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Polechońska L, Rozman U, Sokołowska K, Kalčíková G. The bioadhesion and effects of microplastics and natural particles on growth, cell viability, physiology, and elemental content of an aquatic macrophyte Elodea canadensis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 902:166023. [PMID: 37541516 DOI: 10.1016/j.scitotenv.2023.166023] [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: 05/22/2023] [Revised: 08/01/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023]
Abstract
Microplastics in the aquatic environment can interact with aquatic plants, but the consequences of these interactions are poorly understood. Therefore, the aim of this study was to investigate the effects of microplastics commonly found in the environment, namely polyethylene (PE) fragments, polyacrylonitrile (PAN) fibres, tire wear (TW) particles under a relevant environmental concentration (5000 particles/L) on the growth, cell viability, physiology, and elemental content of the aquatic macrophyte Elodea canadensis. The effects of microplastics were compared to those of natural wood particles. The results showed that all types of microplastics adhered to plant tissues, but the effect on leaves (leaf damage area) was greatest at PE > PAN > TW, while the effect of natural particles was comparable to that of the control. None of the microplastics studied affected plant growth, lipid, carbohydrate, or protein content. Electron transport system activity was significantly higher in plants exposed to PAN fibres and PE fragments, but also when exposed to natural particles, while chlorophyll a content was negatively affected only by PE fragments and TW particles. Elemental analysis of plant tissue showed that in some cases PAN fibres and TW particles caused increased metal content. The results of this study indicated that aquatic macrophytes may respond differently to exposure to microplastics than to natural particles, likely through the combined effects of mechanical damage and chemical stress.
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Affiliation(s)
- Ludmiła Polechońska
- Department of Ecology, Biogeochemistry and Environmental Protection, University of Wrocław, ul. Kanonia 6/8, 50-328 Wrocław, Poland.
| | - Ula Rozman
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, 113 Večna pot, SI-1000 Ljubljana, Slovenia
| | - Katarzyna Sokołowska
- Department of Plant Developmental Biology, University of Wrocław, ul. Kanonia 6/8, Wrocław 50-328, Poland
| | - Gabriela Kalčíková
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, 113 Večna pot, SI-1000 Ljubljana, Slovenia.
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González-Ramírez LR, Alaçam D, Akpinar A. A mathematical model of Chenopodium album L. dynamics under copper-induced stress. Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.109967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Shoaib M, Hussain S, Cheng X, Cui Y, Liu H, Chen Q, Ma M, Gu Y, Zhao K, Xiang Q, Zhou J, Liu J, Li S, Zou T, Yu X. Synergistic anti-oxidative effects of Pongamia pinnata against nickel mediated by Rhizobium pisi and Ochrobacterium pseudogrignonense. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 217:112244. [PMID: 33933891 DOI: 10.1016/j.ecoenv.2021.112244] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/04/2021] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
Nickel is widely spread by different anthropogenic activities and shows toxicity for plant growth and development. Whether rhizobia symbiotically fix nitrogen can eliminate or reduce nickel toxic effect on plant or not is still unknown. This study was aimed to investigate the effect of different rhizobia genus inoculation on growth, nitrogen fixing ability, metal accumulation and enzymatic antioxidative balance of Pongamia pinnnaa. Inoculation with Rhizobium pisi and Ochrobacterium pseudogrignonense increased the all the growth parameters both in 0 and 40 mg/kg nickel as comparison with control. Only shoot length increased in presence of nitrogen as compared with no supply of nitrogen. Nitrogen content also increased both in rhizobia inoculation as compared to no nitrogen supply and non-inoculation control, respectively. Nickel uptake was higher in shoots and leaves but lower in roots in case of inoculation as compared to non-inoculation control. Rhizobia inoculation improved the plant antioxidant capacity by increasing the activity of enzymatic scavengers catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) and ascorbate (GR). However, 40 mg/kg of nickel adding showed mostly effect on the activity CAT, SOD, POD in leaves. All the enzymatic activity showed a significant increase in absence of nitrogen supply as compared nitrogen supply. Our results suggested that rhizobia inoculation effectively mediated nickel stress for legume plants by increasing nitrogen supplement and inducing antioxidant capacity.
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Affiliation(s)
- Muhammad Shoaib
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Sajad Hussain
- College of Agronomy, Sichuan Agricultural University, Chengdu, PR China
| | - Xiran Cheng
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Yongliang Cui
- Sichuan Provincial Academy of Natural Resource and Sciences, Chengdu 610015, PR China
| | - Han Liu
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Qiang Chen
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Menggen Ma
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Yunfu Gu
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Ke Zhao
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Quanju Xiang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Jie Zhou
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Jiahao Liu
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Shuangcheng Li
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Ting Zou
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Xiumei Yu
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China.
