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Kumar J, Saini DK, Kumar A, Kumari S, Gahlaut V, Rahim MS, Pandey AK, Garg M, Roy J. Biofortification of Triticum species: a stepping stone to combat malnutrition. BMC PLANT BIOLOGY 2024; 24:668. [PMID: 39004715 PMCID: PMC11247745 DOI: 10.1186/s12870-024-05161-x] [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: 03/02/2023] [Accepted: 05/16/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND Biofortification represents a promising and sustainable strategy for mitigating global nutrient deficiencies. However, its successful implementation poses significant challenges. Among staple crops, wheat emerges as a prime candidate to address these nutritional gaps. Wheat biofortification offers a robust approach to enhance wheat cultivars by elevating the micronutrient levels in grains, addressing one of the most crucial global concerns in the present era. MAIN TEXT Biofortification is a promising, but complex avenue, with numerous limitations and challenges to face. Notably, micronutrients such as iron (Fe), zinc (Zn), selenium (Se), and copper (Cu) can significantly impact human health. Improving Fe, Zn, Se, and Cu contents in wheat could be therefore relevant to combat malnutrition. In this review, particular emphasis has been placed on understanding the extent of genetic variability of micronutrients in diverse Triticum species, along with their associated mechanisms of uptake, translocation, accumulation and different classical to advanced approaches for wheat biofortification. CONCLUSIONS By delving into micronutrient variability in Triticum species and their associated mechanisms, this review underscores the potential for targeted wheat biofortification. By integrating various approaches, from conventional breeding to modern biotechnological interventions, the path is paved towards enhancing the nutritional value of this vital crop, promising a brighter and healthier future for global food security and human well-being.
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Affiliation(s)
- Jitendra Kumar
- National Agri-Food Biotechnology Institute (NABI), Mohali-140306, Mohali, Punjab, India.
| | - Dinesh Kumar Saini
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, 141004, India
| | - Ashish Kumar
- National Agri-Food Biotechnology Institute (NABI), Mohali-140306, Mohali, Punjab, India
| | - Supriya Kumari
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, New Delhi, 110078, India
| | - Vijay Gahlaut
- Department of Biotechnology, University Center for Research and Development Chandigarh University, Gharuan, Mohali, Punjab, 140413, India
| | - Mohammed Saba Rahim
- CSIR - Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, 176061, India
| | - Ajay Kumar Pandey
- National Agri-Food Biotechnology Institute (NABI), Mohali-140306, Mohali, Punjab, India
| | - Monika Garg
- National Agri-Food Biotechnology Institute (NABI), Mohali-140306, Mohali, Punjab, India
| | - Joy Roy
- National Agri-Food Biotechnology Institute (NABI), Mohali-140306, Mohali, Punjab, India.
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Cao J, Tan X, Cheng X. Over-expression of the BnVIT-L2 gene improves the lateral root development and biofortification under iron stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108501. [PMID: 38452450 DOI: 10.1016/j.plaphy.2024.108501] [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: 12/10/2023] [Revised: 02/17/2024] [Accepted: 03/02/2024] [Indexed: 03/09/2024]
Abstract
The vacuolar iron transporter (VIT) family is responsible for absorbing and storing iron ions in vacuoles. Here, the BnVIT-L2 gene from Brassica napus has been cloned for the first time and was found to be expressed in multiple tissues and organs, induced by iron stress. The BnVIT-L2 protein is located in vacuolar membranes and has the ability to bind both iron and other bivalent metal ions. Over-expression of the BnVIT-L2 gene increased lateral root number and main root length, as well as chlorophyll and iron content in transgenic Arabidopsis plants (BnVIT-L2/At) exposed to iron stress, compared to wild type Col-0. Furthermore, over-expression of this gene improved the adaptability of transgenic B. napus plants (BnVIT-L2-OE) under iron stress. The regulation of plant tolerance under iron stress by BnVIT-L2 gene may involve in the signal of reactive oxygen species (ROS), as suggested by Ribosome profiling sequencing (Ribo-seq). This study provides a reference for investigating plant growth and biofortification under iron stress through the BnVIT-L2 gene.
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Affiliation(s)
- Jun Cao
- School of Life Sciences, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
| | - Xiaona Tan
- School of Life Sciences, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Xiuzhu Cheng
- School of Life Sciences, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
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Mlangeni AT. Methylation of arsenic in rice: Mechanisms, factors, and mitigation strategies. Toxicol Rep 2023; 11:295-306. [PMID: 37789952 PMCID: PMC10543780 DOI: 10.1016/j.toxrep.2023.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 09/16/2023] [Accepted: 09/23/2023] [Indexed: 10/05/2023] Open
Abstract
Arsenic contamination in rice poses a significant health risk to rice consumers across the globe. This review examines the impact of water source and type on the speciation and methylation of arsenic in rice. The review highlights that groundwater used for irrigation in arsenic-affected regions can lead to higher total arsenic content in rice grains and lower proportions of methylated arsenic species. The methylation of As in rice is influenced by microbial activity in groundwater, which can methylate arsenic that is taken up by rice plants. Reclaimed water irrigation can also increase the risk of arsenic accumulation in rice crops, although the use of organic amendments and proper water management practices can reduce arsenic accumulation. Different water management regimes, such as continuous flooding irrigation, alternate wetting and drying, aerobic rice cultivation, and subsurface drip irrigation, can affect the speciation and methylation of As in rice. Continuous flooding irrigation reduces methylation of As due to anaerobic conditions, while alternate wetting and drying and aerobic rice cultivation promote methylation by creating aerobic conditions that stimulate the activity of arsenic-methylating microorganisms. Subsurface drip irrigation reduces total arsenic content in rice grains and increases the proportion of less toxic methylated arsenic species. The review also discusses the complex mechanisms of As-methylation and transport in rice, emphasizing the importance of understanding these mechanisms to develop strategies for reducing arsenic uptake in rice plants and mitigating health risks. The review addresses the impact of water source and type on arsenic speciation and methylation in rice and highlights the need for proper water management and treatment measures to ensure the safety of the food supply as well as aiding future research and policies to reduce health risks from rice consumption. The critical information gaps that this review addresses include the specific effects of different water management regimes on As-methylation, the role of microbial communities in groundwater in As-methylation, and the potential risks associated with the use of reclaimed water for irrigation.
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Kutlu I, Çelik S, Karaduman Y, Yorgancılar Ö. Phenotypic and genetic diversity of doubled haploid bread wheat population and molecular validation for spike characteristics, end-use quality, and biofortification capacity. PeerJ 2023; 11:e15485. [PMID: 37312880 PMCID: PMC10259445 DOI: 10.7717/peerj.15485] [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: 03/09/2023] [Accepted: 05/10/2023] [Indexed: 06/15/2023] Open
Abstract
Increasing grain quality and nutritional value along with yield in bread wheat is one of the leading breeding goals. Selection of genotypes with desired traits using traditional breeding selection methods is very time-consuming and often not possible due to the interaction of environmental factors. By identifying DNA markers that can be used to identify genotypes with desired alleles, high-quality and bio-fortified bread wheat production can be achieved in a short time and cost-effectively. In the present study, 134 doubled haploid (DH) wheat lines and their four parents were phenotypically evaluated for yield components (spike characteristics), quality parameters, and grain Fe and Zn concentrations in two successive growing seasons. At the same time, ten genic simple sequence repeats (SSR) markers linked to genes related to the traits examined were validated and subsequently used for molecular characterization of trait-specific candidate genotypes. Significant genotypic variations were determined for all studied traits and many genotypes with desired phenotypic values were detected. The evaluation performed with 10 SSR markers revealed significant polymorphism between genotypes. The polymorphic information content (PIC) values of 10 markers ranged from 0.00 to 0.87. Six out of 10 SSRs could be more effective in representing the genotypic differentiation of the DH population as they demonstrated the highest genetic diversity. Both Unweighted Pair Group Method with Arithmetic Mean (UPGMA) clustering and STRUCTURE analyses divided 138 wheat genotypes into five (K = 5) main groups. These analyzes were indicative of genetic variation due to hybridization and segregation in the DH population and the differentiation of the genotypes from their parents. Single marker regression analysis showed that both Xbarc61 and Xbarc146 had significant relationships with grain Fe and Zn concentrations, while Xbarc61 related to spike characteristics and Xbarc146 related to quality traits, separately. Other than these, Xgwm282 was associated with spike harvest index, SDS sedimentation value and Fe grain concentration, while Gwm445 was associated with spikelet number, grain number per spike and grain Fe concentration. These markers were validated for the studied DH population during the present study and they could be effectively used for marker-assisted selection to improve grain yield, quality, and bio-fortification capacity of bread wheat.
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Affiliation(s)
- Imren Kutlu
- Department of Field Crops, Faculty of Agriculture, Osmangazi University, Eskişehir, Turkey
| | - Sadettin Çelik
- Department of Forestry, Genç Vocational School, Bingöl University, Bingöl, Turkey
| | - Yaşar Karaduman
- Department of Food Engineering, Faculty of Agriculture, Osmangazi University, Eskişehir, Turkey
| | - Özcan Yorgancılar
- Department of Biotechnology, Transitional Zone Agricultural Research Institute, Eskişehir, Turkey
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Bashir A, Khan QU, Alem A, Hendi AA, Zaman U, Khan SU, Rehman KU, Khan AA, Ullah I, Anwar Y, Abdelrahman EA. Zinc and Potassium Fertilizer Synergizes Plant Nutrient Availability and Affects Growth, Yield, and Quality of Wheat Genotypes. PLANTS (BASEL, SWITZERLAND) 2023; 12:2241. [PMID: 37375867 DOI: 10.3390/plants12122241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/03/2023] [Accepted: 06/04/2023] [Indexed: 06/29/2023]
Abstract
The growth and productivity of wheat crops depend on the availability of essential nutrients such as zinc (Zn) and potassium (K2O), which play critical roles in the plant's physiological and biochemical processes. This study aimed to investigate the synergizing effect of zinc and potassium fertilizers on uptake of both the nutrients, growth, yield, and quality of the Hashim-08 cultivar and local landrace, during the 2019-2020 growing season in Dera Ismail Khan, Pakistan. The experiment was designed using a split plot pattern in a randomized complete pattern, with main plots for the wheat cultivars and subplots for the fertilizer treatments. Results indicated that both cultivars responded positively to the fertilizer treatments, with the local landrace exhibiting maximum plant height and biological yield, and improved Hashim-08, showing increased agronomic parameters, including the number of tillers and grains and spike length. Application of Zn and K2O fertilizers significantly enhanced agronomic parameters, such as the number of grains per plant, spike length, thousand-grain weight, grain yield, harvest index, Zn uptake of grain, dry gluten content, and grain moisture content, while crude protein and grain potassium remained relatively unchanged. The soil's Zn and K content dynamics were found to vary among treatments. In conclusion, the combined application of Zn and K2O fertilizers proved beneficial in improving the growth, yield, and quality of wheat crops, with the local landrace exhibiting lower grain yield but greater Zn uptake through fertilizer application. The study's findings highlight that the local landrace showed good response to the growth and qualitative parameter when compared with the Hashim-08 cultivar. Additionally, the combined application of Zn and K showed a positive relation in terms of nutrient uptake and soil Zn and K content.
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Affiliation(s)
- Aneela Bashir
- Department of Soil Sciences, Faculty of Agriculture, Gomal University, Dera Ismail Khan 29111, Pakistan
| | - Qudrat Ullah Khan
- Department of Soil Sciences, Faculty of Agriculture, Gomal University, Dera Ismail Khan 29111, Pakistan
| | - Ahmad Alem
- Adult Critical Care & Emergency Consultant Emergency Department, King Saud Medical City, Riyadh 12746, Saudi Arabia
| | - Awatif A Hendi
- Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Umber Zaman
- Institute of Chemical Sciences, Gomal University, Dera Ismail Khan 29050, Pakistan
| | - Shahid Ullah Khan
- Integrative Science Centre of Germplasm Creation in Western China (CHONGQING) Science City and Southwest University, College of Agronomy and Biotechnology, Southwest University, Chongqing 400715, China
- Department of Biochemistry, Women Medical and Dental College, Khyber Medical University, Peshawar 25100, Pakistan
| | - Khalil Ur Rehman
- Institute of Chemical Sciences, Gomal University, Dera Ismail Khan 29050, Pakistan
| | - Asghar Ali Khan
- Department of Agronomy, Gomal University, Dera Ismail Khan 29111, Pakistan
| | - Ihsan Ullah
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Yasir Anwar
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Ehab A Abdelrahman
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
- Chemistry Department, Faculty of Science, Benha University, Benha 13518, Egypt
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Xu L, Wang R, Jin B, Chen J, Jiang T, Ali W, Tian S, Lu L. Cadmium inhibits powdery mildew colonization and reconstructs microbial community in leaves of the hyperaccumulator plant Sedum alfredii. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 260:115076. [PMID: 37257346 DOI: 10.1016/j.ecoenv.2023.115076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/27/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023]
Abstract
Understanding the influence of the heavy metal cadmium (Cd) on the phyllosphere microbiome of hyperaccumulator plants is crucial for enhancing phytoremediation. The characteristics of the phyllosphere of Sedum alfredii Hance, a hyperaccumulator plant, were investigated using 16S rRNA and internal transcribed spacer amplicon sequencing of powdery mildew-infected leaves treated or untreated with Cd. The results showed that the colonization of powdery mildew caused severe chlorosis and necrosis in S. alfredii leaves, and the relative abundance of Leotiomycetes in infected leaves increased dramatically and significantly decreased phyllosphere microbiome diversity. However, S. alfredii preferentially accumulated higher concentrations of Cd in the leaves of infected plants than in uninfected plants by powdery mildew, which in turn significantly inhibited powdery mildew colonization in leaves; the relative abundance of the fungal class Leotiomycetes in infected leaves decreased, and alpha and beta diversities of the phyllosphere microbiome significantly increased with Cd treatment in the infected plants. In addition, the inter-kingdom networks in the microbiota of the infected leaves treated with Cd presented many nodes and edges, and the highest inter-kingdom modularity compared to the untreated infected leaves, indicating a highly connected microbial community. These results suggest that Cd significantly inhibits powdery mildew colonization by altering the composition of the phyllosphere microbiome in S. alfredii leaves, paving the way for efficient heavy metal phytoremediation and providing a new perspective on defense strategies against heavy metals.
