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Caldara M, Gullì M, Graziano S, Riboni N, Maestri E, Mattarozzi M, Bianchi F, Careri M, Marmiroli N. Microbial consortia and biochar as sustainable biofertilisers: Analysis of their impact on wheat growth and production. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 917:170168. [PMID: 38244628 DOI: 10.1016/j.scitotenv.2024.170168] [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: 09/05/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/22/2024]
Abstract
The European Union is among the top wheat producers in the world, but its productivity relies on adequate soil fertilisation. Biofertilisers, either alone or in combination with biochar, can be a preferable alternative to chemical fertilisers. However, the addition of biofertilisers, specifically plant growth promoting microbes (PGPM), could modify grain composition, and/or deteriorate the soil composition. In this study, the two wheat cultivars Triticum aestivum (Bramante) and T. durum (Svevo) were cultivated in open fields for two consecutive years in the presence of a commercial PGPM mix supplied alone or in combination with biochar. An in-depth analysis was conducted by collecting physiological and agronomic data throughout the growth period. The effects of PGPM and biochar were investigated in detail; specifically, soil chemistry and rhizosphere microbial composition were characterized, along with the treatment effects on seed storage proteins. The results demonstrated that the addition of commercial microbial consortia and biochar, alone or in combination, did not modify the rhizospheric microbial community; however, it increased grain yield, especially in the cultivar Svevo (increase of 6.8 %-13.6 %), even though the factors driving the most variations were associated with both climate and cultivar. The total gluten content of the flours was not affected, whereas the main effect of the treatments was a variation in gliadins and low-molecular-weight-glutenin subunits in both cultivars when treated with PGPM and biochar. This suggested improved grain quality, especially regarding the viscoelastic properties of the dough, when the filling period occurred in a dry climate. The results indicate that the application of biofertilisers and biochar may aid the effective management of sustainable wheat cultivation, to support environmental health without altering the biodiversity of the resident microbiome.
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Affiliation(s)
- Marina Caldara
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy
| | - Mariolina Gullì
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy; Interdepartmental Center SITEIA.PARMA, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy
| | - Sara Graziano
- Interdepartmental Center SITEIA.PARMA, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy
| | - Nicolò Riboni
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy
| | - Elena Maestri
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy; Interdepartmental Center SITEIA.PARMA, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy; National Interuniversity Consortium for Environmental Sciences (CINSA), Parco Area delle Scienze, 43124 Parma, Italy
| | - Monica Mattarozzi
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy; Interdepartmental Center SITEIA.PARMA, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy
| | - Federica Bianchi
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy; Interdepartmental Center CIDEA, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy
| | - Maria Careri
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy; Interdepartmental Center SITEIA.PARMA, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy
| | - Nelson Marmiroli
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy; Interdepartmental Center SITEIA.PARMA, University of Parma, Parco Area delle Scienze, 43124 Parma, Italy; National Interuniversity Consortium for Environmental Sciences (CINSA), Parco Area delle Scienze, 43124 Parma, Italy.
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Comparative Characterization of Grain Protein Content and Composition by Chromatography-Based Separation Methods (SE-HPLC and RP-HPLC) of Ten Wheat Varieties Grown in Different Agro-Ecological Zones of Algeria. SEPARATIONS 2022. [DOI: 10.3390/separations9120443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
To characterize and compare the protein quality of ten durum wheat genotypes grown under three cropping modalities in Algeria (subhumid in Algiers, subhumid-semiarid in Constantine, and semiarid in Sétif), the protein profile of their kernels was performed by High-Performance Liquid Chromatography (SE-HPLC and RP-HPLC). The “variety” factor has a major impact, mainly on the insoluble fraction (Fi), on the gliadin/glutenin ratio, on the large and small glutenin aggregates (F1 and F2, respectively), and on ω-gliadins and high molecular weight albumins (F3). Conversely, the total protein content and the albumin-globulin fraction (F5) depend mainly on the environment. The α- β- and γ-gliadins (F4) are equally dependent on variety and environment. The subhumid-semiarid agroecological conditions of Constantine (SH-SA) favored an important accumulation of proteins (14.1%), particularly by an increased synthesis of omega gliadins and high-molecular-weight glutenin subunits (HMW-GS), compared to those of Algiers (SH) and Sétif (SA). For these latter environments, metabolic-type proteins are predominant, reflected in a higher F5 fraction (p < 0.05) (albumin and globulin), and significantly more alpha-beta and gamma gliadins. The use of chromatographic analyses to characterize wheat genotypes remains a reliable tool for breeding and variety promotion programs and can provide a better understanding of the ecophysiology of cereal crops.
