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Li G, Wu J, Kronzucker HJ, Li B, Shi W. Physiological and molecular mechanisms of plant-root responses to iron toxicity. JOURNAL OF PLANT PHYSIOLOGY 2024; 297:154257. [PMID: 38688043 DOI: 10.1016/j.jplph.2024.154257] [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: 03/29/2024] [Revised: 04/17/2024] [Accepted: 04/22/2024] [Indexed: 05/02/2024]
Abstract
The chemical form and physiological activity of iron (Fe) in soil are dependent on soil pH and redox potential (Eh), and Fe levels in soils are frequently elevated to the point of causing Fe toxicity in plants, with inhibition of normal physiological activities and of growth and development. In this review, we describe how iron toxicity triggers important physiological changes, including nitric-oxide (NO)-mediated potassium (K+) efflux at the tips of roots and accumulation of reactive oxygen species (ROS) and reactive nitrogen (RNS) in roots, resulting in physiological stress. We focus on the root system, as the first point of contact with Fe in soil, and describe the key processes engaged in Fe transport, distribution, binding, and other mechanisms that are drawn upon to defend against high-Fe stress. We describe the root-system regulation of key physiological processes and of morphological development through signaling substances such as ethylene, auxin, reactive oxygen species, and nitric oxide, and discuss gene-expression responses under high Fe. We especially focus on studies on the physiological and molecular mechanisms in rice and Arabidopsis under high Fe, hoping to provide a valuable theoretical basis for improving the ability of crop roots to adapt to soil Fe toxicity.
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Affiliation(s)
- Guangjie Li
- State Key Laboratory of Nutrient Use and Management, Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Jinan, 250100, China.
| | - Jinlin Wu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of the Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing, 100049, China
| | - Herbert J Kronzucker
- School of BioSciences, The University of Melbourne, Parkville, VIC, 3010, Australia.
| | - Baohai Li
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang, China.
| | - Weiming Shi
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; International Research Centre for Environmental Membrane Biology, Foshan University, Foshan, 528000, China; University of the Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing, 100049, China.
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Wiśniewska M, Wawrzkiewicz M, Urban T, Chibowski S, Rzepa G, Hałabuza J, Bajda T. Feroxyhyte - from synthesis and characterization to application. Chemphyschem 2024; 25:e202300836. [PMID: 38266193 DOI: 10.1002/cphc.202300836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 01/26/2024]
Abstract
Feroxyhyte (δ-FeOOH) was synthesized and characterized using X-ray diffractometry (XRD), simultaneous thermal analysis (STA), scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM-EDS), and low-temperature nitrogen adsorption-desorption measurements. Its potential application as adsorbent of an anionic and cationic dyes such as C.I. Acid Violet 1 (AV1) and C.I. Basic Blue 3 (BB3) was investigated by determining the adsorption capacities based on the Langmuir (36.6 mg/g for AV1 and 187 mg/g for BB3), Freundlich and Dubinin-Radushkevich isotherm models. Adsorption of AV1 and BB3 by δ-FeOOH drops with the presence of additives such as cationic and anionic surfactants (CTAB, SDS) and ionic polymers (PAA, PEI). The surface and electrokinetic properties of examined suspensions were also described. They include determination of the solid surface charge density and the zeta potential, as well as values of point of zero charge and isoelectric point of feroxyhyte particles without and with adsorbed layers of organic substances. Their analysis made possible to propose the most probable structure of electrical double layer formed at the iron mineral/aqueous solution interface.
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Affiliation(s)
- Małgorzata Wiśniewska
- Department of Radiochemistry and Environmental Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie- Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031, Lublin, Poland
| | - Monika Wawrzkiewicz
- Department of Inorganic Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031, Lublin, Poland
| | - Teresa Urban
- Department of Radiochemistry and Environmental Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie- Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031, Lublin, Poland
| | - Stanisław Chibowski
- Department of Radiochemistry and Environmental Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie- Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031, Lublin, Poland
| | - Grzegorz Rzepa
- Department of Mineralogy, Petrography and Geochemistry, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Krakow, A. Mickiewicz 30 Av., 30-059, Kraków, Poland
| | - Justyna Hałabuza
- Department of Mineralogy, Petrography and Geochemistry, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Krakow, A. Mickiewicz 30 Av., 30-059, Kraków, Poland
| | - Tomasz Bajda
- Department of Mineralogy, Petrography and Geochemistry, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Krakow, A. Mickiewicz 30 Av., 30-059, Kraków, Poland
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Guha PK, Magar ND, Kommana M, Barbadikar KM, Suneel B, Gokulan C, Lakshmi DV, Patel HK, Sonti RV, Sundaram RM, Madhav MS. Strong culm: a crucial trait for developing next-generation climate-resilient rice lines. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2024; 30:665-686. [PMID: 38737321 PMCID: PMC11087419 DOI: 10.1007/s12298-024-01445-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 03/24/2024] [Accepted: 03/27/2024] [Indexed: 05/14/2024]
Abstract
Lodging, a phenomenon characterized by the bending or breaking of rice plants, poses substantial constraints on productivity, particularly during the harvesting phase in regions susceptible to strong winds. The rice strong culm trait is influenced by the intricate interplay of genetic, physiological, epigenetic, and environmental factors. Stem architecture, encompassing morphological and anatomical attributes, alongside the composition of both structural and non-structural carbohydrates, emerges as a critical determinant of lodging resistance. The adaptive response of the rice culm to various biotic and abiotic environmental factors further modulates the propensity for lodging. Advancements in next-generation sequencing technologies have expedited the genetic dissection of lodging resistance, enabling the identification of pertinent genes, quantitative trait loci, and novel alleles. Concurrently, contemporary breeding strategies, ranging from biparental approaches to more sophisticated methods such as multi-parent-based breeding, gene pyramiding, genomic selection, genome-wide association studies, and haplotype-based breeding, offer perspectives on the genetic underpinnings of culm strength. This review comprehensively delves into physiological attributes, culm histology, epigenetic determinants, and gene expression profiles associated with lodging resistance, with a specialized focus on leveraging next-generation sequencing for candidate gene discovery.
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Affiliation(s)
- Pritam Kanti Guha
- Department of Biotechnology, ICAR-Indian Institute of Rice Research, Hyderabad, India
- Department of Microbiology, Yogi Vemana University., Y.S.R Kadapa, India
| | - Nakul D. Magar
- Department of Biotechnology, ICAR-Indian Institute of Rice Research, Hyderabad, India
| | - Madhavilatha Kommana
- Department of Biotechnology, ICAR-Indian Institute of Rice Research, Hyderabad, India
| | - Kalyani M. Barbadikar
- Department of Biotechnology, ICAR-Indian Institute of Rice Research, Hyderabad, India
| | - B. Suneel
- Department of Biotechnology, ICAR-Indian Institute of Rice Research, Hyderabad, India
| | - C. Gokulan
- Department of Biotechnology, CSIR-Center for Cellular and Molecular Biology, Hyderabad, India
| | - D. Vijay Lakshmi
- Department of Microbiology, Yogi Vemana University., Y.S.R Kadapa, India
| | - Hitendra Kumar Patel
- Department of Biotechnology, CSIR-Center for Cellular and Molecular Biology, Hyderabad, India
| | - Ramesh V. Sonti
- Department of Biotechnology, CSIR-Center for Cellular and Molecular Biology, Hyderabad, India
- International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - R. M. Sundaram
- Department of Biotechnology, ICAR-Indian Institute of Rice Research, Hyderabad, India
| | - Maganti Sheshu Madhav
- Department of Biotechnology, ICAR-Indian Institute of Rice Research, Hyderabad, India
- ICAR-Central Tobacco Research Institute, Rajahmundry, India
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Idoudi M, Slatni T, Laifa I, Rhimi N, Rabhi M, Hernández-Apaolaza L, Zorrig W, Abdelly C. Silicon (Si) mitigates the negative effects of iron deficiency in common bean (Phaseolus vulgaris L.) by improving photosystem activities and nutritional status. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108236. [PMID: 38064901 DOI: 10.1016/j.plaphy.2023.108236] [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: 08/01/2023] [Revised: 10/18/2023] [Accepted: 11/23/2023] [Indexed: 02/15/2024]
Abstract
Silicon (Si) is the second most abundant element in the Earth's crust after oxygen. Its beneficial impact on crop development and yield, particularly under stressful conditions such as iron (Fe) deficiency, has been well documented. Fe deficiency is a critical constraint that limits crop production globally. The objective of this study was to investigate the effects of silicon (Na2SiO3) on common bean (Phaseolus vulgaris L. 'Coco Rose' variety) under iron-deficient conditions. The common bean plants were subjected to six treatments, which included three sufficient iron treatments (50 μM Fe) each paired with three varying silicon concentrations (0, 0.25, and 0.5 mM Si), and three iron-deficient treatments (0.1 μM Fe) each associated with the same silicon concentrations (0, 0.25, and 0.5 mM Si). The results indicate that iron deficiency had a negative impact on almost all the measured parameters. However, under silicon treatments, especially with 0.5 mM Si, the depressive effects of iron deficiency were significantly mitigated. The addition of 0.5 mM Si alleviated leaf chlorosis and improved biomass production, nutritional status, photosynthetic pigment content, photosynthetic gas exchange, and photosystem (PSI and PSII) activities. Interestingly, a greater beneficial effect of silicon was observed on PSII compared to PSI. This was accompanied by a significant augmentation in leaf iron concentration by 42%. Therefore, by enhancing the photosystem activities and nutritional status, among other mechanisms, silicon is capable of mitigating the adverse effects of iron-deficient conditions, making it a successful and effective solution to cope with this nutritional stress.
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Affiliation(s)
- Mariem Idoudi
- Laboratory of Extremophile Plants (LPE), Centre of Biotechnology of Borj Cedria (CBBC), P. O. Box 901, 2050, Hammam-Lif, Tunisia; Faculty of Sciences of Tunis (FST), University of Tunis El Manar (UTM), 1060, Tunis, Tunisia
| | - Tarek Slatni
- Laboratory of Extremophile Plants (LPE), Centre of Biotechnology of Borj Cedria (CBBC), P. O. Box 901, 2050, Hammam-Lif, Tunisia; Faculty of Sciences of Tunis (FST), University of Tunis El Manar (UTM), 1060, Tunis, Tunisia
| | - Israa Laifa
- Laboratory of Extremophile Plants (LPE), Centre of Biotechnology of Borj Cedria (CBBC), P. O. Box 901, 2050, Hammam-Lif, Tunisia
| | - Nassira Rhimi
- Laboratory of Extremophile Plants (LPE), Centre of Biotechnology of Borj Cedria (CBBC), P. O. Box 901, 2050, Hammam-Lif, Tunisia
| | - Mokded Rabhi
- Laboratory of Extremophile Plants (LPE), Centre of Biotechnology of Borj Cedria (CBBC), P. O. Box 901, 2050, Hammam-Lif, Tunisia; Department of Plant Production and Protection, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Lourdes Hernández-Apaolaza
- Department of Agricultural Chemistry and Food Science, Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Walid Zorrig
- Laboratory of Extremophile Plants (LPE), Centre of Biotechnology of Borj Cedria (CBBC), P. O. Box 901, 2050, Hammam-Lif, Tunisia.
| | - Chedly Abdelly
- Laboratory of Extremophile Plants (LPE), Centre of Biotechnology of Borj Cedria (CBBC), P. O. Box 901, 2050, Hammam-Lif, Tunisia
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Zheng T, Zhou Q, Tao Z, Ouyang S. Magnetic iron-based nanoparticles biogeochemical behavior in soil-plant system: A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166643. [PMID: 37647959 DOI: 10.1016/j.scitotenv.2023.166643] [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: 02/24/2023] [Revised: 07/31/2023] [Accepted: 08/26/2023] [Indexed: 09/01/2023]
Abstract
Increasing attention is being given to magnetic iron-based nanoparticles (MINPs) because of their potential environmental benefits. Owing to the earth abundance and high utilization of MINPs, as well as the significant functions of Fe in sustainable agriculture and environmental remediation, an understanding of the environmental fate of MINPs is indispensable. However, there are still knowledge gaps regarding the largely unknown environmental behaviors and fate of MINPs in soil-plant system. Thus, this review summarizes recent literature on the biogeochemical behavior (uptake, transportation, and transformation) of MINPs in soil and plants. The different possible uptake (e.g., foliar and root adsorption) and translocation (e.g., xylem, phloem, symplastic/apoplastic pathway, and endocytosis) pathways are discussed. Furthermore, drivers of MINPs uptake and transportation (e.g., soil characteristics, fertilizer treatments, copresence of inorganic and organic anions, meteorological conditions, and cell wall pores) in both soil and plant environments are summarized. This review also details the physical, chemical, and biological transformations of MINPs in soil-plant system. More importantly, a metadata analysis from the existing literature was employed to investigate the distinction between MINPs and other engineering nanoparticles biogeochemical behavior. In the future, more attention should be given to understanding the behavior of MINPs in soil-plant system and improving the capabilities of predictive models. This review thus highlights the main knowledge gaps regarding MINPs behavior and fate to provide guidance for their safe application in agrochemicals, crop production, and soil health.