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Affiliation(s)
- Lingling Xu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Runze Wang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Bingjie Jin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jiuzhou Chen
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Tianchi Jiang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Waqar Ali
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Science's, Guiyang 550081, China
| | - Shengke Tian
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Agricultural Resource and Environment of Zhejiang Province, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Lingli Lu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Agricultural Resource and Environment of Zhejiang Province, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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7
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Ajeesh Krishna TP, Maharajan T, Antony Ceasar S. Significance and genetic control of membrane transporters to improve phytoremediation and biofortification processes. Mol Biol Rep 2023:10.1007/s11033-023-08521-2. [PMID: 37212961 DOI: 10.1007/s11033-023-08521-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 05/11/2023] [Indexed: 05/23/2023]
Abstract
Humans frequently consume plant-based foods in their daily life. Contamination of agricultural soils by heavy metals (HMs) is a major food and nutritional security issue. The crop plants grown in HM-contaminated agricultural soil may accumulate more HMs in their edible part, further transferring into the food chain. Consumption of HM-rich crops can cause severe health issues in humans. On the other hand, the low content of the essential HM in the edible part of the crop also causes health problems. Therefore, researchers must try to reduce the non-essential HM in the edible part of the crop plants and improve the essential HMs. Phytoremediation and biofortification are the two strategies for resolving this problem. The genetic component helps to improve the efficiency of phytoremediation and biofortification processes in plants. They help eliminate HMs from soil and improve essential HM content in crop plants. The membrane transporter genes (genetic components) are critical in these two strategies. Therefore, engineering membrane transporter genes may help reduce the non-essential HM content in the edible part of crop plants. Targeted gene editing by genome editing tools like CRISPR could help plants achieve efficient phytoremediation and biofortification. This article covers gene editing's scope, application, and implication to improve the phytoremediation and biofortification processes in non-crop and crop plants.
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Affiliation(s)
- T P Ajeesh Krishna
- Division of Plant Molecular Biology and Biotechnology, Department of Biosciences, Rajagiri College of Social Sciences, Kochi, Kerala, 683104, India
| | - Theivanayagam Maharajan
- Division of Plant Molecular Biology and Biotechnology, Department of Biosciences, Rajagiri College of Social Sciences, Kochi, Kerala, 683104, India
| | - S Antony Ceasar
- Division of Plant Molecular Biology and Biotechnology, Department of Biosciences, Rajagiri College of Social Sciences, Kochi, Kerala, 683104, India.
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Moreno-Nombela S, Romero-Parra J, Ruiz-Ojeda FJ, Solis-Urra P, Baig AT, Plaza-Diaz J. Genome Editing and Protein Energy Malnutrition. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1396:215-232. [DOI: 10.1007/978-981-19-5642-3_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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Beesley L, Trakal L, Hough R, Mitchell K. Mobility and crop uptake of Zn in a legacy sludge-enriched agricultural soil amended with biochar or compost: insights from a pot and recirculating column leaching test. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:83545-83553. [PMID: 35764732 DOI: 10.1007/s11356-022-21744-3] [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: 03/24/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
The application of organic amendments to contaminated soils is a remediation method to regulate metal(loid) leaching to waters and uptake to crops. Here, wood-derived biochar and/or green waste compost was amended to a Zn-rich agricultural soil (~ 450 mg kg-1 total Zn, derived from legacy sludge application). A pot experiment grew barley and pea crops in amended soil for 100 days, simultaneously measuring Zn, pH, and dissolved organic carbon (DOC) in pore waters and Zn uptake to plants. An assessment was made of leaching of Zn via a linked column test that recirculated soil leachates to amendments multiple times to chart the confounding impacts of pH and DOC on Zn mobility. Concentrations of Zn in pore waters in the pot test were reduced from 2 mg l-1 in soil without amendment to 1 mg l-1 following the addition of 5% (vol.) biochar and compost, which was reduced further (0.5 mg l-1) in the presence of crops. DOC appeared largely unaffected by soil amendment when mixed into soil, though was universally increased by the presence of the barley crop, whilst pH was variable (pH 4-6) and not clearly correlated with any intervention. Barley head mass was significantly increased after 5% biochar and both doses of compost amendment. Barley Zn content was maintained or enhanced by all soil amendments. The leaching column test revealed that biochar raised pH above that of the soil and compost amendment. Zn leachate concentrations were also reduced from after biochar amendment. Notably, compost resulted in net mobilisation of Zn from soil. This study demonstrates that the addition of biochar and compost to a Zn-rich agricultural soil was able to reduce pore water Zn considerably, especially in the presence of a barley crop. Compared to compost, biochar was the more efficient sorbent of Zn.
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Affiliation(s)
- Luke Beesley
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129 6 Suchdol, 16500, Prague, Czech Republic
- The James Hutton Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK
| | - Lukas Trakal
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129 6 Suchdol, 16500, Prague, Czech Republic
| | - Rupert Hough
- The James Hutton Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK
| | - Kerry Mitchell
- St. George's University, True Blue, Saint George, W.I., Grenada.
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Schiavon M, Nardi S, Pilon-Smits EAH, Dall’Acqua S. Foliar selenium fertilization alters the content of dietary phytochemicals in two rocket species. FRONTIERS IN PLANT SCIENCE 2022; 13:987935. [PMID: 36119625 PMCID: PMC9470978 DOI: 10.3389/fpls.2022.987935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Biofortification is the process that aims to enrich crops in micronutrients and valuable compounds. Selenium (Se) biofortification has particularly attracted increasing interest in recent times due to the growing number of individuals suffering from Se deficiency. Selenate and selenite are the Se forms most frequently administered to crops. In this study, Se was applied foliarly as selenate at 2.5, 5, or 10 mg per plant to two rocket species, Diplotaxis tenuifolia and Eruca sativa, grown in soil and the effects in terms of Se enrichment and content of primary and secondary metabolites were comparatively analyzed. We also compared our results with those obtained previously when selenate was supplied to the same species in hydroponics by addition to the nutrient solution. In most cases, the results were the opposite. In E. sativa, foliar Se treatment was more effective in promoting Se accumulation, sulfur (S), cysteine, and glucosinolates. No significant effect of Se was evident on total phenolic content, but there were individual phenols. Among amino acids, the content of proline was increased by Se, perhaps to counteract osmotic stress due to high Se accumulation. In D. tenuifolia, the content of S and cysteine decreased under Se treatment, but the amount of glutathione was steady, suggesting a preferred assimilation of cysteine toward the synthesis of this antioxidant. Consistent, the content of methionine and glucosinolates was reduced. The content of total phenolics was enhanced only by the low Se dosage. In both species, selenocysteine (SeCys) was identified, the content of which was higher compared to plants grown hydroponically. Concluding, most metabolic differences between rocket species were observed at high Se supplementation. Low Se foliar fertilization was effective in an enriching rocket in Se without affecting other phytochemicals. However, the Se dosages sufficient for biofortification could be even lower, as the Se concentration in rocket treated with 2.5 mg Se per plant was still very high and the edible part should not be eaten undiluted. Also, a single method of Se supplementation does not appear to be optimal for all plant species or the same species, as the metabolic responses could be very different.
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Affiliation(s)
- Michela Schiavon
- Department of Agricultural, Forest and Food Sciences (DISAFA), University of Turin, Grugliasco, TO, Italy
| | - Serenella Nardi
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Legnaro, PD, Italy
| | | | - Stefano Dall’Acqua
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy
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Żabicka J, Żabicki P, Słomka A, Sliwinska E, Jędrzejczyk-Korycińska M, Nowak T, Migdałek G, Kwiatkowska M, Kuta E. Re-introduction of an extinct population of Pulsatilla patens using different propagation techniques. Sci Rep 2022; 12:14321. [PMID: 35995918 PMCID: PMC9395332 DOI: 10.1038/s41598-022-18397-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 08/10/2022] [Indexed: 11/09/2022] Open
Abstract
The study focuses on the propagation of a rare and endangered plant species (Pulsatilla patens) to re-introduce an extinct population from calamine area in Southern Poland. The plants were propagated from seeds, rhizome cuttings, or regenerated in vitro from shoot tips, hypocotyls with roots or cotyledons of seedlings on Murashige & Skoog (MS) medium supplemented with 0.25 or 0.50 mg L-1 BAP (Benzylaminopurine) via direct and indirect organogenesis or somatic embryogenesis (SE). The most efficient micropropagation method was with shoot tips as an explant on MS + 0.25 mg L-1 BAP where 97% of the explants produced multiple shoots, mass SE was observed after transfer on ½ MS with 2% saccharose; 267 (35%) shoots rooted on ½ MS + 2% saccharose were acclimatized to ex vitro conditions. Flow cytometry revealed genome size stability of propagated plantlets. Low genetic differentiation between micropropagated plantlets and initial material was indicated by ISSR (Inter Simple Sequence Repeat) markers. Totally, 132 vigorous plantlets obtained on various pathways were introduced to the field plots in 2020; 30.33% survived the winter, and several reached the generative stage and flowered in the spring 2021. In next season (March/April 2022) the number of introduced plants decreased to 25% while the number of flowering and fruiting shoots in different clumps increased in some plots. This is the first report of successful re-introduction of the endangered P. patens based on micropropagation, rhizome cuttings, and seed germination.
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Affiliation(s)
- Justyna Żabicka
- Department of Plant Cytology and Embryology, Institute of Botany, Faculty of Biology, Jagiellonian University in Kraków, 9 Gronostajowa St., 30-387, Cracow, Poland
| | - Piotr Żabicki
- Department of Plant Cytology and Embryology, Institute of Botany, Faculty of Biology, Jagiellonian University in Kraków, 9 Gronostajowa St., 30-387, Cracow, Poland
| | - Aneta Słomka
- Department of Plant Cytology and Embryology, Institute of Botany, Faculty of Biology, Jagiellonian University in Kraków, 9 Gronostajowa St., 30-387, Cracow, Poland.
| | - Elwira Sliwinska
- Laboratory of Molecular Biology and Cytometry, Department of Agricultural Biotechnology, Bydgoszcz University of Science and Technology, Kaliskiego Ave. 7, 85-796, Bydgoszcz, Poland
| | - Monika Jędrzejczyk-Korycińska
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, 28 Jagiellońska St., 40-032, Katowice, Poland
| | - Teresa Nowak
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, 28 Jagiellońska St., 40-032, Katowice, Poland
| | - Grzegorz Migdałek
- Institute of Biology, Pedagogical University of Cracow, 2 Podchorążych St., 30-084, Cracow, Poland
| | - Monika Kwiatkowska
- Department of Plant Cytology and Embryology, Institute of Botany, Faculty of Biology, Jagiellonian University in Kraków, 9 Gronostajowa St., 30-387, Cracow, Poland
| | - Elżbieta Kuta
- Department of Plant Cytology and Embryology, Institute of Botany, Faculty of Biology, Jagiellonian University in Kraków, 9 Gronostajowa St., 30-387, Cracow, Poland
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12
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Zang H, Ma J, Wu Z, Yuan L, Lin ZQ, Zhu R, Bañuelos GS, Reiter RJ, Li M, Yin X. Synergistic Effect of Melatonin and Selenium Improves Resistance to Postharvest Gray Mold Disease of Tomato Fruit. FRONTIERS IN PLANT SCIENCE 2022; 13:903936. [PMID: 35812947 PMCID: PMC9257244 DOI: 10.3389/fpls.2022.903936] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/06/2022] [Indexed: 05/23/2023]
Abstract
Melatonin (MT) is a ubiquitous hormone molecule that is commonly distributed in nature. MT not only plays an important role in animals and humans but also has extensive functions in plants. Selenium (Se) is an essential micronutrient for animals and humans, and is a beneficial element in higher plants at low concentrations. Postharvest diseases caused by fungal pathogens lead to huge economic losses worldwide. In this study, tomato fruits were treated with an optimal sodium selenite (20 mg/L) and melatonin (10 μmol/L) 2 h and were stored for 7 days at room temperature simulating shelf life, and the synergistic effects of Se and MT collectively called Se-Mel on gray mold decay in tomato fruits by Botrytis cinerea was investigated. MT did not have antifungal activity against B. cinerea in vitro, while Se significantly inhibited gray mold development caused by B. cinerea in tomatoes. However, the interaction of MT and Se showed significant inhibition of the spread and growth of the disease, showing the highest control effect of 74.05%. The combination of MT with Se treatment enhanced the disease resistance of fruits by improving the activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), as well as increasing the gene expression level of pathogenesis-related (PR) proteins. Altogether, our results indicate that the combination of MT and Se would induce the activation of antioxidant enzymes and increase the expression of PR proteins genes that might directly enhance the resistance in tomato fruit against postharvest pathogenic fungus B. cinerea.
