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De Caroli M, Perrotta C, Rampino P. Development of a Whole-Cell System Based on the Use of Genetically Modified Protoplasts to Detect Nickel Ions in Food Matrices. Int J Mol Sci 2024; 25:6090. [PMID: 38892274 PMCID: PMC11172630 DOI: 10.3390/ijms25116090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024] Open
Abstract
Heavy metals are dangerous contaminants that constitute a threat to human health because they persist in soils and are easily transferred into the food chain, causing damage to human health. Among heavy metals, nickel appears to be one of the most dangerous, being responsible for different disorders. Public health protection requires nickel detection in the environment and food chains. Biosensors represent simple, rapid, and sensitive methods for detecting nickel contamination. In this paper, we report on the setting up a whole-cell-based system, in which protoplasts, obtained from Nicotiana tabacum leaves, were used as transducers to detect the presence of heavy metal ions and, in particular, nickel ions. Protoplasts were genetically modified with a plasmid containing the Green Fluorescent Protein reporter gene (GFP) under control of the promoter region of a sunflower gene coding for a small Heat Shock Protein (HSP). Using this device, the presence of heavy metal ions was detected. Thus, the possibility of using this whole-cell system as a novel tool to detect the presence of nickel ions in food matrices was assessed.
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Affiliation(s)
- Monica De Caroli
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Monteroni 165, 73100 Lecce, Italy; (M.D.C.); (C.P.)
- NBFC National Biodiversity Future Center, 90133 Palermo, Italy
| | - Carla Perrotta
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Monteroni 165, 73100 Lecce, Italy; (M.D.C.); (C.P.)
| | - Patrizia Rampino
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Monteroni 165, 73100 Lecce, Italy; (M.D.C.); (C.P.)
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Comastri A, Janni M, Simmonds J, Uauy C, Pignone D, Nguyen HT, Marmiroli N. Heat in Wheat: Exploit Reverse Genetic Techniques to Discover New Alleles Within the Triticum durum sHsp26 Family. FRONTIERS IN PLANT SCIENCE 2018; 9:1337. [PMID: 30283469 PMCID: PMC6156267 DOI: 10.3389/fpls.2018.01337] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 08/24/2018] [Indexed: 05/21/2023]
Abstract
Wheat breeding nowadays must address producers and consumers' desire. According to the last FAO report, a dramatic decrease in wheat production is expected in the next decades mainly due to the upcoming climate change. The identification of the processes which are triggered by heat stress and how thermotolerance develops in wheat is an active research topic. Genomic approach may help wheat breeding since it allows direct study on the genotype and relationship with the phenotype. Here the isolation and characterization of four members of the chloroplast-localized small heat shock proteins (sHSP) encoded by the Hsp26 gene family is reported. Furthermore, two high throughput TILLING (Targeting Induced Local Lesions In Genomes) approaches in vivo and in silico were used for the identification of new alleles within this family. Small heat shock proteins are known to prevent the irreversible aggregation of misfolded proteins and contribute to the acquisition of thermotolerance. Chloroplast-localized sHSPs protect the photosynthetic machinery during episodes of high temperature stress. The modulation of the newly discovered genes within the sHsp26 family has been analyzed in vivo and by the ExpVIP platform widening the abiotic stress analysis; and their involvement in the heat stress response has been demonstrated. In addition, in this study a total of 50 TILLING mutant lines have been identified. A set of KASP (Kompetitive Allele Specific PCR) markers was also developed to follow the specific mutations in the ongoing backcrosses, applicable to high throughput genotyping approaches and usable in marker assisted selection breeding programs.
