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1. The significance and functions of ethylene in flooding stress tolerance in plants

Author:
Ismail, Abdelbagi M.,   et al.   ; Khan, M. Iqbal R.; Trivellini, Alice; Chhillar, Himanshu; Chopra, Priyanka; Ferrante, Antonio; Khan, Nafees A.;     Show all 7 Authors
Source:
Environmental and experimental botany 2020 v.179 pp. 104188
ISSN:
0098-8472
Subject:
abiotic stress; biochemical pathways; climate change; crops; ethylene; ethylene production; flooded conditions; food production; plant adaptation; plant growth; plant response; rice; soil; stress tolerance; submergence
Abstract:
... Climate change has increased the global environmental risks, especially the impacts of abiotic stresses on agriculture productivity. Among the abiotic stresses aggravated by climate change, flooding (complete submergence, stagnant flooding, soil waterlogging) has been identified as a major stress for plant growth and food production worldwide. Improving crop plants adaptation to flooding condition ...
DOI:
10.1016/j.envexpbot.2020.104188

2. Growth, productivity and grain quality of AG1 and AG2 QTLs introgression lines under flooding in direct-seeded rice system

Author:
Ismail, Abdelbagi M.,   et al.   ; Mondal, Satyen; Khan, M. Iqbal R.; Dixit, Shalabh; Sta. Cruz, Pompe C.; Septiningsih, Endang M.;     Show all 6 Authors
Source:
Field crops research 2020 v.248 pp. 107713
ISSN:
0378-4290
Subject:
area; decline; depth; direct seeding; field crops; flooded conditions; genotype; germination; grain yield; hypoxia; introgression; irrigated farming; panicles; parents; phytomass; plant establishment; research; rice; seedling emergence; seedling growth; soil; varieties; water; yield components
Abstract:
... Early flooding after direct seeding induces anaerobic condition during germination or anaerobic germination (AG), which severely reduces crop establishment in both rainfed and irrigated areas. Seeds germinating in flooded soils could encounter hypoxia or even anoxia in severe cases, and this hinders germination and seedling growth. The study evaluated the effects of incorporating two major QTLs, A ...
DOI:
10.1016/j.fcr.2019.107713

3. Mechanisms associated with tiller suppression under stagnant flooding in rice

Author:
Ismail, Abdelbagi M.,   et al.   ; Zhu, Guanglong; Chen, Yutiao; Ella, Evangelina S.;     Show all 4 Authors
Source:
Journal of agronomy and crop science 2019 v.205 no.2 pp. 235-247
ISSN:
0931-2250
Subject:
biomass; carbohydrates; chlorophyll; developmental stages; energy balance; genotype; grain yield; hydrogen peroxide; leaves; malondialdehyde; plant height; rice; roots; shoots; stem elongation; stems; tillering; vegetative growth
Abstract:
... Stagnant flooding (SF) during vegetative growth triggers stem elongation usually at the cost of tiller production in rice, reducing grain yield. To explore physiological mechanisms associated with tillering suppression under SF, three contrasting genotypes (Swarna and Swarna‐Sub1, both sensitive and IRRI154, tolerant) were evaluated under standing water depths of 0, 5, 30 and 50 cm. SF significant ...
DOI:
10.1111/jac.12316

4. Crop and Residue Management Improves Productivity and Profitability of Rice–Maize System in Salt-Affected Rainfed Lowlands of East India

Author:
Ismail, Abdelbagi M.,   et al.   ; Sarangi, Sukanta K.; Singh, Sudhanshu; Srivastava, Ashish K.; Choudhary, Madhu; Mandal, Uttam K.; Lama, Tashi D.; Mahanta, Kshirendra K.; Kumar, Virender; Sharma, Parbodh C.;     Show all 10 Authors
Source:
Agronomy 2020 v.10 no.12
ISSN:
2073-4395
Subject:
administrative management; agronomy; coasts; corn; crop residues; crops; direct seeding; dry season; ecosystems; fallow; farmers; floods; freshwater; grain yield; hybrids; irrigation; irrigation water; land; lowlands; plant establishment; production costs; profitability; rice; salinity; soil conservation; soil salinity; soil water; varieties; water requirement; wet season; India; South East Asia
Abstract:
... This study was conducted over 3 years in a salt-affected coastal rainfed lowland ecosystem. Farmers most commonly grow tall rice varieties in the wet season to cope with flash and/or stagnant floods, leading to large amounts of rice residue production. Most of the land remains fallow during the dry season because of increased salinity and scarcity of freshwater for irrigation. The study aims to pr ...
DOI:
10.3390/agronomy10122019