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Affiliation(s)
- Huawei Zang
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agriculture University, Hefei, China
- Key Laboratory of Functional Agriculture, Bio-Engineering Research Centre of Selenium, Suzhou Research Institute, University of Science and Technology of China, Suzhou, China
- Anhui Province Key Laboratory of Polar Environment and Global Change, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
| | - Jiaojiao Ma
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agriculture University, Hefei, China
| | - Zhilin Wu
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agriculture University, Hefei, China
| | - Linxi Yuan
- Department of Health and Environmental Sciences, Xi’an Jiaotong-Liverpool University, Suzhou, China
| | - Zhi-Qing Lin
- Department of Environmental Sciences, Southern Illinois University Edwardsville, Edwardsville, IL, United States
- Department of Biological Sciences, Southern Illinois University Edwardsville, Edwardsville, IL, United States
| | - Renbin Zhu
- Anhui Province Key Laboratory of Polar Environment and Global Change, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
| | - Gary S. Bañuelos
- San Joaquin Valley Agricultural Sciences Center, United States Department of Agriculture – Agricultural Research Service, Parlier, CA, United States
| | - Russel J. Reiter
- Department of Cell Systems and Anatomy, The University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Miao Li
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agriculture University, Hefei, China
- The Central Area of Anhui Province Station for Integrative Agriculture, Research Institute of New Rural Development, Anhui Agricultural University, Hefei, China
| | - Xuebin Yin
- Key Laboratory of Functional Agriculture, Bio-Engineering Research Centre of Selenium, Suzhou Research Institute, University of Science and Technology of China, Suzhou, China
- Anhui Province Key Laboratory of Polar Environment and Global Change, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
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13
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Chen H, Zhang Q, Lv W, Yu X, Zhang Z. Ethylene positively regulates Cd tolerance via reactive oxygen species scavenging and apoplastic transport barrier formation in rice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 302:119063. [PMID: 35248615 DOI: 10.1016/j.envpol.2022.119063] [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: 12/16/2021] [Revised: 02/17/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Ethylene regulates plant root growth and resistance to environment stress. However, the role and mechanism of ethylene signaling in response to Cd stress in rice remains unclear. Here, we revealed that ethylene signaling plays a positive role in the resistance of rice to Cd toxicity. Blocking the ethylene signal facilitated root elongation under normal conditions, but resulted in severe oxidative damage and inhibition of root growth under Cd stress. Conversely, ethylene signal enhancement by EIN2 overexpression caused root bending, similar to the response of roots to Cd stress, and displayed higher Cd tolerance than the wildtype (WT) plants. Comparative transcriptome analysis indicated EIN2-mediated upregulation of genes involved in flavonoid biosynthesis and peroxidase activity under Cd stress. The synthesis of phenolic acids and flavonoids were positively regulated by ethylene. Thus, the ein2 (ethylene insensitive 2) mutants displayed lower ROS scavenging capacity than the WT. Moreover, a significant increase in Cd accumulation and relatively increased apoplastic flow were observed in the root apex of the ein2 mutant compared with the WT plants. Overall, EIN2-mediated Cd resistance in rice is mediated by the upregulation of flavonoid biosynthesis and peroxidase activity to induce ROS scavenging, and apoplastic transport barrier formation reduces Cd uptake.
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Affiliation(s)
- Haifei Chen
- College of Resources and Environmental Sciences, Hunan Agricultural University, 410128, Changsha, China
| | - Quan Zhang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410128, Changsha, China
| | - Wei Lv
- College of Resources and Environmental Sciences, Hunan Agricultural University, 410128, Changsha, China
| | - Xiaoyi Yu
- College of Resources and Environmental Sciences, Hunan Agricultural University, 410128, Changsha, China
| | - Zhenhua Zhang
- College of Resources and Environmental Sciences, Hunan Agricultural University, 410128, Changsha, China.
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14
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Ferreira PAA, Lopes G, Santana NA, Marchezan C, Soares CRFS, Guilherme LRG. Soil amendments affect the potential of Gomphrena claussenii for phytoremediation of a Zn- and Cd-contaminated soil. CHEMOSPHERE 2022; 288:132508. [PMID: 34634277 DOI: 10.1016/j.chemosphere.2021.132508] [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: 06/12/2021] [Revised: 09/28/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
This study assessed the impact of inorganic and organic amendments upon zinc (Zn) and cadmium (Cd) availabilities in leachates collected from a Cd- and Zn-contaminated soil, while also evaluating the beneficial use of the tested amendments for decreasing metal availability, hence improving the phytoremediation potential of Gomphrena claussenii Moq. Plants were grown for 60 days in a Zn-smelting-affected soil containing 45,000 and 621 mg kg-1 of Zn and Cd, respectively (pseudo-total concentrations), after application of the following amendments: limestone, calcium silicate, sewage sludge, triple superphosphate, and red mud. Zinc and Cd availabilities in the soil decreased following the addition of limestone, calcium silicate, and red mud. These amendments were effective in reducing metal mobility and availability, positively affecting plant growth. Plants grown in the soil amended with limestone and calcium silicate accumulated Zn mainly in the roots, while Cd was translocated to plant shoots, with smaller amounts being detected in the roots. Reductions of Zn and Cd concentrations in the leachate were found by adding red mud, with this decrease for Zn being less pronounced compared to what was verified after the application of limestone and calcium silicate. Moreover, the use of red mud resulted in a higher Zn:Cd ratio in the leachate, which favored a greater absorption and transport of Zn from root to shoot. In conclusion, the tested soil amendments reduced the availability of excessive concentrations of Cd and Zn in naturally contaminated soil, which resulted in improved growth and survival of Zn- and Cd-tolerant G. claussenii plants, with the application of limestone, calcium silicate, and red mud - i.e., alkaline amendments - standing out as the best combinations with G. Claussenii when designing a strategy to achieve optimal phytoremediation.
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Affiliation(s)
| | - Guilherme Lopes
- Department of Soil Science, School of Agricultural Science, Federal University of Lavras, Lavras, MG, Brazil
| | - Natielo Almeida Santana
- Department of Soil Science, School of Agricultural Science, Federal University of Lavras, Lavras, MG, Brazil
| | - Carina Marchezan
- Department of Soil Science, School of Agricultural Science, Federal University of Lavras, Lavras, MG, Brazil
| | - Claudio Roberto Fonsêca Sousa Soares
- Centre for Biological Sciences, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
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15
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Inhibition of BRUTUS Enhances Plant Tolerance to Zn Toxicity by Upregulating Pathways Related to Iron Nutrition. Life (Basel) 2022; 12:life12020216. [PMID: 35207503 PMCID: PMC8879508 DOI: 10.3390/life12020216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/21/2022] [Accepted: 01/28/2022] [Indexed: 11/22/2022] Open
Abstract
The identification of the key genes regulating plant tolerance to Zn stress is important for enhancing the Zn phytoremediation of targeted plants. Here, we showed that the T-DNA insertion-induced inhibition of the BRUTUS (BTS) gene in the bts-1 mutant greatly improved Zn tolerance, as indicated by increased biomass production and reduced leaf chlorosis. The ProBTS::BTS-GFP complementation in the bts-1 mutant abolished the improvement of Zn tolerance. Unexpectedly, the bts-1 mutant had higher and comparable Zn concentrations in the roots and citrate effluxer shoots, respectively, compared to wild-type plants. As a result, the shoots and roots of bts-1 mutants had 53% and 193% more Zn accumulation than the wild-type plants, respectively. RNA-seq analyses revealed that the Fe nutrition-related genes were upregulated in bts-1 mutants, especially under Zn stress conditions. Therefore, the bts-1 mutants had a greater Fe concentration and a higher Fe/Zn ratio than the wild-type plants exposed to Zn toxicity. Further study showed that the differences in Zn tolerance between bts-1 and wild-type plants were minimized by eliminating Fe or supplementing excessive Fe in the growth medium. Taken together, the T-DNA insertion-induced inhibition of BTS improves plant Zn tolerance by optimizing Fe nutrition; thus, the knockdown of BTS may be a promising approach for improving Zn phytoremediation efficiency.
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16
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Garcia MG, Lecomte KL, Depetris PJ. Natural and anthropogenic sources of solutes in the wet precipitation of a densely populated city of Southern South America. CHEMOSPHERE 2022; 287:132307. [PMID: 34562703 DOI: 10.1016/j.chemosphere.2021.132307] [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: 07/07/2021] [Revised: 09/15/2021] [Accepted: 09/18/2021] [Indexed: 06/13/2023]
Abstract
The chemistry of rainwater is controlled by the interaction among water, airborne particles and gas sources, whether natural or human-made. This article analyzes the chemical composition dynamics of individual rainfall events collected over a three-year period in the densely populated city of Córdoba (Argentina). The main purpose is to identify the natural and/or anthropogenic sources, and the extent to which they determine the seasonal chemical signature exhibited by wet precipitation in the heart of the South Eastern South America. The results reveal that, despite geogenic components are only minor constituents of the airborne particles in downtown Córdoba, they appear to be the main source of solutes in rainwaters, also responsible for the alkaline water pH that predominates most of the year. This fraction mostly corresponds to wind-blown soil particles transported either from local or distant sources, with rare earth elements (REE) patterns similar to those of rainwaters produced during the dry season. Anthropogenic contributions are only evident during the wet season, when rainwater shows REE patterns similar to those of industrial emissions and exhibits moderate enrichment of heavy metals such as Cu and Zn, derived from soluble compounds used in agricultural activities (e.g, sowing, fertilizing). With the exception of these two metals, the remaining heavy metals are depleted in rainwater suggesting that the airborne conveying compounds (mostly anthropogenic) are barely soluble.
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Affiliation(s)
- M G Garcia
- Centro de Investigaciones en Ciencias de la Tierra (CICTERRA) CONICET -UNC, Argentina; Universidad Nacional de Córdoba, Av. Vélez Sarsfield 1611, X5016CGA, Córdoba, Argentina.
| | - K L Lecomte
- Centro de Investigaciones en Ciencias de la Tierra (CICTERRA) CONICET -UNC, Argentina; Universidad Nacional de Córdoba, Av. Vélez Sarsfield 1611, X5016CGA, Córdoba, Argentina.
| | - P J Depetris
- Universidad Nacional de Córdoba, Av. Vélez Sarsfield 1611, X5016CGA, Córdoba, Argentina; Academia Nacional de Ciencias, Av. Vélez Sarsfield 229-249, X5000WAA, Córdoba, Argentina.
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17
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Leite MCM, de Araujo MA, da Silva de Paiva W, Camargos LS, Martins AR. Morphological responses and tolerance of a tree native to the Brazilian Cerrado Astronium fraxinifolium Schott to boron toxicity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:6900-6910. [PMID: 34467477 DOI: 10.1007/s11356-021-15710-8] [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: 02/08/2021] [Accepted: 07/25/2021] [Indexed: 06/13/2023]
Abstract
The indiscriminate use of fertilizers and chemical pesticides can lead to boron contamination of the soil. Decontamination in general is expensive and results in other impacts. Phytoremediation is a sustainable alternative for soil restoration. Astronium fraxinifolium Schott (Anacardiaceae) is a tree species native to the Cerrado that is considered to be a pioneer species and a selective xerophyte, and it has been widely used in the reforestation and restoration of degraded areas. This study set out to characterize the physiology and anatomy of A. fraxinifolium under different boron concentrations and to assess the tolerance and phytoremediation potential of the species. An experiment with a completely randomized design was conducted in a greenhouse. The carbon allocation and chlorophyll content of leaves of A. fraxinifolium were determined. Boron concentration and the species' tolerance index were calculated from root and shoot samples. Levels of amino acids, proteins, total carbohydrates, starch, phenolic compounds, and anatomical analysis were also measured. A. fraxinifolium showed tolerance to boron concentrations in the substrate and accumulated a greater amount of the element in the aerial part, showing its phytoextraction ability. No significant differences were found in the physiology of A. fraxinifolium; however, some anatomical changes were observed. In the leaves, there were changes in the thickness of the abaxial surface of the epidermis and palisade and spongy parenchyma, and total leaf thickness, and in the roots, there were changes in the thickness of the phloem, diameter of vessel elements, and number of vessel elements per square millimeter. However, boron did not interfere in the development and survival of A. fraxinifolium, which points to the possibility that the species has phytoremediation potential.
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Affiliation(s)
- Marilaine Cristina Marques Leite
- Faculdade de Engenharia de Ilha Solteira, Department of Biology and Animal Science, Universidade Estadual Paulista "Júlio de Mesquita Filho", Ilha Solteira, São Paulo, Brazil
| | - Maycon Anderson de Araujo
- Faculdade de Engenharia de Ilha Solteira, Department of Biology and Animal Science, Universidade Estadual Paulista "Júlio de Mesquita Filho", Ilha Solteira, São Paulo, Brazil
| | - Wesller da Silva de Paiva
- Faculdade de Engenharia de Ilha Solteira, Department of Biology and Animal Science, Universidade Estadual Paulista "Júlio de Mesquita Filho", Ilha Solteira, São Paulo, Brazil
| | - Liliane Santos Camargos
- Faculdade de Engenharia de Ilha Solteira, Department of Biology and Animal Science, Universidade Estadual Paulista "Júlio de Mesquita Filho", Ilha Solteira, São Paulo, Brazil
| | - Aline Redondo Martins
- Faculdade de Engenharia de Ilha Solteira, Department of Biology and Animal Science, Universidade Estadual Paulista "Júlio de Mesquita Filho", Ilha Solteira, São Paulo, Brazil.
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18
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Kavi Kishor PB, Anil Kumar S, Naravula J, Hima Kumari P, Kummari D, Guddimalli R, Edupuganti S, Karumanchi AR, Venkatachalam P, Suravajhala P, Polavarapu R. Improvement of small seed for big nutritional feed. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:2433-2446. [PMID: 34566283 PMCID: PMC8455807 DOI: 10.1007/s12298-021-01071-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 08/04/2021] [Accepted: 09/11/2021] [Indexed: 05/14/2023]
Abstract
Exploding global population, rapid urbanization, salinization of soils, decreasing arable land availability, groundwater resources, and dynamic climatic conditions pose impending damage to our food security by reducing the grain quality and quantity. This issue is further compounded in arid and semi-arid regions due to the shortage of irrigation water and erratic rainfalls. Millets are gluten (a family of proteins)-free and cultivated all over the globe for human consumption, fuel, feed, and fodder. They provide nutritional security for the under- and malnourished. With the deployment of strategies like foliar spray, traditional/marker-assisted breeding, identification of candidate genes for the translocation of important minerals, and genome-editing technologies, it is now tenable to biofortify important millets. Since the bioavailability of iron and zinc has been proven in human trials, the challenge is to make such grains accessible. This review encompasses nutritional benefits, progress made, challenges being encountered, and prospects of enriching millet crops with essential minerals.
