Puerto Interior, Silao de la Victoria 36275, Guanajuato, Mexico
| | - Osiel Salvador Recoder-Meléndez
- Unidad Profesional Interdisciplinaria de Ingeniería Campus Guanajuato (UPIIG), Instituto Politécnico Nacional, Av. Mineral de Valenciana 200, Puerto Interior, Silao de la Victoria 36275, Guanajuato, Mexico
| | - Braulio Uribe-López
- Unidad Profesional Interdisciplinaria de Ingeniería Campus Guanajuato (UPIIG), Instituto Politécnico Nacional, Av. Mineral de Valenciana 200, Puerto Interior, Silao de la Victoria 36275, Guanajuato, Mexico
| | - Aarón Barraza
- CONACYT-Centro de Investigaciones Biológicas del Noreste, SC., Instituto Politécnico Nacional 195, Playa Palo de Santa Rita Sur, La Paz CP 23096, Baja California Sur, Mexico
| | - José Luis Cabrera-Ponce
- Departamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Irapuato 36824, Guanajuato, Mexico
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Ponce OP, Torres Y, Prashar A, Buell R, Lozano R, Orjeda G, Compton L. Transcriptome profiling shows a rapid variety-specific response in two Andigenum potato varieties under drought stress. FRONTIERS IN PLANT SCIENCE 2022; 13:1003907. [PMID: 36237505 PMCID: PMC9551401 DOI: 10.3389/fpls.2022.1003907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 09/06/2022] [Indexed: 06/16/2023]
Abstract
Potato is a drought-sensitive crop whose global sustainable production is threatened by alterations in water availability. Whilst ancestral Solanum tuberosum Andigenum landraces retain wild drought tolerance mechanisms, their molecular bases remain poorly understood. In this study, an aeroponic growth system was established to investigate stress responses in leaf and root of two Andigenum varieties with contrasting drought tolerance. Comparative transcriptome analysis revealed widespread differences in the response of the two varieties at early and late time points of exposure to drought stress and in the recovery after rewatering. Major differences in the response of the two varieties occurred at the early time point, suggesting the speed of response is crucial. In the leaves and roots of the tolerant variety, we observed rapid upregulation of ABA-related genes, which did not occur until later in the susceptible variety and indicated not only more effective ABA synthesis and mobilization, but more effective feedback regulation to limit detrimental effects of too much ABA. Roots of both varieties showed differential expression of genes involved in cell wall reinforcement and remodeling to maintain cell wall strength, hydration and growth under drought stress, including genes involved in lignification and wall expansion, though the response was stronger in the tolerant variety. Such changes in leaf and root may help to limit water losses in the tolerant variety, while limiting the reduction in photosynthetic rate. These findings provide insights into molecular bases of drought tolerance mechanisms and pave the way for their reintroduction into modern cultivars with improved resistance to drought stress and yield stability under drought conditions.
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Affiliation(s)
| | - Yerisf Torres
- Department of Plant Science, Wageningen University, Wageningen, Netherlands
- Unidad de genómica, Laboratorios de Investigación y Desarrollo (LID), Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Ankush Prashar
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Robin Buell
- Department of Crop & Soil Sciences, Institute for Plant Breeding, Genetics & Genomics, Center for Applied Genetic Technology, University of Georgia, Athens, GA, United States
| | - Roberto Lozano
- Unidad de genómica, Laboratorios de Investigación y Desarrollo (LID), Universidad Peruana Cayetano Heredia, Lima, Peru
- Digital Science and Technology Department, Joyn Bio LLC, Boston, MA, United States
| | - Gisella Orjeda
- Faculty of Biological Sciences, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Lindsey Compton
- School of Biosciences, University of Birmingham, Birmingham, United Kingdom
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Songsomboon K, Brenton Z, Heuser J, Kresovich S, Shakoor N, Mockler T, Cooper EA. Genomic patterns of structural variation among diverse genotypes of Sorghum bicolor and a potential role for deletions in local adaptation. G3-GENES GENOMES GENETICS 2021; 11:6265466. [PMID: 33950177 PMCID: PMC8495935 DOI: 10.1093/g3journal/jkab154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 04/23/2021] [Indexed: 12/04/2022]
Abstract
