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American Journal of Plant Sciences 2020年第10期11卷 1545-1561页

作者： Minimassom P. Nikièma Djibril Yonli Harimialimalala J. Rabefiraisana Adel Ali Nofou Ouédraogo Hamidou Traoré Hamidou Y. A. Yanogo Karim Dao Mahamadou Sawadogo Ljupcho Jankuloski Ingelbrecht Ivan Mukhtar Ali Ghanim abdelbagi Institut de l’Environnement et de Recherches Agricoles (INERA) Ouagadougou Burkina Faso Faculty of Sciences University of Antananarivo Antananarivo Analamanga Madagascar Plant Breeding and Genetics Laboratory Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture Department of Nuclear Sciences and Applications (NAFA) International Atomic Energy Agency (IAEA) Seibersdorf Austria Université Joseph Ki-Zerbo Ouagadougou Burkina Faso NAFA IAEA Vienna International Center Vienna Austria

Striga species affect the potential productivity of cereals in sub-Saharian Africa due to the lack of durable Striga-resistance in host crops. This study aimed at inducing the new source of resistance in sorghum using gamma irradiation. Dry seeds of three Sorghum varieties;Grinkan, ICV1049 and Sariaso14 were gamma-irradiated with 200 Gy, 300 Gy, 400 Gy and 500 Gy. Screening strategies involved a 2-year field and greenhouse experiments, where mutant Sorghum families, their parents and resistant control were artificially infected with Striga hermonthica seeds. Field screenings revealed induced genetic variability among them, forty families significantly reduced the number of emerged Striga plants or showed good Sorghum grain yield performance despite the infection by S. hermonthica ecotype from Burkina Faso. The induced putative resistant mutants were identified across the four applied gamma-irradiation doses. Greenhouse experiment confirmed Striga resistance in seven mutant Sorghum families leading to no emergence of Burkina’s S. hermonthica ecotype along with high resistance index (RI) and low Striga damage score. Among them, two mutants SA38M5 and IC47M5 withstood S. hermonthica

关键词： Sorghum Induced Mutation Striga Resistance

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涝害抑制水稻分蘖的相关生理机理研究

涝害抑制水稻分蘖的相关生理机理研究

Application of Marker Assisted Backcrossing to Introgress the Submergence Tolerance QTL <i>SUB</i>1 into the Vietnam Elite Rice Variety-AS996

2018中国作物学会学术年会

作者：朱广龙周桂生 Evangelina S.Ella abdelbagi M.Ismail 扬州大学农业科技发展研究院教育部农业与农产品安全国际合作联合实验室江苏省粮食作物现代产业技术协同创新中心扬州大学国际水稻研究所

【研究背景】近些年,气候变化异常,洪涝灾害频发且加剧,严重影响了农业生产和粮食安全。水稻通常在5-20 cm的水层中能正常生长,而当积水深度超过25 cm时可导致其生长不良甚至死亡,即发生涝害。按淹水程度,涝害可以分为半淹、深淹和全淹... 详细信息

【研究背景】近些年,气候变化异常,洪涝灾害频发且加剧,严重影响了农业生产和粮食安全。水稻通常在5-20 cm的水层中能正常生长,而当积水深度超过25 cm时可导致其生长不良甚至死亡,即发生涝害。按淹水程度,涝害可以分为半淹、深淹和全淹。在实际生产中,半淹水涝害较为普遍。水稻营养生长期遭遇半淹水涝害诱发茎秆伸长而抑制分蘖产生。然而涝害抑制水稻分蘖发生的相关生理机理仍然不清;【材料与方法】本研究选取对半淹水涝害耐受能力不同的3个水稻品种Swama(敏感型)、Swama-Sub1(敏感型)和IRRI154(耐淹型)为试材进行研究,盆栽试验设置0、5、30和50 cm 4个半淹水处理,播种后14天开始半淹水处理,定期取样测定相关指标;【结果与分析】在半淹水涝害胁迫下,各品种的分蘖发生显著受抑,而株高、茎秆伸长率、根系生物量、出叶速率、根-茎结合部位(分蘖发生部位)的非结构性碳水化合物(NSC)含量显著增加。植株顶叶叶绿素含量高于基部叶片,随淹水深度增加,上下部叶片的叶绿素含量均降低。半淹水涝害使过氧化氢产生加剧,同时叶片与茎秆丙二醛含量显著增加,而根茎结合部位丙二醛含量增加较为迟缓。分蘖数与株高、茎秆伸长率、出叶速率、根系生物量、叶片和根茎结合部位丙二醛含量及NSC含量呈显著负相关;【结论】在半淹水涝害下,水稻生长过程中分蘖的发生和茎秆的伸长存在竞争与补偿的机制,大部分能量用于茎秆的伸长而避免被淹没。水稻分蘖的抑制主要是由于能量亏缺和氧化损伤所致。耐涝品种调节能量平衡和抗氧化的能力较强。