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Malea P, Mylona Z, Panteris E, Kevrekidis DP, Kevrekidis T. Nickel uptake kinetics and its structural and physiological impacts in the seagrass Halophila stipulacea. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111386. [PMID: 33035915 DOI: 10.1016/j.ecoenv.2020.111386] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/15/2020] [Accepted: 09/17/2020] [Indexed: 06/11/2023]
Abstract
The present work aims to provide insight into interactions between trace metals and higher plants, focusing on nickel uptake and its effects in seagrasses at environmentally relevant concentrations. Total and intracellular nickel accumulation kinetics, nickel effects on structural cell components, oxidative stress marker and cellular viability, and the accumulation kinetics-toxic effects relationship were investigated in leaves of Halophila stipulacea plants incubated in seawater under laboratory conditions containing nickel ions at 0.01-10 mg L-1 for 14 days. Nickel accumulation kinetics in H. stipulacea young and older apical leaves followed a Michaelis-Menten-type equation, allowing the calculation of uptake parameters; uptake rate (Vc) and equilibrium concentration (Ceq) tended to increase with the increase of nickel concentration in the medium. A dose- and uptake parameter-dependent actin filament (AF) and endoplasmic reticulum (ER) impairment was observed, whereas no effects occurred on microtubules and cell ultrastructure. AF disturbance and ER aggregation were firstly observed in differentiated cells at the lowest concentration on the 12th and 14th day, respectively, while AF disruption in meristematic cells firstly occurred at 0.05 mg L-1; the effects appeared earlier and were more acute at higher concentrations. Increased H2O2 levels were detected, while, at the highest exposures, a significant reduction in epidermal cell viability in older leaves occurred. The lowest total nickel concentrations in young leaves associated with AF disturbance onset at nickel exposure concentrations of 0.01-1 mg L-1 varied between 18.98 and 63.93 μg g-1 dry wt; importantly, they were comparable to nickel concentrations detected in seagrass leaves from various locations. The relationships between exposure concentration, uptake kinetic parameters and toxic effect onset were satisfactorily described by regression models. Our findings suggest that (a) nickel may pose a threat to seagrass meadows, (b) H. stipulacea can be regarded as an efficient biomonitor of nickel, (c) AF and ER impairment in seagrass leaves can be considered as early biomarkers of nickel-induced stress, and (d) the regression models obtained can be used as a tool to evaluate ambient nickel levels and to detect ecotoxicologically significant nickel contamination. The data presented can be utilized in the management and conservation of the coastal environment.
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Affiliation(s)
- Paraskevi Malea
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece.
| | - Zoi Mylona
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece
| | - Emmanuel Panteris
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece
| | | | - Theodoros Kevrekidis
- Laboratory of Environmental Research and Education, Democritus University of Thrace, Nea Hili, GR-68131, Alexandroupolis, Greece.
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Krylova EG, Garin EV. The effect of the combined action of nickel and copper ions on the initial stages of ontogenesis of Alisma plantago-aquatica. REGULATORY MECHANISMS IN BIOSYSTEMS 2020. [DOI: 10.15421/022056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Surface water pollution has a complex multicomponent nature, due to a combination of various heavy metals that have a synergistic or antagonistic effect on various physiological parameters. Under model conditions, the combined effect of several heavy metals on aquatic plants was studied in terms of their toxicity, taking into account the nature of the interaction. In laboratory conditions, we studied the effect of nickel and copper ions and their mixtures in different concentrations on seed germination, growth and development of seedlings of the coastal-aquatic plant Alisma plantago-aquatica L. At the end of the experiment, seed germination, inhibition coefficient, morphometric indicators of seedlings and tolerance index were determined. Alisma seeds are highly resistant to nickel and copper chlorides and their mixtures. The toxicity limit for seed germination at 1–500 mg/L was not detected, although the inhibition coefficient in all variants of the experiment increased. A greater toxic effect of copper ions was noted compared to nickel ions. With the joint action of two metals on seed germination, a change in the nature of the effect from an independent action at low concentrations to antagonism at high concentrations was revealed. The growth and development of seedlings was observed at 1–100 mg/L. The main inhibitory effect of heavy metals was on the length of the main root, the first true leaf, and the number of adventitious roots. Necrosis of the root system and hypocotyl, a weakening of the differentiation of the site of transition of the hypocotyl to the cotyledon, a change in the shape of the cotyledon, the colour intensity and turgor of the cotyledon and leaves were noted. The tolerance index showed that resistance at a level above 50% to the action of nickel, copper and their mixture was maintained at 1 mg/L. In the case of the development of hypocotyl and cotyledon, copper was more toxic than nickel; nickel had a greater inhibitory effect on leaves. Under the action of the heavy metal mixture on the growth and development of seedlings, the independent action at low concentrations changed to antagonistic at high concentrations, which is probably due to competition in a number of indicators between nickel and copper.
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Baydoun M, Da Silva A, Decou R, Krayem M, Hourdin P, Cleries K, Fondanèche P, Hak T, Deluchat V. Assessment of metal/metalloid occurrence in rivers with their accumulation in macrophyte case study with Myriophyllum alterniflorum. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:337. [PMID: 32383005 DOI: 10.1007/s10661-020-08257-7] [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: 07/22/2019] [Accepted: 03/30/2020] [Indexed: 06/11/2023]
Abstract
Water quality monitoring with integrative tools is a main issue of concern for environment assessment. Submerged aquatic macrophyte can be a good candidate for the evaluation of contaminant content in rivers. Indeed, owing to their habitat, aquatic macrophytes interact directly with surface water; they can absorb contaminants and thus allow to detect their presence in water. In situ studies were conducted over 28 days in five aquatic environments, affected by different levels of anthropogenic pressure (domestic wastewater plant, industrial activities), during two field campaigns. We have investigated whether the accumulation of some metals and a metalloid (As) in Myriophyllum alterniflorum could be used to detect their occurrence in river waters. Our results demonstrated that long time bioaccumulation was correlated with the contaminant levels in water. However, the water composition and the duration of exposure affected the studied pollutants' absorption. On an operational point of view, the optimal duration of exposure of Myriophyllum alterniflorum to assess the water quality is conditioned by the contaminant contents in waters that can induce different defense mechanisms as the reduction of pollutant absorption and their efflux. In addition, the nutrient concentration influenced the accumulation of pollutants since the higher the nutrient level, the higher the essential metal accumulation was observed.