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Affiliation(s)
- P. B. Kavi Kishor
- Department of Biotechnology, Vignan’s Foundation for Science, Technology and Research, Vadlamudi, Guntur, Andhra Pradesh 522 213 India
| | - S. Anil Kumar
- Department of Biotechnology, Vignan’s Foundation for Science, Technology and Research, Vadlamudi, Guntur, Andhra Pradesh 522 213 India
- Bioclues.Org, Hyderabad, India
| | - Jalaja Naravula
- Department of Biotechnology, Vignan’s Foundation for Science, Technology and Research, Vadlamudi, Guntur, Andhra Pradesh 522 213 India
| | | | - Divya Kummari
- Department of Genetics, Osmania University, Hyderabad, Telangana, 500 007 India
| | | | - Sujatha Edupuganti
- Department of Botany, Osmania University, Hyderabad, Telangana, 500 007 India
| | - Appa Rao Karumanchi
- Department of Biotechnology, Acharya Nagarjuna University, Guntur, Andhra Pradesh, 522 508 India
| | | | - Prashanth Suravajhala
- Bioclues.Org, Hyderabad, India
- Amrita School of Biotechnology, Amrita University, Amritapuri, 690 525, Clappana, Kerala, India
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19
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Yang WT, Gong XX, Ji H, Shao JF. Qualitative and quantitative characterization of nutrient content and morphology in seeds of bamboo, rice, and wheat. J Cereal Sci 2021. [DOI: 10.1016/j.jcs.2021.103273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Feng R, Zhao P, Zhu Y, Yang J, Wei X, Yang L, Liu H, Rensing C, Ding Y. Application of inorganic selenium to reduce accumulation and toxicity of heavy metals (metalloids) in plants: The main mechanisms, concerns, and risks. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 771:144776. [PMID: 33545486 DOI: 10.1016/j.scitotenv.2020.144776] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 12/19/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
Anthropogenic activities such as mining, industrialization and subsequent emission of industrial waste, and agricultural practices have led to an increase in the accumulation of metal(loid)s in agricultural soils and crops, which threatens the health of people; the risk is more pronounced for individuals whose survival depends on food sources from several contaminated regions. Selenium (Se) is an element essential for the normal functioning of the human body and is a beneficial element for plants. Se deficiency in the diet is a common issue in many countries around the world, such as China and Egypt. >40 diseases are associated with Se deficiency. In practice, Se compounds have been applied through foliar sprays or via base application of fertilizers to increase Se concentration in the edible parts of crops and to satisfy the daily Se intake. Moreover, Se at low concentrations has been used to mitigate the toxicity of many metal(loid)s. In this review, we present an overview of the latest knowledge and practices with regards to the utilization of Se to reduce the uptake/toxicity of metal(loid)s in plants. We have focused on the following issues: 1) the current status of understanding the mechanisms of detoxification and uptake restriction of metal(loid)s regulated by Se; 2) the optimal dose and speciation of Se, and stage of plant growth that is optimal for application; 3) the differences in the efficiency of different application methods of Se including seed priming, base application, and foliar spray of Se fertilizers; 4) the possibility of using Se along with other methods to reduce multiple metal(loid) accumulation in crops; and 5) potential risks when Se is used to reduce metal(loid) accumulation in crops.
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Affiliation(s)
- RenWei Feng
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China.
| | - PingPing Zhao
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - YanMing Zhu
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - JiGang Yang
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - XinQi Wei
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Li Yang
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Hong Liu
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Christopher Rensing
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - YongZhen Ding
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China.
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21
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DalCorso G, Martini F, Fasani E, Manara A, Visioli G, Furini A. Enhancement of Zn tolerance and accumulation in plants mediated by the expression of Saccharomyces cerevisiae vacuolar transporter ZRC1. PLANTA 2021; 253:117. [PMID: 33956221 PMCID: PMC8102461 DOI: 10.1007/s00425-021-03634-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/24/2021] [Indexed: 05/30/2023]
Abstract
Transgenic Arabidopsis thaliana and Populus alba plants overexpressing the zinc transporter ScZRC1 in shoots exhibit Zn tolerance. Increased Zn concentrations were observed in shoots of P. alba, a species suitable for phytoremediation. Genetic engineering of plants for phytoremediation is worth to consider if genes leading to heavy metal accumulation and tolerance are expressed in high biomass producing plants. The Saccharomyces cerevisiae ZRC1 gene encodes a zinc transporter which is primarily involved in the uptake of Zn into the vacuole. The ZRC1 gene was expressed in the model species A. thaliana and P. alba (cv. Villafranca). Both species were transformed with constructs carrying ScZRC1 under the control of either the CaMV35S promoter for constitutive expression or the active promoter region of the tobacco Rubisco small subunit (pRbcS) to limit the expression to the above-ground tissues. In hydroponic cultures, A. thaliana and poplar ScZRC1-expressing plants accumulated more Zn in vegetative tissues and were more tolerant than untransformed plants. No differences were found between plants carrying the CaMV35::ScZRC1 or pRbcS::ScZRC1 constructs. The higher Zn accumulation in transgenic plants was accompanied by an increased superoxide dismutase (SOD) activity, indicating the activation of defense mechanisms to prevent cellular damage. In the presence of cadmium in addition to Zn, plants did not show symptoms of metal toxicity, neither in hydroponic cultures nor in soil. Zn accumulation increased in shoots, while no differences were observed for Cd accumulation, in comparison to control plants. These data suggest that ectopic expression of ScZRC1 can increase the potential of poplar for the remediation of Zn-polluted soils, although further tests are required to assay its application in remediating multimetal polluted soils.
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Affiliation(s)
- Giovanni DalCorso
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Flavio Martini
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Elisa Fasani
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Anna Manara
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Giovanna Visioli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Antonella Furini
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy.
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22
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Deng F, Zeng F, Chen G, Feng X, Riaz A, Wu X, Gao W, Wu F, Holford P, Chen ZH. Metalloid hazards: From plant molecular evolution to mitigation strategies. JOURNAL OF HAZARDOUS MATERIALS 2021; 409:124495. [PMID: 33187800 DOI: 10.1016/j.jhazmat.2020.124495] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/22/2020] [Accepted: 11/03/2020] [Indexed: 05/25/2023]
Abstract
Metalloids such as boron and silicon are key elements for plant growth and crop productivity. However, toxic metalloids such as arsenic are increasing in the environment due to inputs from natural sources and human activities. These hazardous metalloids can cause serious health risks to humans and animals if they enter the food chain. Plants have developed highly regulated mechanisms to alleviate the toxicity of metalloids during their 500 million years of evolution. A better understanding the molecular mechanisms underlying the transport and detoxification of toxic metalloids in plants will shed light on developing mitigation strategies. Key transporters and regulatory proteins responsive to toxic metalloids have been identified through evolutionary and molecular analyses. Moreover, knowledge of the regulatory proteins and their pathways can be used in the breeding of crops with lower accumulation of metalloids. These findings can also assist phytoremediation by the exploration of plants such as fern species that hyperaccumulate metalloids from soils and water, and can be used to engineer plants with elevated uptake and storage capacity of toxic metalloids. In summary, there are solutions to remediate contamination due to toxic metalloids by combining the research advances and industrial technologies with agricultural and environmental practices.
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Affiliation(s)
- Fenglin Deng
- Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China
| | - Fanrong Zeng
- Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China; College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Guang Chen
- Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China; College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Xue Feng
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Adeel Riaz
- Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China
| | - Xiaojian Wu
- Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China
| | - Wei Gao
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng, China
| | - Feibo Wu
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Paul Holford
- School of Science, Western Sydney University, Penrith, NSW, Australia
| | - Zhong-Hua Chen
- School of Science, Western Sydney University, Penrith, NSW, Australia; Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.
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Brazaitytė A, Miliauskienė J, Vaštakaitė-Kairienė V, Sutulienė R, Laužikė K, Duchovskis P, Małek S. Effect of Different Ratios of Blue and Red LED Light on Brassicaceae Microgreens under a Controlled Environment. PLANTS 2021; 10:plants10040801. [PMID: 33921895 PMCID: PMC8073284 DOI: 10.3390/plants10040801] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 11/24/2022]
Abstract
The consumption of microgreens has increased due to their having higher levels of bioactive compounds and mineral nutrients than mature plants. The lighting conditions during the cultivation of microgreens, if optimally selected, can have a positive effect by further increasing their nutritional value. Thus, our study aimed to determine the changes in mineral nutrients contents of Brassicaceae microgreens depending on different blue–red (B:R) light ratios in light-emitting diode (LED) lighting and to evaluate their growth and nutritional value according to different indexes. Experiments were performed in controlled environment growth chambers at IH LRCAF, 2020. Microgreens of mustard (Brassica juncea ‘Red Lace’) and kale (Brassica napus ‘Red Russian’) were grown hydroponically under different B:R light ratios: 0%B:100%R, 10%B:90%R, 25%B:75%R, 50%B:50%R, 75%B:25%R, and 100%B:0%R. A 220 μmol m−2 s−1 total photon flux density (TPFD), 18 h photoperiod, 21/17 ± 2 °C temperature and 60% ± 5% relative humidity in the growth chamber were maintained during cultivation. We observed that an increasing percentage of blue light in the LED illumination spectrum during growth was associated with reduced elongation in the microgreens of both species and had a positive effect on the accumulation of mostly macro- and micronutrients. However, different B:R light ratios indicate a species-dependent response to changes in growth parameters such as leaf area, fresh and dry mass, and optical leaf indexes such as for chlorophyll, flavonol, anthocyanin, and carotenoid reflectance.
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Affiliation(s)
- Aušra Brazaitytė
- Lithuanian Research Centre for Agriculture and Forestry, Institute of Horticulture, Kaunas str. 30, LT-54333 Babtai, Lithuania; (J.M.); (V.V.-K.); (R.S.); (K.L.); (P.D.)
- Correspondence:
| | - Jurga Miliauskienė
- Lithuanian Research Centre for Agriculture and Forestry, Institute of Horticulture, Kaunas str. 30, LT-54333 Babtai, Lithuania; (J.M.); (V.V.-K.); (R.S.); (K.L.); (P.D.)
| | - Viktorija Vaštakaitė-Kairienė
- Lithuanian Research Centre for Agriculture and Forestry, Institute of Horticulture, Kaunas str. 30, LT-54333 Babtai, Lithuania; (J.M.); (V.V.-K.); (R.S.); (K.L.); (P.D.)
| | - Rūta Sutulienė
- Lithuanian Research Centre for Agriculture and Forestry, Institute of Horticulture, Kaunas str. 30, LT-54333 Babtai, Lithuania; (J.M.); (V.V.-K.); (R.S.); (K.L.); (P.D.)
| | - Kristina Laužikė
- Lithuanian Research Centre for Agriculture and Forestry, Institute of Horticulture, Kaunas str. 30, LT-54333 Babtai, Lithuania; (J.M.); (V.V.-K.); (R.S.); (K.L.); (P.D.)
| | - Pavelas Duchovskis
- Lithuanian Research Centre for Agriculture and Forestry, Institute of Horticulture, Kaunas str. 30, LT-54333 Babtai, Lithuania; (J.M.); (V.V.-K.); (R.S.); (K.L.); (P.D.)
| | - Stanisław Małek
- Department of Ecology and Silviculture, Faculty of Forestry, University of Agriculture in Krakow, 31-425 Krakow, Poland;
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24
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Zhou W, Duan Y, Zhang Y, Wang H, Huang D, Zhang M. Effects of foliar selenium application on growth and rhizospheric soil micro-ecological environment of Atractylodes macrocephala Koidz. SOUTH AFRICAN JOURNAL OF BOTANY : OFFICIAL JOURNAL OF THE SOUTH AFRICAN ASSOCIATION OF BOTANISTS = SUID-AFRIKAANSE TYDSKRIF VIR PLANTKUNDE : AMPTELIKE TYDSKRIF VAN DIE SUID-AFRIKAANSE GENOOTSKAP VAN PLANTKUNDIGES 2021; 137:98-109. [PMID: 33106718 PMCID: PMC7578779 DOI: 10.1016/j.sajb.2020.09.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 08/18/2020] [Accepted: 09/23/2020] [Indexed: 05/21/2023]
Abstract
Atractylodes macrocephala (A. macrocephala), a famous medicinal herb in China, is widely cultivated and consumed in China with various beneficial effects. Numerous studies have shown that selenium (Se) plays an important role in promoting plant growth, although Se has not been considered an essential element for higher plants. The objectives of this research were to determine the effects of foliar Se application (0, 2.5, 5.0, 10.0 and 20.0 mg m-2 Se in sodium selenite, sprayed monthly from May to August) on the growth and rhizospheric soil micro-ecological environment of A. macrocephala, and explore the possible mechanisms underlying plant response to foliar Se application through a field experiment. The results were: The foliar application of 5.0 mg m-2 Se significantly increased the survival rate of A. macrocephala compared to the control. The yield of A. macrocephala was increased when the Se level maintained belowed 10.0 mg m-2 but decreased when Se level reached 20.0 mg m-2. The Se content in the rhizome of A. macrocephala showed a significant positive correlation with the Se level, while the insect attack rate was significantly negatively correlated with the Se level. However, foliar Se application hardly affected the concentration of bioactive compound atractylenolide in the rhizome of A. macrocephala. Notably, the application of foliar Se changed the content of partial soil nutrients, microbial diversity and composition in the rhizosphere soil of A. macrocephala. Bacterial diversity was positively correlated with A. macrocephala growth whereas fungal diversity was negatively correlated, suggesting that microbial diversity in the rhizosphere soils is closely related to plant growth. Moreover, correlation analysis showed that available potassium, Burkholderia and Cupriavidus in rhizospheric soil might be critical factors for promoting the growth of A. macrocephala. Overall, the foliar application of Se at moderate concentration was beneficial for the growth of A. macrocephala, and 5.0-10.0 mg m-2 Se level was the optimum. Our findings revealed novel insights into the response of A. macrocephala to foliar Se application from plant growth, rhizospheric soil nutrient and microbial community composition .