Genomic structural mutations, especially deletions, are an important source of variation in many species and can play key roles in phenotypic diversification and evolution. Previous work in many plant species has identified multiple instances of structural variations (SVs) occurring in or near genes related to stress response and disease resistance, suggesting a possible role for SVs in local adaptation. Sorghum [Sorghum bicolor (L.) Moench] is one of the most widely grown cereal crops in the world. It has been adapted to an array of different climates as well as bred for multiple purposes, resulting in a striking phenotypic diversity. In this study, we identified genome-wide SVs in the Biomass Association Panel, a collection of 347 diverse sorghum genotypes collected from multiple countries and continents. Using Illumina-based, short-read whole-genome resequencing data from every genotype, we found a total of 24,648 SVs, including 22,359 deletions. The global site frequency spectrum of deletions and other types of SVs fit a model of neutral evolution, suggesting that the majority of these mutations were not under any types of selection. Clustering results based on single nucleotide polymorphisms separated the genotypes into eight clusters which largely corresponded with geographic origins, with many of the large deletions we uncovered being unique to a single cluster. Even though most deletions appeared to be neutral, a handful of cluster-specific deletions were found in genes related to biotic and abiotic stress responses, supporting the possibility that at least some of these deletions contribute to local adaptation in sorghum.
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Affiliation(s)
- Kittikun Songsomboon
- Department of Bioinformatics and Genomics, University of North Carolina at Charlotte, Charlotte, NC, 28223 USA.,North Carolina Research Campus, Kannapolis, NC 28081 USA
| | - Zachary Brenton
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC, 29634 USA
| | - James Heuser
- Department of Bioinformatics and Genomics, University of North Carolina at Charlotte, Charlotte, NC, 28223 USA.,North Carolina Research Campus, Kannapolis, NC 28081 USA
| | - Stephen Kresovich
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC, 29634 USA
| | - Nadia Shakoor
- Donald Danforth Plant Science Center, St. Louis, MO, 63132 USA
| | - Todd Mockler
- Donald Danforth Plant Science Center, St. Louis, MO, 63132 USA
| | - Elizabeth A Cooper
- Department of Bioinformatics and Genomics, University of North Carolina at Charlotte, Charlotte, NC, 28223 USA.,North Carolina Research Campus, Kannapolis, NC 28081 USA
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Yu G, Li J, Sun X, Liu Y, Wang X, Zhang H, Pan H. Exploration for the Salinity Tolerance-Related Genes from Xero-Halophyte Atriplex canescens Exploiting Yeast Functional Screening System. Int J Mol Sci 2017; 18:ijms18112444. [PMID: 29149055 PMCID: PMC5713411 DOI: 10.3390/ijms18112444] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/13/2017] [Accepted: 11/15/2017] [Indexed: 12/22/2022] Open
Abstract
Plant productivity is limited by salinity stress, both in natural and agricultural systems. Identification of salt stress-related genes from halophyte can provide insights into mechanisms of salt stress tolerance in plants. Atriplex canescens is a xero-halophyte that exhibits optimum growth in the presence of 400 mM NaCl. A cDNA library derived from highly salt-treated A. canescens plants was constructed based on a yeast expression system. A total of 53 transgenic yeast clones expressing enhanced salt tolerance were selected from 10⁵ transformants. Their plasmids were sequenced and the gene characteristics were annotated using a BLASTX search. Retransformation of yeast cells with the selected plasmids conferred salt tolerance to the resulting transformants. The expression patterns of 28 of these stress-related genes were further investigated in A. canescens leaves by quantitative reverse transcription-PCR. In this study, we provided a rapid and robust assay system for large-scale screening of genes for varied abiotic stress tolerance with high efficiency in A. canescens.
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Affiliation(s)
- Gang Yu
- College of Plant Sciences, Jilin University, Changchun 130062, China.
| | - Jingtao Li
- College of Plant Sciences, Jilin University, Changchun 130062, China.
| | - Xinhua Sun
- College of Plant Sciences, Jilin University, Changchun 130062, China.
| | - Yanzhi Liu
- College of Plant Sciences, Jilin University, Changchun 130062, China.
| | - Xueliang Wang
- College of Plant Sciences, Jilin University, Changchun 130062, China.
| | - Hao Zhang
- College of Resource and Environment, Jilin Agricultural University, Changchun 130062, China.
| | - Hongyu Pan
- College of Plant Sciences, Jilin University, Changchun 130062, China.