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Poggi GM, Aloisi I, Corneti S, Esposito E, Naldi M, Fiori J, Piana S, Ventura F. Climate change effects on bread wheat phenology and grain quality: A case study in the north of Italy. FRONTIERS IN PLANT SCIENCE 2022; 13:936991. [PMID: 36017264 PMCID: PMC9396297 DOI: 10.3389/fpls.2022.936991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Increasing temperatures, heat waves, and reduction of annual precipitation are all the expressions of climate change (CC), strongly affecting bread wheat (Triticum aestivum L.) grain yield in Southern Europe. Being temperature the major driving force of plants' phenological development, these variations also have effects on wheat phenology, with possible consequences on grain quality, and gluten protein accumulation. Here, through a case study in the Bolognese Plain (North of Italy), we assessed the effects of CC in the area, the impacts on bread wheat phenological development, and the consequences on grain gluten quality. The increasing trend in mean annual air temperature in the area since 1952 was significant, with a breakpoint identified in 1989, rising from 12.7 to 14.1°C, accompanied by the signals of increasing aridity, i.e., increase in water table depth. Bread wheat phenological development was compared in two 15-year periods before and after the breakpoint, i.e., 1952-1966 (past period), and 2006-2020 (present period), the latest characterized by aridity and increased temperatures. A significant shortening of the chronological time necessary to reach the main phenological phases was observed for the present period compared to the past period, finally shortening the whole life cycle. This reduction, as well as the higher temperature regime, affected gluten accumulation during the grain-filling process, as emerged analyzing gluten composition in grain samples of the same variety harvested in the area both before and after the breakpoint in temperature. In particular, the proportion of gluten polymers (i.e., gliadins, high and low molecular weight glutenins, and their ratio) showed a strong and significant correlation with cumulative growing degree days (CGDDs) accumulated during the grain filling. Higher CGDD values during the period, typical of CC in Southern Europe, accounting for higher temperature and faster grain filling, correlated with gliadins, high molecular weight glutenins, and their proportion with low molecular weight glutenins. In summary, herein reported, data might contribute to assessing the effects of CC on wheat phenology and quality, representing a tool for both predictive purposes and decision supporting systems for farmers, as well as can guide future breeding choices for varietal innovation.
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Affiliation(s)
- Giovanni Maria Poggi
- Department of Biological, Geological and Environmental Sciences (BiGeA), Alma Mater Studiorum—University of Bologna, Bologna, Italy
- Department of Agricultural and Food Sciences (DISTAL), Alma Mater Studiorum—University of Bologna, Bologna, Italy
| | - Iris Aloisi
- Department of Biological, Geological and Environmental Sciences (BiGeA), Alma Mater Studiorum—University of Bologna, Bologna, Italy
| | - Simona Corneti
- Department of Biological, Geological and Environmental Sciences (BiGeA), Alma Mater Studiorum—University of Bologna, Bologna, Italy
| | - Erika Esposito
- Scientific Institute for Research, Hospitalization and Healthcare (IRCCS), Institute of Neurological Sciences of Bologna (ISNB), Bologna, Italy
| | - Marina Naldi
- Department of Pharmacy and Biotechnology (FaBit), Alma Mater Studiorum—University of Bologna, Bologna, Italy
| | - Jessica Fiori
- Department of Chemistry “G. Ciamician”, Alma Mater Studiorum—University of Bologna, Bologna, Italy
| | - Stefano Piana
- Department of Agricultural and Food Sciences (DISTAL), Alma Mater Studiorum—University of Bologna, Bologna, Italy
| | - Francesca Ventura
- Department of Agricultural and Food Sciences (DISTAL), Alma Mater Studiorum—University of Bologna, Bologna, Italy
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Chunduri V, Kaur A, Kaur S, Kumar A, Sharma S, Sharma N, Singh P, Kapoor P, Kaur S, Kumari A, Roy J, Kaur J, Garg M. Gene Expression and Proteomics Studies Suggest an Involvement of Multiple Pathways Under Day and Day-Night Combined Heat Stresses During Grain Filling in Wheat. FRONTIERS IN PLANT SCIENCE 2021; 12:660446. [PMID: 34135923 PMCID: PMC8200777 DOI: 10.3389/fpls.2021.660446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
Recent weather fluctuations imposing heat stress at the time of wheat grain filling cause frequent losses in grain yield and quality. Field-based studies for understanding the effect of terminal heat stress on wheat are complicated by the effect of multiple confounding variables. In the present study, the effect of day and day-night combined heat stresses during the grain-filling stage was studied using gene expression and proteomics approaches. The gene expression analysis was performed by using real-time quantitative PCR (RT-qPCR). The expression of genes related to the starch biosynthetic pathway, starch transporters, transcription factors, and stress-responsive and storage proteins, at four different grain developmental stages, indicated the involvement of multiple pathways. Under the controlled conditions, their expression was observed until 28 days after anthesis (DAA). However, under the day stress and day-night stress, the expression of genes was initiated earlier and was observed until 14 DAA and 7 DAA, respectively. The protein profiles generated using two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) and matrix-assisted laser desorption/ionization time-of-flight mass spectroscopy (MALDI-TOF MS/MS) showed a differential expression of the proteins belonging to multiple pathways that included the upregulation of proteins related to the translation, gliadins, and low-molecular-weight (LMW) glutenins and the downregulation of proteins related to the glycolysis, photosynthesis, defense, and high-molecular-weight (HMW) glutenins. Overall, the defense response to the day heat stress caused early gene expression and day-night heat stress caused suppression of gene expression by activating multiple pathways, which ultimately led to the reduction in grain-filling duration, grain weight, yield, and processing quality.