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Affiliation(s)
- Mohamad Baydoun
- Limoges University, PEIRENE EA 7500, 123 Av. Albert Thomas, 87060, Limoges Cedex, France
| | - Anne Da Silva
- Limoges University, PEIRENE EA 7500, 123 Av. Albert Thomas, 87060, Limoges Cedex, France
| | - Raphaël Decou
- Limoges University, PEIRENE EA 7500, 123 Av. Albert Thomas, 87060, Limoges Cedex, France
| | - Maha Krayem
- Limoges University, PEIRENE EA 7500, 123 Av. Albert Thomas, 87060, Limoges Cedex, France
- Department of Biological Sciences, Lebanese International University, 1803, Bekaa campus, Beirut, Lebanon
| | - Philippe Hourdin
- Limoges University, PEIRENE EA 7500, 123 Av. Albert Thomas, 87060, Limoges Cedex, France
| | - Karine Cleries
- Limoges University, PEIRENE EA 7500, 123 Av. Albert Thomas, 87060, Limoges Cedex, France
| | - Patrice Fondanèche
- Limoges University, PEIRENE EA 7500, 123 Av. Albert Thomas, 87060, Limoges Cedex, France
| | - Thierry Hak
- Limoges University, PEIRENE EA 7500, 123 Av. Albert Thomas, 87060, Limoges Cedex, France
| | - Véronique Deluchat
- Limoges University, PEIRENE EA 7500, 123 Av. Albert Thomas, 87060, Limoges Cedex, France.
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Gowri S, Thangaraj R. Studies on the toxic effects of agrochemical pesticide (Monocrotophos) on physiological and reproductive behavior of indigenous and exotic earthworm species. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2020; 30:212-225. [PMID: 30897939 DOI: 10.1080/09603123.2019.1590538] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 03/01/2019] [Indexed: 06/09/2023]
Abstract
Earthworms are an ideal biological model in toxicity assays and environmental monitoring studies. In the present study, the reproductive toxicity and histopathological effects of Monocrotophos pesticide on an exotic epigeic Eudrilus eugeniae and an indigenous epigeic Perionyx barotensis earthworm were studied. Earthworm species were exposed to different concentrations of pesticide like 450 ppm, 500 ppm, and 650 ppm for 45 days and the mortality rate and reproductive activity was recorded every 15 days of exposure. There was an increase in mortality and abnormal sperm (asthenospermia, necrospermia, and oligospermia) and defective cocoons in earthworms with increasing concentrations of the pesticide. Histopathological changes like rupture of chloragogenous tissue, longitudinal muscle, fused and extra-villous growth and necrotic cell rupture in earthworm's body wall (epidermis, circular and longitudinal muscles) were observed. Fluorescent probes have detected cell death in pesticide-treated earthworms when compared to the control group after 45 days. The present findings show that Monocrotophos pesticide on exposure to epigeic earthworm species causes significant reproductive toxicity and histopathological abnormalities and these changes could be used as a tool in environmental risk assessment of pesticides.Abbreviations: DDT: Dichlorodiphenyltrichloroethane; MCP: Monocrotophos; EPA: Environment Protection Act; SL: Soluble Liquid; C: N (Carbon: Nitrogen); C: P (Carbon: Phosphorus); LC: Lethal Concentration; PBS: Phosphate Buffer Solution; WHO: World Health Organization; H&E: Hematoxylin and Eosin; SV: seminal vesicles; O: ovary; GP: genital papillae; Ch: chloragogenous tissue; EL: epithelial layer; CM: circular muscle; LM: longitudinal muscle; CD: cell debris.
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Affiliation(s)
- Sekar Gowri
- Vermitechnology and Ecotoxicology Laboratory, Department of Zoology, School of Life Sciences, Periyar University, Salem, Tamil Nadu, India
| | - Ramasundaram Thangaraj
- Vermitechnology and Ecotoxicology Laboratory, Department of Zoology, School of Life Sciences, Periyar University, Salem, Tamil Nadu, India
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Zhang H, Zhang LL, Li J, Chen M, An RD. Comparative study on the bioaccumulation of lead, cadmium and nickel and their toxic effects on the growth and enzyme defence strategies of a heavy metal accumulator, Hydrilla verticillata (L.f.) Royle. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:9853-9865. [PMID: 31927739 DOI: 10.1007/s11356-019-06968-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
The current hydroponic experiment investigated differences in the uptake, physiological response and defence mechanisms of Hydrilla verticillata (L.f.) Royle in response to three representative toxic heavy metals. The results revealed the following: as an excellent heavy metal accumulator, H. verticillata showed an accumulation pattern of Ni > Cd > Pb within experimental scope. Fourteen days (Ni and Cd) and 21 days (Pb) were the time thresholds under the same heavy metal concentration toxicity, while 33.06 μM (Ni) and 40 μM (Cd and Pb) were the concentration thresholds under the same 21-day duration treatment, to accumulate the most amount of metals. Hence, Pb might be accumulated more if it expands the experimental duration and concentration, for it continuously increases throughout the experimental period. Reasons for these uptake differences are that plant physiological response, tolerance and resistance vary under different heavy metal stress. First, the biomass and protein content of H. verticillata were both the highest under Pb stress, indicating the plant largest tolerance to Pb stress. Second, the tolerance thresholds of three antioxidant enzymes (SOD, CAT and POD) were the highest under Pb stress. Third, the three antioxidant enzymes and two other related resistance-causing enzymes (PPO and PAL) revealed that plant resistance was strongest at low Cd concentrations (0-20 μM) and at high Pb stress levels (40 μM). Furthermore, CAT is the most important antioxidant enzyme to combat three metal stresses (average relevance: CAT(0.89) > POD(0.48) > SOD(0.42)), while PAL is more important than PPO (average relevance: PAL (0.77) > PPO(0.72)). In conclusion, Pb-polluted water is best treated with H. verticillata because of the latter's high uptake potential and strong defence capacity. These results provide an accurate, efficient and economical reference for phytoremediation. Graphical abstract.