5. Morpho-Physiological Changes in Roots of Rice Seedling upon Submergence

Author:
Ismail, Abdelbagi M.,   et al.   ; Bui, Liem T.; Ella, Evangelina S.; Dionisio-Sese, Maribel L.;     Show all 4 Authors
Source:
Rice science 2019 v.26 no.3 pp. 167-177
ISSN:
1672-6308
Subject:
chlorophyll; crop production; electrolytes; energy; environmental factors; flooding tolerance; genotype; malondialdehyde; physiological response; rain; rice; root growth; roots; seedlings; shoots; starch; submergence; sugars; survival rate
Abstract:
... Submergence is a serious environmental condition that causes large loss in rice production in rain fed lowland and flood affected area. This study evaluated morphological and physiological responses of rice roots to submergence using two tolerant rice genotypes FR13A and Swarna-Sub 1 and two sensitive ones Swarna and IR42. The tolerant genotypes had higher survival rate and less shoot elongation b ...
DOI:
10.1016/j.rsci.2019.04.003

6. Mechanistic understanding of iron toxicity tolerance in contrasting rice varieties from Africa: 1. Morpho-physiological and biochemical responses

Author:
Ismail, Abdelbagi M.,   et al.   ; Onyango, Dorothy A.; Entila, Fredrickson; Dida, Mathew M.; Drame, Khady N.;     Show all 5 Authors
Source:
Functional plant biology 2019 v.46 no.1 pp. 93-105
ISSN:
1445-4408
Subject:
biochemical mechanisms; breeding programs; cell membranes; chlorophyll; fluorescence; homeostasis; iron; metabolites; photosynthesis; pigments; rice; roots; shoots; starch; stomatal conductance; sugars; tissues; toxicity; water content; Africa
Abstract:
... Iron (Fe) is a fundamental element involved in various plant metabolic processes. However, when Fe uptake is excessive, it becomes toxic to the plant and disrupts cellular homeostasis. The aim of this study was to determine the physiological and biochemical mechanisms underlying tolerance to Fe toxicity in contrasting rice varieties adapted to African environments. Four varieties (CK801 and Suakok ...
DOI:
10.1071/FP18129

7. Balance between nitrogen use efficiency and cadmium tolerance in Brassica napus and Arabidopsis thaliana

Author:
Ismail, Abdelbagi M.,   et al.   ; Liao, Qiong; Jian, Shao-Fen; Song, Hai-Xing; Guan, Chun-Yun; Lepo, Joe Eugene; Zhang, Zhen-Hua;     Show all 7 Authors
Source:
Plant science 2019 v.284 pp. 57-66
ISSN:
0168-9452
Subject:
Arabidopsis thaliana; Brassica napus; H-transporting ATP synthase; cadmium; energy; gene overexpression; genotype; metal tolerance; mutants; nitrates; nutrient use efficiency; phytoremediation; proton pump; stress response; tonoplast; vacuoles
Abstract:
... The transmembrane transport of NO3− and Cd2+ into plant cell vacuoles relies on the energy from their tonoplast proton pumps, V-ATPase and V-PPase. If the activity of these pumps is reduced, it results in less NO3− and Cd2+ being transported into the vacuoles, which contributes to better nitrogen use efficiency (NUE) and lower Cd2+ tolerance in plants. The physiological mechanisms that regulate th ...
DOI:
10.1016/j.plantsci.2019.04.003

8. Physiological Responses of Contrasting Rice Genotypes to Salt Stress at Reproductive Stage

Author:
Ismail, Abdelbagi M.,   et al.   ; Gerona, Maria Elisa B.; Deocampo, Marjorie P.; Egdane, James A.; Dionisio-Sese, Maribel L.;     Show all 5 Authors
Source:
Rice science 2019 v.26 no.4 pp. 207-219
ISSN:
1672-6308
Subject:
Oryza sativa; breeding; chlorophyll; flowering; genetic variation; genotype; greenhouse experimentation; leaves; malondialdehyde; panicles; phenotype; physiological response; plant growth; pollen; potassium; proline; rice; salinity; salt stress; salt tolerance; seedlings; sodium; viability
Abstract:
... Salinity is a major abiotic stress affecting plant growth and productivity. Considerable genetic variation is present in rice in response to salt stress, with higher sensitivity during early seedling and reproductive stage. In this study, physiological changes in leaves and developing panicles of rice genotypes (IR686, Sadri, Rc222, CSR28, IR670 and Pokkali) contrasting in salt tolerance at the re ...
DOI:
10.1016/j.rsci.2019.05.001