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Affiliation(s)
- Venkatesh Chunduri
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Mohali, India
- Department of Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Amandeep Kaur
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Mohali, India
| | - Shubhpreet Kaur
- Department of Immunopathology, Post Graduate Institute of Medical and Education and Research, Chandigarh, India
| | - Aman Kumar
- School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, India
| | - Saloni Sharma
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Mohali, India
| | - Natasha Sharma
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Mohali, India
| | - Pargat Singh
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Mohali, India
| | - Payal Kapoor
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Mohali, India
| | - Satveer Kaur
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Mohali, India
| | - Anita Kumari
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Mohali, India
| | - Joy Roy
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Mohali, India
| | - Jaspreet Kaur
- Department of Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Monika Garg
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Mohali, India
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Asri N, Rostami-Nejad M, Anderson RP, Rostami K. The Gluten Gene: Unlocking the Understanding of Gluten Sensitivity and Intolerance. APPLICATION OF CLINICAL GENETICS 2021; 14:37-50. [PMID: 33603437 PMCID: PMC7886246 DOI: 10.2147/tacg.s276596] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 01/18/2021] [Indexed: 12/14/2022]
Abstract
Wheat flour is one of the most important food ingredients containing several essential nutrients including proteins. Gluten is one of the major protein components of wheat consisted of glutenin (encoded on chromosome 1) and gliadin (encoded on chromosome 1 and 6) and there are around hundred genes encoding it in wheat. Gluten proteins have the ability of eliciting the pathogenic immune responses and hypersensitivity reactions in susceptible individuals called “gluten-related disorders (GRDs)”, which include celiac disease (CD), wheat allergy (WA), and non-celiac gluten sensitivity (NCGS). Currently removing gluten from the diet is the only effective treatment for mentioned GRDs and studies for the appropriate and alternative therapeutic approaches are ongoing. Accordingly, several genetic studies have focused on breeding wheat with low immunological properties through gene editing methods. The present review considers genetic characteristics of gluten protein components, focusing on their role in the incidence of gluten-related diseases, and genetic modifications conducted to produce wheat with less immunological properties.
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Affiliation(s)
- Nastaran Asri
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Rostami-Nejad
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Robert P Anderson
- Wesley Medical Research - The Wesley Hospital, Brisbane, Queensland, Australia
| | - Kamran Rostami
- Department of Gastroenterology, MidCentral DHB, Palmerston North, New Zealand
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Tomás D, Coelho LP, Rodrigues JC, Viegas W, Silva M. Assessment of Four Portuguese Wheat Landrace Diversity to Cope With Global Warming. FRONTIERS IN PLANT SCIENCE 2020; 11:594977. [PMID: 33362824 PMCID: PMC7756116 DOI: 10.3389/fpls.2020.594977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 10/27/2020] [Indexed: 06/12/2023]
Abstract
Wheat is a dietary staple consumed worldwide strongly responsible for proteins and carbohydrate population intake. However, wheat production and quality will scarcely fulfill forward demands, which are compounded by high-temperature (HT) events as heatwaves, increasingly common in Portugal. Thus, landraces assume crucial importance as potential reservoirs of useful traits for wheat breeding and may be pre-adapted to extreme environmental conditions. This work evaluates four Portuguese landrace yield and grain composition through attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, particularly protein content, and their responses to HT treatment mimicking a heatwave. Landraces showed distinct yield traits, especially plant height and first spike grain number, and a similar pattern in FTIR spectra, although revealing differences in grain components' proportions. Comparison between spectra band intensity indicates that Ardito has the highest protein-related peaks, contrary to Magueija, which appears to be the landrace with higher lipid content. In plants submitted to 1 week of HT treatment 10 days after anthesis, the first spike grain size and weight were markedly reduced in all landraces. Additionally, it was observed that a general increase in grain protein content in the four landraces, being the increment observed in Ardito and Grécia, is statistically significant. The comparative assessment of control and HT average FTIR spectra denoted also the occurrence of alterations in grain polysaccharide composition. An integrated assessment of the evaluations performed revealed that Ardito and Magueija landraces presented diverse yield-related characteristics and distinct responses to cope with HT. In fact, the former landrace revealed considerable grain yield diminution along with an increase in grain protein proportion after HT, while the latter showed a significant increase in spikes and grain number, with grain quality detriment. These results reinforce the relevance of scrutinizing old genotype diversity seeking for useful characteristics, particularly considering HT impact on grain production and quality.
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Affiliation(s)
- Diana Tomás
- Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
| | - Luís Pinto Coelho
- Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
| | - José Carlos Rodrigues
- Centro de Estudos Florestais, Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
| | - Wanda Viegas
- Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
| | - Manuela Silva
- Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
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Graziano S, Marando S, Prandi B, Boukid F, Marmiroli N, Francia E, Pecchioni N, Sforza S, Visioli G, Gullì M. Technological Quality and Nutritional Value of Two Durum Wheat Varieties Depend on Both Genetic and Environmental Factors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:2384-2395. [PMID: 30742427 DOI: 10.1021/acs.jafc.8b06621] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Durum wheat ( Triticum turgidum L. subsp. durum (Desf.) Husn) is a major food source in Mediterranean countries since it is utilized for the production of pasta, leavened and unleavened breads, couscous, and other traditional foods. The technological and nutritional properties of durum wheat semolina depend mainly on the type of gluten proteins and on their amount, which is a genotype- and environment-dependent trait. Gluten proteins are also responsible for celiac disease (CD), an autoimmune enteropathy with a prevalence of about 0.7-2% in the human population. At this purpose, two Italian durum wheat cultivars, Saragolla and Cappelli, currently used for monovarietal pasta, were chosen to compare (i) the reserve and embryo proteome, (ii) the free and bound phenolics, antioxidant activity, and amino acid composition, and (iii) the content of immunogenic peptides produced after a simulated gastrointestinal digestion. The results obtained from 2 years of field cultivation on average showed a higher amount of gluten proteins, amino acids, and immunogenic peptides in Cappelli. Saragolla showed a higher abundance in bound phenolics, antioxidant enzymes, and stress response proteins in line with its higher antioxidant activity. However, the impact of the year of cultivation, largely depending on varying rainfall regimes through the wheat growth cycle, was significant for most of the parameters investigated. Differences in technological and nutritional characteristics observed between the two cultivars are discussed in relation to the influence of genetic and environmental factors.