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Affiliation(s)
- Tong Zheng
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Carbon Neutrality Interdisciplinary Science Center, Nankai University, Tianjin 300350, China; Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Qixing Zhou
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Carbon Neutrality Interdisciplinary Science Center, Nankai University, Tianjin 300350, China; Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Zongxin Tao
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Carbon Neutrality Interdisciplinary Science Center, Nankai University, Tianjin 300350, China; Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Shaohu Ouyang
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Carbon Neutrality Interdisciplinary Science Center, Nankai University, Tianjin 300350, China; Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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Sharma H, Shayaba, Kumar R, Kumar J, Bhadana D, Batra R, Singh R, Kumar S, Roy JK, Balyan HS, Gupta PK. Comparative analysis of VMT genes/proteins in selected plant species with emphasis on bread wheat (Triticum aestivum L.). Genes Genomics 2023; 45:1445-1461. [PMID: 37493927 DOI: 10.1007/s13258-023-01427-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 07/09/2023] [Indexed: 07/27/2023]
Abstract
BACKGROUND In recent years, the study of molecular basis of uptake, transport and utilization of grain Fe/Zn (GFe/GZn) in wheat has been an active area of research. As a result, it has been shown that a number of transporters are involved in uptake and transport of Fe. In a recent study, knockout of a transporter gene OsVMT (VACUOLAR MUGINEIC ACID TRANSPORTER) in rice was shown to be involved in Fe homoeostasis. OBJECTIVE In this study, we analysed VMT genes among six monocots and three dicots with major emphasis on wheat VMT genes (TaVMTs), taking OsVMT gene as a reference. METHODS AND RESULTS Using OsVMT gene as a reference, VMT genes were identified and sequence similarities were examined among six monocots and three dicots. Each VMT protein carried one functional domain and 7 to 10 distinct motifs (including 9 novel motifs). The qRT-PCR analysis showed differential expression by all the six TaVMT genes in pairs of contrasting wheat genotypes with high (FAR4 and WB02) and low (K8027 and HD3226) GFe/GZn at two different grain filling stages (14 DAA and 28 DAA). TaVMT1 genes showed up-regulation in high GFe/Zn genotypes relative to low GFe/Zn genotypes, whereas the TaVMT2 genes showed down-regulation or nonsignificant up-regulation in a few cases. CONCLUSIONS At 14 DAA, each of the six TaVMT genes exhibited higher expression in wheat genotypes with high GFe and GZn relative to those with low GFe and GZn, suggesting major role of VMT genes in improvement of grain Fe/Zn homoeostasis, thus making TaVMT genes useful for improvement in Fe/Zn in wheat grains.
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Affiliation(s)
- Hemant Sharma
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, UP, India
| | - Shayaba
- Multanimal Modi College, Modinagar, Ghaziabad, UP, India
| | - Rahul Kumar
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, UP, India.
| | - Jitendra Kumar
- National Agri-Food Biotechnology Institute, Mohali, Punjab, India
| | - Deepa Bhadana
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, UP, India
| | - Ritu Batra
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, UP, India
| | - Rakhi Singh
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, UP, India
| | - Sachin Kumar
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, UP, India
| | - Joy K Roy
- National Agri-Food Biotechnology Institute, Mohali, Punjab, India
| | - Harindra S Balyan
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, UP, India
| | - Pushpendra K Gupta
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, UP, India
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Tola AJ, Missihoun TD. Iron Availability Influences Protein Carbonylation in Arabidopsis thaliana Plants. Int J Mol Sci 2023; 24:ijms24119732. [PMID: 37298684 DOI: 10.3390/ijms24119732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/30/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Protein carbonylation is an irreversible form of post-translational modification triggered by reactive oxygen species in animal and plant cells. It occurs either through the metal-catalyzed oxidation of Lys, Arg, Pro, and Thr side chains or the addition of α, β-unsaturated aldehydes and ketones to the side chains of Cys, Lys, and His. Recent genetic studies concerning plants pointed to an implication of protein carbonylation in gene regulation through phytohormones. However, for protein carbonylation to stand out as a signal transduction mechanism, such as phosphorylation and ubiquitination, it must be controlled in time and space by a still unknown trigger. In this study, we tested the hypothesis that the profile and extent of protein carbonylation are influenced by iron homeostasis in vivo. For this, we compared the profile and the contents of the carbonylated proteins in the Arabidopsis thaliana wild-type and mutant-deficient in three ferritin genes under normal and stress conditions. Additionally, we examined the proteins specifically carbonylated in wild-type seedlings exposed to iron-deficient conditions. Our results indicated that proteins were differentially carbonylated between the wild type and the triple ferritin mutant Fer1-3-4 in the leaves, stems, and flowers under normal growth conditions. The profile of the carbonylated proteins was also different between the wild type and the ferritin triple mutant exposed to heat stress, thus pointing to the influence of iron on the carbonylation of proteins. Consistent with this, the exposure of the seedlings to iron deficiency and iron excess greatly influenced the carbonylation of certain proteins involved in intracellular signal transduction, translation, and iron deficiency response. Overall, the study underlined the importance of iron homeostasis in the occurrence of protein carbonylation in vivo.
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Affiliation(s)
- Adesola J Tola
- Groupe de Recherche en Biologie Végétale (GRBV), Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, 3351 Boul. des Forges, Trois-Rivières, QC G9A 5H7, Canada
| | - Tagnon D Missihoun
- Groupe de Recherche en Biologie Végétale (GRBV), Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, 3351 Boul. des Forges, Trois-Rivières, QC G9A 5H7, Canada
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Molnár Z, Solomon W, Mutum L, Janda T. Understanding the Mechanisms of Fe Deficiency in the Rhizosphere to Promote Plant Resilience. PLANTS (BASEL, SWITZERLAND) 2023; 12:1945. [PMID: 37653862 PMCID: PMC10224236 DOI: 10.3390/plants12101945] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 09/02/2023]
Abstract
One of the most significant constraints on agricultural productivity is the low availability of iron (Fe) in soil, which is directly related to biological, physical, and chemical activities in the rhizosphere. The rhizosphere has a high iron requirement due to plant absorption and microorganism density. Plant roots and microbes in the rhizosphere play a significant role in promoting plant iron (Fe) uptake, which impacts plant development and physiology by influencing nutritional, biochemical, and soil components. The concentration of iron accessible to these live organisms in most cultivated soil is quite low due to its solubility being limited by stable oxyhydroxide, hydroxide, and oxides. The dissolution and solubility rates of iron are also significantly affected by soil pH, microbial population, organic matter content, redox processes, and particle size of the soil. In Fe-limiting situations, plants and soil microbes have used active strategies such as acidification, chelation, and reduction, which have an important role to play in enhancing soil iron availability to plants. In response to iron deficiency, plant and soil organisms produce organic (carbohydrates, amino acids, organic acids, phytosiderophores, microbial siderophores, and phenolics) and inorganic (protons) chemicals in the rhizosphere to improve the solubility of poorly accessible Fe pools. The investigation of iron-mediated associations among plants and microorganisms influences plant development and health, providing a distinctive prospect to further our understanding of rhizosphere ecology and iron dynamics. This review clarifies current knowledge of the intricate dynamics of iron with the end goal of presenting an overview of the rhizosphere mechanisms that are involved in the uptake of iron by plants and microorganisms.
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Affiliation(s)
- Zoltán Molnár
- Department of Plant Sciences, Albert Kázmér Faculty of Mosonmagyaróvár, Széchenyi István University, H-9200 Mosonmagyaróvár, Hungary
| | - Wogene Solomon
- Department of Plant Sciences, Albert Kázmér Faculty of Mosonmagyaróvár, Széchenyi István University, H-9200 Mosonmagyaróvár, Hungary
| | - Lamnganbi Mutum
- Department of Plant Sciences, Albert Kázmér Faculty of Mosonmagyaróvár, Széchenyi István University, H-9200 Mosonmagyaróvár, Hungary
| | - Tibor Janda
- Agricultural Institute, Centre for Agricultural Research, H-2462 Martonvásár, Hungary
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Coelho DG, da Silva VM, Gomes Filho AAP, Oliveira LA, de Araújo HH, Farnese FDS, Araújo WL, de Oliveira JA. Bioaccumulation and physiological traits qualify Pistia stratiotes as a suitable species for phytoremediation and bioindication of iron-contaminated water. JOURNAL OF HAZARDOUS MATERIALS 2023; 446:130701. [PMID: 36603425 DOI: 10.1016/j.jhazmat.2022.130701] [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: 09/01/2022] [Revised: 12/12/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Serious concerns have recently been raised regarding the association of Fe excess with neurodegenerative diseases in mammals and nutritional and oxidative disorders in plants. Therefore, the current study aimed to understand the physiological changes induced by Fe excess in Pistia stratiotes, a species often employed in phytoremediation studies. P. stratiotes were subjected to five concentrations of Fe: 0.038 (control), 1.0, 3.0, 5.0 and 7.0 mM. Visual symptoms of Fe-toxicity such as bronzing of leaf edges in 5.0 and 7.0 mM-grown plants were observed after 5 days. Nevertheless, no major changes were observed in photosynthesis-related parameters at this time-point. In contrast, plants growing for 10 days in high Fe concentrations showed decreased chlorophyll concentrations and lower net CO2 assimilation rate. Notwithstanding, P. stratiotes accumulated high amounts of Fe, especially in roots (maximum of 10,000 µg g-1 DW) and displayed a robust induction of the enzymatic antioxidant system. In conclusion, we demonstrated that P. stratiotes can be applied to clean up Fe-contaminated water, as the species displays high Fe bioaccumulation, mostly in root apoplasts, and can maintain physiological processes under Fe excess. Our results further revealed that by monitoring visual symptoms, P. stratiotes could be applied for bioindication purposes.
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Affiliation(s)
- Daniel Gomes Coelho
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, 36570-000, Brazil
| | - Vinicius Melo da Silva
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, 36570-000, Brazil
| | | | | | - Hugo Humberto de Araújo
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, 36570-000, Brazil
| | | | - Wagner L Araújo
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, 36570-000, Brazil
| | - Juraci Alves de Oliveira
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Universidade Federal de Viçosa, Viçosa, MG, 36570-000, Brazil.
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Krishna TPA, Ceasar SA, Maharajan T. Biofortification of Crops to Fight Anemia: Role of Vacuolar Iron Transporters. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:3583-3598. [PMID: 36802625 DOI: 10.1021/acs.jafc.2c07727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Plant-based foods provide all the crucial nutrients for human health. Among these, iron (Fe) is one of the essential micronutrients for plants and humans. A lack of Fe is a major limiting factor affecting crop quality, production, and human health. There are people who suffer from various health problems due to the low intake of Fe in their plant-based foods. Anemia has become a serious public health issue due to Fe deficiency. Enhancing Fe content in the edible part of food crops is a major thrust area for scientists worldwide. Recent progress in nutrient transporters has provided an opportunity to resolve Fe deficiency or nutritional problems in plants and humans. Understanding the structure, function, and regulation of Fe transporters is essential to address Fe deficiency in plants and to improve Fe content in staple food crops. In this review, we summarized the role of Fe transporter family members in the uptake, cellular and intercellular movement, and long-distance transport of Fe in plants. We draw insights into the role of vacuolar membrane transporters in the crop for Fe biofortification. We also provide structural and functional insights into cereal crops' vacuolar iron transporters (VITs). This review will help highlight the importance of VITs for improving the Fe biofortification of crops and alleviating Fe deficiency in humans.
