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Szepe KJ, Dyer PS, Johnson RI, Salter AM, Avery SV. Influence of environmental and genetic factors on food protein quality: current knowledge and future directions. Curr Opin Food Sci 2021. [DOI: 10.1016/j.cofs.2021.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yang Q, Yu W, Wu H, Zhang C, Sun SS, Liu Q. Lysine biofortification in rice by modulating feedback inhibition of aspartate kinase and dihydrodipicolinate synthase. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:490-501. [PMID: 32945115 PMCID: PMC7955878 DOI: 10.1111/pbi.13478] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/21/2020] [Accepted: 09/01/2020] [Indexed: 05/27/2023]
Abstract
Lysine is the main limiting essential amino acid (EAA) in the rice seeds, which is a major energy and nutrition source for humans and livestock. In higher plants, the rate-limiting steps in lysine biosynthesis pathway are catalysed by two key enzymes, aspartate kinase (AK) and dihydrodipicolinate synthase (DHDPS), and both are extremely sensitive to feedback inhibition by lysine. In this study, two rice AK mutants (AK1 and AK2) and five DHDPS mutants (DHDPS1-DHDPS5), all single amino acid substitution, were constructed. Their protein sequences passed an allergic sequence-based homology alignment. Mutant proteins were recombinantly expressed in Escherichia coli, and all were insensitive to the lysine analog S-(2-aminoethyl)-l-cysteine (AEC) at concentrations up to 12 mm. The AK and DHDPS mutants were transformed into rice, and free lysine was elevated in mature seeds of transgenic plants, especially those expressing AK2 or DHDPS1, 6.6-fold and 21.7-fold higher than the wild-type (WT) rice, respectively. We then engineered 35A2D1L plants by simultaneously expressing modified AK2 and DHDPS1, and inhibiting rice LKR/SDH (lysine ketoglutaric acid reductase/saccharopine dehydropine dehydrogenase). Free lysine levels in two 35A2D1L transgenic lines were 58.5-fold and 39.2-fold higher than in WT and transgenic rice containing native AK and DHDPS, respectively. Total free amino acid and total protein content were also elevated in 35A2D1L transgenic rice. Additionally, agronomic performance analysis indicated that transgenic lines exhibited normal plant growth, development and seed appearance comparable to WT plants. Thus, AK and DHDPS mutants may be used to improve the nutritional quality of rice and other cereal grains.
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Affiliation(s)
- Qing‐Qing Yang
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of EducationCollege of AgricultureYangzhou UniversityYangzhouChina
- State Key Laboratory of AgrobiotechnologySchool of Life SciencesThe Chinese University of Hong KongHong KongChina
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri‐Product Safety of the Ministry of EducationYangzhou UniversityYangzhouChina
| | - Wai‐Han Yu
- State Key Laboratory of AgrobiotechnologySchool of Life SciencesThe Chinese University of Hong KongHong KongChina
| | - Hong‐Yu Wu
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of EducationCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Chang‐Quan Zhang
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of EducationCollege of AgricultureYangzhou UniversityYangzhouChina
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri‐Product Safety of the Ministry of EducationYangzhou UniversityYangzhouChina
| | - Samuel Sai‐Ming Sun
- State Key Laboratory of AgrobiotechnologySchool of Life SciencesThe Chinese University of Hong KongHong KongChina
| | - Qiao‐Quan Liu
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of EducationCollege of AgricultureYangzhou UniversityYangzhouChina
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri‐Product Safety of the Ministry of EducationYangzhou UniversityYangzhouChina
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Hasan MM, Rima R. Genetic engineering to improve essential and conditionally essential amino acids in maize: transporter engineering as a reference. Transgenic Res 2021; 30:207-220. [PMID: 33583006 DOI: 10.1007/s11248-021-00235-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 01/21/2021] [Indexed: 11/27/2022]
Abstract
Ruminants and humans are unable to synthesize essential amino acids (EAAs) and conditionally essential amino acids (CEAAs) under normal conditions and need to acquire them from plant sources. Maize plays, as a major crop, a central role in global food security. However, maize is deficient in several EAAs and CEAAs. Genetic engineering has been successfully used to enrich the EAA content of maize to some extent, including the content of Lys, Trp, and Met. However, research on other EAAs is lacking. Genetic engineering provides several viable approaches for increasing the EAA content in maize, including transformation of a single gene, transformation of multiple genes in a single cassette, overexpression of putative amino acid transporters, engineering the amino acid biosynthesis pathway including silencing of feedback inhibition enzymes, and overexpression of major enzymes in this pathway. These challenging processes require a deep understanding of the biosynthetic and metabolic pathways of individual amino acids, and the interaction of individual amino acids with other metabolic pathways.