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Affiliation(s)
- Hong Zhang
- Institute of Ecology and Environment, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu, 610065, China
| | - Ling-Lei Zhang
- Institute of Ecology and Environment, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu, 610065, China.
| | - Jia Li
- Institute of Ecology and Environment, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu, 610065, China.
| | - Min Chen
- Institute of Ecology and Environment, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu, 610065, China
| | - Rui-Dong An
- Institute of Ecology and Environment, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu, 610065, China
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Chen F, Zeng S, Luo Z, Ma J, Zhu Q, Zhang S. A novel MBBR–MFC integrated system for high-strength pulp/paper wastewater treatment and bioelectricity generation. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1641519] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Fu Chen
- Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou, Jiangsu, China
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu, China
| | - Siyan Zeng
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu, China
| | - Zhanbin Luo
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu, China
| | - Jing Ma
- Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou, Jiangsu, China
- Amap, Inra, Cnrs, Ird, Cirad, University of Montpellier, Montpellier, France
| | - Qianlin Zhu
- Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou, Jiangsu, China
| | - Shaoliang Zhang
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu, China
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Bhagyawant SS, Narvekar DT, Gupta N, Bhadkaria A, Koul KK, Srivastava N. Variations in the antioxidant and free radical scavenging under induced heavy metal stress expressed as proline content in chickpea. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2019; 25:683-696. [PMID: 31168232 PMCID: PMC6522589 DOI: 10.1007/s12298-019-00667-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/22/2019] [Accepted: 04/02/2019] [Indexed: 05/13/2023]
Abstract
This study pertains to the effects of heavy metal salts viz., copper (Cu), manganese (Mn), lead (Pb) and zinc (Zn) on the chickpea accession ICC-4812. The salts were given as treatments to the chickpea seeds at various ascending levels of doses till proving toxic. The treatment of 24 h soaked and swollen seeds were then extended to 7 days duration from the date of treatment. Atomic absorption spectrophotometric analysis of bioassay tissue Cicer, showed maximum uptake of 9.41 mg/g and minimum of 1.65 mg/g tissue dry weight for Pb and Zn respectively. The study reveals that enhanced antioxidant responses are associated with substantial proline accumulation indicating induced stress. Ferric reducing antioxidant power assay measuring antioxidant activity was highest in the chickpea seedling treated with Zn, whereas, free radical scavenging activity was highest in the treatments with Mn. The total phenolic and flavonoid contents ranged between 0.24-0.97 and 0.27-1.00 mg/g of dry matter content respectively. Higher Pb and Zn doses seem to elicit higher proline levels therefore, suggesting an extreme condition of induced abiotic stress. Dose dependent protein oxidation coupled with DNA degradation was observed in all treatments, depicting genotoxicity. Unweighted pair-group method arithmetic average analysis presented similarity coefficients between the treatments.
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Affiliation(s)
| | | | - Neha Gupta
- School of Studies in Biotechnology, Jiwaji University, Gwalior, India
| | - Amita Bhadkaria
- School of Studies in Biotechnology, Jiwaji University, Gwalior, India
| | | | - Nidhi Srivastava
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Banasthali, India
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De Marco C, Mauler RS, Daitx TS, Krindges I, Cemin A, Bonetto LR, Crespo JS, Guégan R, Carli LN, Giovanela M. Removal of malachite green dye from aqueous solutions by a magnetic adsorbent. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1585455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- C. De Marco
- Área do Conhecimento de Ciências Exatas e Engenharias, Universidade de Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
| | - R. S. Mauler
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - T. S. Daitx
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - I. Krindges
- Área do Conhecimento de Ciências Exatas e Engenharias, Universidade de Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
| | - A. Cemin
- Área do Conhecimento de Ciências Exatas e Engenharias, Universidade de Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
| | - L. R. Bonetto
- Área do Conhecimento de Ciências Exatas e Engenharias, Universidade de Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
| | - J. S. Crespo
- Área do Conhecimento de Ciências Exatas e Engenharias, Universidade de Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
| | - R. Guégan
- Faculty of Science and Engineering, Global Center for Science and Engineering, Waseda University, Tokyo, Japan
| | - L. N. Carli
- Campus Blumenau, Universidade Federal de Santa Catarina, Blumenau, Santa Catarina, Brazil
| | - M. Giovanela
- Área do Conhecimento de Ciências Exatas e Engenharias, Universidade de Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
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12
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Song Y, Zhang LL, Li J, He XJ, Chen M, Deng Y. High-potential accumulation and tolerance in the submerged hydrophyte Hydrilla verticillata (L.f.) Royle for nickel-contaminated water. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:553-562. [PMID: 29929131 DOI: 10.1016/j.ecoenv.2018.06.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 06/08/2018] [Accepted: 06/11/2018] [Indexed: 06/08/2023]
Abstract
Water contamination by nickel (Ni) has become an increasing concern in recent decades. Hydrilla verticillata (L.f.) Royle has been recognized as a promising accumulator of several potentially toxic elements (PTEs) in phytoremediation, but its Ni-accumulation characteristics and its mechanisms of tolerance to Ni remain largely unknown. This research investigated the biochemical responses of leaves and stems of H. verticillata to various concentrations of Ni (5, 10, 15, 20, and 40 μM) over periods of 7, 14, or 21 days. Plants accumulated considerable Ni to a maximum amount of 1080 mg kg-1 dry weight (DW) with a maximum bioconcentration factor of 1100; thus, high Ni accumulation was detected in H. verticillata. Low concentrations (5-15 μM) or short durations (less than 14 days) of Ni exposure might promote plant growth without adversely affecting normal metabolism. After peaking at day 14, a decline in bioaccumulation was unexpectedly observed as a long-term effect of Ni toxicity. Malondialdehyde content and the activities of defense-related enzymes changed in a similar pattern after treatment with Ni, increasing with both Ni concentration and exposure time to a peak (often at 5-15 μM on day 14), followed by a decline. Through a comprehensive analysis of all the test parameters, the tolerance thresholds were determined to be > 40.0 μM, 24.0 μM, and 15.8 μM at days 7, 14, and 21, respectively. Hydrilla verticillata could be a "high-potential accumulator" capable of decontaminating aquatic bodies polluted by Ni within the threshold range.