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Affiliation(s)
| | - Stanislaus Antony Ceasar
- Division of Plant Molecular Biology and Biotechnology, Department of Biosciences, Rajagiri College of Social Sciences, Kochi 683104, Kerala, India
| | - Theivanayagam Maharajan
- Division of Plant Molecular Biology and Biotechnology, Department of Biosciences, Rajagiri College of Social Sciences, Kochi 683104, Kerala, India
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Hatta M, Sulakhudin, Burhansyah R, Kifli GC, Dewi DO, Kilmanun JC, Permana D, Supriadi K, Warman R, Azis H, Santari PT, Widiastuti DP. Food self-sufficiency: Managing the newly-opened tidal paddy fields for rice farming in Indonesia (A case study in West Kalimantan, Indonesia). Heliyon 2023; 9:e13839. [PMID: 36873495 PMCID: PMC9981894 DOI: 10.1016/j.heliyon.2023.e13839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 01/29/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
The Indonesian government continues to develop a sustainable food self-sufficiency program by increasing national food security through an extension program. One of the instruments is by opening new rice fields. The area of new rice fields in Indonesia is 222,442 ha spreading on the islands of Sumatra, Kalimantan, and Papua. This new rice field is estimated to produce 1.2 million tons of rice per year. In the case of West Kalimantan Province, it has opened new rice fields cover an area of 23,384 ha, mostly in tidal lands. Expansion of newly-opened rice fields does not increase land productivity. Moreover, rice productivity in the newly-opened paddy fields is only an average of 2 t ha-1. The low rice productivity is caused by biophysical factors of land in agriculture, and social-economic, and institutional factors of farmers at the village level. Therefore, it is necessary to have a rice farming model in newly-opened rice fields involving farmer groups, researchers, agricultural extension agents, government agencies, the private sector, and banks. The purpose of this study was to present a sustainable rice farming model in the newly-opened tidal rice fields. The results of this study showed that application of the rice farming model in newly-opened tidal rice fields could increase rice productivity from 2 to 5.7 t ha-1 and farmer income of IDR 10.6 million, involving good collaboration among farmer groups and farmer economic organizations supported by banks for sustainability.
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Affiliation(s)
- Muhammad Hatta
- National Research and Innovation Agency, B.J. Habibie Building 15th-24th Floor, Jl. M.H. Thamrin No. 8, Jakarta Pusat 10340, Indonesia
| | - Sulakhudin
- Department of Soil Science, Faculty of Agriculture, Tanjungpura University, Jl.Prof. Hadari Nawawi, Pontianak, West Kalimantan 78121, Indonesia
| | - Rusli Burhansyah
- National Research and Innovation Agency, B.J. Habibie Building 15th-24th Floor, Jl. M.H. Thamrin No. 8, Jakarta Pusat 10340, Indonesia
| | - Gontom C Kifli
- National Research and Innovation Agency, B.J. Habibie Building 15th-24th Floor, Jl. M.H. Thamrin No. 8, Jakarta Pusat 10340, Indonesia
| | - Dina O Dewi
- National Research and Innovation Agency, B.J. Habibie Building 15th-24th Floor, Jl. M.H. Thamrin No. 8, Jakarta Pusat 10340, Indonesia
| | - Juliana C Kilmanun
- National Research and Innovation Agency, B.J. Habibie Building 15th-24th Floor, Jl. M.H. Thamrin No. 8, Jakarta Pusat 10340, Indonesia
| | - Dadan Permana
- National Research and Innovation Agency, B.J. Habibie Building 15th-24th Floor, Jl. M.H. Thamrin No. 8, Jakarta Pusat 10340, Indonesia
| | - Khojin Supriadi
- National Research and Innovation Agency, B.J. Habibie Building 15th-24th Floor, Jl. M.H. Thamrin No. 8, Jakarta Pusat 10340, Indonesia
| | - Riki Warman
- National Research and Innovation Agency, B.J. Habibie Building 15th-24th Floor, Jl. M.H. Thamrin No. 8, Jakarta Pusat 10340, Indonesia
| | - Hozin Azis
- National Research and Innovation Agency, B.J. Habibie Building 15th-24th Floor, Jl. M.H. Thamrin No. 8, Jakarta Pusat 10340, Indonesia
| | - Putri Tria Santari
- National Research and Innovation Agency, B.J. Habibie Building 15th-24th Floor, Jl. M.H. Thamrin No. 8, Jakarta Pusat 10340, Indonesia
| | - Dwi P Widiastuti
- National Research and Innovation Agency, B.J. Habibie Building 15th-24th Floor, Jl. M.H. Thamrin No. 8, Jakarta Pusat 10340, Indonesia
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Bomfim NCP, Aguilar JV, Ferreira TC, de Souza LA, Camargos LS. Could nitrogen compounds be indicators of tolerance to high doses of Cu and Fe in the cultivation of Leucaena leucocephala? PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 194:489-498. [PMID: 36512983 DOI: 10.1016/j.plaphy.2022.11.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 11/23/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Nitrogen metabolism and the production of primary and secondary metabolites vary according to biotic and abiotic factors such as trace elements (TE) stress, and can, therefore, be considered biomarkers. The present study evaluated the effect of copper (Cu) and iron (Fe) TE, separately, on the metabolism of nitrogen compounds and biomass production, partitioned into shoot and roots of Leucaena leucocephala (Lam.) de Wit., and identified possible defense mechanisms linked to nitrogen metabolism. At 120 days of cultivation, the biomass production of L. leucocephala was higher when exposed to excess Fe than Cu. Nonetheless, the biomass gain (%) of plants exposed to Cu was higher, especially the biomass gains in roots. The tolerance and biomass production of L. leucocephala is related to the regulation of nitrogen metabolism and production of secondary metabolites. The biochemistry of plant metabolism against the excess of Cu and Fe TE manifested similarly, but with some specifics regarding the chemical nature of each metal. There was a reduction in the content of ureides and proteins and an increase in amino acids in the roots in relation to the increase in Cu and Fe concentrations. There was low accumulation of proline in the roots in treatments 400 and 500 mg/dm3 compared to the control for both TE. On the other hand, the total phenolic compounds in the roots increased. Our results indicate that the increased synthesis of amino acids and the accumulation of phenolic compounds is involved in the tolerance of L. leucocephala to Cu and Fe.
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Affiliation(s)
- Nayane Cristina Pires Bomfim
- Department of Biology and Zootechny, São Paulo State University (Unesp), School of Engineering, Ilha Solteira. Plant Metabolism Physiology Laboratory. Rua Monção, 226, Rua Monção, 226, Zona Norte, Ilha Solteira, São Paulo, 15385-000, Brazil.
| | - Jailson Vieira Aguilar
- Department of Biology and Zootechny, São Paulo State University (Unesp), School of Engineering, Ilha Solteira. Plant Metabolism Physiology Laboratory. Rua Monção, 226, Rua Monção, 226, Zona Norte, Ilha Solteira, São Paulo, 15385-000, Brazil
| | - Tassia Caroline Ferreira
- Department of Biology and Zootechny, São Paulo State University (Unesp), School of Engineering, Ilha Solteira. Plant Metabolism Physiology Laboratory. Rua Monção, 226, Rua Monção, 226, Zona Norte, Ilha Solteira, São Paulo, 15385-000, Brazil
| | | | - Liliane Santos Camargos
- Department of Biology and Zootechny, São Paulo State University (Unesp), School of Engineering, Ilha Solteira. Plant Metabolism Physiology Laboratory. Rua Monção, 226, Rua Monção, 226, Zona Norte, Ilha Solteira, São Paulo, 15385-000, Brazil.
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Yang YM, Zhu Y, Naseer M, Wang Q, Li G, Tao HY, Zhu SG, Wang BZ, Wang W, Xiong YC. Rhizosphere effect of nanoscale zero-valent iron on mycorrhiza-dependent maize assimilation. PLANT, CELL & ENVIRONMENT 2023; 46:251-267. [PMID: 36319468 DOI: 10.1111/pce.14478] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 10/11/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Rhizosphere effect of nanoscale zero-valent iron (nZVI) is crucial but little reported. Maize seeds were dressed with four nZVI concentrations (0, 1.0, 1.5, 2 g kg-1 ) and inoculated with arbuscular mycorrhizal fungus (AMF) (Funneliformis mosseae). The SEM images illuminated that excessive nZVI particles (2 g kg-1 ) were agglomerated on the surface of hyphae and spore, causing severe deformation and inactivation of AMF symbionts and thereafter inhibiting water uptake in maize seedlings. This restrained the scavenging effects of enzymatic (superoxide dismutase, peroxidase) and non-enzymatic compounds (proline & malondialdehyde) on ROS, and leaf photoreduction activity and gas exchange ability (p < 0.05). Interestingly, the inoculation with AMF effectively alleviated above negative effects. In contrast, appropriate dose of nZVI, that is, ≤1.5 g kg-1 , can be evenly distributed on the hyphae surface and form the ordered symbionts with AMF. This help massively to enhance hyphae growth and water and nutrient uptake. The enhanced mycorrhizal infection turned to promote rhizosphere symbiont activity and leaf Rubisco and Rubisco activase activity. Light compensation point was massively lowered, which increased photosynthetic carbon supply for AMF symbionts. Particularly, such priming effects were evidently enhanced by drought stress. Our findings provided a novel insight into functional role of nZVI in agriculture and AMF-led green production.
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Affiliation(s)
- Yu-Miao Yang
- State Key Laboratory of Grassland Agroecosystems, College of Ecology, Lanzhou University, Lanzhou, China
| | - Ying Zhu
- Institute of Biology, Gansu Academy of Sciences, Lanzhou, China
| | - Minha Naseer
- State Key Laboratory of Grassland Agroecosystems, College of Ecology, Lanzhou University, Lanzhou, China
| | - Qi Wang
- National Center for Nanoscience and Technology, Beijing, China
| | - Guang Li
- College of forestry, Gansu Agricultural University, Lanzhou, China
| | - Hong-Yan Tao
- State Key Laboratory of Grassland Agroecosystems, College of Ecology, Lanzhou University, Lanzhou, China
| | - Shuang-Guo Zhu
- State Key Laboratory of Grassland Agroecosystems, College of Ecology, Lanzhou University, Lanzhou, China
| | - Bao-Zhong Wang
- State Key Laboratory of Grassland Agroecosystems, College of Ecology, Lanzhou University, Lanzhou, China
| | - Wei Wang
- State Key Laboratory of Grassland Agroecosystems, College of Ecology, Lanzhou University, Lanzhou, China
| | - You-Cai Xiong
- State Key Laboratory of Grassland Agroecosystems, College of Ecology, Lanzhou University, Lanzhou, China
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Theerawitaya C, Wanchana S, Ruanjaichon V, Tisaram R, Samphumphuang T, Sotesaritkul T, Cha-um S, Toojinda T. Determination of traits responding to iron toxicity stress at different stages and genome-wide association analysis for iron toxicity tolerance in rice ( Oryza sativa L.). FRONTIERS IN PLANT SCIENCE 2022; 13:994560. [PMID: 36275605 PMCID: PMC9583542 DOI: 10.3389/fpls.2022.994560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
Rice is the staple food for more than half of the world's population. Iron toxicity limits rice production in several regions of the world. Breeding Fe-tolerant rice varieties is an excellent approach to address the problem of Fe toxicity. Rice responds differently to Fe toxicity at different stages. Most QTLs associated with Fe toxicity have been identified at the seedling stage, and there are very few studies on Fe toxicity across different stages. In this study, we investigated agro-morphological and physiological traits in response to Fe toxicity in a rice diversity panel at seedling, vegetative, and reproductive stages and applied GWAS to identify QTLs/genes associated with these traits. Among agro-morphological and physiological parameters, leaf bronzing score (LBS) is a key parameter for determining Fe toxicity response at all stages, and SDW could be a promising parameter at the seedling stage. A total of 29 QTLs were identified on ten chromosomes. Among them, three colocalized QTLs were identified on chromosome 5, 6, and 11. Several QTLs identified in this study overlapped with previously identified QTLs from bi-parental QTL mapping and association mapping. Two genes previously reported to be associated with iron homeostasis were identified, i.e., LOC_Os01g72370 (OsIRO2, OsbHLH056) and LOC_Os04g38570 (OsABCB14). In addition, based on gene-based haplotype analysis, LOC_Os05g16670 was identified as a candidate gene for the colocalized QTL on chromosome 5 and LOC_Os11g18320 was identified as a candidate gene for the colocalized QTL on chromosome 11. The QTLs and candidate genes identified in this study could be useful for rice breeding programs for Fe toxicity tolerance.