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Affiliation(s)
- Wuxian Zhou
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi 445000, Hubei, China
| | - Yuanyuan Duan
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi 445000, Hubei, China
| | - Yajuan Zhang
- Enshi Tujia and Miao Autonomous Prefecture of Agricultural and Rural Bureau, Enshi, 445000, Hubei, China
| | - Hua Wang
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi 445000, Hubei, China
| | - Donghai Huang
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi 445000, Hubei, China
| | - Meide Zhang
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi 445000, Hubei, China
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25
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Favorito JE, Grossl PR, Davis TZ, Eick MJ, Hankes N. Soil-plant-animal relationships and geochemistry of selenium in the Western Phosphate Resource Area (United States): A review. CHEMOSPHERE 2021; 266:128959. [PMID: 33279237 DOI: 10.1016/j.chemosphere.2020.128959] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 06/12/2023]
Abstract
While naturally found in trace quantities, several regions throughout the world have been designated as "seleniferous" or containing an overabundance of the trace element, selenium (Se), in soil. In particular, portions of the Western Phosphate Resource Area (WPRA) of the United States are considered seleniferous, notably due to past phosphate mining reclamation practices that have promoted Se release and accumulation in soil from weathering overburden waste rock. Concern over Se soil contamination in this region has been attributed to its high levels (ranging from 2.7 to 435 mg Se kg-1 soil), bioavailability, and subsequent hyperaccumulation in vegetation at toxic concentrations (exceeding 10,000 mg Se kg-1 plant tissue). The Se hyperaccumulator, western aster (Symphyotrichum ascendens (Lindl.)), is responsible for the vast majority of acute selenium livestock poisonings and fatalities throughout the region. This inherent bioavailability is largely controlled by soil redox chemistry and sorptive processes. The purpose of this review is to integrate information related to the unique site history of the WPRA from onset mining to current Se problems. This review will provide current details and connection of WPRA mining geology, soil Se geochemistry, plant hyperaccumulation, and related livestock fatalities. Soil remediation strategies will also be discussed along with their applicability and viability in this particular anthropogenically-influenced seleniferous region.
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Affiliation(s)
- Jessica E Favorito
- Environmental Science Program, 101 Vera King Farris Dr., Stockton University, Galloway, NJ, 08205, USA.
| | - Paul R Grossl
- Department of Plants, Soils, and Climate, 4820 Old Main Hill, Utah State University, Logan, UT, 84322, USA.
| | - Thomas Zane Davis
- USDA-ARS Poisonous Plant Research, 1150 East 1400 North, Logan, UT, 84341, USA.
| | - Matthew J Eick
- Department of Crop and Soil Environmental Sciences, 185 Ag Quad Ln, 237 Smyth Hall, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA.
| | - Nathan Hankes
- Department of Plants, Soils, and Climate, 4820 Old Main Hill, Utah State University, Logan, UT, 84322, USA.
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26
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Gupta PK, Balyan HS, Sharma S, Kumar R. Biofortification and bioavailability of Zn, Fe and Se in wheat: present status and future prospects. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2021; 134:1-35. [PMID: 33136168 DOI: 10.1007/s00122-020-03709-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 10/13/2020] [Indexed: 05/02/2023]
Abstract
Knowledge of genetic variation, genetics, physiology/molecular basis and breeding (including biotechnological approaches) for biofortification and bioavailability for Zn, Fe and Se will help in developing nutritionally improved wheat. Biofortification of wheat cultivars for micronutrients is a priority research area for wheat geneticists and breeders. It is known that during breeding of wheat cultivars for productivity and quality, a loss of grain micronutrient contents occurred, leading to decline in nutritional quality of wheat grain. Keeping this in view, major efforts have been made during the last two decades for achieving biofortification and bioavailability of wheat grain for micronutrients including Zn, Fe and Se. The studies conducted so far included evaluation of gene pools for contents of not only grain micronutrients as above, but also for phytic acid (PA) or phytate and phytase, so that, while breeding for the micronutrients, bioavailability is also improved. For this purpose, QTL interval mapping and GWAS were carried out to identify QTLs/genes and associated markers that were subsequently used for marker-assisted selection (MAS) during breeding for biofortification. Studies have also been conducted to understand the physiology and molecular basis of biofortification, which also allowed identification of genes for uptake, transport and storage of micronutrients. Transgenics using transgenes have also been produced. The breeding efforts led to the development of at least a dozen cultivars with improved contents of grain micronutrients, although land area occupied by these biofortified cultivars is still marginal. In this review, the available information on different aspects of biofortification and bioavailability of micronutrients including Zn, Fe and Se in wheat has been reviewed for the benefit of those, who plan to start work or already conducting research in this area.
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Affiliation(s)
- P K Gupta
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, U.P, 250004, India.
| | - H S Balyan
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, U.P, 250004, India
| | - Shailendra Sharma
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, U.P, 250004, India
| | - Rahul Kumar
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, U.P, 250004, India
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27
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Bernal M, Krämer U. Involvement of Arabidopsis Multi-Copper Oxidase-Encoding LACCASE12 in Root-to-Shoot Iron Partitioning: A Novel Example of Copper-Iron Crosstalk. FRONTIERS IN PLANT SCIENCE 2021; 12:688318. [PMID: 34707625 PMCID: PMC8544784 DOI: 10.3389/fpls.2021.688318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 08/23/2021] [Indexed: 05/17/2023]
Abstract
Numerous central biological processes depend on the participation of the essential elements iron (Fe) or copper (Cu), including photosynthesis, respiration, cell wall remodeling and oxidative stress protection. Yet, both Fe and Cu metal cations can become toxic when accumulated in excess. Because of the potent ligand-binding and redox chemistries of these metals, there is a need for the tight and combined homeostatic control of their uptake and distribution. Several known examples pinpoint an inter-dependence of Fe and Cu homeostasis in eukaryotes, mostly in green algae, yeast and mammals, but this is less well understood in multicellular plants to date. In Arabidopsis, Cu deficiency causes secondary Fe deficiency, and this is associated with reduced in vitro ferroxidase activity and decreased root-to-shoot Fe translocation. Here we summarize the current knowledge of the cross-talk between Cu and Fe homeostasis and present a partial characterization of LACCASE12 (LAC12) that encodes a member of the multicopper oxidase (MCO) protein family in Arabidopsis. LAC12 transcript levels increase under Fe deficiency. The phenotypic characterization of two mutants carrying T-DNA insertions suggests a role of LAC12 in root-to-shoot Fe partitioning and in maintaining growth on Fe-deficient substrates. A molecular understanding of the complex interactions between Fe and Cu will be important for combating Fe deficiency in crops and for advancing biofortification approaches.
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Affiliation(s)
- María Bernal
- Department of Molecular Genetics and Physiology of Plants, Faculty of Biology and Biotechnology, Ruhr University Bochum, Bochum, Germany
- Department of Plant Nutrition, Estación Experimental de Aula Dei-CSIC, Zaragoza, Spain
- *Correspondence: María Bernal,
| | - Ute Krämer
- Department of Molecular Genetics and Physiology of Plants, Faculty of Biology and Biotechnology, Ruhr University Bochum, Bochum, Germany
- Ute Krämer,
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28
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Marques AC, Lidon FC, Coelho ARF, Pessoa CC, Luís IC, Scotti-Campos P, Simões M, Almeida AS, Legoinha P, Pessoa MF, Galhano C, Guerra MAM, Leitão RG, Ramalho JC, Semedo JMN, Bagulho A, Moreira J, Rodrigues AP, Marques P, Silva C, Ribeiro-Barros A, Silva MJ, Silva MM, Oliveira K, Ferreira D, Pais IP, Reboredo FH. Quantification and Tissue Localization of Selenium in Rice ( Oryza sativa L., Poaceae) Grains: A Perspective of Agronomic Biofortification. PLANTS 2020; 9:plants9121670. [PMID: 33260543 PMCID: PMC7760205 DOI: 10.3390/plants9121670] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 02/06/2023]
Abstract
In worldwide production, rice is the second-most-grown crop. It is considered a staple food for many populations and, if naturally enriched in Se, has a huge potential to reduce nutrient deficiencies in foodstuff for human consumption. This study aimed to develop an agronomic itinerary for Se biofortification of Oryza sativa L. (Poaceae) and assess potential physicochemical deviations. Trials were implemented in rice paddy field with known soil and water characteristics and two genotypes resulting from genetic breeding (OP1505 and OP1509) were selected for evaluation. Plants were sprayed at booting, anthesis and milky grain phases with two different foliar fertilizers (sodium selenate and sodium selenite) at different concentrations (25, 50, 75 and 100 g Se·ha−1). After grain harvesting, the application of selenate showed 4.9–7.1 fold increases, whereas selenite increased 5.9–8.4-fold in OP1509 and OP1505, respectively. In brown grain, it was found that in the highest treatment selenate or selenite triggered much higher Se accumulation in OP1505 relatively to OP1509, and that no relevant variation was found with selenate or selenite spraying in each genotype. Total protein increased exponentially in OP1505 genotype when selenite was applied, and higher dosage of Se also increased grain weight and total protein content. It was concluded that, through agronomic biofortification, rice grain can be enriched with Se without impairing its quality, thus highlighting its value in general for the industry and consumers with special needs.
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Affiliation(s)
- Ana Coelho Marques
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (C.C.P.); (I.C.L.); (M.S.); (P.L.); (M.F.P.); (C.G.); (D.F.); (F.H.R.)
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
- Correspondence:
| | - Fernando C. Lidon
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (C.C.P.); (I.C.L.); (M.S.); (P.L.); (M.F.P.); (C.G.); (D.F.); (F.H.R.)
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
| | - Ana Rita F. Coelho
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (C.C.P.); (I.C.L.); (M.S.); (P.L.); (M.F.P.); (C.G.); (D.F.); (F.H.R.)
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
| | - Cláudia Campos Pessoa
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (C.C.P.); (I.C.L.); (M.S.); (P.L.); (M.F.P.); (C.G.); (D.F.); (F.H.R.)
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
| | - Inês Carmo Luís
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (C.C.P.); (I.C.L.); (M.S.); (P.L.); (M.F.P.); (C.G.); (D.F.); (F.H.R.)
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
| | - Paula Scotti-Campos
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
- Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal;
| | - Manuela Simões
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (C.C.P.); (I.C.L.); (M.S.); (P.L.); (M.F.P.); (C.G.); (D.F.); (F.H.R.)
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
| | - Ana Sofia Almeida
- Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal;
| | - Paulo Legoinha
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (C.C.P.); (I.C.L.); (M.S.); (P.L.); (M.F.P.); (C.G.); (D.F.); (F.H.R.)
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
| | - Maria Fernanda Pessoa
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (C.C.P.); (I.C.L.); (M.S.); (P.L.); (M.F.P.); (C.G.); (D.F.); (F.H.R.)
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
| | - Carlos Galhano
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (C.C.P.); (I.C.L.); (M.S.); (P.L.); (M.F.P.); (C.G.); (D.F.); (F.H.R.)
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
| | - Mauro A. M. Guerra
- LIBPhys, Physics Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (M.A.M.G.); (R.G.L.)
| | - Roberta G. Leitão
- LIBPhys, Physics Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (M.A.M.G.); (R.G.L.)
| | - José C. Ramalho
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
- PlantStress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, 1349-017 Lisboa, Portugal;
| | - José Manuel N. Semedo
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
- Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal;
| | - Ana Bagulho
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
- Instituto Nacional de Investigação Agrária e Veterinária, I. P. (INIAV), Estrada de Gil Vaz 6, 7351-901 Elvas, Portugal
| | - José Moreira
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
- Instituto Nacional de Investigação Agrária e Veterinária, I. P. (INIAV), Estrada de Gil Vaz 6, 7351-901 Elvas, Portugal
| | - Ana Paula Rodrigues
- PlantStress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, 1349-017 Lisboa, Portugal;
| | - Paula Marques
- Centro Operativo e Tecnológico do Arroz (COTARROZ), 2120-014 Salvaterra de Magos, Portugal; (P.M.); (C.S.)
| | - Cátia Silva
- Centro Operativo e Tecnológico do Arroz (COTARROZ), 2120-014 Salvaterra de Magos, Portugal; (P.M.); (C.S.)
| | - Ana Ribeiro-Barros
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
- PlantStress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, 1349-017 Lisboa, Portugal;
| | - Maria José Silva
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
- PlantStress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, 1349-017 Lisboa, Portugal;
| | - Maria Manuela Silva
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
- ESEAG-COFAC, Avenida do Campo Grande 376, 1749-024 Lisboa, Portugal
| | - Karliana Oliveira
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
- Instituto Politécnico de Beja (IPBeja), 7800-295 Beja, Portugal
| | - David Ferreira
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (C.C.P.); (I.C.L.); (M.S.); (P.L.); (M.F.P.); (C.G.); (D.F.); (F.H.R.)
| | - Isabel P. Pais
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
- Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal;
| | - Fernando Henrique Reboredo
- Earth Sciences Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (C.C.P.); (I.C.L.); (M.S.); (P.L.); (M.F.P.); (C.G.); (D.F.); (F.H.R.)
- GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal; (P.S.-C.); (J.C.R.); (J.M.N.S.); (A.B.); (J.M.); (A.R.-B.); (M.J.S.); (M.M.S.); (K.O.); (I.P.P.)
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QTL mapping and candidate gene analysis of cadmium accumulation in polished rice by genome-wide association study. Sci Rep 2020; 10:11791. [PMID: 32678216 PMCID: PMC7366680 DOI: 10.1038/s41598-020-68742-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 06/26/2020] [Indexed: 11/09/2022] Open
Abstract
Cadmium (Cd) accumulation in rice is a serious threat to food safety and human health. Breeding rice varieties with low Cd accumulation is one of the most effective approaches to reducing health risks from Cd-polluted rice. However, the genetic basis of Cd accumulation in grains, especially in indica rice varieties, has not been fully elucidated. The evaluation of Cd-accumulation capacity was conducted among 338 diverse rice accessions grown in Cd-contaminated soils with different Cd contents. Thirteen rice lines with relatively low Cd accumulation, including six indica rice lines, were identified. Then, 35 QTLs significantly associated with Cd accumulation were identified through sequencing-based SNP discovery and a genome-wide association study (GWAS) in the two experimental years, and only qCd8-1 was detected in both years. Among of them, nine QTLs were co-localized with identified genes or QTLs. A novel QTL, qCd1-3, with the lowest P value was selected for further LD decay analysis and candidate gene prediction. We found differential expression of OsABCB24 between high-Cd-accumulative and low-Cd-accumulative accessions, suggesting it may be a candidate gene for qCd1-3 associated with low Cd accumulation. These results may be helpful for further exploiting novel functional genes related to Cd accumulation and developing rice variety with low Cd accumulation through marker-assisted breeding.