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Affiliation(s)
- Sara Graziano
- Interdepartmental Center SITEIA.PARMA , University of Parma , Parco Area delle Scienze , 43124 Parma , Italy
| | - Silvia Marando
- Interdepartmental Center SITEIA.PARMA , University of Parma , Parco Area delle Scienze , 43124 Parma , Italy
| | - Barbara Prandi
- Department of Food and Drug , University of Parma , Parco Area delle Scienze 27/A , I-43124 Parma , Italy
| | - Fatma Boukid
- Interdepartmental Center SITEIA.PARMA , University of Parma , Parco Area delle Scienze , 43124 Parma , Italy
- Department of Food and Drug , University of Parma , Parco Area delle Scienze 27/A , I-43124 Parma , Italy
| | - Nelson Marmiroli
- Department of Chemistry, Life Sciences and Environmental Sustainability , University of Parma , Parco Area delle Scienze 11/A , 43124 Parma , Italy
| | - Enrico Francia
- Department of Life Sciences, Centre BIOGEST-SITEIA , University of Modena and Reggio Emilia , Piazzale Europa 1 , 42124 Reggio Emilia , Italy
| | - Nicola Pecchioni
- CREA, Council for Agricultural Research and Economics (CREA-CI) , S.S. 673 km 25,200 , I-71122 Foggia , Italy
| | - Stefano Sforza
- Interdepartmental Center SITEIA.PARMA , University of Parma , Parco Area delle Scienze , 43124 Parma , Italy
- Department of Food and Drug , University of Parma , Parco Area delle Scienze 27/A , I-43124 Parma , Italy
| | - Giovanna Visioli
- Department of Chemistry, Life Sciences and Environmental Sustainability , University of Parma , Parco Area delle Scienze 11/A , 43124 Parma , Italy
| | - Mariolina Gullì
- Interdepartmental Center SITEIA.PARMA , University of Parma , Parco Area delle Scienze , 43124 Parma , Italy
- Department of Chemistry, Life Sciences and Environmental Sustainability , University of Parma , Parco Area delle Scienze 11/A , 43124 Parma , Italy
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Adrianos S, Mattioni B, Tilley M. Confirmation of gluten-free status of wheatgrass (Triticum aestivum). QUALITY ASSURANCE AND SAFETY OF CROPS & FOODS 2017. [DOI: 10.3920/qas2015.0764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- S.L. Adrianos
- USDA-ARS, Center for Grain and Animal Health Research, 1515 College Avenue, Manhattan, KS 66502, USA
| | - B. Mattioni
- Laboratory of Cereals, Food Science and Technology Department, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - M. Tilley
- USDA-ARS, Center for Grain and Animal Health Research, 1515 College Avenue, Manhattan, KS 66502, USA
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Dizlek H, Özer M. Effects of sunn pest (Eurygaster integriceps) damage ratio on physical, chemical, and technological characteristics of wheat. QUALITY ASSURANCE AND SAFETY OF CROPS & FOODS 2016. [DOI: 10.3920/qas2015.0622] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- H. Dizlek
- Osmaniye Korkut Ata University, Faculty of Engineering, Department of Food Engineering, E Block, 80000 Osmaniye, Turkey
| | - M.S. Özer
- Çukurova University, Faculty of Agriculture, Department of Food Engineering, 01330 Adana, Turkey
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Başar Ş, Karaoğlu MM, Boz H. The Effects of Cephalaria Syriaca
Flour on the Quality of Sunn Pest (Eurygaster Integriceps
)-Damaged Wheat. J FOOD QUALITY 2015. [DOI: 10.1111/jfq.12176] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Şule Başar
- Food Engineering Department; Faculty of Engineering; Bayburt University; 69000 Bayburt Turkey
| | - M. Murat Karaoğlu
- Food Engineering Department; Faculty of Agriculture; Atatürk University; Erzurum Turkey
| | - Hüseyin Boz
- Gastronomy and Culinary Arts Department; Tourism Faculty; Atatürk University; Erzurum Turkey
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Altenbach SB, Tanaka CK, Seabourn BW. Silencing of omega-5 gliadins in transgenic wheat eliminates a major source of environmental variability and improves dough mixing properties of flour. BMC PLANT BIOLOGY 2014; 14:393. [PMID: 25539796 PMCID: PMC4307166 DOI: 10.1186/s12870-014-0393-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 12/19/2014] [Indexed: 05/19/2023]
Abstract
BACKGROUND The end-use quality of wheat flour varies as a result of the growth conditions of the plant. Among the wheat gluten proteins, the omega-5 gliadins have been identified as a major source of environmental variability, increasing in proportion in grain from plants that receive fertilizer or are subjected to high temperatures during grain development. The omega-5 gliadins also have been associated with the food allergy wheat-dependent exercise-induced anaphylaxis (WDEIA). Recently, transgenic lines with reduced levels of omega-5 gliadins were developed using RNA interference (RNAi). These lines make it possible to determine whether changes in the levels of omega-5 gliadins in response to environmental conditions and agronomic inputs may be responsible for changes in flour end-use quality. RESULTS Two transgenic wheat lines and a non-transgenic control were grown under a controlled temperature regimen with or without post-anthesis fertilizer and the protein composition of the resulting flour was analyzed by quantitative two-dimensional gel electrophoresis (2-DE). In one transgenic line, all 2-DE spots identified as omega-5 gliadins were substantially reduced without effects on other proteins. In the other transgenic line, the omega-5 gliadins were absent and there was a partial reduction in the levels of the omega-1,2 gliadins and the omega-1,2 chain-terminating gliadins as well as small changes in several other proteins. With the exception of the omega gliadins, the non-transgenic control and the transgenic plants showed similar responses to the fertilizer treatment. Protein contents of flour were determined by the fertilizer regimen and were similar in control and transgenic samples produced under each regimen while both mixing time and mixing tolerance were improved in flour from transgenic lines when plants received post-anthesis fertilizer. CONCLUSIONS The data indicate that omega-5 gliadins have a negative effect on flour quality and suggest that changes in quality with the growth environment may be due in part to alterations in the levels of the omega gliadins. Because a known food allergen and one of the major sources of environmentally-induced variation in wheat flour protein composition has been eliminated, the transgenic lines may yield flour with both improved end-use quality and more consistent functionality when grown in different locations.