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15
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Sun Z, Guo D, Lv Z, Bian C, Ma C, Liu X, Tian Y, Wang C, Zheng X. Brassinolide alleviates Fe deficiency-induced stress by regulating the Fe absorption mechanism in Malus hupehensis Rehd. PLANT CELL REPORTS 2022; 41:1863-1874. [PMID: 35781542 DOI: 10.1007/s00299-022-02897-4] [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: 04/29/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
Exogenous brassinolide promotes Fe absorption through mechanism I strategy, thus improving the tolerance of Malus hupehensis seedlings to Fe deficiency stress. Iron (Fe) deficiency is a common nutritional disorder that results in decreased yield and poor fruit quality in apple production. As a highly active synthetic analog of brassinosteroids, brassinolide (BL) plays numerous roles in plant responses to abiotic stresses. However, its role in Fe deficiency stress in apple plants has never been reported. Herein, we found that the exogenous application of 0.2 mg L-1 BL could significantly enhance the tolerance of apple seedlings to Fe deficiency stress and result in a low etiolation rate and a high photosynthetic rate. The functional mechanisms of this effect were also explored. We found that first, exogenous BL could improve Fe absorption through the mechanism I strategy. BL induced the activity of H+-ATPase and the expression of MhAHA family genes, resulting in rhizosphere acidification. Moreover, BL could enhance the activity of Fe chelate reductase and absorb Fe through direct binding with the E-box of the MhIRT1 or MhFRO2 promoter via the transcription factors MhBZR1 and MhBZR2. Second, exogenous BL alleviated osmotic stress by increasing the contents of osmolytes (proline, solution proteins, and solution sugar) and scavenged reactive oxygen species by improving the activities of antioxidant enzymes. Lastly, exogenous BL could cooperate with other endogenous plant hormones, such as indole-3-acetic acid, isopentenyl adenosine, and gibberellic acid 4, that respond to Fe deficiency stress indirectly. This work provided a theoretical basis for the application of exogenous BL to alleviate Fe deficiency stress in apple plants.
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Affiliation(s)
- Zhijuan Sun
- College of Life Science, Qingdao Agricultural University, Qingdao, 266109, China
| | - Dianming Guo
- College of Horticulture, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Zhichao Lv
- College of Horticulture, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Chuanjie Bian
- College of Horticulture, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Changqing Ma
- College of Horticulture, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Xiaoli Liu
- College of Horticulture, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Yike Tian
- College of Horticulture, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Caihong Wang
- College of Horticulture, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Xiaodong Zheng
- College of Horticulture, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, 266109, China.
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China.
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Gao D, Ran C, Zhang Y, Wang X, Lu S, Geng Y, Guo L, Shao X. Effect of different concentrations of foliar iron fertilizer on chlorophyll fluorescence characteristics of iron-deficient rice seedlings under saline sodic conditions. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 185:112-122. [PMID: 35671588 DOI: 10.1016/j.plaphy.2022.05.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/27/2022] [Accepted: 05/19/2022] [Indexed: 05/24/2023]
Abstract
The effectiveness of iron is reduced in saline conditions, which can easily lead to iron deficiency and inhibit photosynthesis in rice. In this study, 4-week-old Fe-deficient rice seedlings were treated under saline sodic stress (50 mM) to different concentrations (0, 0.2%, 0.4%, 0.8%, 1.6%, and 3.2%) of foliar iron fertilizer (FeEDDHA). Differences in prompting fluorescence and the MR820 signal of rice leaves after 7 days of treatment were probed using the JIP-test. The results show that the performances of the two rice varieties were in general agreement. Under iron deficiency and soda salinity stress conditions, rice growth was inhibited, and the pigment content, specific energy flux, quantum yield, performance of the active PSII reaction center (PIABS) and the oxidation (Vox) and reduction rates (Vred) of PSI were reduced. These indicators first increase and then decrease with increasing iron fertiliser concentrations. The best results were obtained with the Fe3 treatment (0.8%). Fluorescence parameters such as the relative variable fluorescence (WK and VJ) and the quantum yield of energy dissipation (φDo) showed opposite trends. This suggests that iron deficiency/excess and soda saline stress disrupt the electron and energy transport in the photosystem. Appropriate iron fertilization concentration can repair the photosynthetic electron transport chain, improve electron transport efficiency and promote balanced energy distribution. Therefore, we suggest that moderate amounts of Fe are beneficial for improving the electron and energy transport properties of the photosystem, while spraying high concentrations of Fe fertilizer has a negative effect on improving salt tolerance in rice.
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Affiliation(s)
- Dapeng Gao
- Agronomy College, Jilin Agricultural University, Changchun, 130118, China
| | - Cheng Ran
- Agronomy College, Jilin Agricultural University, Changchun, 130118, China
| | - Yunhe Zhang
- Agronomy College, Jilin Agricultural University, Changchun, 130118, China
| | - Xiaolei Wang
- Agronomy College, Jilin Agricultural University, Changchun, 130118, China
| | - Sifei Lu
- Agronomy College, Jilin Agricultural University, Changchun, 130118, China
| | - Yanqiu Geng
- Agronomy College, Jilin Agricultural University, Changchun, 130118, China
| | - Liying Guo
- Agronomy College, Jilin Agricultural University, Changchun, 130118, China; Key Laboratory of the Ministry of Education for Germplasm Innovation and Physiology and Ecology of Food Crops in Cold Regions, Harbin, 150038, China.
| | - Xiwen Shao
- Agronomy College, Jilin Agricultural University, Changchun, 130118, China.
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Tisarum R, Pongprayoon W, Sithtisarn S, Sampumphuang T, Sotesaritkul T, Datta A, Singh HP, Cha-Um S. Expression levels of genes involved in metal homeostasis, physiological adaptation, and growth characteristics of rice (Oryza sativa L.) genotypes under Fe and/or Al toxicity. PROTOPLASMA 2022; 259:1013-1028. [PMID: 34714403 DOI: 10.1007/s00709-021-01719-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
Acid sulphate soil contains high amounts of iron (Fe) and aluminum (Al), and their contamination has been reported as major problems, especially in rainfed and irrigated lowland paddy fields. Rice is sensitive to Fe and Al grown in acid soil (pH < 5.5), leading to growth inhibition and grain yield loss. The objective of this study was to evaluate Fe and/or Al uptake, translocation, physiological adaptation, metal toxicity, and growth inhibition in rice genotypes grown in acid soil. Fe and Al in the root tissues of all rice genotypes were enriched depending on the exogenous application of either Fe or Al in the soil solution, leading to root growth inhibition, especially in the KDML105 genotype. Expression level of OsYSL1 in KDML105 was increased in relation to metal uptake into root tissues, whereas OsVIT2 was downregulated, leading to Fe (50.3 mg g-1 DW or 13.1 folds over the control) and Al (4.8 mg g-1 DW or 2.2 folds over the control) translocation to leaf tissues. Consequently, leaf greenness (SPAD), net photosynthetic rate (Pn), stomatal conductance (gs), and transpiration rate (E) in the leaf tissues of genotype KDML105 under Fe + Al toxicity significantly declined by 28.4%, 35.3%, 55.6%, and 51.6% over the control, respectively. In Azucena (AZU; Fe/Al tolerant), there was a rapid uptake of Fe and Al by OsYSL1 expression in the root tissues, but a limited secretion into vacuole organelles by OsVIT2, leading to a maintenance of low level of toxicity driven by an enhanced accumulation of glutathione together with downregulation of OsGR expression level. In addition, Fe and Al restrictions in the root tissues of genotype RD35 were evident; therefore, crop stress index (CSI) of Fe + Al-treated plants was the maximum, leading to an inhibition of gs (53.6% over the control) and E (49.0% over the control). Consequently, free proline, total phenolic compounds, and ascorbic acid in the leaf tissues of rice under Fe + Al toxicity significantly increased by 3.2, 1.2, and 1.5 folds over the control, respectively, indicating their functions in non-enzymatic antioxidant defense. Moreover, physiological parameters including leaf temperature (Tleaf) increment, high level of CSI (>0.6), SPAD reduction, photon yield of PSII (ΦPSII) diminution, Pn, gs, and E inhibition in rice genotype IR64 (Fe/Al-sensitive) under Fe + Al treatment were clearly demonstrated as good indicators of metal-induced toxicity. Our results on Fe- and/or Al-tolerant screening to find out the candidate genotypes will contribute to present screening and breeding efforts, which in turn help increase rice production in the Fe/Al-contaminated acid soil under lowland conditions.
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Affiliation(s)
- Rujira Tisarum
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Wasinee Pongprayoon
- Department of Biology, Faculty of Science, Burapha University, Saen Suk, Chon Buri, 20131, Thailand
| | - Sayamon Sithtisarn
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Thapanee Sampumphuang
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Thanyaporn Sotesaritkul
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Avishek Datta
- Agricultural Systems and Engineering, Department of Food, Agriculture and Bioresources, School of Environment, Resources and Development, Asian Institute of Technology, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Harminder Pal Singh
- Department of Environment Studies, Faculty of Science, Panjab University, Chandigarh, 160014, India
| | - Suriyan Cha-Um
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand.
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Singh D, Thapa S, Mahawar H, Kumar D, Geat N, Singh SK. Prospecting potential of endophytes for modulation of biosynthesis of therapeutic bioactive secondary metabolites and plant growth promotion of medicinal and aromatic plants. Antonie van Leeuwenhoek 2022; 115:699-730. [PMID: 35460457 DOI: 10.1007/s10482-022-01736-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 03/26/2022] [Indexed: 01/13/2023]
Abstract
Medicinal and aromatic plants possess pharmacological properties (antidiabetes, anticancer, antihypertension, anticardiovascular, antileprosy, etc.) because of their potential to synthesize a wide range of therapeutic bioactive secondary metabolites. The concentration of bioactive secondry metabolites depends on plant species, local environment, soil type and internal microbiome. The internal microbiome of medicinal plants plays the crucial role in the production of bioactive secondary metabolites, namely alkaloids, steroids, terpenoids, peptides, polyketones, flavonoids, quinols and phenols. In this review, the host specific secondry metabolites produced by endophytes, their therapeutic properties and host-endophytes interaction in relation to production of bioactive secondry metaboloites and the role of endophytes in enhancing the production of bioactive secondry metabolites is discussed. How biological nitrogen fixation, phosphorus solubilization, micronutrient uptake, phytohormone production, disease suppression, etc. can play a vital role in enhacing the plant growth and development.The role of endophytes in enhancing the plant growth and content of bioactive secondary metabolites in medicinal and aromatic plants in a sustainable mode is highlighted.