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Affiliation(s)
- Alessia Comastri
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Michela Janni
- Department of DiSBA, CNR, Institute of Bioscience and Bioresources, Bari, Italy
- Department of DiTET, CNR, Institute of Materials for Electronics and Magnetism, Parma, Italy
- *Correspondence: Michela Janni
| | - James Simmonds
- John Innes Centre, Norwich Research Park, Norwich, United Kingdom
| | - Cristobal Uauy
- John Innes Centre, Norwich Research Park, Norwich, United Kingdom
| | - Domenico Pignone
- Department of DiSBA, CNR, Institute of Bioscience and Bioresources, Bari, Italy
| | - Henry T. Nguyen
- Division of Plant Sciences, University of Missouri, Columbia, MO, United States
| | - Nelson Marmiroli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
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Tayeh N, Bahrman N, Sellier H, Bluteau A, Blassiau C, Fourment J, Bellec A, Debellé F, Lejeune-Hénaut I, Delbreil B. A tandem array of CBF/DREB1 genes is located in a major freezing tolerance QTL region on Medicago truncatula chromosome 6. BMC Genomics 2013; 14:814. [PMID: 24261852 PMCID: PMC4046650 DOI: 10.1186/1471-2164-14-814] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 11/04/2013] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Freezing provokes severe yield losses to different fall-sown annual legumes. Understanding the molecular bases of freezing tolerance is of great interest for breeding programs. Medicago truncatula Gaertn. is an annual temperate forage legume that has been chosen as a model species for agronomically and economically important legume crops. The present study aimed to identify positional candidate genes for a major freezing tolerance quantitative trait locus that was previously mapped to M. truncatula chromosome 6 (Mt-FTQTL6) using the LR3 population derived from a cross between the freezing-tolerant accession F83005-5 and the freezing-sensitive accession DZA045-5. RESULTS The confidence interval of Mt-FTQTL6 was narrowed down to the region comprised between markers MTIC153 and NT6054 using recombinant F7 and F8 lines. A bacterial-artificial chromosome (BAC) clone contig map was constructed in an attempt to close the residual assembly gap existing therein. Twenty positional candidate genes including twelve C-repeat binding factor (CBF)/dehydration-responsive element binding factor 1 (DREB1) genes were identified from BAC-derived sequences and whole-genome shotgun sequences (WGS). CBF/DREB1 genes are organized in a tandem array within an approximately 296-Kb region. Eleven CBF/DREB1 genes were isolated and sequenced from F83005-5 and DZA045-5 which revealed high polymorphism among these accessions. Unique features characterizing CBF/DREB1 genes from M. truncatula, such as alternative splicing and large tandem duplication, are elucidated for the first time. CONCLUSIONS Overall, twenty genes were identified as potential candidates to explain Mt-FTQTL6 effect. Their future functional characterization will uncover the gene(s) involved in freezing tolerance difference observed between F83005-5 and DZA045-5. Knowledge transfer for breeding improvement of crop legumes is expected. Furthermore, CBF/DREB1 related data will certainly have a large impact on research studies targeting this group of transcriptional activators in M. truncatula and other legume species.
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Affiliation(s)
- Nadim Tayeh
- />Université Lille 1, UMR 1281 Stress Abiotiques et Différenciation des Végétaux cultivés (SADV), Bâtiment SN2, F-59655 Villeneuve d’Ascq Cedex, France
| | - Nasser Bahrman
- />Université Lille 1, UMR 1281 Stress Abiotiques et Différenciation des Végétaux cultivés (SADV), Bâtiment SN2, F-59655 Villeneuve d’Ascq Cedex, France
- />INRA, UMR 1281 Stress Abiotiques et Différenciation des Végétaux cultivés (SADV), Estrées-Mons, BP 50136, F-80203 Péronne Cedex, France
| | - Hélène Sellier
- />INRA, UMR 1281 Stress Abiotiques et Différenciation des Végétaux cultivés (SADV), Estrées-Mons, BP 50136, F-80203 Péronne Cedex, France
| | - Aurélie Bluteau
- />Université Lille 1, UMR 1281 Stress Abiotiques et Différenciation des Végétaux cultivés (SADV), Bâtiment SN2, F-59655 Villeneuve d’Ascq Cedex, France
- />INRA, UMR 1281 Stress Abiotiques et Différenciation des Végétaux cultivés (SADV), Estrées-Mons, BP 50136, F-80203 Péronne Cedex, France
| | - Christelle Blassiau
- />Université Lille 1, UMR 1281 Stress Abiotiques et Différenciation des Végétaux cultivés (SADV), Bâtiment SN2, F-59655 Villeneuve d’Ascq Cedex, France
| | - Joëlle Fourment
- />INRA, Centre National de Ressources Génomiques Végétales (CNRGV), BP 52627, F-31326 Castanet-Tolosan Cedex, France
| | - Arnaud Bellec
- />INRA, Centre National de Ressources Génomiques Végétales (CNRGV), BP 52627, F-31326 Castanet-Tolosan Cedex, France
| | - Frédéric Debellé
- />INRA/CNRS, UMR 441/2594, Laboratoire des Interactions Plantes-Microorganismes (LIPM), BP 52627, F-31326 Castanet-Tolosan Cedex, France
| | - Isabelle Lejeune-Hénaut
- />INRA, UMR 1281 Stress Abiotiques et Différenciation des Végétaux cultivés (SADV), Estrées-Mons, BP 50136, F-80203 Péronne Cedex, France
| | - Bruno Delbreil
- />Université Lille 1, UMR 1281 Stress Abiotiques et Différenciation des Végétaux cultivés (SADV), Bâtiment SN2, F-59655 Villeneuve d’Ascq Cedex, France
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Waters ER. The evolution, function, structure, and expression of the plant sHSPs. JOURNAL OF EXPERIMENTAL BOTANY 2013; 64:391-403. [PMID: 23255280 DOI: 10.1093/jxb/ers355] [Citation(s) in RCA: 210] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Small heat shock proteins are a diverse, ancient, and important family of proteins. All organisms possess small heat shock proteins (sHSPs), indicating that these proteins evolved very early in the history of life prior to the divergence of the three domains of life (Archaea, Bacteria, and Eukarya). Comparing the structures of sHSPs from diverse organisms across these three domains reveals that despite considerable amino acid divergence, many structural features are conserved. Comparisons of the sHSPs from diverse organisms reveal conserved structural features including an oligomeric form with a β-sandwich that forms a hollow ball. This conservation occurs despite significant divergence in primary sequences. It is well established that sHSPs are molecular chaperones that prevent misfolding and irreversible aggregation of their client proteins. Most notably, the sHSPs are extremely diverse and variable in plants. Some plants have >30 individual sHSPs. Land plants, unlike other groups, possess distinct sHSP subfamilies. Most are highly up-regulated in response to heat and other stressors. Others are selectively expressed in seeds and pollen, and a few are constitutively expressed. As a family, sHSPs have a clear role in thermotolerance, but attributing specific effects to individual proteins has proved challenging. Considerable progress has been made during the last 15 years in understanding the sHSPs. However, answers to many important questions remain elusive, suggesting that the next 15 years will be at least equally rewarding.