9. Assessing trait contribution and mapping novel QTL for salinity tolerance using the Bangladeshi rice landrace Capsule

Author:
Ismail, Abdelbagi M.,   et al.   ; Rahman, M. Akhlasur; Thomson, Michael J.; De Ocampo, Marjorie; Egdane, James A.; Salam, M. A.; Shah-E-Alam, M.;     Show all 7 Authors
Source:
Rice 2019 v.12 no.1 pp. 63
ISSN:
1939-8425
Subject:
breeding; chromosome mapping; epistasis; genotype; genotyping; landraces; linkage groups; loci; microsatellite repeats; phenotype; potassium; quantitative trait loci; rice; salinity; salt stress; salt tolerance; seedlings; sodium
Abstract:
... BACKGROUND: Salinity is one of the most widespread abiotic stresses affecting rice productivity worldwide. The purpose of this study was to establish the relative importance of different traits associated with salinity tolerance in rice and to identify new quantitative trait loci (QTL) conferring tolerance to salinity at seedling stage. A total of 231 F₂:₃ plants derived from a cross between a sen ...
DOI:
10.1186/s12284-019-0319-5
PubMed:
31410650
PubMed Central:
PMC6692794

10. Fundamental parenchyma cells are involved in Na+ and Cl– removal ability in rice leaf sheath

Author:
Ismail, Abdelbagi M.,   et al.   ; Neang, Sarin; de Ocampo, Marjorie; Egdane, James A.; Platten, John D.; Skoulding, Nicola S.; Kano-Nakata, Mana; Yamauchi, Akira; Mitsuya, Shiro;     Show all 9 Authors
Source:
Functional plant biology 2019 v.46 no.8 pp. 743-755
ISSN:
1445-4408
Subject:
Oryza sativa; genotype; ions; leaves; photosynthesis; rice; salt tolerance; shoots; sodium; sodium chloride; xylem vessels
Abstract:
... Salt sensitivity in rice plants is associated with the accumulated amount of Na+ and Cl- in shoots and, more significantly, in photosynthetic tissues. Therefore, salt removal ability at the leaf sheath level is an important mechanism of salt tolerance. In the present study we attempted to determine whether rice leaf sheaths excluded Cl- as well as Na+, and to identify the tissues that were involve ...
DOI:
10.1071/FP18318

11. Novel Sources of aus Rice for Zinc Deficiency Tolerance Identified Through Association Analysis Using High-Density SNP Array

Author:
Ismail, Abdelbagi M.,   et al.   ; Lee, Jae-Sung; Wissuwa, Matthias; Zamora, Oscar B.;     Show all 4 Authors
Source:
Rice science 2018 v.25 no.5 pp. 293-296
ISSN:
1672-6308
Subject:
ascorbic acid; genes; genotype; loci; microarray technology; nutrient deficiencies; photosynthesis; rice; single nucleotide polymorphism; soil; vigor; zinc
Abstract:
... Zinc (Zn) deficiency is a major soil constraint limiting rice crop growth and yield, yet the genetic control of tolerance mechanisms is still poorly understood. Here, we presented promising loci and candidate genes conferring tolerance to Zn deficiency and identified through association analysis using a 365K single nucleotide polymorphism (SNP) marker array in a diverse aus (semi-wild type rice) p ...
DOI:
10.1016/j.rsci.2018.08.004

12. Describing the physiological responses of different rice genotypes to salt stress using sigmoid and piecewise linear functions

Author:
Ismail, Abdelbagi M.,   et al.   ; Radanielson, Ando M.; Angeles, Olivyn; Li, Tao; Gaydon, Donald S.;     Show all 5 Authors
Source:
Field crops research 2018 v.220 pp. 46-56
ISSN:
0378-4290
Subject:
biomass production; breeding; genetic variation; genotype; greenhouse production; growth retardation; leaf conductance; leaves; photosynthesis; physiological response; phytomass; rice; salinity; salt stress; salt tolerance; screening; simulation models; soil salinity; staple foods; vegetative growth; South East Asia
Abstract:
... Rice is the staple food for almost half of the world population. In South and South East Asia, about 40% of rice production is from deltaic regions that are vulnerable to salt stress. A quantitative approach was developed for characterizing genotypic variability in biomass production, leaf transpiration rate and leaf net photosynthesis responses to salinity during the vegetative stage, with the ai ...
DOI:
10.1016/j.fcr.2017.05.001
PubMed:
29725160
PubMed Central:
PMC5890386

13. Agronomic manipulations can enhance the productivity of anaerobic tolerant rice sown in flooded soils in rainfed areas