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Affiliation(s)
- Yang Song
- Institute of Ecology and Environment, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu, Sichuan, China
| | - Ling-Lei Zhang
- Institute of Ecology and Environment, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu, Sichuan, China.
| | - Jia Li
- Institute of Ecology and Environment, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu, Sichuan, China
| | - Xiao-Jia He
- Institute of Ecology and Environment, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu, Sichuan, China
| | - Min Chen
- Institute of Ecology and Environment, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu, Sichuan, China
| | - Yun Deng
- Institute of Ecology and Environment, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu, Sichuan, China
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Maleva M, Garmash E, Chukina N, Malec P, Waloszek A, Strzałka K. Effect of the exogenous anthocyanin extract on key metabolic pathways and antioxidant status of Brazilian elodea (Egeria densa (Planch.) Casp.) exposed to cadmium and manganese. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 160:197-206. [PMID: 29804017 DOI: 10.1016/j.ecoenv.2018.05.031] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 04/29/2018] [Accepted: 05/12/2018] [Indexed: 05/20/2023]
Abstract
Present study deals with the effect of 24 h pre-incubation with exogenous anthocyanins (ANTH), extracted from red cabbage leaves, on key metabolic processes (photosynthesis and respiration) and pro-/antioxidant balance in the aquatic macrophyte Egeria densa (Planch.) Casp., Hydrocharitaceae family, treated with Cd and Mn (in sulfate form) at a concentration of 100 μmol. After five days of metal treatments, Cd was accumulated and the damage caused to metabolic processes was stronger than Mn. In Cd-treated leaves, the protein level, chlorophyll concentration and maximal photochemical efficiency of PS II decreased twofold, and net-photosynthesis was significantly inhibited, whereas lipid peroxidation and H2O2 production increased. In turn, protective responses developed, including an increase in the total soluble thiols, alternative respiratory pathway capacity and the activity of superoxide dismutase and peroxidases. Pre-incubation in the ANTH-enriched extract caused an increase in foliar ANTH content, enhanced Cd and reduced Mn uptake into the tissue. A decrease in the level of oxidative reactions, an increase in the protein and chlorophyll concentration compared to the control values and a partial improvement of the photosynthetic parameters confirmed the ability of ANTH to reduce Cd-induced damage effects and to mitigate ROS-driven stress reactions. Stimulation of catalase and ascorbate peroxidase activity, an alternative respiration capacity and non-enzymatic antioxidant (carotenoids, ascorbate and proline) synthesis by ANTH were also revealed. These data suggest that ANTH-enriched extract from red cabbage leaves has a protective action against metal toxicity in Egeria plants.
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Affiliation(s)
- Maria Maleva
- Department of Experimental Biology and Biotechnology, Institute of Natural Sciences and Mathematics, Ural Federal University, Ekaterinburg, Russia.
| | - Elena Garmash
- Institute of Biology, Komi Scientific Centre of the Ural Branch of the Russian Academy of Sciences, Syktyvkar, Russia.
| | - Nadezhda Chukina
- Department of Experimental Biology and Biotechnology, Institute of Natural Sciences and Mathematics, Ural Federal University, Ekaterinburg, Russia.
| | - Przemysław Malec
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.
| | - Andrzej Waloszek
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Kazimierz Strzałka
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland; Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland.
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Borisova G, Chukina N, Maleva M, Kumar A, Prasad MNV. Thiols as biomarkers of heavy metal tolerance in the aquatic macrophytes of Middle Urals, Russia. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2016; 18:1037-45. [PMID: 27167595 DOI: 10.1080/15226514.2016.1183572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Aquatic macrophytes, viz. Sagittaria sagittifolia L., Lemna gibba L., Elodea canadensis Michx., Batrachium trichophyllum (Chaix.) Bosch., Ceratophyllum demersum L. and Potamogeton sp. (P. perfoliatus L., P. alpinus Balb., P. crispus L., P. berchtoldii Fieber, P. friesii Rupr., P. pectinatus L.) were collected from 11 sites for determining their metal accumulation and thiols content. Cu(2+), Ni(2+), Mn(2+), Zn(2+), and Fe(3+) exceeded maximum permissible concentrations in chosen sites. Significant transfer of metals from water to leaves is observed in the order of Ni(2+) < Cu(2+) < Zn(2+) < Fe(3+) < Mn(2+). The maximum variation of bioconcentration factor was noticed for manganese. The accumulation of heavy metals in leaves was correlated with non-protein and protein thiols, confirming their important role in metal tolerance. The largest contribution was provided by Cu(2+) (on the average r = 0.88, p < 0.05), which obviously can be explained as an important role of these ions in thiols synthesis. Increased synthesis of thiols in the leaves allows the usage of SH-containing compounds as biomarkers of metal tolerance. Considering accumulation of metals and tolerance, B. trichophyllum, C. demersum and L. gibba are the most suitable species for phytoremediation of highly multimetal contamination, while E. canadensis and some species of Potamageton are suitable for moderately metal-polluted sites.
