利用MDAR1基因开发耐盐胁迫转基因小麦植株。

IF 4.5 2区 农林科学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Mohamed Abdelsattar, Ahmed M Ramadan, Amin E Eltayeb, Osama M Saleh, Fatthy M Abdel-Tawab, Eman M Fahmy, Sameh E Hassanein, Hani M Ali, Najla B S Al-Saud, Hussien F Alameldin, Sabah M Hassan, Nermin G Mohamed, Ahmed Z Abdel Azeiz, Ahmed Bahieldin, Hala F Eissa
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引用次数: 0

摘要

鉴于气候变化已经成为全球粮食系统面临的难题之一,研究人员有义务致力于开发基本作物,特别是小麦,以应对包括干旱和盐在内的环境压力。在本研究中,利用基因工程转移拟南芥MDAR1基因,该基因控制抗坏血酸(AsA)的积累,使面包小麦对盐胁迫不那么敏感。利用生物轰击法将拟南芥编码MDAR1的cDNA转移到Bobwhite 56小麦品种植株中。对6个不同的转基因品系进行了分子研究,以确认转基因的整合、拷贝数和转基因的表达。该转基因有1 - 3个拷贝,且未发现该转基因的拷贝数与基因数量之间存在关联。本研究过程中产生或分析的所有数据均包含在本已发表的文章[及其补充信息文件]中。表达的存在与未转基因植株相比,转基因植株体内积累的抗坏血酸(AsA)是未转基因植株的两倍。在对照和盐胁迫条件下,转基因植株的ROS浓度均显著低于非转基因植株,有效降低了氧化应激。通过在温室中培育转基因T2植株,我们能够确定它们是否能够耐受盐胁迫(200毫米)的潜在破坏性影响。该研究得出结论,持续表达MDAR1基因的转基因小麦植株对盐胁迫具有耐受性,其生长特性得到改善。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of transgenic wheat plants withstand salt stress via the MDAR1 gene.

In light of the fact that climate change has emerged as one of the difficulties confronting the global food system, researchers are obligated to work toward developing fundamental crops, particularly wheat, to combat environmental stress, including drought and salt. In the present study, genetic engineering was used to transfer the Arabidopsis MDAR1 gene, which controls the buildup of ascorbic acid (AsA) to make bread wheat less likely to be sensitive to salt stress. The biolistic bombardment was used to transfer cDNA from the Arabidopsis thaliana plant that encodes MDAR1 into Bobwhite 56 cultivar wheat plants. A molecular investigation was performed on six different transgenic lines to confirm the integration of the transgene, the copy number, and the expression of the transgene. There were one to three copies of the transgene, and there was no association found between the number of copies of the transgene and All the data generated or analyzed during this study are included in this published article [and its supplementary information files].the presence of its expression. Compared to plants that were not transgenic, the amount of ascorbic acid (AsA) that accumulated in the transgenic plants was twice as high. ROS concentrations are significantly lower in transgenic plants compared to non-transgenic plants under both control and salt stress conditions, effectively reducing oxidative stress. By cultivating transgenic T2 plants in a greenhouse, we were able to determine whether they were able to tolerate the potentially damaging effects of salt stress (200 mm). The study concluded that transgenic wheat plants that consistently expressed the MDAR1 gene become tolerant to salt stress with improvement in growth characteristics.

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来源期刊
Gm Crops & Food-Biotechnology in Agriculture and the Food Chain
Gm Crops & Food-Biotechnology in Agriculture and the Food Chain Biochemistry, Genetics and Molecular Biology-Biotechnology
CiteScore
8.10
自引率
10.30%
发文量
22
期刊介绍: GM Crops & Food - Biotechnology in Agriculture and the Food Chain aims to publish high quality research papers, reviews, and commentaries on a wide range of topics involving genetically modified (GM) crops in agriculture and genetically modified food. The journal provides a platform for research papers addressing fundamental questions in the development, testing, and application of transgenic crops. The journal further covers topics relating to socio-economic issues, commercialization, trade and societal issues. GM Crops & Food aims to provide an international forum on all issues related to GM crops, especially toward meaningful communication between scientists and policy-makers. GM Crops & Food will publish relevant and high-impact original research with a special focus on novelty-driven studies with the potential for application. The journal also publishes authoritative review articles on current research and policy initiatives, and commentary on broad perspectives regarding genetically modified crops. The journal serves a wide readership including scientists, breeders, and policy-makers, as well as a wider community of readers (educators, policy makers, scholars, science writers and students) interested in agriculture, medicine, biotechnology, investment, and technology transfer. Topics covered include, but are not limited to: • Production and analysis of transgenic crops • Gene insertion studies • Gene silencing • Factors affecting gene expression • Post-translational analysis • Molecular farming • Field trial analysis • Commercialization of modified crops • Safety and regulatory affairs BIOLOGICAL SCIENCE AND TECHNOLOGY • Biofuels • Data from field trials • Development of transformation technology • Elimination of pollutants (Bioremediation) • Gene silencing mechanisms • Genome Editing • Herbicide resistance • Molecular farming • Pest resistance • Plant reproduction (e.g., male sterility, hybrid breeding, apomixis) • Plants with altered composition • Tolerance to abiotic stress • Transgenesis in agriculture • Biofortification and nutrients improvement • Genomic, proteomic and bioinformatics methods used for developing GM cops ECONOMIC, POLITICAL AND SOCIAL ISSUES • Commercialization • Consumer attitudes • International bodies • National and local government policies • Public perception, intellectual property, education, (bio)ethical issues • Regulation, environmental impact and containment • Socio-economic impact • Food safety and security • Risk assessments
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