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Affiliation(s)
- Md Mahmudul Hasan
- Department of Nutrition and Food Technology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
- The Key Laboratory of Plant-Soil Interactions, Ministry of Education, Center for Resources, Environment and Food Security, Department of Plant Nutrition, China Agricultural University, Beijing, 100193, China.
| | - Rima Rima
- Faculty of Food Science and Nutrition, Poznan University of Life Sciences, Poznan, Poland
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Reduction of nitrogen excretion and emissions from poultry: a review for conventional poultry. WORLD POULTRY SCI J 2019. [DOI: 10.1017/s0043933916000477] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Prospects for the use of genetically modified crops with improved nutritional properties as feed materials in poultry nutrition. WORLD POULTRY SCI J 2019. [DOI: 10.1017/s0043933911000729] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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de Santis B, Stockhofe N, Wal JM, Weesendorp E, Lallès JP, van Dijk J, Kok E, De Giacomo M, Einspanier R, Onori R, Brera C, Bikker P, van der Meulen J, Kleter G. Case studies on genetically modified organisms (GMOs): Potential risk scenarios and associated health indicators. Food Chem Toxicol 2018; 117:36-65. [DOI: 10.1016/j.fct.2017.08.033] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 07/03/2017] [Accepted: 08/22/2017] [Indexed: 01/07/2023]
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Vince L, Kleter GA, Kostov K, Pfeiffer DU, Guitian J. The applicability of animal health surveillance systems for post-market monitoring of potential adverse effects of genetically modified (GM) feed. Food Chem Toxicol 2018; 117:79-88. [PMID: 29680271 DOI: 10.1016/j.fct.2018.04.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 04/12/2018] [Accepted: 04/16/2018] [Indexed: 11/16/2022]
Abstract
A facultative post market monitoring of potential health impacts of genetically modified (GM) feedstuffs on livestock consuming these feeds after pre-market risk assessment is under ongoing consideration. Within the IPAFEED database, scientific studies on health effects beyond performance in livestock and the results of a systematic search for evidence of outcome effects due to GM feed are consolidated. These outcomes were reviewed and checked for consistency in order to identify plausible syndromes suitable for conducting surveillance. The 24 selected studies showed no consistent changes in any health parameter. There were no repeated studies in any species by GM crop type and animal species. As such, there is insufficient evidence to inform the design of surveillance systems for detecting known adverse effects. Animal health surveillance systems have been proposed for the post market monitoring of potential adverse effects in animals. Such systems were evaluated for their applicability to the detection of hypothetical adverse effects and their strengths and weaknesses to detect syndromes of concern are presented. For known adverse effects, applied controlled post-market studies may yield conclusive and high-quality evidence. For detecting unknown adverse effects, the use of existing surveillance systems may still be of interest. A simulation tool developed within the project can be adapted and applied to existing surveillance systems to explore their applicability to the detection of potential adverse effects of GM feed.
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Affiliation(s)
- L Vince
- Veterinary Epidemiology, Economics and Public Health Group, The Royal Veterinary College, University of London, United Kingdom.
| | - G A Kleter
- RIKILT Wageningen University & Research, Wageningen, The Netherlands
| | - K Kostov
- Agribioinstitute, Sofia, Bulgaria
| | - D U Pfeiffer
- Veterinary Epidemiology, Economics and Public Health Group, The Royal Veterinary College, University of London, United Kingdom; College of Veterinary Medicine & Life Sciences, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region
| | - J Guitian
- Veterinary Epidemiology, Economics and Public Health Group, The Royal Veterinary College, University of London, United Kingdom
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Yang QQ, Suen PK, Zhang CQ, Mak WS, Gu MH, Liu QQ, Sun SSM. Improved growth performance, food efficiency, and lysine availability in growing rats fed with lysine-biofortified rice. Sci Rep 2017; 7:1389. [PMID: 28465621 PMCID: PMC5430985 DOI: 10.1038/s41598-017-01555-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 03/30/2017] [Indexed: 11/24/2022] Open
Abstract
Rice is an excellent source of protein, and has an adequate balance of amino acids with the exception of the essential amino acid lysine. By using a combined enhancement of lysine synthesis and suppression of its catabolism, we had produced two transgenic rice lines HFL1 and HFL2 (High Free Lysine) containing high concentration of free lysine. In this study, a 70-day rat feeding study was conducted to assess the nutritional value of two transgenic lines as compared with either their wild type (WT) or the WT rice supplemented with different concentrations of L-lysine. The results revealed that animal performance, including body weight, food intake, and food efficiency, was greater in the HFL groups than in the WT group. Moreover, the HFL diets had increased protein apparent digestibility, protein efficiency ratio, and lysine availability than the WT diet. Based on the linear relationship between dietary L-lysine concentrations and animal performance, it indicated that the biological indexes of the HFL groups were similar or better than that of the WT20 group, which was supplemented with L-lysine concentrations similar to those present in the HFL diets. Therefore, lysine-biofortified rice contributed to improved growth performance, food efficiency, and lysine availability in growing rats.