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Affiliation(s)
- Susan B Altenbach
- USDA-ARS, Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA.
| | - Charlene K Tanaka
- USDA-ARS, Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA.
| | - Bradford W Seabourn
- USDA-ARS, Center for Grain and Animal Health Research, Hard Winter Wheat Quality Laboratory, 1515 College Avenue, Manhattan, KS, 66502, USA.
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Abstract
Abiotic stresses such as drought, salinity, waterlogging, and high temperature cause a myriad of changes in the metabolism of plants, and there is a lot of overlap in these changes in plants in response to different stresses such as drought and salinity. These stress-induced metabolic changes cause impaired crop growth thereby resulting in poor yield. The metabolic changes taking place in several plant species due to a particular abiotic stress have been revealed from the whole plant to the molecular level by researchers, but most studies have focused on organs such as leaf, stem, and root. Information on such stress-induced changes in seed or grains is infrequent in the literature. From the information that is available, it is now evident that abiotic stress can induce considerable changes in the composition and quality of cereal grains including those of wheat, the premier staple food crop in the world. Thus, the present review discusses how far different types of stresses, mainly salinity, drought, high temperature, and waterlogging, can alter the wheat grain composition and quality. By fully uncovering the stress-induced changes in the nutritional values of wheat grains it would be possible to establish whether balanced supplies of essential nutrients are available to the human population from the wheat crop grown on stress-affected areas.
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Affiliation(s)
- M Ashraf
- a University College of Agriculture, University of Sargodha , Sargodha , 40100 , Pakistan
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13
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Zannini E, Waters DM, Arendt EK. The application of dextran compared to other hydrocolloids as a novel food ingredient to compensate for low protein in biscuit and wholemeal wheat flour. Eur Food Res Technol 2014. [DOI: 10.1007/s00217-014-2161-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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14
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New insights into the effects of high temperature, drought and post-anthesis fertilizer on wheat grain development. J Cereal Sci 2012. [DOI: 10.1016/j.jcs.2011.12.012] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Singh S, Gupta AK, Kaur N. Influence of drought and sowing time on protein composition, antinutrients, and mineral contents of wheat. ScientificWorldJournal 2012; 2012:485751. [PMID: 22629143 PMCID: PMC3354446 DOI: 10.1100/2012/485751] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Accepted: 01/03/2012] [Indexed: 11/17/2022] Open
Abstract
The present study in a two-year experiment investigated the influence of drought and sowing time on protein composition, antinutrients, and mineral contents of wheat whole meal of two genotypes differing in their water requirements. Different thermal conditions prevailing during the grain filling period under different sowing time generated a large effect on the amount of total soluble proteins. Late sown conditions offered higher protein content accompanied by increased albumin-globulin but decreased glutenin content. Fe content was increased to 20–23%; however, tannin decreased to 18–35% under early sown rain-fed conditions as compared to irrigated timely sown conditions in both the genotypes. Activity of trypsin inhibitor was decreased under rain-fed conditions in both genotypes. This study inferred that variable sowing times and irrigation practices can be used for inducing variation in different wheat whole meal quality characteristics. Lower temperature prevailing under early sown rain-fed conditions; resulted in higher protein content. Higher Fe and lower tannin contents were reported under early sown rain-fed conditions however, late sown conditions offered an increase in phytic acid accompanied by decreased micronutrients and glutenin contents.
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Affiliation(s)
- Sondeep Singh
- Department of Biochemistry, Punjab Agricultural University, Ludhiana 141004, India
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16
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Hurkman WJ, Wood DF. High temperature during grain fill alters the morphology of protein and starch deposits in the starchy endosperm cells of developing wheat (Triticum aestivum L.) grain. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:4938-4946. [PMID: 21417450 DOI: 10.1021/jf102962t] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
High temperature during grain fill reduces wheat yield and alters flour quality. Starchy endosperm cell morphology was investigated in wheat ( Triticum aestivum L. 'Butte 86') grain produced under a 24/17 or 37/28 °C day/night regimen imposed from anthesis to maturity to identify changes in cell structure related to the functional properties of flour. The duration of grain fill decreased substantially under the 37/28 °C regimen, but, like the 24/17 °C regimen, endosperm cells in the mature grain were packed with starch and protein. However, A-type starch granules increased in number, decreased in size, and exhibited pitting; B-type granules decreased in both number and size; and the protein matrix was proportionally greater in endosperm cells of grain produced under the 37/28 °C regimen. Such changes in starch granule number, size, and structure and in protein amount are known to contribute to variations in wheat flour quality.