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Affiliation(s)
- Galina Borisova
- a Department of Plant Physiology and Biochemistry , Faculty of Biology, Institute of Natural Sciences, Ural Federal University , Ekaterinburg , Russia
| | - Nadezda Chukina
- a Department of Plant Physiology and Biochemistry , Faculty of Biology, Institute of Natural Sciences, Ural Federal University , Ekaterinburg , Russia
| | - Maria Maleva
- a Department of Plant Physiology and Biochemistry , Faculty of Biology, Institute of Natural Sciences, Ural Federal University , Ekaterinburg , Russia
| | - Adarsh Kumar
- a Department of Plant Physiology and Biochemistry , Faculty of Biology, Institute of Natural Sciences, Ural Federal University , Ekaterinburg , Russia
| | - M N V Prasad
- a Department of Plant Physiology and Biochemistry , Faculty of Biology, Institute of Natural Sciences, Ural Federal University , Ekaterinburg , Russia
- b Department of Plant Sciences , University of Hyderabad , Hyderabad , India
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15
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Maleva MG, Malec P, Prasad MNV, Strzałka K. Kinetics of nickel bioaccumulation and its relevance to selected cellular processes in leaves of Elodea canadensis during short-term exposure. PROTOPLASMA 2016; 253:543-551. [PMID: 25985854 DOI: 10.1007/s00709-015-0832-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 05/07/2015] [Indexed: 06/04/2023]
Abstract
Elodea canadensis is an aquatic macrophyte used widely as a bioindicator for the monitoring of water quality and in the phytoremediation of metal-contaminated waters. This study considers the kinetics of nickel bioaccumulation and changes in accompanying metabolic and stress-related physiological parameters. These include photosynthetic activity, pigment content, the accumulation of thiol-containing compounds, thiobarbituric acid-reactive substance (TBARS) products, and the activity of selected antioxidant enzymes (catalase, glutathione reductase, superoxide dismutase). Elodea leaves accumulated nickel according to pseudo-second-order kinetics, and the protective responses followed a time sequence which was related to the apparent rates of nickel accumulation. The applicability of second-order kinetics to the Ni uptake by Elodea leaves during the first 8 h of exposure to the metal suggested that the passive binding of metal ions (chemisorption) was a rate-limiting step at the initial phase of Ni accumulation. This phase was accompanied by an increase in photosynthetic activity together with elevated photosynthetic pigments and protein synthesis, the enhanced activity of antioxidant enzymes, and increased thiol concentration. In contrast, there was a decrease in metabolic activity upon the accumulation of TBARS, and the decline in enzyme activity was observed in the saturation phase of Ni accumulation (8-24 h). These results show that a correlation exists between the protective response and the apparent kinetic rate of Ni uptake. Thus, the time of exposure to the toxicant is a crucial factor in the activation of specific mechanisms of Ni detoxification and stress alleviation.
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Affiliation(s)
- Maria G Maleva
- Department of Plant Physiology and Biochemistry, Ural Federal University named after the first President of Russia B.N. Yeltsin, Lenin av. 51, Ekaterinburg, Russia, 620000
| | - Przemysław Malec
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, ul. Gronostajowa 7, 30-387, Kraków, Poland
| | - Majeti Narasimha Vara Prasad
- Department of Plant Physiology and Biochemistry, Ural Federal University named after the first President of Russia B.N. Yeltsin, Lenin av. 51, Ekaterinburg, Russia, 620000
- Department of Plant Sciences, University of Hyderabad, Hyderabad, Telangana, 500 046, India
| | - Kazimierz Strzałka
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, ul. Gronostajowa 7, 30-387, Kraków, Poland.
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16
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Abstract
Metal toxicity in plants is still a global problem for the environment, agriculture and ultimately human health.
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Affiliation(s)
- Hendrik Küpper
- Biology Center of the Czech Academy of Sciences
- Institute of Plant Molecular Biology
- Department of Plant Biophysics & Biochemistry
- 370 05 České Budějovice, Czech Republic
- University of South Bohemia
| | - Elisa Andresen
- Biology Center of the Czech Academy of Sciences
- Institute of Plant Molecular Biology
- Department of Plant Biophysics & Biochemistry
- 370 05 České Budějovice, Czech Republic
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17
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Török A, Gulyás Z, Szalai G, Kocsy G, Majdik C. Phytoremediation capacity of aquatic plants is associated with the degree of phytochelatin polymerization. JOURNAL OF HAZARDOUS MATERIALS 2015; 299:371-8. [PMID: 26143200 DOI: 10.1016/j.jhazmat.2015.06.042] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 06/12/2015] [Accepted: 06/18/2015] [Indexed: 05/27/2023]
Abstract
Phytochelatins (PCs) play important role in phytoremediation as heavy metal binding peptides. In the present study, the association between heavy metal removal capacity and phytochelatin synthesis was compared through the examination of three aquatic plants: Elodea canadensis, Salvinia natans and Lemna minor. In case of a Cd treatment, or a Cd treatment combined with Cu and Zn, the highest removal capacity was observed in L. minor. At the same time, E. canadensis showed the lowest removal capacity except for Zn. The heavy metal-induced (Cu+Zn+Cd) oxidative stress generated the highest ascorbate level in L. minor. Cd in itself or combined with the other two metals induced a 10-15-fold increase in the amount of ɣ-glutamylcysteine in L. minor while no or smaller changes were observed in the other two species. Correspondingly, the total PC content was 6-8-fold greater in L. minor. In addition, PCs with higher degree of polymerization were only observed in L. minor (PC4, PC6 and PC7) while PC2 and PC3 occurred in E. canadensis and S. natans only. The correlation analysis indicated that the higher phytoremediation capacity of L. minor was associated with the synthesis of PCs and their higher degree of polymerization.