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Affiliation(s)
- Qing-Qing Yang
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
- State Key Laboratory of Agrobiotechnology, School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Pui Kit Suen
- State Key Laboratory of Agrobiotechnology, School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Chang-Quan Zhang
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China
| | - Wan Sheung Mak
- State Key Laboratory of Agrobiotechnology, School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Ming-Hong Gu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
| | - Qiao-Quan Liu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China.
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China.
| | - Samuel Sai-Ming Sun
- State Key Laboratory of Agrobiotechnology, School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China.
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Affiliation(s)
- Gerhard Flachowsky
- Institute of Animal Nutrition, Friedrich-Loeffler-Institute (FLI), Federal Research Institute of Animal Health, Bundesallee 50, 38116 Braunschweig, Germany
| | - Tim Reuter
- Alberta Agriculture and Forestry, Agriculture Centre, 100-5401 -1st Avenue South, Lethbridge, Alberta T1J 4V6 Canada
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Prandini A, Sigolo S, Morlacchini M, Marocco A, Lo Pinto M. High-protein maize in diets for broilers. ITALIAN JOURNAL OF ANIMAL SCIENCE 2016. [DOI: 10.4081/ijas.2011.e55] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Aldo Prandini
- Istituto di Scienze degli Alimenti e della Nutrizione, Università Cattolica del Sacro Cuore di Piacenza, Italy
| | - Samantha Sigolo
- Istituto di Scienze degli Alimenti e della Nutrizione, Università Cattolica del Sacro Cuore di Piacenza, Italy
| | | | - Adriano Marocco
- Istituto di Agronomia, Genetica e Coltivazioni Erbacee, Università Cattolica del Sacro Cuore di Piacenza, Italy
| | - Mario Lo Pinto
- Istituto Sementi e Tecnologie Agro-alimentari Veneto Sementi, Parco Tecnologico Padano, Lodi, Italy
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Galili G, Amir R. Fortifying plants with the essential amino acids lysine and methionine to improve nutritional quality. PLANT BIOTECHNOLOGY JOURNAL 2013; 11:211-22. [PMID: 23279001 DOI: 10.1111/pbi.12025] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 09/27/2012] [Accepted: 10/12/2012] [Indexed: 05/03/2023]
Abstract
Humans, as well as farm animals, cannot synthesize a number of essential amino acids, which are critical for their survival. Hence, these organisms must obtain these essential amino acids from their diets. Cereal and legume crops, which represent the major food and feed sources for humans and livestock worldwide, possess limiting levels of some of these essential amino acids, particularly Lys and Met. Extensive efforts were made to fortify crop plants with these essential amino acids using traditional breeding and mutagenesis. However, aside from some results obtained with maize, none of these approaches was successful. Therefore, additional efforts using genetic engineering approaches concentrated on increasing the synthesis and reducing the catabolism of these essential amino acids and also on the expression of recombinant proteins enriched in them. In the present review, we discuss the basic biological aspects associated with the synthesis and accumulation of these amino acids in plants and also describe recent developments associated with the fortification of crop plants with essential amino acids by genetic engineering approaches.
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Affiliation(s)
- Gad Galili
- Department of Plant Science, The Weizmann Institute of Science, Rehovot, Israel.
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Arruda P, Neshich IP. Nutritional‐rich and stress‐tolerant crops by saccharopine pathway manipulation. Food Energy Secur 2012. [DOI: 10.1002/fes3.9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Paulo Arruda
- Centro de Biologia Molecular e Engenharia Genética Universidade Estadual de Campinas Campinas Sao Paulo Brazil
- Departamento de Genética e Evolução, IB Universidade Estadual de Campinas Campinas Sao Paulo Brazil
| | - Izabella Pena Neshich
- Centro de Biologia Molecular e Engenharia Genética Universidade Estadual de Campinas Campinas Sao Paulo Brazil
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Zhang N, Xu W, Bai W, Zhai Z, Luo Y, Yan X, He J, Huang K. Event-specific qualitative and quantitative PCR detection of LY038 maize in mixed samples. Food Control 2011. [DOI: 10.1016/j.foodcont.2011.01.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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High-lysine maize: the key discoveries that have made it possible. Amino Acids 2010; 39:979-89. [PMID: 20373119 DOI: 10.1007/s00726-010-0576-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2009] [Accepted: 03/17/2010] [Indexed: 10/19/2022]
Abstract
Forty-five years ago, a paper published by Mertz et al. (Science 145:279-280, 1964) initiated a revolution in the history of plant protein quality and affected dramatically the study of cereal crop storage proteins. The observation of the high lysine content of the endosperm of the opaque-2 (o2) maize mutant was a key factor in bringing about a new concept in the production of cereal seeds with a high nutritional value. It has been a long and very interesting road with astonishing results over these 45 years. We are now probably about to see the release of commercially engineered high-lysine maize lines. We have decided to pinpoint some key contributions to the science behind high-lysine plants and concentrated on the research done on maize, which is possibly the most complete and simple example to illustrate the advances achieved. However, studies on other plant species such as barley and model species such as tobacco are totally relevant and will be briefly addressed.
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