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Affiliation(s)
- William J Hurkman
- Western Regional Research Center, Agricultural Research Service, US Department of Agriculture, Albany, California 94710, United States.
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17
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Chauhan H, Khurana N, Tyagi AK, Khurana JP, Khurana P. Identification and characterization of high temperature stress responsive genes in bread wheat (Triticum aestivum L.) and their regulation at various stages of development. PLANT MOLECULAR BIOLOGY 2011; 75:35-51. [PMID: 20972607 DOI: 10.1007/s11103-010-9702-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2009] [Accepted: 09/30/2010] [Indexed: 05/08/2023]
Abstract
To elucidate the effect of high temperature, wheat plants (Triticum aestivum cv. CPAN 1676) were given heat shock at 37 and 42°C for 2 h, and responsive genes were identified through PCR-Select Subtraction technology. Four subtractive cDNA libraries, including three forward and one reverse subtraction, were constructed from three different developmental stages. A total of 5,500 ESTs were generated and 3,516 high quality ESTs submitted to Genbank. More than one-third of the ESTs generated fall in unknown/no hit category upon homology search through BLAST analysis. Differential expression was confirmed by cDNA macroarray and by northern/RT-PCR analysis. Expression analysis of wheat plants subjected to high temperature stress, after 1 and 4 days of recovery, showed fast recovery in seedling tissue. However, even after 4 days, recovery was negligible in the developing seed tissue after 2 h of heat stress. Ten selected genes were analyzed in further detail including one unknown protein and a new heat shock factor, by quantitative real-time PCR in an array of 35 different wheat tissues representing major developmental stages as well as different abiotic stresses. Tissue specificity was examined along with cross talk with other abiotic stresses and putative signalling molecules.
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Affiliation(s)
- Harsh Chauhan
- Department of Plant Molecular Biology, University of Delhi, South Campus, Benito Juarez Road, Dhaula Kuan, New Delhi, 110 021, India
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18
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Gene networks in the synthesis and deposition of protein polymers during grain development of wheat. Funct Integr Genomics 2010; 11:23-35. [PMID: 20960020 DOI: 10.1007/s10142-010-0196-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2010] [Revised: 10/06/2010] [Accepted: 10/07/2010] [Indexed: 02/04/2023]
Abstract
As the amino acid storing organelle, the protein bodies provide nutrients for embryo development, seed germination and early seedling growth through storage proteolysis in cereal plants, such as wheat and rice. In protein bodies, the monomeric and polymeric prolamins, i.e. gliadins and glutenins, form gluten and play a key role in determining dough functionality and end-product quality of wheat. The formation of intra- and intermolecular bonds, including disulphide and tyrosine bonds, in and between prolamins confers cohesivity, viscosity, elasticity and extensibility to wheat dough during mixing and processing. In this review, we summarize recent progress in wheat gluten research with a focus on the fundamental molecular biological aspects, including transcriptional regulation on genes coding for prolamin components, biosynthesis, deposition and secretion of protein polymers, formation of protein bodies, genetic control of seed storage proteins, the transportation of the protein bodies and key enzymes for determining the formation of disulphide bonds of prolamin polymers.
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19
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Szucs A, Jäger K, Jurca ME, Fábián A, Bottka S, Zvara A, Barnabás B, Fehér A. Histological and microarray analysis of the direct effect of water shortage alone or combined with heat on early grain development in wheat (Triticum aestivum). PHYSIOLOGIA PLANTARUM 2010; 140:174-88. [PMID: 20573045 DOI: 10.1111/j.1399-3054.2010.01394.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Based on the in silico analysis of the representation of expressed sequence tags (ESTs) in wheat grain-related cDNA libraries, a specific 15k oligonucleotide microarray has been developed in order to monitor environmental stress-dependent gene expression changes in the wheat caryopses. Using this array, the effect of water withdrawal, with and without additional heat stress, has been investigated during the first five days of kernel development on two wheat cultivars differing in their drought sensitivity. Water shortage affected (more than twofold change) the expression of only 0.5% of the investigated genes. A parallel heat treatment increased the ratio of responding genes to 5-7% because of the temperature stress and/or the increased water deficit because of enhanced evaporation. It could be established that the two cultivars, differing in their long-term adaptation capabilities to drought, responded to the short and direct stress treatments on the same way. In response to the combined drought and heat treatment, the coordinately altered expression of genes coding for storage proteins, enzymes involved in sugar/starch metabolism, histone proteins, heat shock proteins, proteases, tonoplast aquaporins as well as several transcription factors has been observed. These gene expression changes were in agreement with histological data that demonstrated the accelerated development of the embryo as well as the endosperm.