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Lu M, Cao X, Pan J, Gurajala HK, He Z, Yang X, Khan MB. Genotypic variations in zinc accumulation and bioaccessibility among wheat (Triticum aestivum L.) genotypes under two different field conditions. J Cereal Sci 2020. [DOI: 10.1016/j.jcs.2020.102953] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Comparative Efficacy of Zn Supplement and Zinc Oxide Nanoparticles Over the Seed Germination of Lentil and Chick Pea. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2020. [DOI: 10.22207/jpam.14.1.69] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Gopi K, Jinal HN, Prittesh P, Kartik VP, Amaresan N. Effect of copper-resistant Stenotrophomonas maltophilia on maize ( Zea mays) growth, physiological properties, and copper accumulation: potential for phytoremediation into biofortification. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 22:662-668. [PMID: 32062978 DOI: 10.1080/15226514.2019.1707161] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, Cu-tolerant PGP bacteria were isolated from the contaminated soils of Tapi (Surat, Gujarat, India). From a set of 118 bacteria isolated from the contaminated soil, the isolate RBTS7 was found to be efficient in tolerating 0.3 g (w/v) Cu. The isolate was identified as Stenotrophomonas maltophilia, based on biochemical and 16S rRNA gene sequencing. Further, the isolate was also found to produce indole acetic acid (140 µg/ml) and siderophore, and solubilize potassium. Inoculation study was carried out in the presence and absence of Cu in the greenhouse. The results revealed that S. maltophilia enhanced plant growth and biomasses compared to control. In addition to plant growth attributes, the isolate also enhanced chlorophyll a and b (434.1 and 496.7%) contents and antioxidant properties such as proline (168.2%), total phenolic compounds (33.5%), and ascorbic acid oxidase (62.3%) compared to control with Cu and without Cu. Inoculation of S. maltophilia + Cu enhanced the uptake of Cu in maize root (77.4%) and stem (112.0%) compared to Cu-stressed control. The results clearly indicated the inoculation of S. maltophilia reduced the toxicity of Cu and in turn enhanced the plant growth and mobilization of Cu to the plant parts.
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Affiliation(s)
- Kachhadiya Gopi
- C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Surat, India
| | - Hardik Naik Jinal
- C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Surat, India
| | - Patel Prittesh
- C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Surat, India
| | | | - Natarajan Amaresan
- C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Surat, India
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Schiavon M, Nardi S, dalla Vecchia F, Ertani A. Selenium biofortification in the 21 st century: status and challenges for healthy human nutrition. PLANT AND SOIL 2020; 453:245-270. [PMID: 32836404 PMCID: PMC7363690 DOI: 10.1007/s11104-020-04635-9] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/06/2020] [Indexed: 05/04/2023]
Abstract
BACKGROUND Selenium (Se) is an essential element for mammals and its deficiency in the diet is a global problem. Plants accumulate Se and thus represent a major source of Se to consumers. Agronomic biofortification intends to enrich crops with Se in order to secure its adequate supply by people. SCOPE The goal of this review is to report the present knowledge of the distribution and processes of Se in soil and at the plant-soil interface, and of Se behaviour inside the plant in terms of biofortification. It aims to unravel the Se metabolic pathways that affect the nutritional value of edible plant products, various Se biofortification strategies in challenging environments, as well as the impact of Se-enriched food on human health. CONCLUSIONS Agronomic biofortification and breeding are prevalent strategies for battling Se deficiency. Future research addresses nanosized Se biofortification, crop enrichment with multiple micronutrients, microbial-integrated agronomic biofortification, and optimization of Se biofortification in adverse conditions. Biofortified food of superior nutritional quality may be created, enriched with healthy Se-compounds, as well as several other valuable phytochemicals. Whether such a food source might be used as nutritional intervention for recently emerged coronavirus infections is a relevant question that deserves investigation.
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Affiliation(s)
- Michela Schiavon
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente (DAFNAE), Università di Padova, Viale dell’Università 16, 35020 Legnaro, PD Italy
| | - Serenella Nardi
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente (DAFNAE), Università di Padova, Viale dell’Università 16, 35020 Legnaro, PD Italy
| | | | - Andrea Ertani
- Dipartimento di Scienze Agrarie, Università di Torino, Via Leonardo da Vinci, 44, 10095 Grugliasco, TO Italy
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Combined biofortification of carrot with iodine and selenium. Food Chem 2019; 300:125202. [DOI: 10.1016/j.foodchem.2019.125202] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 07/15/2019] [Accepted: 07/16/2019] [Indexed: 11/21/2022]
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Aggregation, Sedimentation, and Dissolution of Copper Oxide Nanoparticles: Influence of Low-Molecular-Weight Organic Acids from Root Exudates. NANOMATERIALS 2019; 9:nano9060841. [PMID: 31159452 PMCID: PMC6630225 DOI: 10.3390/nano9060841] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/24/2019] [Accepted: 05/29/2019] [Indexed: 11/17/2022]
Abstract
The rhizosphere is an essential pathway for the uptake of metal-based nanoparticles (MNPs) by plant roots. However, the interaction between root exudates and MNPs is still unclear. In this study, we initially identified the major low-molecular-weight organic acids (LMWOAs) in the rice root exudates using hydroponics. Then, the individual LMWOAs were added to CuO nanoparticle suspensions to investigate their effects on the environmental behavior of the MNPs. The results showed that both the variety and the concentration of LMWOAs impacted the aggregation, sedimentation, and dissolution of CuO nanoparticles (NPs). Almost all LMWOAs except succinic acid inhibited the aggregation of CuO NPs by enhancing the electrostatic repulsive force between NPs. The presence of citric and oxalic acids rather than lactic acid greatly improved the stability of CuO NP suspensions, but other acids showed a low promoting and high inhibiting effect on NP sedimentation. Moreover, all the LMWOAs from root exudates facilitated the dissolution of CuO NPs with a positive dose-dependent correlation, especially formic acid. Notably, citric acid, as the most abundant LMWOAs in rice root exudates, largely determined the aggregation, sedimentation, and dissolution of CuO NPs. This study provides a better understanding on NP-plant interactions in the rhizosphere.
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Wiegmann M, Thomas WTB, Bull HJ, Flavell AJ, Zeyner A, Peiter E, Pillen K, Maurer A. "Wild barley serves as a source for biofortification of barley grains". PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 283:83-94. [PMID: 31128718 DOI: 10.1016/j.plantsci.2018.12.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 12/13/2018] [Accepted: 12/15/2018] [Indexed: 05/05/2023]
Abstract
The continuing growth of the human population creates an inevitable necessity for higher crop yields, which are mandatory for the supply with adequate amounts of food. However, increasing grain yield may lead to a reduction of grain quality, such as a decline in protein and mineral nutrient concentrations causing the so-called hidden hunger. To assess the interdependence between quantity and quality and to evaluate the biofortification potential of wild barley, we conducted field studies, examining the interplay between plant development, yield, and nutrient concentrations, using HEB-YIELD, a subset of the wild barley nested association mapping population HEB-25. A huge variation of nutrient concentration in grains was obtained, since we identified lines with a more than 50% higher grain protein, iron, and zinc concentration in comparison to the recurrent parent 'Barke'. We observed a negative relationship between grain yield and nutritional value in barley, indicated by predominantly negative correlations between yield and nutrient concentrations. Analyzing the genetic control of nutrient concentration in mature grains indicated that numerous genomic regions determine the final nutritional value of grains and wild alleles were frequently associated with higher nutrient concentrations. The targeted introgression of wild barley alleles may enable biofortification in future barley breeding.
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Affiliation(s)
- Mathias Wiegmann
- Martin Luther University Halle-Wittenberg (MLU), Institute of Agricultural and Nutritional Sciences, Chair of Plant Breeding, Betty-Heimann-Str. 3, 06120 Halle, Germany.
| | - William T B Thomas
- The James Hutton Institute (JHI), Invergowrie, Dundee DD2 5DA, Scotland, UK.
| | - Hazel J Bull
- The James Hutton Institute (JHI), Invergowrie, Dundee DD2 5DA, Scotland, UK.
| | - Andrew J Flavell
- University of Dundee at JHI, School of Life Sciences, Invergowrie, Dundee DD2 5DA, Scotland, UK.
| | - Annette Zeyner
- Martin Luther University Halle-Wittenberg (MLU), Institute of Agricultural and Nutritional Sciences, Chair of Animal Nutrition, Theodor-Lieser-Str. 11, 06120 Halle, Germany.
| | - Edgar Peiter
- Martin Luther University Halle-Wittenberg (MLU), Institute of Agricultural and Nutritional Sciences, Chair of Plant Nutrition, Betty-Heimann-Str. 3, 06120 Halle, Germany.
| | - Klaus Pillen
- Martin Luther University Halle-Wittenberg (MLU), Institute of Agricultural and Nutritional Sciences, Chair of Plant Breeding, Betty-Heimann-Str. 3, 06120 Halle, Germany.
| | - Andreas Maurer
- Martin Luther University Halle-Wittenberg (MLU), Institute of Agricultural and Nutritional Sciences, Chair of Plant Breeding, Betty-Heimann-Str. 3, 06120 Halle, Germany.
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Pilipović A, Zalesny RS, Rončević S, Nikolić N, Orlović S, Beljin J, Katanić M. Growth, physiology, and phytoextraction potential of poplar and willow established in soils amended with heavy-metal contaminated, dredged river sediments. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 239:352-365. [PMID: 30921754 DOI: 10.1016/j.jenvman.2019.03.072] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 02/02/2019] [Accepted: 03/16/2019] [Indexed: 06/09/2023]
Abstract
Phytotechnologies have been used worldwide to remediate and restore damaged ecosystems, especially those caused by industrial byproducts leaching into rivers and other waterways. The objective of this study was to test the growth, physiology, and phytoextraction potential of poplar and willow established in soils amended with heavy-metal contaminated, dredged river sediments from the Great Bačka Canal near Vrbas City, Serbia. The sediments were applied to greenhouse-grown trees of Populus deltoides Bartr. ex Marsh. clone 'Bora' and Salix viminalis L. clone 'SV068'. Individual pots with trees previously grown for two months were amended with 0, 0.5 and 1.0 kg of sediment containing 400 mg Cr kg-1, 295 mg Cu kg-1, 465 mg Zn kg-1, 124 mg Ni kg-1, 1.87 mg Cd kg-1, and 61 mg Pb kg-1. Following amendment, trees were grown for two seasons (i.e., 2014, 2015), with coppicing after the first season. In addition to growth parameters, physiological traits related to the photosynthesis and nitrogen metabolism were assessed during both growing seasons. At the end of the study, trees were harvested for biomass analysis and accumulation of heavy metals in tree tissues and soils. Application of sediment decreased aboveground biomass by 37.3% in 2014, but increased height (16.4%) and leaf area (19.2%) in 2015. Sediment application negatively impacted the content of pigments and nitrate reductase activity, causing them to decrease over time. Generally, the effect of treatments on growth was more pronounced in poplars, while willows had more pronounced physiological activity. Accumulation patterns were similar to previously-published results. In particular, Zn and Cd were mostly accumulated in leaves of both poplar and willow, which indicated successful phytoextraction. In contrast, other metals (e.g., Cr, Ni, Pb, Cu) were mostly phytostabilized in the roots. Differences in metal allocation between poplar and willow were recorded only for Cu, while other metals followed similar distribution patterns in both genera. Results of this study indicated that the composition of heavy metals in the sediments determined the mechanisms of the applied phytoremediation technique.
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Affiliation(s)
- Andrej Pilipović
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
| | - Ronald S Zalesny
- Institute for Applied Ecosystem Studies, Northern Research Station, USDA Forest Service, Rhinelander, WI, USA.
| | - Srđan Rončević
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Novi Sad, Serbia
| | - Nataša Nikolić
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Novi Sad, Serbia
| | - Saša Orlović
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
| | - Jelena Beljin
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Novi Sad, Serbia
| | - Marina Katanić
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
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Wang Q, Ye J, Wu Y, Luo S, Chen B, Ma L, Pan F, Feng Y, Yang X. Promotion of the root development and Zn uptake of Sedum alfredii was achieved by an endophytic bacterium Sasm05. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 172:97-104. [PMID: 30684757 DOI: 10.1016/j.ecoenv.2019.01.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 11/08/2018] [Accepted: 01/04/2019] [Indexed: 05/22/2023]
Abstract
Endophyte-assisted phytoremediation has gained increasing attention. However, the interacting mechanisms of endophytes and metal hyperaccumulators are still not clear. An endophytic bacterium Pseudomonas fluorescens Sasm05 inoculation promoted Sedum alfredii Hance rooting and root development, in which the specific root length (SRL) and average number of root tips (ART) increased to 2.09- and 3.35-fold, respectively. Sasm05 inoculation promoted plant growth, increased the chlorophyll content, and elevated Zn uptake of plant at excess Zn supply. At 200 μM Zn treatment level, Sasm05 inoculation increased plant biomass and the chlorophyll content by more than 40%, and root Zn content by 40%. Furthermore, Sasm05 inoculation upregulated the expression of the Zn transporter SaIRT1 to 3.43-fold in the roots, while another transporter SaNramp1 expression was increased to 38.66-fold in the roots and 7.53-fold in the shoots. Time course study showed the best effects of Sasm05 on plant biomass and the chlorophyll content were detected at 30 d, while for Zn content at 3 d. These results firstly provided molecular evidences of endophytic bacteria in facilitating host plant Zn uptake, which will absolutely benefit the understanding of interacting mechanisms between hyperaccumulators and their endophytes.