Author:
Ismail, Abdelbagi M.,   et al.   ; Lal, B.; Gautam, Priyanka; Nayak, A.K.; Raja, R.; Shahid, M.; Tripathi, R.; Singh, Sudhanshu; Septiningsih, Endang M.;     Show all 9 Authors
Source:
Field crops research 2018 v.220 pp. 105-116
ISSN:
0378-4290
Subject:
anaerobic conditions; biomass production; cultivars; direct seeding; embryogenesis; farmers; flooded conditions; floods; genotype; germination; grain yield; income; isogenic lines; landraces; leaf area; lowlands; nitrogen; phosphorus; plant establishment; potassium; production costs; quantitative trait loci; rice; seedling emergence; seedling growth; soil; starch; sugars; tillers
Abstract:
... Poor seedling emergence and establishment are a major restraint for adopting direct seeding in rice. This is especially critical in rainfed lowlands where floods can occur immediately after sowing, creating anaerobic conditions during germination and early seedling growth. Developing rice cultivars that can germinate in flooded soils will ensure good crop establishment. Several major quantitative ...
DOI:
10.1016/j.fcr.2016.08.026

14. Development of salt tolerant IR64 near isogenic lines through marker-assisted breeding

Author:
Ismail, Abdelbagi M.,   et al.   ; Ho, Viet The; Thomson, Michael J.;     Show all 3 Authors
Source:
Journal of crop science and biotechnology 2016 v.19 no.5 pp. 373-381
ISSN:
1975-9479
Subject:
backcrossing; chromosomes; cost effectiveness; electrical conductivity; genetic markers; genome; genotype; grain yield; introgression; isogenic lines; marker-assisted selection; plant breeding; quantitative trait loci; rice; salinity; salt stress; salt tolerance; sodium chloride
Abstract:
... Salt stress causes considerable damage to rice with a consequent reduction in grain yield, however, conventional breeding for this stress is time-consuming and costly. Recently, marker-assisted breeding has shown enormous potential to accelerate breeding of stress tolerant varieties because of its precision, time saving, and cost effectiveness. The present study was carried out to transfer Saltol, ...
DOI:
10.1007/s12892-016-0049-9

15. Understanding the regulation of iron nutrition: can it contribute to improving iron toxicity tolerance in rice?

Author:
Ismail, Abdelbagi M.,   et al.   ; Onaga, Geoffrey; Dramé, Khady Nani;     Show all 3 Authors
Source:
Functional plant biology 2016 v.43 no.8 pp. 709-726
ISSN:
1445-4408
Subject:
Arabidopsis thaliana; Oryza sativa; breeding; genes; iron; models; nutrient deficiencies; plant nutrition; plant tissues; rhizosphere; rice; soil; toxicity
Abstract:
... Iron nutrition in plants is highly regulated in order to supply amounts sufficient for optimal growth while preventing deleterious effects. In response to iron deficiency, plants induce either reduction-based or chelation-based mechanisms to enhance iron uptake from the soil. Major physiological traits and genes involved in these mechanisms have been fairly well described in model plants like Arab ...
DOI:
10.1071/FP15305

16. Biochemical indicators of root damage in rice (Oryza sativa) genotypes under zinc deficiency stress

Author:
Ismail, Abdelbagi M.,   et al.   ; Lee, Jae-Sung; Wissuwa, Matthias; Zamora, Oscar B.;     Show all 4 Authors
Source:
Journal of plant research 2017 v.130 no.6 pp. 1071-1077
ISSN:
0918-9440
Subject:
Oryza sativa; acetates; alpha-glycerophosphoric acid; antioxidant activity; biomass; crop production; gas chromatography-mass spectrometry; genotype; high performance liquid chromatography; hydroponics; leaves; metabolites; nutrient deficiencies; oxidative stress; rice; roots; soil; solutes; zinc
Abstract:
... Zn deficiency is one of the major soil constraints currently limiting rice production. Although recent studies demonstrated that higher antioxidant activity in leaf tissue effectively protects against Zn deficiency stress, little is known about whether similar tolerance mechanisms operate in root tissue. In this study we explored root-specific responses of different rice genotypes to Zn deficiency ...
DOI:
10.1007/s10265-017-0962-0