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Affiliation(s)
- Anamaria Török
- Department of Technological Chemistry, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania; Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
| | - Zsolt Gulyás
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
| | - Gabriella Szalai
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
| | - Gábor Kocsy
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary.
| | - Cornelia Majdik
- Department of Technological Chemistry, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania
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18
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Islam E, Khan MT, Irem S. Biochemical mechanisms of signaling: perspectives in plants under arsenic stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 114:126-33. [PMID: 25637747 DOI: 10.1016/j.ecoenv.2015.01.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Revised: 12/29/2014] [Accepted: 01/19/2015] [Indexed: 05/08/2023]
Abstract
Plants are the ultimate food source for humans, either directly or indirectly. Being sessile in nature, they are exposed to various biotic and abiotic stresses because of changing climate that adversely effects their growth and development. Contamination of heavy metals is one of the major abiotic stresses because of anthropogenic as well as natural factors which lead to increased toxicity and accumulation in plants. Arsenic is a naturally occurring metalloid toxin present in the earth crust. Due to its presence in terrestrial and aquatic environments, it effects the growth of plants. Plants can tolerate arsenic using several mechanisms like phytochelation, vacuole sequestration and activation of antioxidant defense systems. Several signaling mechanisms have evolved in plants that involve the use of proteins, calcium ions, hormones, reactive oxygen species and nitric oxide as signaling molecules to cope with arsenic toxicity. These mechanisms facilitate plants to survive under metal stress by activating their defense systems. The pathways by which these stress signals are perceived and responded is an unexplored area of research and there are lots of gaps still to be filled. A good understanding of these signaling pathways can help in raising the plants which can perform better in arsenic contaminated soil and water. In order to increase the survival of plants in contaminated areas there is a strong need to identify suitable gene targets that can be modified according to needs of the stakeholders using various biotechnological techniques. This review focuses on the signaling mechanisms of plants grown under arsenic stress and will give an insight of the different sensory systems in plants. Furthermore, it provides the knowledge about several pathways that can be exploited to develop plant cultivars which are resistant to arsenic stress or can reduce its uptake to minimize the risk of arsenic toxicity through food chain thus ensuring food security.
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Affiliation(s)
- Ejazul Islam
- Soil & Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad 38000, Pakistan.
| | - Muhammad Tahir Khan
- Soil & Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad 38000, Pakistan
| | - Samra Irem
- Soil & Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad 38000, Pakistan
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Love A, Banerjee BD, Babu CR. Assessment of oxidative stress markers and concentrations of selected elements in the leaves of Cassia occidentalis growing wild on a coal fly ash basin. ENVIRONMENTAL MONITORING AND ASSESSMENT 2013; 185:6553-6562. [PMID: 23307051 DOI: 10.1007/s10661-012-3046-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Accepted: 12/05/2012] [Indexed: 06/01/2023]
Abstract
Assessment of oxidative stress levels and tissue concentrations of elements in plants growing wild on fly ash basins is critical for realistic hazard identification of fly ash disposal areas. Hitherto, levels of oxidative stress markers in plants growing wild on fly ash basins have not been adequately investigated. We report here concentrations of selected metal and metalloid elements and levels of oxidative stress markers in leaves of Cassia occidentalis growing wild on a fly ash basin (Badarpur Thermal Power Station site) and a reference site (Garhi Mandu Van site). Plants growing on the fly ash basin had significantly high foliar concentration of As, Ni, Pb and Se and low foliar concentration of Mn and Fe compared to the plants growing on the reference site. The plants inhabiting the fly ash basin showed signs of oxidative stress and had elevated levels of lipid peroxidation, electrolyte leakage from cells and low levels of chlorophyll a and total carotenoids compared to plants growing at the reference site. The levels of both protein thiols and nonprotein thiols were elevated in plants growing on the fly ash basin compared to plants growing on the reference site. However, no differences were observed in the levels of cysteine, reduced glutathione and oxidized glutathione in plants growing at both the sites. Our study suggests that: (1) fly ash triggers oxidative stress responses in plants growing wild on fly ash basin, and (2) elevated levels of protein thiols and nonprotein thiols may have a role in protecting the plants from environmental stress.
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Affiliation(s)
- Amit Love
- Centre for Environmental Management of Degraded Ecosystems (CEMDE), School of Environmental Studies, University of Delhi, Delhi, 110007, India.
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20
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Sytar O, Kumar A, Latowski D, Kuczynska P, Strzałka K, Prasad MNV. Heavy metal-induced oxidative damage, defense reactions, and detoxification mechanisms in plants. ACTA PHYSIOLOGIAE PLANTARUM 2013. [PMID: 0 DOI: 10.1007/s11738-012-1169-6] [Citation(s) in RCA: 238] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
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Abstract
The primary objective of the present study is to evaluate the optimization conditions such as kinetic and equilibrium isotherm models involved in the removal of Ni(II) from the aqueous solutions byTrichoderma viride. The biosorbent was characterized by FTIR and SEM. The optimum biosorption conditions were determined as a function of pH, biomass dosage, contact time, initial metal ion concentration, and temperature. The maximum Ni(II) biosorption was obtained at pH 4.5. The equilibrium data were better fit by the Langmuir isotherm model than by the Freundlich isotherm. The kinetic studies indicate that the biosorption process of the metal ion Ni(II) has followed well the pseudo-second-order model. The sum of the square errors (SSE) and chi-square (χ2) tests were also carried out to find the best fit kinetic model and adsorption isotherm. The maximum biosorption capacity (qm) ofT.viridebiomass was found to be 47.6 mg/g for Ni(II) ion. Therefore, it can be concluded thatT.viridebiomass was effective and low-cost potential adsorbent to remove the toxic metal Ni(II) from aqueous solutions. The recovery process of Ni(II) fromT.viridebiomass was found to be higher than 98% by using 0.25 M HNO3. Besides the application of removal of toxic metal Ni(II) from aqueous solutions, the biosorbentT.viridecan be reused for five consecutive sorption-desorption cycles was determined.