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Affiliation(s)
- Devendra Singh
- ICAR-Central Arid Zone Research Institute, Jodhpur, Rajasthan, 342003, India.
| | - Shobit Thapa
- ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Mau Nath Bhanjan, Uttar Pradesh, 275103, India
| | - Himanshu Mahawar
- ICAR-Directorate of Weed Research (DWR), Maharajpur, Jabalpur, Madhya Pradesh, 482004, India
| | - Dharmendra Kumar
- ICAR- Central Potato Research Institute, Shimla, Himachal Pradesh, 171001, India
| | - Neelam Geat
- Agricultural Research Station, Agriculture University, Jodhpur, Rajasthan, 342304, India
| | - S K Singh
- ICAR-Central Arid Zone Research Institute, Jodhpur, Rajasthan, 342003, India
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Noor R, Yasmin H, Ilyas N, Nosheen A, Hassan MN, Mumtaz S, Khan N, Ahmad A, Ahmad P. Comparative analysis of iron oxide nanoparticles synthesized from ginger (Zingiber officinale) and cumin seeds (Cuminum cyminum) to induce resistance in wheat against drought stress. CHEMOSPHERE 2022; 292:133201. [PMID: 34921860 DOI: 10.1016/j.chemosphere.2021.133201] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 11/22/2021] [Accepted: 12/05/2021] [Indexed: 06/14/2023]
Abstract
In the present study, iron oxide nanoparticles (Fe3O2-NPs) synthesized from ginger (Zingiber officinale) and cumin seeds (Cuminum Cyminum L.) extracts were investigated to reveal their potential to enhance the growth and drought resistance of wheat plants under drought stress. In an In Vitro experiment, four different concentrations for Fe3O2-NPs (0.3 mM, 0.6 mM, 0.9 mM, and 1.2 mM) of ginger and cumin seeds were tested. Among all the concentrations tested, ginger Fe3O2-NPs (0.6 mM) and cumin seeds Fe3O2-NPs (1.2 mM) were more effective to enhance wheat germination, biomass, and survival percentage under drought stress and irrigated conditions than the non-treated control plant. In a pot experiment, wheat plants under induced water stress showed marked up-regulation in the biochemical resistance mechanisms when treated with ginger Fe3O2-NPs (0.6 mM) and cumin seeds Fe3O2-NPs (1.2 mM) than the non-treated control. Cumin seeds Fe3O2-NPs (1.2 mM) were more effective than ginger Fe3O2-NPs (0.6 mM) in ameliorating adverse effects of drought stress in wheat. Results demonstrated that cumin seeds Fe3O2-NPs (1.2 mM) exhibited a higher increase in chlorophyll a, b and carotenoids (72%, 265% and 96% respectively), proline (127%), superoxide dismutase (115%), peroxidase (43.8%), ascorbate peroxidase (44.6%). This also showed higher reduction in lipid peroxidation, electrolyte leakage and increased soluble sugars and total Fe content in the roots and shoots than non-treated plants under drought. Hence, nano-priming can be considered an effective strategy for sustainable food production in marginal soils.
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Affiliation(s)
- Rabeea Noor
- Department of Biosciences, COMSATS University Islamabad (CUI), 45550, Islamabad, Pakistan
| | - Humaira Yasmin
- Department of Biosciences, COMSATS University Islamabad (CUI), 45550, Islamabad, Pakistan.
| | - Noshin Ilyas
- Department of Botany, PMAS-Arid University Rawalpindi, 46300, Rawalpindi, Pakistan
| | - Asia Nosheen
- Department of Biosciences, COMSATS University Islamabad (CUI), 45550, Islamabad, Pakistan
| | - Muhammad Nadeem Hassan
- Department of Biosciences, COMSATS University Islamabad (CUI), 45550, Islamabad, Pakistan
| | - Saqib Mumtaz
- Department of Biosciences, COMSATS University Islamabad (CUI), 45550, Islamabad, Pakistan
| | - Naeem Khan
- Department of Agronomy, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL, 32611, USA
| | - Ajaz Ahmad
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Parvaiz Ahmad
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
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20
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Khan ZI, Muhammad FG, Ahmad K, Akhtar S, Sohail M, Nadeem M, Mahpara S, Awan MUF, Alwahibi MS, Elshikh MS, Hussain MI. Effects of diverse irrigation with wastewater in soil and plants: assessing the risk of metal to the animal food chain. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:27140-27149. [PMID: 34978030 DOI: 10.1007/s11356-021-17559-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 11/12/2021] [Indexed: 06/14/2023]
Abstract
In District Jhang, farmers use municipal wastewater to irrigate fodder crops as an alternative source to the deficient availability of fresh water. Therefore, the present study selected the three irrigation sources in District Jhang (canal water, ground water and municipal wastewater) to study the iron (Fe) concentration in the soil, fodder crops and ultimately their transfer into the animal body. Analysed Fe concentration varied as 16.40-27.53 mg/kg in soil samples, 19.72-30.34 mg/kg in fodder crops and 2.49-5.11 mg/kg in animals. Analysed Fe concentration in soil was higher on the wastewater irrigation site while canal water-irrigated fodder crop Zea mays exhibit the higher Fe concentration. In animal samples, higher Fe concentration was observed in the cow blood (4.09 mg/l), cow hairs (3.39 mg/kg) and cow faeces (5.11 mg/kg). Results of pollution load index (0.288-0.484 mg/kg) and enrichment factor (0.112-0.197 mg/kg) indicated that Fe concentration was minimally dispersed and enriched in these sites. Health risk and daily intake values were observed between the 0.029-0.059 and 0.042-0.084 mg/kg/day. Bio-concentration factor (0.834-1.47 mg/kg) for Fe which was greater than 1 explains that Fe contamination was transferred from the soil to fodder tissues and may raise health issues in the grazing animals if they are continuously exposed to these contaminated forages. Wastewater irrigation in study area has increased the Fe content in soil-plant environment that is a risking factor for animal and human health. Hence, this study recommended that wastewater should be treated prior to their irrigation on agricultural lands.
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Affiliation(s)
- Zafar Iqbal Khan
- Department of Botany, University of Sargodha, Sargodha, Pakistan.
| | | | - Kafeel Ahmad
- Department of Botany, University of Sargodha, Sargodha, Pakistan
| | - Shahzad Akhtar
- Department of Botany, University of Sargodha, Sargodha, Pakistan
| | - Muhammad Sohail
- Department of Botany, University of Sargodha, Sargodha, Pakistan
| | - Muhammad Nadeem
- Institute of Food Science and Nutrition, University of Sargodha, Sargodha, Pakistan
| | - Shahzadi Mahpara
- Department of Plant Breeding and Genetics, Ghazi University, Dera Ghazi Khan, Pakistan
| | | | - Mona S Alwahibi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Muhammad Iftikhar Hussain
- Department of Plant Biology and Soil Science, Universidad de Vigo, Campus Lagoas Marcosende, 36310, Vigo, Spain
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21
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Ge X, Khan ZI, Chen F, Akhtar M, Ahmad K, Ejaz A, Ashraf MA, Nadeem M, Akhtar S, Alkahtani J, Dwiningsih Y, Elshikh MS. A study on the contamination assessment, health risk and mobility of two heavy metals in the soil-plants-ruminants system of a typical agricultural region in the semi arid environment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:14584-14594. [PMID: 34617216 DOI: 10.1007/s11356-021-16756-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
This study's aim was to investigate iron (Fe) and zinc (Zn) concentration in the soil, forage crops, and sheep blood with respect to the seasonal availability of these metals. Soil, forage, and sheep blood samples were sampled from five different locations in Chakwal (Pidh, Tobar, Ratoccha, Choa Saiden Shah-Kalar Kahar road, and Choa Saiden Shan-Chakwal Road) during two seasons, i.e., winter and summer. All the samples were processed through wet acid digestion for evaluation of metal contents. Because of proximity of site-1 and site-2 to coal mines, higher Fe concentration was observed than Zn. Overall, varied Fe concentrations obtained in soil were 12.95-24.31 mg/kg, 1.29-9.61 mg/kg in forage and 1.17-24 mg/l in blood, whereas Zn values were 1.04-31.9 mg/kg, 1.96-7.02 mg/kg, and 0.16-6.52 mg/l for soil, forages, and blood respectively. The pollution load index value for both Fe (0.01-0.14 mg/kg) and Zn (0.02-0.72 mg/kg) was lesser than 1. Bio-concentration (0.09-2.64mg/kg) and enrichment factor (0.08-7.51 mg/kg) were showing efficient transfer of metals through the food chain. Daily intake and health risk index values of iron were ranged from 0.01 to 1.1 mg/kg/day and 0.02 to 1.05 mg/kg/day. There was a probable chance of upsurge in metal values in coming years due to continued mining activities. Anthropogenic input, mainly mining activities in the study area, have increased the Fe and Zn content in the environment which can ultimately find their way up the food chain, thereby risking the health of grazing livestock.
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Affiliation(s)
- Xiaoping Ge
- College of Hydrology and Water Resources, Hohai University, Nanjing, China
| | - Zafar Iqbal Khan
- Department of Botany, University of Sargodha, Sargodha, Pakistan.
| | - Fu Chen
- Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou, China
| | - Mubeen Akhtar
- Department of Botany, University of Sargodha, Sargodha, Pakistan
| | - Kafeel Ahmad
- Department of Botany, University of Sargodha, Sargodha, Pakistan
| | - Abid Ejaz
- Department of Botany, University of Sargodha, Sargodha, Pakistan
| | - Muhammad Arslan Ashraf
- Department of Biological Sciences, University of Sargodha, Sub-campus, Bhakkar, Pakistan
| | - Muhammad Nadeem
- Institute of Food Science and Nutrition, University of Sargodha, Sargodha, Pakistan
| | - Shahzad Akhtar
- Department of Botany, University of Sargodha, Sargodha, Pakistan
| | - Jawaher Alkahtani
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Yheni Dwiningsih
- Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR, USA
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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22
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Ensemble Averaging of Transfer Learning Models for Identification of Nutritional Deficiency in Rice Plant. ELECTRONICS 2022. [DOI: 10.3390/electronics11010148] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Computer vision-based automation has become popular in detecting and monitoring plants’ nutrient deficiencies in recent times. The predictive model developed by various researchers were so designed that it can be used in an embedded system, keeping in mind the availability of computational resources. Nevertheless, the enormous popularity of smart phone technology has opened the door of opportunity to common farmers to have access to high computing resources. To facilitate smart phone users, this study proposes a framework of hosting high end systems in the cloud where processing can be done, and farmers can interact with the cloud-based system. With the availability of high computational power, many studies have been focused on applying convolutional Neural Networks-based Deep Learning (CNN-based DL) architectures, including Transfer learning (TL) models on agricultural research. Ensembling of various TL architectures has the potential to improve the performance of predictive models by a great extent. In this work, six TL architectures viz. InceptionV3, ResNet152V2, Xception, DenseNet201, InceptionResNetV2, and VGG19 are considered, and their various ensemble models are used to carry out the task of deficiency diagnosis in rice plants. Two publicly available datasets from Mendeley and Kaggle are used in this study. The ensemble-based architecture enhanced the highest classification accuracy to 100% from 99.17% in the Mendeley dataset, while for the Kaggle dataset; it was enhanced to 92% from 90%.
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23
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Kar S, Mai HJ, Khalouf H, Ben Abdallah H, Flachbart S, Fink-Straube C, Bräutigam A, Xiong G, Shang L, Panda SK, Bauer P. Comparative Transcriptomics of Lowland Rice Varieties Uncovers Novel Candidate Genes for Adaptive Iron Excess Tolerance. PLANT & CELL PHYSIOLOGY 2021; 62:624-640. [PMID: 33561287 PMCID: PMC8462385 DOI: 10.1093/pcp/pcab018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 01/29/2021] [Indexed: 05/19/2023]
Abstract
Iron (Fe) toxicity is a major challenge for plant cultivation in acidic waterlogged soil environments, where lowland rice is a major staple food crop. Only few studies have addressed the molecular characterization of excess Fe tolerance in rice, and these highlight different mechanisms for Fe tolerance. Out of 16 lowland rice varieties, we identified a pair of contrasting lines, Fe-tolerant Lachit and -susceptible Hacha. The two lines differed in their physiological and morphological responses to excess Fe, including leaf growth, leaf rolling, reactive oxygen species generation and Fe and metal contents. These responses were likely due to genetic origin as they were mirrored by differential gene expression patterns, obtained through RNA sequencing, and corresponding gene ontology term enrichment in tolerant vs. susceptible lines. Thirty-five genes of the metal homeostasis category, mainly root expressed, showed differential transcriptomic profiles suggestive of an induced tolerance mechanism. Twenty-two out of these 35 metal homeostasis genes were present in selection sweep genomic regions, in breeding signatures, and/or differentiated during rice domestication. These findings suggest that Fe excess tolerance is an important trait in the domestication of lowland rice, and the identified genes may further serve to design the targeted Fe tolerance breeding of rice crops.
