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Demecsová L, Zelinová V, Liptáková Ľ, Valentovičová K, Tamás L. Indole-3-butyric acid priming reduced cadmium toxicity in barley root tip via NO generation and enhanced glutathione peroxidase activity. PLANTA 2020; 252:46. [PMID: 32885283 DOI: 10.1007/s00425-020-03451-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 08/27/2020] [Indexed: 05/13/2023]
Abstract
Activation of GPX and enhanced NO level play a key role in IBA-mediated enhanced Cd tolerance in young barley roots. Application of exogenous indole-3-acetic acid (IAA) or an IAA precursor improves the tolerance of plants to heavy metals. However, the physiology of these tolerance mechanisms remains largely unknown. Therefore, we studied the priming effect of indole-3-butyric acid (IBA), an IAA precursor, on mild and severe cadmium (Cd) stress-induced responses in roots of young barley seedlings. IBA, similarly to mild Cd stress, significantly increased the glutathione peroxidase (GPX) activity in the apexes of barley roots, which remained elevated after the IBA pretreatment as well. IBA pretreatment-evoked high nitric oxide generation in roots effectively reduced the high superoxide level under the severe Cd stress, leading to less toxic peroxynitrite accumulation accompanied by markedly reduced Cd-induced cell death. On the other hand, the IBA-evoked changes in IAA homeostasis resulted in root growth reorientation from longitudinal elongation to radial swelling. However, the application of an IAA signaling inhibitor, following the activation of defense responses by IBA, was able to promote root growth even at high concentrations of Cd. Based on the results, it can be concluded that the application of IBA, as an effective activator of Cd tolerance mechanisms in young barley roots, and the subsequent use of an IAA signaling inhibitor for the inhibition of root morphogenic responses induced by altered auxin metabolism, results in a high degree of root Cd tolerance, helping it to withstand even the transient exposure to lethal Cd concentration without the absolute inhibition of root growth.
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Affiliation(s)
- Loriana Demecsová
- Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, 84523, Bratislava, Slovak Republic
| | - Veronika Zelinová
- Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, 84523, Bratislava, Slovak Republic
| | - Ľubica Liptáková
- Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, 84523, Bratislava, Slovak Republic
| | - Katarína Valentovičová
- Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, 84523, Bratislava, Slovak Republic
| | - Ladislav Tamás
- Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, 84523, Bratislava, Slovak Republic.
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Jiang HH, Cai LM, Wen HH, Hu GC, Chen LG, Luo J. An integrated approach to quantifying ecological and human health risks from different sources of soil heavy metals. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 701:134466. [PMID: 31704412 DOI: 10.1016/j.scitotenv.2019.134466] [Citation(s) in RCA: 137] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/12/2019] [Accepted: 09/13/2019] [Indexed: 05/22/2023]
Abstract
Heavy metals (HMs) in soil cause adverse effects on ecosystem and human health. Quantifying ecological risk and human health risk (HHR) from sources can determine priority sources and help to mitigate the risks. In this research, geostatistics and positive matrix factorization (PMF) were used to identify and quantify the sources of soil HMs; and then ecological risk and HHR from different sources under woodland, construction land and farmland were quantitatively calculated by combining the potential ecological risk index (RI) and HHR assessment models with PMF model. Taking Jiedong District as an example, four sources were quantitatively apportioned, which were agricultural practices (23.08%), industrial activities (29.10%), natural source (22.87%) and traffic emissions (24.95%). For ecological risk, industrial activities were the greatest contributor, accounting for about 49.71%, 48.11% and 47.15% under construction land, woodland and farmland, respectively. For non-carcinogenic risk, agricultural practices were the largest source under woodland and farmland, while industrial activities were the largest source under construction land. As for carcinogenic risk, no matter which kind of land use, agricultural practices were the largest source. In addition, the health risks of children, including non-carcinogenic and carcinogenic risks, were higher than those of adults, and the trends in health risks for children and adults were similar. The integrated approach was useful to evaluate ecological risk and HHR quantification from sources under different land use, thereby providing valuable suggestions for reducing pollution and protecting human health from the sources.