17. Genetic dissection for zinc deficiency tolerance in rice using bi-parental mapping and association analysis

Author:
Ismail, Abdelbagi M.,   et al.   ; Lee, Jae-Sung; Sajise, Andres Godwin C.; Gregorio, Glenn B.; Kretzschmar, Tobias; Wissuwa, Matthias;     Show all 6 Authors
Source:
Theoretical and applied genetics 2017 v.130 no.9 pp. 1903-1914
ISSN:
0040-5752
Subject:
Oryza sativa; alleles; backcrossing; biomass production; chromosomes; data collection; gene expression regulation; genetic factors; genome-wide association study; grain yield; haplotypes; nutrient deficiencies; promoter regions; quantitative trait loci; rice; roots; salinity; salt stress; shoots; single nucleotide polymorphism; soil; zinc
Abstract:
... KEY MESSAGE: Zinc deficiency is a widespread soil constraint in rice production. Here, we present QTL/candidate genes associated with Zn deficiency tolerance identified through bi-parental QTL mapping and genome-wide association analysis. Zinc (Zn) deficiency is a widespread soil constraint in rice production. Despite several physiological studies elucidating Zn deficiency tolerance mechanisms, li ...
DOI:
10.1007/s00122-017-2932-2

18. Participatory evaluation guides the development and selection of farmers’ preferred rice varieties for salt- and flood-affected coastal deltas of South and Southeast Asia

Author:
Ismail, Abdelbagi M.,   et al.   ; Burman, D.; Maji, B.; Singh, Sudhanshu; Mandal, Subhasis; Sarangi, Sukanta K.; Bandyopadhyay, B.K.; Bal, A.R.; Sharma, D.K.; Krishnamurthy, S.L.; Singh, H.N.; delosReyes, A.S.; Villanueva, D.; Paris, T.; Singh, U.S.; Haefele, S.M.;     Show all 16 Authors
Source:
Field crops research 2018 v.220 pp. 67-77
ISSN:
0378-4290
Subject:
abiotic stress; breeding lines; breeding programs; coasts; disease resistance; dry season; farmers; females; flooded conditions; grain yield; livelihood; lodging; lowlands; males; market value; monsoon season; new variety; pests; rice; salt tolerance; soil salinity; staple foods; water salinity; wet season; South East Asia
Abstract:
... Rice is the staple food and provides livelihood for smallholder farmers in the coastal delta regions of South and Southeast Asia. However, its productivity is often low because of several abiotic stresses including high soil salinity and waterlogging during the wet (monsoon) season and high soil and water salinity during the dry season. Development and dissemination of suitable rice varieties tole ...
DOI:
10.1016/j.fcr.2017.03.009
PubMed:
29725161
PubMed Central:
PMC5890383

19. Physiological basis of tolerance to complete submergence in rice involves genetic factors in addition to the SUB1 gene

Author:
Ismail, Abdelbagi M.,   et al.   ; Singh, Sudhanshu; Mackill, David J.;     Show all 3 Authors
Source:
AoB Plants 2014 v.6 no.0 pp. plu060
Subject:
biomass; carbohydrates; cultivars; genes; genotype; landraces; leaves; loci; rice; shoots; submergence; tillers
Abstract:
... Complete submergence reduces survival and yield of modern high-yielding rice cultivars. Tolerant cultivars carrying the SUB1 locus were recently developed. We evaluated survival and growth processes occurring during submergence and recovery that are associated with SUB1 in contrasting genotypes. Sub1 cultivars showed less reduction in shoot biomass and better regulation of non-structural carbohydr ...
DOI:
10.1093/aobpla/plu060
PubMed:
25281725
PubMed Central:
PMC4243076

20. Exogenous abscisic acid promotes the nitrogen use efficiency of Brassica napus by increasing nitrogen remobilization in the leaves

Author:
Ismail, Abdelbagi M.,   et al.   ; Han, Yong-Liang; Liao, Jia-Yuan; Yu, Yin; Song, Hai-Xing; Rong, Nan; Guan, Chun-Yun; Lepo, Joe Eugene; Zhang, Zhen-Hua;     Show all 9 Authors
Source:
Journal of plant nutrition 2017 v.40 no.18 pp. 2540-2549
ISSN:
1532-4087
Subject:
Brassica napus; abscisic acid; biosynthesis; enzyme activity; free amino acids; glutamate-ammonia ligase; glutamine; leaves; nitrogen; nutrient use efficiency; phloem; proteinases; proteins; sap; stable isotopes; sugar content
Abstract:
... The effect of exogenous abscisic acid (ABA) on the nitrogen use efficiency (NUE) of Brassica napus was studied by pot experiments using ABA (1 mg L⁻¹) daubed on the leaves at the early siliquing stage. The results showed that activities of proteases and glutamine synthetase (GS) were significantly promoted by the ABA treatment, which increased the capacity of degradation of foliar proteins and bio ...
DOI:
10.1080/01904167.2017.1380821