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Affiliation(s)
- Attila Szucs
- Institute of Plant Biology, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
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20
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Shewry PR, Underwood C, Wan Y, Lovegrove A, Bhandari D, Toole G, Mills EC, Denyer K, Mitchell RA. Storage product synthesis and accumulation in developing grains of wheat. J Cereal Sci 2009. [DOI: 10.1016/j.jcs.2009.03.009] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Hurkman WJ, Vensel WH, Tanaka CK, Whitehand L, Altenbach SB. Effect of high temperature on albumin and globulin accumulation in the endosperm proteome of the developing wheat grain. J Cereal Sci 2009. [DOI: 10.1016/j.jcs.2008.06.014] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Scossa F, Laudencia-Chingcuanco D, Anderson OD, Vensel WH, Lafiandra D, D'Ovidio R, Masci S. Comparative proteomic and transcriptional profiling of a bread wheat cultivar and its derived transgenic line overexpressing a low molecular weight glutenin subunit gene in the endosperm. Proteomics 2008; 8:2948-66. [PMID: 18655071 DOI: 10.1002/pmic.200700861] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We carried out a parallel transcriptional and proteomic comparison of seeds from a transformed bread wheat line that overexpresses a transgenic low molecular weight glutenin subunit gene relative to the corresponding nontransformed genotype. Proteomic analyses showed that, during seed development, several classes of endosperm proteins were differentially accumulated in the transformed endosperm. As a result of the strong increase in the amount of the transgenic protein, the endogenous glutenin subunit, all subclasses of gliadins, and metabolic as well as chloroform/methanol soluble proteins were diminished in the transgenic genotype. The differential accumulation detected by proteomic analyses, both in mature and developing seeds, was paralleled by the corresponding changes in transcript levels detected by microarray experiments. Our results suggest that the most evident effect of the strong overexpression of the transgenic glutenin gene consists in a global compensatory response involving a significant decrease in the amounts of polypeptides belonging to the prolamin superfamily. It is likely that such compensation is a consequence of the diversion of amino acid reserves and translation machinery to the synthesis of the transgenic glutenin subunit.
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Affiliation(s)
- Federico Scossa
- Department of Agrobiology and Agrochemistry, University of Tuscia, Viterbo, Italy
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23
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Loussert C, Popineau Y, Mangavel C. Protein bodies ontogeny and localization of prolamin components in the developing endosperm of wheat caryopses. J Cereal Sci 2008. [DOI: 10.1016/j.jcs.2007.05.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Barnabás B, Jäger K, Fehér A. The effect of drought and heat stress on reproductive processes in cereals. PLANT, CELL & ENVIRONMENT 2008; 31:11-38. [PMID: 17971069 DOI: 10.1111/j.1365-3040.2007.01727.x] [Citation(s) in RCA: 329] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
As the result of intensive research and breeding efforts over the last 20 years, the yield potential and yield quality of cereals have been greatly improved. Nowadays, yield safety has gained more importance because of the forecasted climatic changes. Drought and high temperature are especially considered as key stress factors with high potential impact on crop yield. Yield safety can only be improved if future breeding attempts will be based on the valuable new knowledge acquired on the processes determining plant development and its responses to stress. Plant stress responses are very complex. Interactions between plant structure, function and the environment need to be investigated at various phases of plant development at the organismal, cellular as well as molecular levels in order to obtain a full picture. The results achieved so far in this field indicate that various plant organs, in a definite hierarchy and in interaction with each other, are involved in determining crop yield under stress. Here we attempt to summarize the currently available information on cereal reproduction under drought and heat stress and to give an outlook towards potential strategies to improve yield safety in cereals.
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Affiliation(s)
- Beáta Barnabás
- Agricultural Research Institute of the Hungarian Academy of Sciences, Brunszvik 2, H-2462 Martonvásár, Hungary.
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25
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Torbica A, Antov M, Mastilović J, Knežević D. The influence of changes in gluten complex structure on technological quality of wheat (Triticum aestivum L.). Food Res Int 2007. [DOI: 10.1016/j.foodres.2007.05.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Altenbach SB, Kothari KM. Omega gliadin genes expressed in Triticum aestivum cv. Butte 86: Effects of post-anthesis fertilizer on transcript accumulation during grain development. J Cereal Sci 2007. [DOI: 10.1016/j.jcs.2007.02.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Abonyi T, Király I, Tömösközi S, Baticz O, Guóth A, Gergely S, Scholz E, Lásztity D, Lásztity R. Synthesis of gluten-forming polypeptides. 1. Biosynthesis of gliadins and glutenin subunits. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:3655-60. [PMID: 17407308 DOI: 10.1021/jf063143z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Five winter wheat cultivars--GK Othalom (HMW-GS composition 2*, 7+8, 5+10), Ukrainka (1, 7+8, 5+10), Palotás (2*, 7+9, 5+10), Ködmön (2*, 7+8, 5+10), and Csongrád (2*, 7+9, 2+12)--grown in Hungary and harvested in the year 2005 were studied. The biosynthesis of gluten-forming polypeptides was followed starting at the 12th day after anthesis to the 53rd. Fresh kernel weight, moisture, and dry matter content of fresh kernels and gliadin and glutenin contents were determined. Gliadin components, total amounts of HMW and LMW polypeptides, and individual HMW polypeptides were determined using a RP-HPLC technique. Although considerable quantitative differences were observed concerning the content of total protein, gliadin, glutenin, and individual gluten-forming polypeptides, the character of accumulation of protein components--determined on the basis protein mass/kernel--was the same for the all of the cultivars studied and could be presented by a sigmoid curve. Small quantities of the gliadin and glutenin monomers may be detected in early stages of kernel development, but the bulk of these proteins is synthesized in later stages of development. It is generally suggested by specialists that the formation and accumulation of glutenin polymers starts later than the synthesis of monomers. Experimental data presented in this paper confirm this suggestion and show that in the first phase of protein synthesis the monomers are in "free" form; polymeric glutenin is detected only later. HMW glutenin subunits are synthesized synchronously, and quantitatively the polypeptides coded by chromosomes D and B dominate.