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Rozentsvet OA, Nesterov VN, Sinyutina NF. The effect of copper ions on the lipid composition of subcellular membranes in Hydrilla verticillata. CHEMOSPHERE 2012; 89:108-113. [PMID: 22608709 DOI: 10.1016/j.chemosphere.2012.04.034] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 04/10/2012] [Accepted: 04/16/2012] [Indexed: 06/01/2023]
Abstract
The paper studies changes in the content and composition of lipids in the membranes of chloroplasts, mitochondria and microsomes of the aquatic plant Hydrilla verticillata exposed to copper ions (100 μM; 1, 3, 6 and 24 h). The rate of copper accumulation and the coefficient of its extraction by the plant were also determined. The presence of copper in the incubation medium and its accumulation in the plant tissues decreased the content of photosynthetic pigments, stimulated lipid peroxidation and enhanced membrane permeability. The gradual accumulation of copper in the plant tissues was accompanied by specific changes in the composition of lipids: the content of sulfolipids (SQDG) in chloroplasts declined; the content of monogalactosyl diacylglycerols (MGDG), digalactosyl diacylglycerols (DGDG) and phosphatidyl glycerols (PG) in chloroplasts and mitochondria grew after an hour of copper exposure; and the content of all the lipids except phosphatidic acids (PA) decreased after 3 h of exposure. The decline in the content of phosphatidyl cholines (PC) was first observed in the membranes of microsomes (after an hour of exposure) and later in the membranes of chloroplasts and mitochondria (after 3-6 h of exposure). The experiments with incorporation of [2-(14)C]sodium acetate into fatty acids of polar lipids showed that in parallel with lipid destruction, there took place an intensive and specific renewal of the lipid pool of subcellular membrane fractions.
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Affiliation(s)
- Olga A Rozentsvet
- Institute of Ecology of the Volga Basin Russian Academy of Science, Komzin's Str. 10, Togliatti 445003, Russia
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Sood A, Uniyal PL, Prasanna R, Ahluwalia AS. Phytoremediation potential of aquatic macrophyte, Azolla. AMBIO 2012; 41:122-37. [PMID: 22396093 PMCID: PMC3357840 DOI: 10.1007/s13280-011-0159-z] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 04/21/2011] [Accepted: 05/13/2011] [Indexed: 05/18/2023]
Abstract
Aquatic macrophytes play an important role in the structural and functional aspects of aquatic ecosystems by altering water movement regimes, providing shelter to fish and aquatic invertebrates, serving as a food source, and altering water quality by regulating oxygen balance, nutrient cycles, and accumulating heavy metals. The ability to hyperaccumulate heavy metals makes them interesting research candidates, especially for the treatment of industrial effluents and sewage waste water. The use of aquatic macrophytes, such as Azolla with hyper accumulating ability is known to be an environmentally friendly option to restore polluted aquatic resources. The present review highlights the phytoaccumulation potential of macrophytes with emphasis on utilization of Azolla as a promising candidate for phytoremediation. The impact of uptake of heavy metals on morphology and metabolic processes of Azolla has also been discussed for a better understanding and utilization of this symbiotic association in the field of phytoremediation.
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Affiliation(s)
- Anjuli Sood
- Department of Botany, University of Delhi, Delhi, India.
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Role of Aquatic Macrophytes in Biogeochemical Cycling of Heavy Metals, Relevance to Soil-Sediment Continuum Detoxification and Ecosystem Health. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/978-3-642-21408-0_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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Duman F, Ozturk F. Nickel accumulation and its effect on biomass, protein content and antioxidative enzymes in roots and leaves of watercress (Nasturtium officinale R. Br.). J Environ Sci (China) 2010; 22:526-32. [PMID: 20617728 DOI: 10.1016/s1001-0742(09)60137-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
In order to understand its response towards nickel stress, watercress (Nasturtium officinale R. Br.) was exposed to nickel (1-25 mg/L) for 1, 3, 5 and 7 days. The accumulation and translocation of nickel were determined and the influence of nickel on biomass, protein content and enzymatic antioxidants was examined for both roots and leaves. It was determined that N. officinale could accumulate appreciable amounts of Ni in both roots and leaves. Nickel accumulated particularly in the roots of plants. Biomass increased at low nickel concentrations but certain measurable change was not found at high concentrations. Under stress conditions the antioxidant enzymes were up-regulated compared to control. An increase in protein content and enzyme activities was observed at moderate exposure conditions followed by a decline at both roots and leaves. The maximum enzyme activities were observed at different exposure conditions. Our results showed that N. officinale had the capacity to overcome nickel-induced stress especially at moderate nickel exposure. Therefore, N. officinale may be used as a phytoremediator in moderately polluted aquatic ecosystems.
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Affiliation(s)
- Fatih Duman
- Faculty of Arts and Sciences, Department of Biology, Erciyes University, Kayseri 38039, Turkey.
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