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Affiliation(s)
- Hui-Hao Jiang
- Key Laboratory of Exploration Technologies for Oil and Gas Resources (Yangtze University), Ministry of Education, Wuhan 430100, China; College of Resources and Environment, Yangtze University, Wuhan 430100, China
| | - Li-Mei Cai
- Key Laboratory of Exploration Technologies for Oil and Gas Resources (Yangtze University), Ministry of Education, Wuhan 430100, China; College of Resources and Environment, Yangtze University, Wuhan 430100, China; Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
| | - Han-Hui Wen
- No. 940 Branch of Geology Bureau for Nonferrous Metals of Guangdong Province, Qingyuan 511500, China
| | - Guo-Cheng Hu
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510535, China
| | - Lai-Guo Chen
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510535, China
| | - Jie Luo
- Key Laboratory of Exploration Technologies for Oil and Gas Resources (Yangtze University), Ministry of Education, Wuhan 430100, China; College of Resources and Environment, Yangtze University, Wuhan 430100, China
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Zhao Q, Gao L, Liu Q, Cao Y, He Y, Hu A, Chen W, Cao J, Hu C, Li L, Tao F. Impairment of learning and memory of mice offspring at puberty, young adulthood, and adulthood by low-dose Cd exposure during pregnancy and lactation via GABA AR α5 and δ subunits. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 166:336-344. [PMID: 30278395 DOI: 10.1016/j.ecoenv.2018.09.109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 09/20/2018] [Accepted: 09/25/2018] [Indexed: 06/08/2023]
Abstract
Cadmium (Cd) is a pervasive carcinogen and environmental endocrine disruptor. We studied the changes in learning and memory of offspring mice, whose mothers were exposed to 10 mg Cd/L via the drinking water during pregnancy and lactation period, as well as the changes of testosterone and estrogen levels, serum Cd levels, the histopathological changes and the changes in the mRNA and protein levels of different subunits of γ-aminobutyric acid receptor subtype A subunits (GABAARs) in the hippocampus at the prepuberty, puberty, young adult, and adult stages. At birth, Cd had no obvious effect on mice offspring as statistically accessed based on their body weight, body length, and tail length (all p > 0.05). After grouped, the serum Cd levels increased in the three exposed groups more than in the normal control group at stages (all p < 0.05). Only serum estradiol of female offspring at age 7 weeks was significantly decreased compared with other groups (all p < 0.05). Histopathological results showed that the arrangement of the cells in hippocampal CA1 area of mice offspring was significantly sparse in the exposed groups compared with the control group. At 5 and 7 weeks, two Cd-exposed groups showed prolonged escape latency and exploring time for the platform compared with the normal group in the Morris water maze (all p < 0.05). Only increased protein expression of GABAARα5 was found in the Cd group at these two ages. At age 12 weeks, similar impaired learning and memory of female mice, and decreased protein expression of GABAARδ was found in Cd-exposed groups. Collectively, low-dose Cd had no effect on the growth of mice offspring but affected their learning and memory, especially female offspring, at puberty, young adulthood, and adulthood through changed structure in the hippocampal CA1 area and protein expression of GABAARα5 and GABAARδ.
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Affiliation(s)
- Qihong Zhao
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, 81 Mei Shan Road, Hefei 230032, Anhui, China; Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui Province, China
| | - Lei Gao
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, 81 Mei Shan Road, Hefei 230032, Anhui, China
| | - Qifei Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, 81 Mei Shan Road, Hefei 230032, Anhui, China
| | - Ye Cao
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, 81 Mei Shan Road, Hefei 230032, Anhui, China
| | - Yue He
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, 81 Mei Shan Road, Hefei 230032, Anhui, China
| | - Anla Hu
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, 81 Mei Shan Road, Hefei 230032, Anhui, China
| | - Wenjun Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, 81 Mei Shan Road, Hefei 230032, Anhui, China
| | - Jiyu Cao
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, 81 Mei Shan Road, Hefei 230032, Anhui, China
| | - Chuanlai Hu
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, 81 Mei Shan Road, Hefei 230032, Anhui, China
| | - Li Li
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, 81 Mei Shan Road, Hefei 230032, Anhui, China
| | - Fangbiao Tao
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui Province, China.
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Melia PM, Busquets R, Ray S, Cundy AB. Agricultural wastes from wheat, barley, flax and grape for the efficient removal of Cd from contaminated water. RSC Adv 2018; 8:40378-40386. [PMID: 35558207 PMCID: PMC9091462 DOI: 10.1039/c8ra07877g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 11/26/2018] [Indexed: 11/21/2022] Open
Abstract
Agricultural production results in wastes that can be re-used to improve the quality of the environment. This work has investigated for the first time the use of abundant, un-modified agricultural wastes and by-products (AWBs) from grape, wheat, barley and flax production, to reduce the concentration of Cd, a highly toxic and mobile heavy metal, in contaminated water. At concentrations of 1.1 mg Cd per L, flax and grape waste were found superior in removing Cd compared with a granular activated carbon used in water treatment, which is both more expensive and entails greater CO2 emissions in its production. At a pH representative of mine effluents, where Cd presents its greatest mobility and risk as a pollutant, grape and flax waste showed capacity for effective bulk water treatment due to rapid removal kinetics and moderate adsorption properties: reaching equilibrium within 183 and 8 min - adsorption capacities were determined as 3.99 and 3.36 mg Cd per g, respectively. The capacity to clean contaminated effluents was not correlated with the surface area of the biosorbents. Surface chemistry analysis indicated that Cd removal is associated with exchange with Ca, and chemisorption involving CdCO3, CdS and CdO groups. This work indicates that some AWBs can be directly (i.e. without pre-treatment or modification) used in bulk to remediate effluents contaminated with heavy metals, without requiring further cost or energy input, making them potentially suitable for low-cost treatment of persistent (e.g. via mine drainage) or acute (e.g. spillages) discharges in rural and other areas.