关键词：水稻涝害分蘖氧化损伤

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American Journal of Plant Sciences 2012年第4期3卷 528-536页

作者： Luu M. Cuc Luu T. N. Huyen Pham T. M. Hien Vu T. T. Hang Nguyen Q. Dam Pham T. Mui Vu D. Quang abdelbagi M. Ismail Le H. Ham Agricultural Genetics Institute Tu Liem Vietnam Cuu Long River Delta Rice Research Institute Tan Thanh Vietnam International Rice Research Institute Metro Manila Philippine

The result of the study contributes to enhancing and sustaining future livelihoods and food security in Vietnam vis-a-vis climate change. An innovative strategy based on marker-assisted backcrossing (MABC) was used to transform popular rice variety AS996 into the one can tolerate submergence while maintaining its original characteristics preferred by farmers and consumers. The submergence tolerance QTL SUB1 counts for up to 70% of the submergence tolerant and provides a marked improvement of submergence tolerance in all genetic backgrounds and environments tested so far. Parental diversity was carried out with 460 markers. Of which, 53 polymorphic markers were used for assessment on BC1F1, BC2F1 and BC3F1 generations. The best BC1F1 plant was P422 with highest recipient allele was 87.5%, while the additional chosen plants were P412, P428, P215 and P39 (81% - 84%). All these plants were used to develop BC2F1 generation. The six BC2F1 plants were used to develop BC3F1 and BC2F2 were the plants number P422-11 and P422-14 having 93.75% recipient alleles and P422-12, P422-3, P39-17, P39-25 having 92.25% recipient alleles. Total of 445 BC3F1 plants were confirmed the introgresion of SUB1 using ART5 and SC3. After three generations of backcrossing, application of MABC resulted in the best BC3F1 individual P422-14-177 with 100% of recipient alleles based on the number of 53 markers used with only the introgression size of SUB1 was 0.3Mb between ART5 and SC3. Phenotyping was carried out on BC3F1 and BC2F2 of the selected lines. The survival ratio of these selected lines and IR64SUB1 were the same. It convinced the successfully introgress SUB1 into AS996 rice variety. The breeding line BC4F1 having 100% genetic background of donor variety is ready for develop new submergence tolerant rice variety ASS996-SUB1 to cope with climate change.

关键词： AS996-SUB1 Climate Change Marker-Assisted Backcrossing (MABC) Rice Submergence

Diagnostic Performance of glmM Gene and Histological Stains for Detection of Helicobacter pylori in Gastric Biopsy from Patients Admitted to Wad Madani Teaching Hospital, Sudan

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Prediction of Salt Tolerance in Rice （Oryza Sativa） Based on Shoot Ion Content under Non-Stressed Conditions

Natural Science（自然科学期刊） 2022年第8期

作者： karima ali hamid albadawi abdelbagi talha abdalraheem ali babiker mohammed ibrahim malik adam dawoud abakar omer mustafa elsidig a saeed mohmed bushra ahmed elhadi abdalla ahmed

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材料科学与工程（中英文A版） 2016年第1期6卷 1-16页

作者： Souleymane Bado Brian Peter Forster Roman Padilla-Alvarez Christian Resch Alessandro Migliori Yacouba Diawara Milko Jaksic abdelbagi Mukhtar Ali Ghanim Stephen Nielen Margit Laimer Plant Breeding and Genetics Laboratory (PBGL) Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture IAEA Laboratories Seibersdorf International Atomic Energy Agency PO Box 100 Wagramerstrasse 5 A-1400 Vienna Austria Current address: BioHybrids International Ltd P.O. Box 2411 Earley Reading RG6 5FY United Kingdom Physics Chemistry and Instrumentation Laboratory IAEA Laboratories Seibersdorf International Atomic Energy Agency POBox 100 Wagramerstrasse 5 A-1400 Vienna Austria Soil and Water Management and Crop Nutrition Laboratory (SWMCNL) Joint FAO/IAEA Division of Nuclear Techniques inFood and Agriculture IAEA Laboratories Seibersdorf International Atomic Energy Agency PO Box 100 Wagramerstrasse 5A-1400 Vienna Austria Institut Ruder Boskovic Bijenicka cesta 54 10000 Zagreb Croatia Plant Biotechnology Unit Department of Biotechnology University of Natural Resources and Applied Life Sciences Muthgasse 18 A-1190 Vienna Austria