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Affiliation(s)
- Elizabeth R Waters
- Department of Biology, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA.
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Sun L, Liu Y, Kong X, Zhang D, Pan J, Zhou Y, Wang L, Li D, Yang X. ZmHSP16.9, a cytosolic class I small heat shock protein in maize (Zea mays), confers heat tolerance in transgenic tobacco. PLANT CELL REPORTS 2012; 31:1473-84. [PMID: 22534681 DOI: 10.1007/s00299-012-1262-8] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Revised: 02/15/2012] [Accepted: 04/02/2012] [Indexed: 05/21/2023]
Abstract
UNLABELLED Various organisms produce HSPs in response to high temperature and other stresses. The function of heat shock proteins, including small heat shock protein (sHSP), in stress tolerance is not fully explored. To improve our understanding of sHSPs, we isolated ZmHSP16.9 from maize. Sequence alignments and phylogenetic analysis reveal this to be a cytosolic class I sHSP. ZmHSP16.9 expressed in root, leaf and stem tissues under 40 °C treatment, and was up-regulated by heat stress and exogenous H₂O₂. Overexpression of ZmHSP16.9 in transgenic tobacco conferred tolerance to heat and oxidative stresses by increased seed germination rate, root length, and antioxidant enzyme activities compared with WT plants. These results support the positive role of ZmHSP16.9 in response to heat stress in plant. KEY MESSAGE The overexpression of ZmHSP16.9 enhanced tolerance to heat and oxidative stress in transgenic tobacco.
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Affiliation(s)
- Liping Sun
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 61 Daizong Street, Tai'an 271018, Shandong, China
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Bondino HG, Valle EM, Ten Have A. Evolution and functional diversification of the small heat shock protein/α-crystallin family in higher plants. PLANTA 2012; 235:1299-313. [PMID: 22210597 DOI: 10.1007/s00425-011-1575-9] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2011] [Accepted: 12/07/2011] [Indexed: 05/03/2023]
Abstract
Small heat shock proteins (sHSPs) are chaperones that play an important role in stress tolerance. They consist of an alpha-crystallin domain (ACD) flanked by N- and C-terminal regions. However, not all proteins that contain an ACD, hereafter referred to as ACD proteins, are sHSPs because certain ACD proteins are known to have different functions. Furthermore, since not all ACD proteins have been identified yet, current classifications are incomplete. A total of 17 complete plant proteomes were screened for the presence of ACD proteins by HMMER profiling and the identified ACD protein sequences were classified by maximum likelihood phylogeny. Differences among and within groups were analysed, and levels of functional constraint were determined. There are 29 different classes of ACD proteins, eight of which contain classical sHSPs and five likely chaperones. The other classes contain proteins with uncharacterised or poorly characterised functions. N- and C-terminal sequences are conserved within the phylogenetic classes. Phylogenetics suggests a single duplication of the CI sHSP ancestor that occurred prior to the speciation of mono- and dicotyledons. This was followed by a number of more recent duplications that resulted in the presence of many paralogues. The results suggest that N- and C-terminal sequences of sHSPs play a role in class-specific functionality and that non-sHSP ACD proteins have conserved but unexplored functions, which are mainly determined by subsequences other than that of the ACD.
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Affiliation(s)
- Hernán Gabriel Bondino
- Facultad de Ciencias Exactas y Naturales, Instituto de Investigaciones Biológicas-IIB-CONICET-UNMdP, Universidad Nacional de Mar del Plata, CC 1245, 7600 Mar del Plata, Argentina
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