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Affiliation(s)
- Saradia Kar
- Institute of Botany, Heinrich Heine University, Universitätsstr. 1, Düsseldorf 40225, Germany
- Plant Molecular Biotechnology Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, India
| | - Hans-Jörg Mai
- Institute of Botany, Heinrich Heine University, Universitätsstr. 1, Düsseldorf 40225, Germany
| | - Hadeel Khalouf
- Institute of Botany, Heinrich Heine University, Universitätsstr. 1, Düsseldorf 40225, Germany
| | - Heithem Ben Abdallah
- Institute of Botany, Heinrich Heine University, Universitätsstr. 1, Düsseldorf 40225, Germany
| | - Samantha Flachbart
- Institute of Plant Biochemistry, Heinrich Heine University, Universitätsstr. 1, Düsseldorf 40225, Germany
| | | | - Andrea Bräutigam
- Faculty of Biology, Bielefeld University, Universitätsstr. 27, Bielefeld 33615, Germany
| | - Guosheng Xiong
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Lianguang Shang
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Sanjib Kumar Panda
- Plant Molecular Biotechnology Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, India
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Ajmer, Rajasthan 305817, India
| | - Petra Bauer
- Institute of Botany, Heinrich Heine University, Universitätsstr. 1, Düsseldorf 40225, Germany
- Cluster of Excellence on Plant Science (CEPLAS), Heinrich Heine University, Düsseldorf, Germany
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24
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Housh AB, Powell G, Scott S, Anstaett A, Gerheart A, Benoit M, Waller S, Powell A, Guthrie JM, Higgins B, Wilder SL, Schueller MJ, Ferrieri RA. Functional mutants of Azospirillum brasilense elicit beneficial physiological and metabolic responses in Zea mays contributing to increased host iron assimilation. THE ISME JOURNAL 2021; 15:1505-1522. [PMID: 33408368 PMCID: PMC8115672 DOI: 10.1038/s41396-020-00866-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 10/28/2020] [Accepted: 12/03/2020] [Indexed: 01/29/2023]
Abstract
Iron (Fe), an essential element for plant growth, is abundant in soil but with low bioavailability. Thus, plants developed specialized mechanisms to sequester the element. Beneficial microbes have recently become a favored method to promote plant growth through increased uptake of essential micronutrients, like Fe, yet little is known of their mechanisms of action. Functional mutants of the epiphytic bacterium Azospirillum brasilense, a prolific grass-root colonizer, were used to examine mechanisms for promoting iron uptake in Zea mays. Mutants included HM053, FP10, and ipdC, which have varying capacities for biological nitrogen fixation and production of the plant hormone auxin. Using radioactive iron-59 tracing and inductively coupled plasma mass spectrometry, we documented significant differences in host uptake of Fe2+/3+ correlating with mutant biological function. Radioactive carbon-11, administered to plants as 11CO2, provided insights into shifts in host usage of 'new' carbon resources in the presence of these beneficial microbes. Of the mutants examined, HM053 exhibited the greatest influence on host Fe uptake with increased plant allocation of 11C-resources to roots where they were transformed and exuded as 11C-acidic substrates to aid in Fe-chelation, and increased C-11 partitioning into citric acid, nicotianamine and histidine to aid in the in situ translocation of Fe once assimilated.
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Affiliation(s)
- A B Housh
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA
- Chemistry Department, University of Missouri, Columbia, MO, 65211, USA
| | - G Powell
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - S Scott
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - A Anstaett
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA
- Department of Chemical Engineering, University of Missouri, Columbia, MO, 65211, USA
- Burns & McDonnell, Inc. 425 S, Woods Mill Rd., Chesterfield, MO, USA, 63017
| | - A Gerheart
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA
- Chemistry Department, University of Missouri, Columbia, MO, 65211, USA
- Idaho State Police 5255 S. 5th Ave, Pocatello, ID, 83204, USA
| | - M Benoit
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA
- Division of Plant Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - S Waller
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA
- School of Natural Resources, University of Missouri, Columbia, MO, 65211, USA
| | - A Powell
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA
- School of Natural Resources, University of Missouri, Columbia, MO, 65211, USA
| | - J M Guthrie
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA
| | - B Higgins
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA
| | - S L Wilder
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA
| | - M J Schueller
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA
- Chemistry Department, University of Missouri, Columbia, MO, 65211, USA
| | - R A Ferrieri
- Missouri Research Reactor Center, University of Missouri, Columbia, MO, 65211, USA.
- Chemistry Department, University of Missouri, Columbia, MO, 65211, USA.
- Division of Plant Sciences, University of Missouri, Columbia, MO, 65211, USA.
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, 65211, USA.
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25
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Improved Anther Culture Media for Enhanced Callus Formation and Plant Regeneration in Rice ( Oryza sativa L.). PLANTS 2021; 10:plants10050839. [PMID: 33921954 PMCID: PMC8143452 DOI: 10.3390/plants10050839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/09/2021] [Accepted: 04/16/2021] [Indexed: 11/17/2022]
Abstract
Anther culture technique is the most viable and efficient method of producing homozygous doubled haploid plants within a short period. However, the practical application of this technology in rice improvement is still limited by various factors that influence culture efficiency. The present study was conducted to determine the effects of two improved anther culture media, Ali-1 (A1) and Ali-2 (A2), a modified N6 medium, to enhance the callus formation and plant regeneration of japonica, indica, and hybrids of indica and japonica cross. The current study demonstrated that genotype and media had a significant impact (p < 0.001) on both callus induction frequency and green plantlet regeneration efficiency. The use of the A1 and A2 medium significantly enhanced callus induction frequency of japonica rice type, Nipponbare, and the hybrids of indica × japonica cross (CXY6, CXY24, and Y2) but not the indica rice type, NSIC Rc480. However, the A1 medium is found superior to the N6 medium as it significantly improved the green plantlet regeneration efficiency of CXY6, CXY24, and Y2 by almost 36%, 118%, and 277%, respectively. Furthermore, it substantially reduced the albino plantlet regeneration of the induced callus in two hybrids (CXY6 and Y2). Therefore, the improved anther culture medium A1 can produce doubled haploid rice plants for indica × japonica, which can be useful in different breeding programs that will enable the speedy development of rice varieties for resource-poor farmers.
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26
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Soni P, Shivhare R, Kaur A, Bansal S, Sonah H, Deshmukh R, Giri J, Lata C, Ram H. Reference gene identification for gene expression analysis in rice under different metal stress. J Biotechnol 2021; 332:83-93. [PMID: 33794279 DOI: 10.1016/j.jbiotec.2021.03.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 01/27/2021] [Accepted: 03/25/2021] [Indexed: 10/21/2022]
Abstract
Real-time quantitative polymerase chain reaction (RT-qPCR) is the most common approach to quantify changes in gene expression. Appropriate internal reference genes are essential for normalization of data of RT-qPCR. In the present study, we identified suitable reference genes for analysis of gene expression in rice seedlings subjected to different heavy metal stresses such as deficiencies of iron and zinc and toxicities of cobalt, cadmium and nickel. First, from publically available RNA-Seq data we identified 10 candidate genes having stable expression. We also included commonly used house-keeping gene OsUBQ5 (Ubiquitin 5) in our analysis. Expression stability of all the 11 genes was determined by two independent tools, NormFinder and geNorm. Our results show that selected candidate reference genes have higher stability in their expression compared to that of OsUBQ5. Genes with locus ID LOC_Os03g16690, encoding an oxysterol-binding protein (OsOBP) and LOC_Os01g56580, encoding Casein Kinase_1a.3 (OsCK1a.3) were identified to be the most stably expressed reference genes under most of the conditions tested. Finally, the study reveals that it is better to use a specific reference gene for a specific heavy metal stress condition rather than using a common reference gene for multiple heavy metal stress conditions. The reference genes identified here would be very useful for gene expression studies under heavy metal stresses in rice.
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Affiliation(s)
- Praveen Soni
- Department of Botany, University of Rajasthan, Jaipur, 302004, India
| | - Radha Shivhare
- CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Amandeep Kaur
- National Agri-Food Biotechnology Institute, Mohali, 140308, India
| | - Sakshi Bansal
- National Agri-Food Biotechnology Institute, Mohali, 140308, India
| | - Humira Sonah
- National Agri-Food Biotechnology Institute, Mohali, 140308, India
| | - Rupesh Deshmukh
- National Agri-Food Biotechnology Institute, Mohali, 140308, India
| | - Jitender Giri
- National Institute of Plant Genome Research, New Delhi, 110067, India
| | - Charu Lata
- CSIR-National Institute of Science Communication and Information Resources, New Delhi, 110067, India.
| | - Hasthi Ram
- National Agri-Food Biotechnology Institute, Mohali, 140308, India; National Institute of Plant Genome Research, New Delhi, 110067, India.
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27
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Li B, Sun C, Lin X, Busch W. The Emerging Role of GSNOR in Oxidative Stress Regulation. TRENDS IN PLANT SCIENCE 2021; 26:156-168. [PMID: 33004257 DOI: 10.1016/j.tplants.2020.09.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 09/01/2020] [Accepted: 09/03/2020] [Indexed: 05/19/2023]
Abstract
Oxidative stress is a common event in aerobic organisms and a fundamental and unavoidable cost of the aerobic lifestyle. Reactive oxygen and nitrogen species (ROS/RNS) and iron (Fe) are the most common agents that trigger oxidative stress. A conserved enzyme in the S-nitrosoglutathione (GSNO) metabolism, GSNO reductase (GSNOR), modulates a multitude of abiotic and biotic stress responses. In this review, we focus on the emerging role of GSNOR as a master regulator in oxidative stress through its regulation of the interaction of ROS, RNS, and Fe, and highlight recent discoveries in post-translational modifications of GSNOR and functional variations of natural GSNOR variants during oxidative stress. Recent advances in understanding GSNOR regulation show promise for the modulation of oxidative stress in plants.
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Affiliation(s)
- Baohai Li
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China.
| | - Chengliang Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China
| | - Xianyong Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China.
| | - Wolfgang Busch
- Plant Biology Laboratory and Integrative Biology Laboratory, Salk Institute for Biological Studies, 10010 N Torrey Pines Road, La Jolla, CA 92037, USA
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28
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Li M, Zhang P, Adeel M, Guo Z, Chetwynd AJ, Ma C, Bai T, Hao Y, Rui Y. Physiological impacts of zero valent iron, Fe 3O 4 and Fe 2O 3 nanoparticles in rice plants and their potential as Fe fertilizers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 269:116134. [PMID: 33290949 DOI: 10.1016/j.envpol.2020.116134] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 10/22/2020] [Accepted: 11/16/2020] [Indexed: 05/12/2023]
Abstract
Fe-based nanoparticles (Fe-based NPs) have great potential as a substitute for traditional Fe-fertilizer; however, their environmental risk and impact on plant growth are not fully understood. In this study, we compared the physiological impacts of three different Fe-based NP formulations: zero-valent iron (ZVI), Fe3O4 and Fe2O3 NPs, on hydroponic rice after root exposure for 2 weeks. Fe-normal (Fe(+)) and Fe-deficiency (Fe(-)) conditions were compared. Results showed that low dose (50 mg L-1) of ZVI and Fe3O4 NPs improved the rice growth under Fe(-) condition, while Fe2O3 NPs did not improve plant growth and caused phytotoxicity at high concentration (500 mg L-1). Under Fe(+) conditions, none of the Fe-based NPs exhibited positive effects on the rice plants with plant growth actually being inhibited at 500 mg L-1 evidenced by reduced root volume and leaf biomass and enhanced oxidative stress in plant. Under Fe(-) condition, low dose (50 mg L-1) of ZVI NPs and Fe3O4 NPs increased the chlorophyll content by 30.7% and 26.9%, respectively. They also alleviated plant stress demonstrated by the reduced oxidative stress and decreased concentrations of stress related phytohormones such as gibberellin and indole-3-acetic acid. Low dose of ZVI and Fe3O4 NPs treatments resulted in higher Fe accumulation in plants compared to Fe2O3 NPs treatment, by down-regulating the expression of IRT1 and YSL15. This study provides significant insights into the physiological impacts of Fe-based NPs in rice plants and their potential application in agriculture. ZVI and Fe3O4 NPs can be used as Fe-fertilizers to improve rice growth under Fe-deficient condition, which exist in many rice-growing regions of the world. However, dose should be carefully chosen as high dose (500 mg L-1 in this study) of the Fe-based NPs can impair rice growth.
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Affiliation(s)
- Mingshu Li
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100093, China
| | - Peng Zhang
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Muhammad Adeel
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100093, China
| | - Zhiling Guo
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Andrew J Chetwynd
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Chuanxin Ma
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT 06504, United States
| | - Tonghao Bai
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100093, China; Yantai Institute, China Agricultural University (Yantai), Shandong 264670, China
| | - Yi Hao
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100093, China
| | - Yukui Rui
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100093, China.