Salt is a major abiotic stress threatening crop plants such as rice. Tolerance to salt is complex and regulated by numerous genetic and non-genetic factors. To date most screens for salt tolerance rely on plant performance in stressed conditions. This article describes the ability to screen for salt tolerance in non-stressed conditions. The work is based on correlations between 62 rice genotypes in salt stress and non-stress conditions and measuring the intake of elements using Particle Induced X-ray Emission and X-ray Fluorescence. Roots and shoots were analysed though shoots provided easier and more robust materials to work with. Data were interpreted using multivariate statistical analysis which showed the intake ratio of elements across tolerant, moderately tolerant and susceptible rice genotypes. Tolerant genotypes exhibited a larger intake of elements, and a classification criteria based on Canonical Discriminant Analysis allowed differentiation of salt tolerant genotypes not only under salt stress but, significantly, also under non-stressed conditions. Thus, shoot element content in benign conditions can be used as an indicator for salt tolerance. These studies suggest that many salt tolerance mechanisms in rice cultivars are constitutive, they are not switched on by stress, and this has implications for physiological and genetic studies, especially in crop plants. The approach has practical application as it allows pre-screening in non-stressed conditions, from which candidate salt tolerant genotypes may be selected for subsequent testing in saline field conditions, selecting in benign conditions provides greater seed harvest of the next generation which can be used in multiple tests.

关键词：水稻基因型耐盐性 Oryza 离子含量应激非遗传因素多变量统计分析元素含量

Induced Mutation for Developing Mutant Rice Lines Tolerant to the Parasitic Weed Striga asiatica (L.) Kuntze

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Journal of Environmental Science and Engineering(A) 2019年第5期8卷 181-192页

作者： Noronirina Victorine Rakotoarisoa Harimialimalala Jhonny Rabefiraisana Lydia Razafinirina Berthe Rasoamampionona Xavier Roland Rakotonjanahary abdelbagi Ali Ghanim Mukhtar Ljupcho Jankuloski Alice Andrianjaka Plant Physiology Laboratory the Department of Plant Biology and Ecology at the Faculty of Sciences-BP:906University of AntananarivoMadagascar Departement de Recherches Rizicoles FOFIFACentre National de Recherche Appliquée au Développement RuralBP:1690101-AntananarivoMadagascar Plant Breeding and Genetics Laboratory Seibersdorf LaboratoryJoint FAO/IAEA ProgrammeIAEA-LaboratoriesA-2444Austria Plant Breeding and Genetics Section Joint FAO/IAEA Division of Nuclear Techniques in Food and AgricultureDepartment of Nuclear Sciences and ApplicationsInternational Atomic Energy AgencyA-1400 ViennaAustria

This work aims to screen mutant rice lines tolerant to Striga *** rainfed sensitive rice varieties B22 and F154 were *** survival rates of the two parents were significantly lower respectively(9.74a and 11.83a)than those of mutant lines(55.36c to 74.36b);Striga plants emergence/pot were significantly higher for the parents(13.96c and14.89c)compared to the mutants(0.12a to 1.5b);the infection rate of parents(7.37b;7.86b)was higher compared to the mutants(2.27a to 2.74a);fertility rate/plant of parents was lower(20.98%b;22.29%b)but much higher than mutants(72.19%b to 78.35%b);the average panicle number/plant of parents was significantly lower(0.5a;1a)than those of mutants(1.5b to 2.4bc)and the 100 g grain weight of parents are lower(2.35a;2.56a)than those of mutants(3.19b to 3.23b).The culture of those mutant lines may increase rice production and contribute to enhancing food security in Madagascar.

关键词： Induced mutation mutant tolerant lines rice (Oryza sativa L.) parasitic weed Striga asiatica (L.) Kuntze.

Growth and Simulation Study of Glycine Sodium Nitrate Non-Linear Single Crystal

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Adherence to Preventive Measures during the COVID-19 Pandemic among University Students in Sudan

Advances in Materials Physics and Chemistry（材料物理与化学进展） 2021年第1期

作者： Wafa S. Abdelrahman Abdelrazig M. abdelbagi Abbaker A. Abdalla Mubarak E. Ahmed

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