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Affiliation(s)
- Qiong Wang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jiayuan Ye
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yingjie Wu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Sha Luo
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Bao Chen
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Project Business Department, Jinjiang building, No. 111, Hushu south Road, Hangzhou city, Zhejiang province 310005, China
| | - Luyao Ma
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Fengshan Pan
- Hailiang Group Co., Ltd., Hangzhou 310058, China
| | - Ying Feng
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Xiaoe Yang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
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Nothstein AK, Eiche E, Riemann M, Nick P, Maier P, Tenspolde A, Neumann T. Coupling Langmuir with Michaelis-Menten-A practical alternative to estimate Se content in rice? PLoS One 2019; 14:e0214219. [PMID: 31002711 PMCID: PMC6474650 DOI: 10.1371/journal.pone.0214219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 03/10/2019] [Indexed: 11/18/2022] Open
Abstract
Selenium plays an important, but vastly neglected role in human nutrition with a narrow gap between dietary deficiency and toxicity. For a potential biofortification of food with Se, as well as for toxicity-risk assessment in sites contaminated by Se, modelling of local and global Se cycling is essential. As bioavailability of Se for rice plants depends on the speciation of Se and the resulting interactions with mineral surfaces as well as the interaction with Se uptake mechanisms in plants, resulting plant Se content is complex to model. Unfortunately, simple experimental models to estimate Se uptake into plants from substrates have been lacking. Therefore, a mass balance of Se transfer between lithosphere (represented by kaolinite), hydrosphere (represented by a controlled nutrient solution), and biosphere (represented by rice plants) has been established. In a controlled, closed, lab-scale system, rice plants were grown hydroponically in nutrient solution supplemented with 0–10 000 μg L-1 Se of either selenate or selenite. Furthermore, in a series of batch experiments, adsorption and desorption were studied for selenate and selenite in competition with each of the major nutrient oxy-anions, nitrate, sulfate and phosphate. In a third step, the hydroponical plants experiments were coupled with sorption experiments to study synergy effects. These data were used to develop a mass balance fitting model of Se uptake and partitioning. Adsorption was well-described by Langmuir isotherms, despite competing anions, however, a certain percentage of Se always remained bio-unavailable to the plant. Uptake of selenate or selenite by transporters into the rice plant was fitted with the non-time differentiated Michaelis-Menten equation. Subsequent sequestration of Se to the shoot was better described using a substrate-inhibited variation of the Michaelis-Menten equation. These fitted parameters were then integrated into a mass balance model of Se transfer.
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Affiliation(s)
- Alexandra K. Nothstein
- Karlsruhe Institute of Technology (KIT), Institute for Safety and Environment (SUM), Eggenstein-Leopoldshafen, Baden-Württemberg, Germany
- * E-mail:
| | - Elisabeth Eiche
- Karlsruhe Institute of Technology (KIT), Institute of Applied Geosciences (AGW), Karlsruhe, Baden-Württemberg, Germany
| | - Michael Riemann
- Karlsruhe Institute of Technology (KIT), Molecular Cell Biology, Botanical Institute Karlsruhe, Karlsruhe, Baden-Württemberg, Germany
| | - Peter Nick
- Karlsruhe Institute of Technology (KIT), Molecular Cell Biology, Botanical Institute Karlsruhe, Karlsruhe, Baden-Württemberg, Germany
| | - Philipp Maier
- Karlsruhe Institute of Technology (KIT), Institute of Applied Geosciences (AGW), Karlsruhe, Baden-Württemberg, Germany
| | - Arne Tenspolde
- Karlsruhe Institute of Technology (KIT), Institute of Applied Geosciences (AGW), Karlsruhe, Baden-Württemberg, Germany
| | - Thomas Neumann
- Technical University of Berlin (TUB), Institute of Applied Geosciences, Berlin, Germany
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Ye X, Hu H, Li H, Xiong Q, Gao H. Combined nitrogen fertilizer and wheat straw increases the cadmium phytoextraction efficiency of Tagetes patula. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 170:210-217. [PMID: 30529915 DOI: 10.1016/j.ecoenv.2018.11.135] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 11/26/2018] [Accepted: 11/29/2018] [Indexed: 06/09/2023]
Abstract
The soil cadmium (Cd) availability and uptake by Tagetes patula grown in two soil types contaminated with Cd and amended with N fertilizer and wheat straw were studied in a pot-culture experiment. The results indicated that N fertilizer treatment (N) and N fertilizer plus straw treatment (NS) promoted T. patula growth, while straw treatment (S) decreased T. patula biomass relative to the control. NS and S treatments increased Cd mobility in the soil and facilitated its uptake by T. patula in Acidic Ferralsols (AF) and Calcaric Cambisols (CC), but the promotion effect was much greater in CC than in AF. The Cd concentrations in the Tagetes shoots in the S and NS treatments were 40% and 27% greater, respectively, than those in the control treatment for AF, and 111% and 80% greater, respectively, for CC. Decreases in soil pH and increases in dissoluble organic carbon concentration after adding N fertilizer and straw were associated with an increase in soil Cd availability and in Cd uptake by T. patula. The results indicate that the NS treatment can alter the soil microenvironment, increasing Cd bioavailability and thus facilitating Cd uptake by T. patula. This work highlights that the combined application of N fertilizer with straw may be a useful way to increase the phytoextraction efficiency of Cd-contaminated soil by the Cd-hyperaccumulator T. patula.
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Affiliation(s)
- Xinxin Ye
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Hongxiang Hu
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Hongying Li
- Institute of Soil and Fertilizer, Anhui Academy of Agricultural Sciences, Hefei 230031, China.
| | - Qizhong Xiong
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Hongjian Gao
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
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Rai PK, Lee SS, Zhang M, Tsang YF, Kim KH. Heavy metals in food crops: Health risks, fate, mechanisms, and management. ENVIRONMENT INTERNATIONAL 2019; 125:365-385. [PMID: 30743144 DOI: 10.1016/j.envint.2019.01.067] [Citation(s) in RCA: 681] [Impact Index Per Article: 136.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/25/2019] [Accepted: 01/26/2019] [Indexed: 05/20/2023]
Abstract
Food security is a high-priority issue for sustainable global development both quantitatively and qualitatively. In recent decades, adverse effects of unexpected contaminants on crop quality have threatened both food security and human health. Heavy metals and metalloids (e.g., Hg, As, Pb, Cd, and Cr) can disturb human metabolomics, contributing to morbidity and even mortality. Therefore, this review focuses on and describes heavy metal contamination in soil-food crop subsystems with respect to human health risks. It also explores the possible geographical pathways of heavy metals in such subsystems. In-depth discussion is further offered on physiological/molecular translocation mechanisms involved in the uptake of metallic contaminants inside food crops. Finally, management strategies are proposed to regain sustainability in soil-food subsystems.
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Affiliation(s)
- Prabhat Kumar Rai
- Department of Environmental Science, Mizoram University, Aizawl 796004, India
| | - Sang Soo Lee
- Department of Environmental Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Ming Zhang
- Department of Environmental Engineering, China Jiliang University, Hangzhou 310018, China
| | - Yiu Fai Tsang
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, New Territories, Hong Kong
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea.
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Smoleń S, Kowalska I, Kováčik P, Halka M, Sady W. Biofortification of Six Varieties of Lettuce ( Lactuca sativa L.) With Iodine and Selenium in Combination With the Application of Salicylic Acid. FRONTIERS IN PLANT SCIENCE 2019; 10:143. [PMID: 30873185 PMCID: PMC6401620 DOI: 10.3389/fpls.2019.00143] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Accepted: 01/28/2019] [Indexed: 05/21/2023]
Abstract
The agrotechnical methods of biofortification of plants, i.e., enriching them in iodine (I) and selenium (Se) could be effective methods to enrich food products in these elements. The advantage of agrotechnical methods of biofortification is the incorporation of elements in organic compounds in plants; therefore, they have better health-promoting properties than pure technical salts. Two-year studies were conducted in a greenhouse with hydroponic cultivation of three botanical varieties of lettuce in an NFT (nutrient film technique) system: two cultivars butterhead lettuces (abb. BUTL) 'Cud Voorburgu' and 'Zimująca,' two cultivars iceberg lettuces (abb. ICEL) 'Maugli' and 'Królowa lata' (all this four cultivars are classified as Lactuca sativa L. var. capitata) as well two cultivars Lactuca sativa L. var. crispa L. cultivars (abb. REDL) 'Lollo rossa' and 'Redin' having little red leaves. The study included the application of I (as KIO3), Se (as Na2SeO3), and SA into the nutrient solution. The tested treatments were as follows: (1) control, (2) I+Se, (3) I+Se+0.1 mg SA dm-3, (4) I+Se+1.0 mg SA dm-3, and (5) I+Se+10.0 mg SA dm-3. KIO3 was used at a dose of 5 mg I dm-3, while Na2SeO3 was 0.5 mg Se dm-3. Regardless of the kind of the applied compound, the highest biomass of heads was produced by the REDL 'Redin' variety. Furthermore, this variety, as the only one in six varieties tested, reacted with the decrease in yield to the application of I+Se and I+Se+three concentrations of SA. In the heads of all cultivars, the level of I accumulation was 10-30 times higher than of Se. The level of I accumulation formed the following order: REDL 'Lollo rossa' > REDL 'Redin' = BUTL 'Cud Voorburgu' > BUTL 'Zimująca' > ICEL 'Maugli' > ICEL 'Królowa lata'. The order of Se content in leaves was as follows: REDL 'Redin' = BUTL 'Cud Voorburgu' > REDL 'Lollo rossa' > ICEL 'Maugli' > BUTL 'Zimująca' > ICEL 'Królowa lata'. The obtained results indicate that the introduction of SA to the nutrient solutions in hydroponic systems may allow an improve the effectiveness of - biofortification.
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Affiliation(s)
- Sylwester Smoleń
- Unit of Plant Nutrition, Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Kraków, Poland
- *Correspondence: Sylwester Smoleń, ;
| | - Iwona Kowalska
- Unit of Plant Nutrition, Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Kraków, Poland
| | - Peter Kováčik
- Department of Agrochemistry and Plant Nutrition, Slovak University of Agriculture in Nitra, Nitra, Slovakia
| | - Mariya Halka
- Unit of Plant Nutrition, Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Kraków, Poland
| | - Włodzimierz Sady
- Unit of Plant Nutrition, Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Kraków, Poland
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Wu K, Li J, Luo J, Liu Y, Song Y, Liu N, Rafiq MT, Li T. Effects of elevated CO 2 and endophytic bacterium on photosynthetic characteristics and cadmium accumulation in Sedum alfredii. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 643:357-366. [PMID: 29940447 DOI: 10.1016/j.scitotenv.2018.06.131] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 06/10/2018] [Accepted: 06/11/2018] [Indexed: 06/08/2023]
Abstract
Elevated CO2 and use of endophytic microorganisms have been considered as efficient and novel ways to improve phytoextraction efficiency. However, the interactive effects of elevated CO2 and endophytes on hyperaccumulator is poorly understood. In this study, a hydroponics experiment was conducted to investigate the combined effect of elevated CO2 (eCO2) and inoculation with endophyte SaMR12 (ES) on the photosynthetic characteristics and cadmium (Cd) accumulation in hyperaccumulator Sedum alfredii. The results showed that eCO2 × ES interaction promoted the growth of S. alfredii, shoot and root biomass net increment were increased by 264.7 and 392.3%, respectively, as compared with plants grown in ambient CO2 (aCO2). The interaction of eCO2 and ES significantly (P < 0.05) increased chlorophyll content (53.2%), Pn (111.6%), Pnmax (59.8%), AQY (65.1%), and Lsp (28.8%), but reduced Gs, Tr, Rd, and Lcp. Increased photosynthetic efficiency was associated with higher activities of rubisco, Ca2+-ATPase, and Mg2+-ATPase, and linked with over-expression of two photosystem related genes (SaPsbS and SaLhcb2). PS II activities were significantly (P < 0.05) enhanced with Fv/Fm and Φ(II) increased by 12.3 and 13.0%, respectively, compared with plants grown in aCO2. In addition, the net uptake of Cd in the shoot and root tissue of S. alfredii grown in eCO2 × ES treatment was increased by 260.7 and 434.9%, respectively, due to increased expression of SaHMA2 and SaCAX2 Cd transporter genes. Our results suggest that eCO2 × ES can promote the growth of S. alfredii due to increased photosynthetic efficiency, and improve Cd accumulation and showed considerable potential of improving the phytoextraction ability of Cd by S. alfredii.
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Affiliation(s)
- Keren Wu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jinxing Li
- Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jipeng Luo
- Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yuankun Liu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yuchao Song
- Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Nanlin Liu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Muhammad Tariq Rafiq
- Department of Environmental Science International Islamic University Islamabad, Pakistan
| | - Tingqiang Li
- Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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Peng C, Chen S, Shen C, He M, Zhang Y, Ye J, Liu J, Shi J. Iron Plaque: A Barrier Layer to the Uptake and Translocation of Copper Oxide Nanoparticles by Rice Plants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:12244-12254. [PMID: 30351042 DOI: 10.1021/acs.est.8b02687] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The waterlogging environment generally results in the deposition of iron plaque on plant roots, which may impact the fate of metal-based nanoparticles. Here, we investigated the influence of iron plaque on the uptake, translocation, and transformation of copper oxide nanoparticles (CuO NPs) in rice plants. The results show that the presence of iron plaque dramatically reduced the Cu contents in roots and shoots by 89% and 78% of those without iron plaque under 100 mg/L CuO NP treatment. Meanwhile, the Cu accumulation in plants was negatively related to the amount of iron plaque. X-ray absorption near edge structure (XANES) analysis demonstrated lower percentage of CuO but higher proportion of Cu(I) in shoots exposed to CuO NPs with the formation of iron plaque. Furthermore, micro X-ray fluorescence (μ-XRF) combined with μ-XANES revealed that the iron plaque in the root epidermis and exodermis consisted of goethite and ferrihydrite, which hindered the uptake of CuO NPs by roots. However, a few CuO NPs were still absorbed by roots via root hairs or lateral roots, and further translocated to shoots. But eventually, more than 90% of total Cu(II) was reduced to Cu(I)-cysteine and Cu2O in leaf veins of rice plants with iron plaque.