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Xu Y, Feng J, Li H. Water management increased rhizosphere redox potential and decreased Cd uptake in a low-Cd rice cultivar but decreased redox potential and increased Cd uptake in a high-Cd rice cultivar under intercropping. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 751:141701. [PMID: 32889460 DOI: 10.1016/j.scitotenv.2020.141701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 08/13/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
Excessive Cd in crop grains is toxic to humans. We conducted a field experiment to investigate the effects of intercropping on rice yield and grain Cd content as well as a pot experiment to compare the rhizosphere redox potentials of low-Cd 'Zhuliangyou 189' and the neighboring high-Cd 'Changxianggu' that mediated Cd uptake in a flooded or a ridge-furrow system. In the field experiment, Cd removal from contaminated soil in intercropping was 1.44 times higher than that in monoculture of Zhuliangyou 189. In both Zhuliangyou 189 and Changxianggu, intercropping improved the grain yield and decreased grain Cd content. In the pot experiment, Fe plaque amount was strongly and positively correlated with bulk soil Fe(II) content, root H2O2 concentration, and Fe(II)-oxidizing ability of root bacteria but negatively correlated with Fe(II)-oxidizing ability of bulk soil bacteria and root Cd content. In Zhuliangyou 189, intercropping increased root H2O2 concentration, rhizosphere redox potential, iron plaque amount but decreased Cd bioavailability, Fe(II)-oxidizing ability of bulk soil bacteria, and organ Cd content. In the flooded system, Zhuliangyou 189 showed higher bulk soil Fe(II) content than Changxianggu. In the ridge-furrow system, ridges decreased the Fe(II)-oxidizing ability of root and bulk soil bacteria, thereby decreasing Fe plaque amount and increasing organ Cd content of rice. In both monoculture and intercropping systems, rice cultivars planted on ridges showed higher Cd bioavailability and lower bulk boil Fe(II) content than those planted in furrows.
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Affiliation(s)
- Yanggui Xu
- College of Natural Resources and Environment, South China Agricultural University, China Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, PR China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China; School of Plant Biology, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | - Jiayi Feng
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Huashou Li
- College of Natural Resources and Environment, South China Agricultural University, China Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, PR China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China.
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Bhutia KL, Nongbri EL, Sharma TO, Rai M, Tyagi W. A 1.84-Mb region on rice chromosome 2 carrying SPL4, SPL5 and MLO8 genes is associated with higher yield under phosphorus-deficient acidic soil. J Appl Genet 2021; 62:207-222. [PMID: 33409935 DOI: 10.1007/s13353-020-00601-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 11/20/2020] [Accepted: 11/26/2020] [Indexed: 11/29/2022]
Abstract
Phosphorus (P) deficiency is one of the major limiting factors for rice productivity with only one locus (PSTOL1) available for field based application. A biparental mapping population (F6) derived from two P deficiency tolerant genotypes (Sahbhagi Dhan (SD) (PSTOL1+) and Chakhao Poreiton (CP) (PSTOL1-)), in which, transcriptome data generated from our lab had previously shown existence of diverse mechanisms was used to identify novel regions for better yield under lowland acidic soils. Phenotyping at F4, F5 and F6 generations revealed significant correlation between traits like tiller number at 30 days (TN 30), tiller number at 60 days (TN 60), filled grains (FG), percent spikelet fertility (SF%), panicle number (PN) and grain yield per panicle (GYPP) and also association with better yield/performance under low P acidic soil conditions. Through selected genotyping on a set of forty superior and inferior lines using SSR, candidate gene-based and SNP polymorphic markers, 5 genomic regions associated with various yield-related traits were identified. Marker trait association studies revealed 13 markers significantly associated with yield attributing traits and PUE under lowland acidic field conditions. Chi-square and regression analyses of markers run on the entire population identified seven and six markers for SF% and GYPP, respectively, and two for biological yield with positive allele derived from SD which constitute a novel 1.847-Mb region on chromosome 2 flanked by two markers RM12550 and PR9-2. Expression analysis of 7 candidate genes lying within this region across SD, CP and two low P susceptible rice genotypes has revealed that expression of four genes including SPL4, SPL5, ACA9 and MLO8 is significantly upregulated only in SD under low P conditions. In CP, there is low expression of MLO8 under low P conditions, whereas SPL4, SPL5 and Os02g08120 are downregulated. In the case of the two susceptible genotypes, there is no expression of Os02g08120 either in optimum or limiting conditions. Sequence data across a panel of 3024 rice genotypes also suggests that there is polymorphism for these differentially expressed genes. The genes and underlying markers identified on chromosome 2 will be key to imparting tolerance to low P in diverse genetic backgrounds and for marker-assisted selection for higher yield under lowland acidic conditions.
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Affiliation(s)
- Karma Landup Bhutia
- School of Crop Improvement, College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University (Imphal), Umiam, Meghalaya, India.,CBS&H, Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, India
| | - Ernieca Lyngdoh Nongbri
- School of Crop Improvement, College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University (Imphal), Umiam, Meghalaya, India
| | - Takhenchangbam Oshin Sharma
- School of Crop Improvement, College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University (Imphal), Umiam, Meghalaya, India
| | - Mayank Rai
- School of Crop Improvement, College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University (Imphal), Umiam, Meghalaya, India
| | - Wricha Tyagi
- School of Crop Improvement, College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University (Imphal), Umiam, Meghalaya, India.
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Zheng T, Wang M, Zhan J, Sun W, Yang Q, Lin Z, Bu T, Tang Z, Li C, Yan J, Shan Z, Chen H. Ferrous iron-induced increases in capitate glandular trichome density and upregulation of CbHO-1 contributes to increases in blinin content in Conyza blinii. PLANTA 2020; 252:81. [PMID: 33037484 DOI: 10.1007/s00425-020-03492-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 10/04/2020] [Indexed: 06/11/2023]
Abstract
Ferrous iron can promote the development of glandular trichomes and increase the content of blinin, which depends on CbHO-1 expression. Conyza blinii (C. blinii) is a unique Chinese herbal medicine that grows in Sichuan Province, China. Because the habitat of C. blinii is an iron ore mining area with abundant iron content, this species can be used as one of the best materials to study the mechanism of plant tolerance to iron. In this study, C. blinii was treated with ferrous-EDTA solutions at different concentrations, and it was found that the tolerance value of C. blinii to iron was 200 μM. Under this concentration, the plant height, root length, biomass, and iron content of C. blinii increased to the maximum values, and the effect was dependent on the upregulated expression of CbHO-1. At the same time, under ferrous iron, the photosynthetic capacity and capitate glandular trichome density of C. blinii also significantly increased, providing precursors and sites for the synthesis of blinin, thus significantly increasing the content of blinin. These processes were also dependent on the high expression of CbHO-1. Correlation analysis showed that there were strong positive correlations between iron content, capitate glandular trichome density, CbHO-1 gene expression, and blinin content. This study explored the effects of ferrous iron on the physiology and biochemistry of C. blinii, greatly improving our understanding of the mechanism of iron tolerance in C. blinii.
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Affiliation(s)
- Tianrun Zheng
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Maojia Wang
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Junyi Zhan
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Wenjun Sun
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Qin Yang
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Zhiyi Lin
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Tongliang Bu
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Zizhong Tang
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Chenglei Li
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Jun Yan
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture Rural Affairs, School of Food and Bioengineering, Chengdu University, Chengdu, China
| | - Zhi Shan
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Hui Chen
- College of Life Science, Sichuan Agricultural University, Ya'an, China.
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32
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Aung MS, Masuda H. How Does Rice Defend Against Excess Iron?: Physiological and Molecular Mechanisms. FRONTIERS IN PLANT SCIENCE 2020; 11:1102. [PMID: 32849682 PMCID: PMC7426474 DOI: 10.3389/fpls.2020.01102,] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 07/03/2020] [Indexed: 05/29/2023]
Abstract
Iron (Fe) is an essential nutrient for all living organisms but can lead to cytotoxicity when present in excess. Fe toxicity often occurs in rice grown in submerged paddy fields with low pH, leading dramatical increases in ferrous ion concentration, disrupting cell homeostasis and impairing growth and yield. However, the underlying molecular mechanisms of Fe toxicity response and tolerance in plants are not well characterized yet. Microarray and genome-wide association analyses have shown that rice employs four defense systems to regulate Fe homeostasis under Fe excess. In defense 1, Fe excess tolerance is implemented by Fe exclusion as a result of suppression of genes involved in Fe uptake and translocation such as OsIRT1, OsYSL2, OsTOM1, OsYSL15, OsNRAMP1, OsNAS1, OsNAS2, OsNAAT1, OsDMAS1, and OsIRO2. The Fe-binding ubiquitin ligase, HRZ, is a key regulator that represses Fe uptake genes in response to Fe excess in rice. In defense 2, rice retains Fe in the root system rather than transporting it to shoots. In defense 3, rice compartmentalizes Fe in the shoot. In defense 2 and 3, the vacuolar Fe transporter OsVIT2, Fe storage protein ferritin, and the nicotinamine synthase OsNAS3 mediate the isolation or detoxification of excess Fe. In defense 4, rice detoxifies the ROS produced within the plant body in response to excess Fe. Some OsWRKY transcription factors, S-nitrosoglutathione-reductase variants, p450-family proteins, and OsNAC4, 5, and 6 are implicated in defense 4. These knowledge will facilitate the breeding of tolerant crops with increased productivity in low-pH, Fe-excess soils.
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33
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Aung MS, Masuda H. How Does Rice Defend Against Excess Iron?: Physiological and Molecular Mechanisms. FRONTIERS IN PLANT SCIENCE 2020; 11:1102. [PMID: 32849682 PMCID: PMC7426474 DOI: 10.3389/fpls.2020.01102] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 07/03/2020] [Indexed: 05/25/2023]
Abstract
Iron (Fe) is an essential nutrient for all living organisms but can lead to cytotoxicity when present in excess. Fe toxicity often occurs in rice grown in submerged paddy fields with low pH, leading dramatical increases in ferrous ion concentration, disrupting cell homeostasis and impairing growth and yield. However, the underlying molecular mechanisms of Fe toxicity response and tolerance in plants are not well characterized yet. Microarray and genome-wide association analyses have shown that rice employs four defense systems to regulate Fe homeostasis under Fe excess. In defense 1, Fe excess tolerance is implemented by Fe exclusion as a result of suppression of genes involved in Fe uptake and translocation such as OsIRT1, OsYSL2, OsTOM1, OsYSL15, OsNRAMP1, OsNAS1, OsNAS2, OsNAAT1, OsDMAS1, and OsIRO2. The Fe-binding ubiquitin ligase, HRZ, is a key regulator that represses Fe uptake genes in response to Fe excess in rice. In defense 2, rice retains Fe in the root system rather than transporting it to shoots. In defense 3, rice compartmentalizes Fe in the shoot. In defense 2 and 3, the vacuolar Fe transporter OsVIT2, Fe storage protein ferritin, and the nicotinamine synthase OsNAS3 mediate the isolation or detoxification of excess Fe. In defense 4, rice detoxifies the ROS produced within the plant body in response to excess Fe. Some OsWRKY transcription factors, S-nitrosoglutathione-reductase variants, p450-family proteins, and OsNAC4, 5, and 6 are implicated in defense 4. These knowledge will facilitate the breeding of tolerant crops with increased productivity in low-pH, Fe-excess soils.
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Diop B, Wang DR, Drame KN, Gracen V, Tongoona P, Dzidzienyo D, Nartey E, Greenberg AJ, Djiba S, Danquah EY, McCouch SR. Bridging old and new: diversity and evaluation of high iron-associated stress response of rice cultivated in West Africa. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:4188-4200. [PMID: 32277700 DOI: 10.1093/jxb/eraa182] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 04/09/2020] [Indexed: 05/20/2023]
Abstract
Adoption of rice varieties that perform well under high iron-associated (HIA) stress environments can enhance rice production in West Africa. This study reports the genetic characterization of 323 rice accessions and breeding lines cultivated in West Africa using genotyping-by-sequencing and their phenotypic response to HIA treatments in hydroponic solution (1500 mg l-1 FeSO4·7H2O) and hot-spot fields. The germplasm consisted of four genetic subpopulations: Oryza glaberrima (14%), O. sativa-japonica (7%), O. sativa-indica Group 1 (45%), and O. sativa-indica Group 2 (25%). Severe versus mild stress in the field was associated with a reduced SPAD value (12%), biomass (56%), and grain yield (57%), with leaf bronzing explaining 30% and 21% of the variation for biomass and grain yield, respectively. Association mapping using 175 indica genotypes identified 23 significant single nucleotide polymorphism (SNP) markers that mapped to 14 genomic regions. Genome-wide association study (GWAS) signals associated with leaf bronzing, a routinely used indicator of HIA stress, differed in hydroponic compared with field conditions. Contrastingly, six significant SNPs on chromosomes 8 and 9 were associated with the SPAD value under HIA stress in both field and hydroponic experiments, and a candidate potassium transporter gene mapped under the peak on chromosome 8. This study helps define criteria for assessing rice performance under HIA environments.