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Affiliation(s)
- Patrick M Melia
- Kingston University, Faculty of Science, Engineering and Computing Kingston Upon Thames KT1 2EE UK .,Surface Analysis Laboratory, University of Brighton, Faculty of Science and Engineering BN2 4GJ UK
| | - Rosa Busquets
- Kingston University, Faculty of Science, Engineering and Computing Kingston Upon Thames KT1 2EE UK
| | - Santanu Ray
- Surface Analysis Laboratory, University of Brighton, Faculty of Science and Engineering BN2 4GJ UK
| | - Andrew B Cundy
- Surface Analysis Laboratory, University of Brighton, Faculty of Science and Engineering BN2 4GJ UK.,University of Southampton, School of Ocean and Earth Science Southampton SO14 3ZH UK
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Semla M, Schwarcz P, Mezey J, Binkowski ŁJ, Błaszczyk M, Formicki G, Greń A, Stawarz R, Massanyi P. Biogenic and Risk Elements in Wines from the Slovak Market with the Estimation of Consumer Exposure. Biol Trace Elem Res 2018; 184:33-41. [PMID: 28988282 PMCID: PMC5992241 DOI: 10.1007/s12011-017-1157-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 09/14/2017] [Indexed: 12/02/2022]
Abstract
Wine consumption delivers macroelements and microelements necessary for the proper metabolism. On the other hand, wine can be an important source of toxic metals. The aim of this study was to estimate the concentrations of Ca, Cd, Cu, Fe, Hg, Mg, Ni, Pb, and Zn in the Slovak and non-Slovak wines. The concentration of metals was evaluated with respect to the type, the alcohol content, and the age of Slovak wine. The general scheme of concentrations found was as follows Ca > Mg > Fe > Zn > Pb > Cd > Ni > Cu > Hg. The type of wine and the alcohol content do not have a significant impact on metal concentrations. Also, the age of wine has no influence on the mean concentration of metals, except for Zn. Metal concentrations in Slovak and non-Slovak wines indicate similar contents of metals, except for Ni. The contribution to both dietary reference values (DRVs) and provisional tolerable weekly intake (PTWI) evaluations in the Slovak wine suggested low dietary exposure to Ca, Cu, Fe, Mg, Ni, Zn, Cd, Hg, and Pb, respectively. However, we do not suggest that the consumption of all Slovak wines is healthy. The maximum Pb concentrations in Slovak wines exceed the maximum permitted level proposed by the European Commission. This might be proved by the results of the margin of the exposure (MOE) value evaluation in the samples containing the maximum Pb concentrations, showing a high risk of CKD and SBP in high and extreme consumption groups.
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Affiliation(s)
- Magdalena Semla
- Institute of Biology, Pedagogical University of Cracow, Podbrzezie 3, 31-054 Krakow, Poland
| | - Pavol Schwarcz
- Department of EU Policies, Faculty of European Studies and Regional Development, Slovak University of Agriculture, Trieda Hlinku 2, 949 01 Nitra, Slovak Republic
| | - Ján Mezey
- Department of Fruit Growing, Viticulture and Enology, Faculty of Horticulture and Landscape Engineering, Tulipánová 7, 949 76 Nitra, Slovak Republic
| | - Łukasz J. Binkowski
- Institute of Biology, Pedagogical University of Cracow, Podbrzezie 3, 31-054 Krakow, Poland
| | - Martyna Błaszczyk
- Institute of Biology, Pedagogical University of Cracow, Podbrzezie 3, 31-054 Krakow, Poland
| | - Grzegorz Formicki
- Institute of Biology, Pedagogical University of Cracow, Podbrzezie 3, 31-054 Krakow, Poland
| | - Agnieszka Greń
- Institute of Biology, Pedagogical University of Cracow, Podbrzezie 3, 31-054 Krakow, Poland
| | - Robert Stawarz
- Institute of Biology, Pedagogical University of Cracow, Podbrzezie 3, 31-054 Krakow, Poland
| | - Peter Massanyi
- Institute of Biology, Pedagogical University of Cracow, Podbrzezie 3, 31-054 Krakow, Poland
- Department of Animal Physiology, Slovak University of Agriculture, Trieda Hlinku 2, 949 01 Nitra, Slovak Republic
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