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Li H, Wei JC. Functional analysis of thioredoxin from the desert lichen-forming fungus, Endocarpon pusillum Hedwig, reveals its role in stress tolerance. Sci Rep 2016; 6:27184. [PMID: 27251605 PMCID: PMC4890037 DOI: 10.1038/srep27184] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 05/13/2016] [Indexed: 01/05/2023] Open
Abstract
Endocarpon pusillum is a lichen-forming fungus with an outstanding stress resistance property closely related to its antioxidant system. In this study, thioredoxin (Trx), one of the main components of antioxidant defense systems in E. pusillum (EpTrx), was characterized and analyzed both in transgenic yeasts and in vitro. Our analyses identified that the heterologous expression of EpTrx in the yeast Pichia pastoris significantly enhanced its resistance to osmotic and oxidative stresses. Assays in vitro showed EpTrx acted as a disulfide reductase as well as a molecular chaperone by assembling into various polymeric structures. Upon exposure to heat-shock stress, EpTrx exhibited weaker disulfide reductase activity but stronger chaperone activity, which coincided with the switching of the protein complexes from low molecular weight forms to high molecular weight complexes. Specifically, we found that Cys31 near but not at the active site was crucial in promoting the structural and functional transitions, most likely by accelerating the formation of intermolecular disulfide bond. Transgenic Saccharomyces cerevisiae harboring the native EpTrx exhibited stronger tolerance to oxidative, osmotic and high temperature stresses than the corresponding yeast strain containing the mutant EpTrx (C31S). Our results provide the first molecular evidence on how Trx influences stress response in lichen-forming fungi.
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Affiliation(s)
- Hui Li
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiang-Chun Wei
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Chen Y, Zong J, Tan Z, Li L, Hu B, Chen C, Chen J, Liu J. Systematic mining of salt-tolerant genes in halophyte-Zoysia matrella through cDNA expression library screening. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2015; 89:44-52. [PMID: 25689412 DOI: 10.1016/j.plaphy.2015.02.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 02/10/2015] [Indexed: 06/04/2023]
Abstract
Though a large number of salt-tolerant genes were identified from Glycophyte in previous study, genes involved in salt-tolerance of halophyte were scarcely studied. In this report, an important halophyte turfgrass, Zoysia matrella, was used for systematic excavation of salt-tolerant genes using full-length cDNA expression library in yeast. Adopting the Gateway-compatible vector system, a high quality entry library was constructed, containing 3 × 10(6) clones with an average inserted fragments length of 1.64 kb representing a 100% full-length rate. The yeast expression library was screened in a salt-sensitive yeast mutant. The screening yielded dozens of salt-tolerant clones harboring 16 candidate salt-tolerant genes. Under salt-stress condition, these 16 genes exhibited different transcription levels. According to the results, we concluded that the salt-tolerance of Z. matrella might result from known genes involved in ion regulation, osmotic adjustment, as well as unknown pathway associated with protein folding and modification, RNA metabolism, and mitochondrial membrane translocase, etc. In addition, these results shall provide new insight for the future researches with respect to salt-tolerance.
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Affiliation(s)
- Yu Chen
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Institute of Botany, Jiangsu Province & Chinese Academy of Sciences, Nanjing 210014, China; College of Ago-grassland Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Junqin Zong
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Institute of Botany, Jiangsu Province & Chinese Academy of Sciences, Nanjing 210014, China
| | - Zhiqun Tan
- College of Ago-grassland Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Lanlan Li
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Institute of Botany, Jiangsu Province & Chinese Academy of Sciences, Nanjing 210014, China
| | - Baoyun Hu
- College of Ago-grassland Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Chuanming Chen
- College of Ago-grassland Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Jingbo Chen
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Institute of Botany, Jiangsu Province & Chinese Academy of Sciences, Nanjing 210014, China
| | - Jianxiu Liu
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Institute of Botany, Jiangsu Province & Chinese Academy of Sciences, Nanjing 210014, China.
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