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Affiliation(s)
- Bathe Diop
- Institut Sénégalais de Recherches Agricoles/Centre de Recherches Agricoles de Djibélor, Ziguinchor, Senegal
- West Africa Centre for Crop Improvement, University of Ghana, Legon, Ghana
| | - Diane R Wang
- Purdue University, Department of Agronomy, West Lafayette, IN, USA
- Plant Breeding & Genetics, School of Integrated Plant Sciences, Cornell University, Ithaca, NY, USA
| | - Khady N Drame
- Africa Rice Center (AfricaRice), Abidjan 01, Cote d'Ivoire
| | - Vernon Gracen
- West Africa Centre for Crop Improvement, University of Ghana, Legon, Ghana
- Plant Breeding & Genetics, School of Integrated Plant Sciences, Cornell University, Ithaca, NY, USA
| | - Pangirayi Tongoona
- West Africa Centre for Crop Improvement, University of Ghana, Legon, Ghana
| | - Daniel Dzidzienyo
- West Africa Centre for Crop Improvement, University of Ghana, Legon, Ghana
| | - Eric Nartey
- University of Ghana, Department of Soil Science, School of Agriculture, Legon, Ghana
| | | | - Saliou Djiba
- Institut Sénégalais de Recherches Agricoles/Centre de Recherches Agricoles de Djibélor, Ziguinchor, Senegal
| | - Eric Y Danquah
- West Africa Centre for Crop Improvement, University of Ghana, Legon, Ghana
| | - Susan R McCouch
- Plant Breeding & Genetics, School of Integrated Plant Sciences, Cornell University, Ithaca, NY, USA
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35
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Zhang P, Guo Z, Luo W, Monikh FA, Xie C, Valsami-Jones E, Lynch I, Zhang Z. Graphene Oxide-Induced pH Alteration, Iron Overload, and Subsequent Oxidative Damage in Rice ( Oryza sativa L.): A New Mechanism of Nanomaterial Phytotoxicity. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:3181-3190. [PMID: 32083855 DOI: 10.1021/acs.est.9b05794] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The mechanism of graphene-based nanomaterial (GBM)-induced phytotoxicity and its association with the GBM physicochemical properties are not yet fully understood. The present study compared the effects of graphene oxide (GO) and reduced GO (rGO) on rice seedling growth under hydroponic conditions for 3 weeks. GO at 100 and 250 mg/L reduced shoot biomass (by 25 and 34%, respectively) and shoot elongation (by 17 and 43%, respectively) and caused oxidative damage, while rGO exhibited no overt effect except for the enhancement of the antioxidant enzyme activities, suggesting that the surface oxygen content is a critical factor affecting the biological impacts of GBMs. GO treatments (100 and 250 mg/L) enhanced the iron (Fe) translocation and caused excessive Fe accumulation in shoots (2.2 and 3.6 times higher than control), which was found to be the main reason for the oxidative damage in shoots. GO-induced acidification of the nutrient solution was the main driver for the Fe overload in plants. In addition to the antioxidant regulators, the plants triggered other pathways to defend against the Fe toxicity via downregulation of the Fe transport associated metabolites (mainly coumarins and flavonoids). Plant root exudates facilitated the reduction of toxic GO to nontoxic rGO, acting as another route for plant adaption to GO-induced phytotoxicity. This study provides new insights into the mechanism of the phytotoxicity of GBMs. It also provides implications for the agricultural application of GBM that the impacts of GBMs on the uptake of multiple nutrients in plants should be assessed simultaneously and reduced forms of GBMs are preferential to avoid toxicity.
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Affiliation(s)
- Peng Zhang
- Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- School of Geography, Earth and Environmental Science, University of Birmingham, Edgbaston, B15 2TT Birmingham, U.K
| | - Zhiling Guo
- School of Geography, Earth and Environmental Science, University of Birmingham, Edgbaston, B15 2TT Birmingham, U.K
| | - Wenhe Luo
- Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | | | - Changjian Xie
- Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Eugenia Valsami-Jones
- School of Geography, Earth and Environmental Science, University of Birmingham, Edgbaston, B15 2TT Birmingham, U.K
| | - Iseult Lynch
- School of Geography, Earth and Environmental Science, University of Birmingham, Edgbaston, B15 2TT Birmingham, U.K
| | - Zhiyong Zhang
- Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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Melandri G, Sikirou M, Arbelaez JD, Shittu A, Semwal VK, Konaté KA, Maji AT, Ngaujah SA, Akintayo I, Govindaraj V, Shi Y, Agosto-Peréz FJ, Greenberg AJ, Atlin G, Ramaiah V, McCouch SR. Multiple Small-Effect Alleles of Indica Origin Enhance High Iron-Associated Stress Tolerance in Rice Under Field Conditions in West Africa. FRONTIERS IN PLANT SCIENCE 2020; 11:604938. [PMID: 33584748 PMCID: PMC7874229 DOI: 10.3389/fpls.2020.604938] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 12/15/2020] [Indexed: 05/03/2023]
Abstract
Understanding the genetics of field-based tolerance to high iron-associated (HIA) stress in rice can accelerate the development of new varieties with enhanced yield performance in West African lowland ecosystems. To date, few field-based studies have been undertaken to rigorously evaluate rice yield performance under HIA stress conditions. In this study, two NERICA × O. sativa bi-parental rice populations and one O.sativa diversity panel consisting of 296 rice accessions were evaluated for grain yield and leaf bronzing symptoms over multiple years in four West African HIA stress and control sites. Mapping of these traits identified a large number of QTLs and single nucleotide polymorphisms (SNPs) associated with stress tolerance in the field. Favorable alleles associated with tolerance to high levels of iron in anaerobic rice soils were rare and almost exclusively derived from the indica subpopulation, including the most favorable alleles identified in NERICA varieties. These findings highlight the complex genetic architecture underlying rice response to HIA stress and suggest that a recurrent selection program focusing on an expanded indica genepool could be productively used in combination with genomic selection to increase the efficiency of selection in breeding programs designed to enhance tolerance to this prevalent abiotic stress in West Africa.
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Affiliation(s)
- Giovanni Melandri
- Plant Breeding and Genetics, Cornell University, Ithaca, NY, United States
| | - Mouritala Sikirou
- Africa Rice Center, Ibadan, Nigeria
- School of Horticulture and Green Landscaping, Kétou, Bénin
| | - Juan D. Arbelaez
- Plant Breeding and Genetics, Cornell University, Ithaca, NY, United States
| | | | | | | | | | | | - Inoussa Akintayo
- Central Agricultural Research Institute, Suakoko, Liberia
- Africa Rice Center, Suakoko, Liberia
| | - Vishnu Govindaraj
- Plant Breeding and Genetics, Cornell University, Ithaca, NY, United States
| | - Yuxin Shi
- Plant Breeding and Genetics, Cornell University, Ithaca, NY, United States
| | | | | | - Gary Atlin
- Bill & Melinda Gates Foundation, Seattle, WA, United States
| | | | - Susan R. McCouch
- Plant Breeding and Genetics, Cornell University, Ithaca, NY, United States
- Venuprasad Ramaiah,
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37
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Mahender A, Ali J, Prahalada GD, Sevilla MAL, Balachiranjeevi CH, Md J, Maqsood U, Li Z. Genetic dissection of developmental responses of agro-morphological traits under different doses of nutrient fertilizers using high-density SNP markers. PLoS One 2019; 14:e0220066. [PMID: 31335882 PMCID: PMC6650078 DOI: 10.1371/journal.pone.0220066] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 07/07/2019] [Indexed: 11/19/2022] Open
Abstract
The production and productivity of rice (Oryza sativa L.) are primarily influenced by the application of the critical nutrients nitrogen (N), phosphorus (P), and potassium (K). However, excessive application of these fertilizers is detrimental to the environment and increases the cost of production. Hence, there is a need to develop varieties that simultaneously increase yields under both optimal and suboptimal rates of fertilizer application by maximizing nutrient use efficiency (NuUE). To unravel the hidden genetic variation and understand the molecular and physiological mechanisms of NuUE, three different mapping populations (MPs; BC1F5) derived from three donors (Haoannong, Cheng-Hui 448, and Zhong 413) and recipient Weed Tolerant Rice 1 were developed. A total of three favorable agronomic traits (FATs) were considered as the measure of NuUE. Analysis of variance and descriptive statistics indicated the existence of genetic variation for NuUE and quantitative inheritance of FATs. The genotypic data from single-nucleotide polymorphism (SNP) markers from Tunable Genotyping-By-Sequencing (tGBS) and phenotypic values were used for locating the genomic regions conferring NuUE. A total of 19 quantitative trait loci (QTLs) were detected, out of which 11 QTLs were putative on eight chromosomes, which individually explained 17.02% to 34.85% of the phenotypic variation. Notably, qLC-II_1 and qLC-II_11 detected at zero fertilizer application showed higher performance for LC under zero percentage of NPK fertilizer. The remarkable findings of the present study are that the detected QTLs were associated in building tolerance to low/no nutrient application and six candidate genes on chromosomes 2 and 5 within these putative QTLs were found associated with low nutrient tolerance and related to several physiological and metabolic pathways involved in abiotic stress tolerance. The identified superior introgressed lines (ILs) and trait-associated genetic regions can be effectively used in marker-assisted selection (MAS) for NuUE breeding programs.
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Affiliation(s)
- Anumalla Mahender
- Rice Breeding Platform, International Rice Research Institute, Los Baños, Manila, Philippines
| | - Jauhar Ali
- Rice Breeding Platform, International Rice Research Institute, Los Baños, Manila, Philippines
- * E-mail:
| | - G. D. Prahalada
- Strategic Innovation Platform, International Rice Research Institute, Los Baños, Manila, Philippines
| | - Ma. Anna Lynn Sevilla
- Rice Breeding Platform, International Rice Research Institute, Los Baños, Manila, Philippines
| | - C. H. Balachiranjeevi
- Rice Breeding Platform, International Rice Research Institute, Los Baños, Manila, Philippines
| | - Jamaloddin Md
- Rice Breeding Platform, International Rice Research Institute, Los Baños, Manila, Philippines
| | - Umer Maqsood
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Pakistan
| | - Zhikang Li
- Chinese Academy of Agricultural Sciences, Haidian District, P.R. China
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The Adaptive Mechanism of Plants to Iron Deficiency via Iron Uptake, Transport, and Homeostasis. Int J Mol Sci 2019; 20:ijms20102424. [PMID: 31100819 PMCID: PMC6566170 DOI: 10.3390/ijms20102424] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/11/2019] [Accepted: 05/14/2019] [Indexed: 01/31/2023] Open
Abstract
Iron is an essential element for plant growth and development. While abundant in soil, the available Fe in soil is limited. In this regard, plants have evolved a series of mechanisms for efficient iron uptake, allowing plants to better adapt to iron deficient conditions. These mechanisms include iron acquisition from soil, iron transport from roots to shoots, and iron storage in cells. The mobilization of Fe in plants often occurs via chelating with phytosiderophores, citrate, nicotianamine, mugineic acid, or in the form of free iron ions. Recent work further elucidates that these genes’ response to iron deficiency are tightly controlled at transcriptional and posttranscriptional levels to maintain iron homeostasis. Moreover, increasing evidences shed light on certain factors that are identified to be interconnected and integrated to adjust iron deficiency. In this review, we highlight the molecular and physiological bases of iron acquisition from soil to plants and transport mechanisms for tolerating iron deficiency in dicotyledonous plants and rice.
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