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Affiliation(s)
- Tibor Abonyi
- Department of Biochemistry and Food Technology, Budapest University of Technology and Economics, P.O. Box 91, Budapest H-1521, Hungary
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28
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DuPont F, Chan R, Lopez R. Molar fractions of high-molecular-weight glutenin subunits are stable when wheat is grown under various mineral nutrition and temperature regimens. J Cereal Sci 2007. [DOI: 10.1016/j.jcs.2006.07.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Differential accumulation of sulfur-rich and sulfur-poor wheat flour proteins is affected by temperature and mineral nutrition during grain development. J Cereal Sci 2006. [DOI: 10.1016/j.jcs.2006.04.003] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Wegel E, Vallejos RH, Christou P, Stöger E, Shaw P. Large-scale chromatin decondensation induced in a developmentally activated transgene locus. J Cell Sci 2005; 118:1021-31. [PMID: 15713746 DOI: 10.1242/jcs.01685] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The high molecular weight (HMW) glutenin-encoding genes in wheat are developmentally activated in the endosperm at about 8 days after anthesis. We have investigated the physical changes that occur in these genes in two transgenic lines containing about 20 and 50 copies each of the HMW glutenin genes together with their promoters. Using fluorescence in-situ hybridisation (FISH) and confocal imaging, we demonstrate that, in non-expressing tissue, each transgene locus consists of one or two highly condensed sites, which decondense into many foci upon activation of transcription in endosperm nuclei. Initiation of transcription can precede decondensation but not vice versa. We show that, in one of the lines, cytoplasmic transcript levels are high after onset of transcription but disappear by 14 days after anthesis, whereas small interfering RNAs, which indicate post-transcriptional gene silencing (PTGS), are detected at this stage. However, the transcript levels remain high at the transcription sites, most of the transgene copies are transcriptionally active and transcriptional activity in the nucleus ceases only with cell death at the end of endosperm development.
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MESH Headings
- Cell Nucleus/metabolism
- Chromatin/chemistry
- Chromatin/metabolism
- Chromatin/ultrastructure
- Cytoplasm/metabolism
- DNA/metabolism
- DNA Methylation
- DNA Primers/chemistry
- Flow Cytometry
- Gene Expression Regulation, Developmental
- Gene Expression Regulation, Plant
- Gene Silencing
- Genes, Plant
- Glutens/genetics
- Image Processing, Computer-Assisted
- In Situ Hybridization
- In Situ Hybridization, Fluorescence
- Metaphase
- Microscopy, Confocal
- Plant Physiological Phenomena
- Plant Roots/metabolism
- Plants, Genetically Modified
- Plasmids/metabolism
- Promoter Regions, Genetic
- Protein Structure, Tertiary
- RNA/metabolism
- RNA, Messenger/metabolism
- RNA, Small Interfering/metabolism
- Seeds/metabolism
- Time Factors
- Transcription, Genetic
- Transformation, Genetic
- Transgenes
- Triticum/genetics
- Triticum/metabolism
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Affiliation(s)
- Eva Wegel
- Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Colney Lane, Norwich, NR4 7UH, UK
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31
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Altenbach SB, Kothari KM. Transcript profiles of genes expressed in endosperm tissue are altered by high temperature during wheat grain development. J Cereal Sci 2004. [DOI: 10.1016/j.jcs.2004.05.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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33
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Delwiche SR, Graybosch RA. Examination of spectral pretreatments for partial least-squares calibrations for chemical and physical properties of wheat. APPLIED SPECTROSCOPY 2003; 57:1517-1527. [PMID: 14686774 DOI: 10.1366/000370203322640161] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Use of near-infrared (NIR) diffuse reflectance on ground wheat meal for prediction of protein content is a well-accepted practice. Although protein content has a strong bearing on the suitability of wheat (Triticum aestivum L.) for processed foods, wheat quality, as largely influenced by the configuration and conformation of the monomeric and polymeric endosperm storage proteins, is also of great importance to the food industry. The measurement of quality by NIR, however, has been much less successful. The present study examines the effects and trends of applying mathematical transformations (pretreatments) to NIR spectral data before partial least-squares (PLS) regression. Running mean smooths, Savitzky-Golay second derivatives, multiplicative scatter correction, and standard normal variate transformation, with and without detrending, were systematically applied to an extensive set of hard red winter wheat and hard white wheat grown over two seasons. The studied properties were protein content, sodium dodecyl sulfate (SDS) sedimentation volume, number of hours during grain fill at temperature <24 degrees C, and number of hours during grain fill at temperature >32 degrees C. The size of the convolution window used to perform a smooth or second derivative was also examined. The results indicate that for easily modeled properties such as protein content, the importance of pretreatment was lessened, whereas for the more difficult-to-model properties, such as SDS sedimentation volume, wide-window (>20 points) smooth or derivative convolutions were important in maximizing calibration performance. By averaging 30 PLS cross-validation trial statistics (standard error) for each property, we were able to ascertain the inherent modeling ability of each wheat property.
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Affiliation(s)
- Stephen R Delwiche
- USDA/ARS, Beltsville Agricultural Research Center, Instrumentation and Sensing Laboratory, Building 303, BARC-East, Beltsville, Maryland 20705-2350, USA.
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34
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Molecular and biochemical impacts of environmental factors on wheat grain development and protein synthesis. J Cereal Sci 2003. [DOI: 10.1016/s0733-5210(03)00030-4] [Citation(s) in RCA: 266] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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35
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Temperature, Water and Fertilizer Influence the Timing of Key Events During Grain Development in a US Spring Wheat. J Cereal Sci 2003. [DOI: 10.1006/jcrs.2002.0483] [Citation(s) in RCA: 182] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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