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Affiliation(s)
- Cheng Peng
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering , Donghua University , Shanghai 201620 , China
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province , Zhejiang University , Hangzhou 310058 , China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092 , China
| | - Si Chen
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering , Donghua University , Shanghai 201620 , China
| | - Chensi Shen
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering , Donghua University , Shanghai 201620 , China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092 , China
| | - Miao He
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering , Donghua University , Shanghai 201620 , China
| | - Yunqi Zhang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering , Donghua University , Shanghai 201620 , China
| | - Jien Ye
- Department of Environmental Engineering, College of Environmental and Resource Sciences , Zhejiang University , Hangzhou 310058 , China
| | - Jianshe Liu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering , Donghua University , Shanghai 201620 , China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092 , China
| | - Jiyan Shi
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province , Zhejiang University , Hangzhou 310058 , China
- Department of Environmental Engineering, College of Environmental and Resource Sciences , Zhejiang University , Hangzhou 310058 , China
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Hummel M, Hallahan BF, Brychkova G, Ramirez-Villegas J, Guwela V, Chataika B, Curley E, McKeown PC, Morrison L, Talsma EF, Beebe S, Jarvis A, Chirwa R, Spillane C. Reduction in nutritional quality and growing area suitability of common bean under climate change induced drought stress in Africa. Sci Rep 2018; 8:16187. [PMID: 30385766 DOI: 10.1038/s441598-018-33952-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 09/27/2018] [Indexed: 05/21/2023] Open
Abstract
Climate change impacts on food security will involve negative impacts on crop yields, and potentially on the nutritional quality of staple crops. Common bean is the most important grain legume staple crop for human diets and nutrition worldwide. We demonstrate by crop modeling that the majority of current common bean growing areas in southeastern Africa will become unsuitable for bean cultivation by the year 2050. We further demonstrate reductions in yields of available common bean varieties in a field trial that is a climate analogue site for future predicted drought conditions. Little is known regarding the impact of climate change induced abiotic stresses on the nutritional quality of common beans. Our analysis of nutritional and antinutritional compounds reveals that iron levels in common bean grains are reduced under future climate-scenario relevant drought stress conditions. In contrast, the levels of protein, zinc, lead and phytic acid increase in the beans under such drought stress conditions. This indicates that under climate-change induced drought scenarios, future bean servings by 2050 will likely have lower nutritional quality, posing challenges for ongoing climate-proofing of bean production for yields, nutritional quality, human health, and food security.
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Affiliation(s)
- Marijke Hummel
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Brendan F Hallahan
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Galina Brychkova
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Julian Ramirez-Villegas
- International Center for Tropical Agriculture (CIAT), Km. 17 Recta Cali-Palmira A. A., 6713, Cali, Colombia
- CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), Cali, Colombia
| | - Veronica Guwela
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Bartholomew Chataika
- Pan African Bean Research Alliance (PABRA), International Center for Tropical Agriculture (CIAT), P.O. Box 158, Lilongwe, Malawi
| | - Edna Curley
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Peter C McKeown
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Liam Morrison
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Elise F Talsma
- International Center for Tropical Agriculture (CIAT), Km. 17 Recta Cali-Palmira A. A., 6713, Cali, Colombia
- CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), Cali, Colombia
- Division of Human Nutrition and Health, Wageningen University, P.O. Box 17 6700 AA, Wageningen, The Netherlands
| | - Steve Beebe
- International Center for Tropical Agriculture (CIAT), Km. 17 Recta Cali-Palmira A. A., 6713, Cali, Colombia
- CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), Cali, Colombia
| | - Andy Jarvis
- International Center for Tropical Agriculture (CIAT), Km. 17 Recta Cali-Palmira A. A., 6713, Cali, Colombia
- CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), Cali, Colombia
| | - Rowland Chirwa
- Pan African Bean Research Alliance (PABRA), International Center for Tropical Agriculture (CIAT), P.O. Box 158, Lilongwe, Malawi
| | - Charles Spillane
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland.
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Hummel M, Hallahan BF, Brychkova G, Ramirez-Villegas J, Guwela V, Chataika B, Curley E, McKeown PC, Morrison L, Talsma EF, Beebe S, Jarvis A, Chirwa R, Spillane C. Reduction in nutritional quality and growing area suitability of common bean under climate change induced drought stress in Africa. Sci Rep 2018; 8:16187. [PMID: 30385766 PMCID: PMC6212502 DOI: 10.1038/s41598-018-33952-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 09/27/2018] [Indexed: 12/13/2022] Open
Abstract
Climate change impacts on food security will involve negative impacts on crop yields, and potentially on the nutritional quality of staple crops. Common bean is the most important grain legume staple crop for human diets and nutrition worldwide. We demonstrate by crop modeling that the majority of current common bean growing areas in southeastern Africa will become unsuitable for bean cultivation by the year 2050. We further demonstrate reductions in yields of available common bean varieties in a field trial that is a climate analogue site for future predicted drought conditions. Little is known regarding the impact of climate change induced abiotic stresses on the nutritional quality of common beans. Our analysis of nutritional and antinutritional compounds reveals that iron levels in common bean grains are reduced under future climate-scenario relevant drought stress conditions. In contrast, the levels of protein, zinc, lead and phytic acid increase in the beans under such drought stress conditions. This indicates that under climate-change induced drought scenarios, future bean servings by 2050 will likely have lower nutritional quality, posing challenges for ongoing climate-proofing of bean production for yields, nutritional quality, human health, and food security.
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Affiliation(s)
- Marijke Hummel
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Brendan F Hallahan
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Galina Brychkova
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Julian Ramirez-Villegas
- International Center for Tropical Agriculture (CIAT), Km. 17 Recta Cali-Palmira A. A., 6713, Cali, Colombia
- CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), Cali, Colombia
| | - Veronica Guwela
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Bartholomew Chataika
- Pan African Bean Research Alliance (PABRA), International Center for Tropical Agriculture (CIAT), P.O. Box 158, Lilongwe, Malawi
| | - Edna Curley
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Peter C McKeown
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Liam Morrison
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland
| | - Elise F Talsma
- International Center for Tropical Agriculture (CIAT), Km. 17 Recta Cali-Palmira A. A., 6713, Cali, Colombia
- CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), Cali, Colombia
- Division of Human Nutrition and Health, Wageningen University, P.O. Box 17 6700 AA, Wageningen, The Netherlands
| | - Steve Beebe
- International Center for Tropical Agriculture (CIAT), Km. 17 Recta Cali-Palmira A. A., 6713, Cali, Colombia
- CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), Cali, Colombia
| | - Andy Jarvis
- International Center for Tropical Agriculture (CIAT), Km. 17 Recta Cali-Palmira A. A., 6713, Cali, Colombia
- CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), Cali, Colombia
| | - Rowland Chirwa
- Pan African Bean Research Alliance (PABRA), International Center for Tropical Agriculture (CIAT), P.O. Box 158, Lilongwe, Malawi
| | - Charles Spillane
- Plant & AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland Galway, University Road, Galway, H91 REW4, Ireland.
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Sazawal S, Dhingra U, Dhingra P, Dutta A, Deb S, Kumar J, Devi P, Prakash A. Efficacy of high zinc biofortified wheat in improvement of micronutrient status, and prevention of morbidity among preschool children and women - a double masked, randomized, controlled trial. Nutr J 2018; 17:86. [PMID: 30219062 PMCID: PMC6139156 DOI: 10.1186/s12937-018-0391-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 08/23/2018] [Indexed: 12/04/2022] Open
Abstract
Background Biofortification of staple food crops with zinc (Zn) can be one of the cost-effective and sustainable strategies to combat zinc deficiency and prevent morbidity among the target population. Agronomic approaches such as application of Zn fertilizers to soil and/or foliar spray seem to be a practical tool for Zn biofortification of wheat. However, there is a need to evaluate its efficacy from randomized controlled trials. This study aimed to evaluate the efficacy of zinc biofortified wheat flour on zinc status and its impact on morbidity among children aged 4–6 years and non-pregnant non lactating woman of child bearing age (WCBA) in Delhi, India. Methods In a community based, double-masked randomized controlled trial, 6005 participants (WCBA and child pairs) were enrolled and randomly allocated to receive either high zinc biofortified wheat flour (HZn, 30 ppm zinc daily) or low zinc biofortified wheat flour (LZn, 20 ppm zinc daily) for 6 months (WCBA @ 360 g/day and children @ 120 g/day). Baseline and endline blood samples were obtained for assessing hematological markers; zinc status and data on compliance and morbidity were collected. Results Compliance rates were high; ~ 88% of the WCBAs in both the groups consumed 50% or more of recommended amount of biofortfied wheat flour during the follow up. Similarly 86.9% children in HZn and 87.5% in LZn consumed 50% or more of recommended wheat flour intake. There was no significant difference in mean zinc levels between the groups at end study. This observation might be due to a marginal difference in zinc content (10 ppm) between the HZn and LZn wheat flour, and a short intervention period. However a positive impact of bio-fortification on self-reported morbidity was observed. Compared to children in LZn group, children in HZn group had 17% (95% CI: 6 to 31%, p = 0.05) and 40% (95% CI: 16 to 57%; p = 0.0019) reduction in days with pneumonia and vomiting respectively. WCBA in the HZn group also showed a statistically significant 9% fewer days with fever compared to LZn group. Conclusions Biofortified wheat flour had a good compliance among children and WCBAs. Significant improvement on some of the self-reported morbidity indicators suggests that evaluating longer-term effects of biofortification with higher grain zinc content would be more appropriate. Trial registration http://ctri.nic.in/Clinicaltrials/, CTRI/2014/04/004527, Registered April 7, 2014. Electronic supplementary material The online version of this article (10.1186/s12937-018-0391-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sunil Sazawal
- Center for Public Health Kinetics, 214A, Vinoba Puri, Lajpat Nagar-II, New Delhi, 110024, India. .,Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. .,Department of Pediatrics, Subharti Medical College, Meerut, Uttar Pradesh, India.
| | - Usha Dhingra
- Center for Public Health Kinetics, 214A, Vinoba Puri, Lajpat Nagar-II, New Delhi, 110024, India
| | - Pratibha Dhingra
- Center for Public Health Kinetics, 214A, Vinoba Puri, Lajpat Nagar-II, New Delhi, 110024, India
| | - Arup Dutta
- Center for Public Health Kinetics, 214A, Vinoba Puri, Lajpat Nagar-II, New Delhi, 110024, India
| | - Saikat Deb
- Center for Public Health Kinetics, 214A, Vinoba Puri, Lajpat Nagar-II, New Delhi, 110024, India
| | - Jitendra Kumar
- Center for Public Health Kinetics, 214A, Vinoba Puri, Lajpat Nagar-II, New Delhi, 110024, India
| | - Prabhabati Devi
- Center for Public Health Kinetics, 214A, Vinoba Puri, Lajpat Nagar-II, New Delhi, 110024, India
| | - Ashish Prakash
- Department of Pediatrics, Subharti Medical College, Meerut, Uttar Pradesh, India
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Inheritance studies on grain iron and zinc concentration and agronomic traits in sorghum [Sorghum bicolor (L.) Moench]. J Cereal Sci 2018. [DOI: 10.1016/j.jcs.2018.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Chen B, Nayuki K, Kuga Y, Zhang X, Wu S, Ohtomo R. Uptake and Intraradical Immobilization of Cadmium by Arbuscular Mycorrhizal Fungi as Revealed by a Stable Isotope Tracer and Synchrotron Radiation μX-Ray Fluorescence Analysis. Microbes Environ 2018; 33:257-263. [PMID: 30122692 PMCID: PMC6167114 DOI: 10.1264/jsme2.me18010] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Arbuscular mycorrhizal (AM) fungi can improve plant tolerance to heavy metal contamination. This detoxification ability may largely depend on how AM fungi influence the uptake and distribution of metals in host plants. Two experiments were performed in order to gain insights into the mechanisms underlying cadmium (Cd) tolerance in mycorrhizal plants. Stable isotope Cd106 and compartmented pots were adopted to quantify the contribution of the AM fungus, Rhizophagus irregularis, to the uptake of Cd by Lotus japonicus. Moreover, synchrotron radiation μX-ray fluorescence (SR-μXRF) was applied to localize Cd in the mycorrhizal roots at the sub-cellular level. The results obtained indicated that mycorrhizal colonization markedly enhanced Cd immobilization in plant roots. Less Cd was partitioned to plant shoots when only hyphae had access to Cd in the hyphal compartment than when roots also had direct access to the Cd pool. SR-μXRF imaging indicated that Cd absorbed by extraradical hyphae was translocated into intraradical fungal structures, in which arbuscules accumulated large amounts of Cd; however, plant cells without fungal structures and plant cell walls contained negligible amounts of Cd. The present results provide direct evidence for the intraradical immobilization of Cd absorbed by AM fungi, which may largely contribute to the enhanced tolerance of plants to Cd. Therefore, AM fungi may play a role in the phytostabilization of Cd-contaminated soil.
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Affiliation(s)
- Baodong Chen
- NARO Institute of Livestock and Grassland Science.,State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences.,Jilin Provincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University
| | - Keiichiro Nayuki
- Faculty of Agriculture, Shinshu University.,Graduate School of Integrated Arts and Sciences, Hiroshima University
| | - Yukari Kuga
- Graduate School of Integrated Arts and Sciences, Hiroshima University
| | - Xin Zhang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences
| | - Songlin Wu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences
| | - Ryo Ohtomo
- NARO Institute of Livestock and Grassland Science
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Ascorbate-Glutathione Cycle and Ultrastructural Analyses of Two Kenaf Cultivars ( Hibiscus cannabinus L.) under Chromium Stress. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15071467. [PMID: 29997377 PMCID: PMC6068517 DOI: 10.3390/ijerph15071467] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/07/2018] [Accepted: 07/07/2018] [Indexed: 11/20/2022]
Abstract
Kenaf (Hibiscus cannabinus L.) with high tolerance to chromium (Cr) can be used in the phytoremediation of chromium-contaminated soil. However, the mechanisms of chromium accumulation and tolerance in kenaf are still unclear. A hydroponic experiment was taken to screen two kenaf cultivars with Cr tolerance among nine kenaf cultivars via a tolerance index. This is first time the ascorbate-glutathione (AsA-GSH) cycle and chloroplast structural changes involved in Cr tolerance of two kenaf cultivars are explored. This study indicated that enhancement of chromium concentrations reduced nine kenaf growth rates and plant biomass. In addition, in all the nine cultivars, the roots had higher Cr accumulation than the shoots. Cr-tolerant cultivar Zhe70-3 with the maximum tolerant index had the significantly higher enzymatic activities of ascorbate peroxidase (APX), glutathione reductase (GR), dehydroascorbate reductase (DHAR) and mono- dehydroascorbate reductase (MDHAR) in non-enzymatic antioxidant system compared to Cr-sensitive cultivar Zhe77-1. In addition, higher GSH and AsA contents and lower damages of chloroplast ultrastructure were observed in Zhe70-3 under Cr treatment. In conclusion, Cr stress can cause less oxidative stress and destruction of chloroplast ultrastructure in Cr-tolerant cultivar Zhe70-3, and the AsA-GSH cycle may play a crucial role in kenaf Cr tolerance.
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