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The Butterfly Effect: Mild Soil Pollution with Heavy Metals Elicits Major Biological Consequences in Cobalt-Sensitized Broad Bean Model Plants. Antioxidants (Basel) 2022; 11:antiox11040793. [PMID: 35453478 PMCID: PMC9028058 DOI: 10.3390/antiox11040793] [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: 03/31/2022] [Revised: 04/15/2022] [Accepted: 04/15/2022] [Indexed: 11/17/2022] Open
Abstract
Among the heavy metals (HMs), only cobalt induces a polymorphic response in Vicia faba plants, manifesting as chlorophyll morphoses and a ‘break-through’ effect resulting in the elevated accumulation of other HMs, which makes Co-pretreated broad bean plants an attractive model for investigating soil pollution by HMs. In this study, Co-sensitized V. faba plants were used to evaluate the long-term effect of residual industrial pollution by examining biochemical (H2O2, ascorbic acid, malondialdehyde, free proline, flavonoid, polyphenols, chlorophylls, carotenoids, superoxide dismutase) and molecular (conserved DNA-derived polymorphism and transcript-derived polymorphic fragments) markers after long-term exposure. HM-polluted soil induced a significantly higher frequency of chlorophyll morphoses and lower levels of nonenzymatic antioxidants in Co-pretreated V. faba plants. Both molecular markers effectively differentiated plants from polluted and control soils into distinct clusters, showing that HMs in mildly polluted soil are capable of inducing changes in DNA coding regions. These findings illustrate that strong background abiotic stressors (pretreatment with Co) can aid investigations of mild stressors (slight levels of soil pollution) by complementing each other in antioxidant content reduction and induction of DNA changes.
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Plant Cytogenetics in the Micronuclei Investigation-The Past, Current Status, and Perspectives. Int J Mol Sci 2022; 23:ijms23031306. [PMID: 35163228 PMCID: PMC8836153 DOI: 10.3390/ijms23031306] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/22/2022] [Accepted: 01/22/2022] [Indexed: 01/27/2023] Open
Abstract
Cytogenetic approaches play an essential role as a quick evaluation of the first genetic effects after mutagenic treatment. Although labor-intensive and time-consuming, they are essential for the analyses of cytotoxic and genotoxic effects in mutagenesis and environmental monitoring. Over the years, conventional cytogenetic analyses were a part of routine laboratory testing in plant genotoxicity. Among the methods that are used to study genotoxicity in plants, the micronucleus test particularly represents a significant force. Currently, cytogenetic techniques go beyond the simple detection of chromosome aberrations. The intensive development of molecular biology and the significantly improved microscopic visualization and evaluation methods constituted significant support to traditional cytogenetics. Over the past years, distinct approaches have allowed an understanding the mechanisms of formation, structure, and genetic activity of the micronuclei. Although there are many studies on this topic in humans and animals, knowledge in plants is significantly limited. This article provides a comprehensive overview of the current knowledge on micronuclei characteristics in plants. We pay particular attention to how the recent contemporary achievements have influenced the understanding of micronuclei in plant cells. Together with the current progress, we present the latest applications of the micronucleus test in mutagenesis and assess the state of the environment.
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Oubane M, Khadra A, Ezzariai A, Kouisni L, Hafidi M. Heavy metal accumulation and genotoxic effect of long-term wastewater irrigated peri-urban agricultural soils in semiarid climate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 794:148611. [PMID: 34225150 DOI: 10.1016/j.scitotenv.2021.148611] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/18/2021] [Accepted: 06/18/2021] [Indexed: 06/13/2023]
Abstract
Water scarcity is becoming an alarming issue in the Mediterranean countries. Therefore, using the treated wastewater in the irrigation is considered as a valuable option. However, uncontrolled and long-term irrigation by wastewater leads to human health and environmental damages, mainly related to some specific pollutants. The assessment of the availability and toxicity of the heavy metals after long term irrigation, under semi-arid climate, is not yet well documented. In this study, physicochemical properties, genotoxicity (Vicia faba micronucleus test), total and available (CaCl2-extractable) concentrations of Cr, Pb, Cu, Zn, Co and Cd in eight soils of peri-urban farms irrigated with wastewater were examined to evaluate their accumulation. The results indicated that long-term irrigation with wastewater induced significant increase of electrical conductivity, organic matter, calcium carbonate equivalent and nutrient availability. Total and available concentration of heavy metals were significantly higher (P < 0.05) in irrigated soils by wastewater. The total concentrations of Zn, Pb, Cu, Cr, Cd and Co in irrigated soils by wastewater at 0-40 cm depth were 85.69, 43.94, 34.86, 14.62, 9.94 and 7.17 mg kg-1, respectively. Furthermore, the increase of the available metal fraction in irrigated soils by wastewater at 0-40 cm depth followed the following order: Co (1270.1%) > Cd (914.5%) > Cu (881.5%) > Cr (471.2%) > Pb (230.8%) > Zn (223.8%). The micronucleus assay indicated significant increase of micronucleus frequencies (41.25‰, 35.48‰, 21.66‰, 16.23‰ and 13.62‰ respectively for P1, P2, P3, P4 and P7) which were higher than the negative control (0‰) and the irrigated soil by fresh water (3.29‰). The micronucleus induction was significantly correlated with the high available fraction of Cd, Co and Zn at P1, P2 and P7. The genotoxicity can be a powerful test to assess the ecological effects associated with the interactions of heavy metals with other pollutants.
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Affiliation(s)
- Mohamed Oubane
- Laboratory of Microbial Biotechnology, Agrosciences and Environment, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
| | - Ahmed Khadra
- Laboratory of Microbial Biotechnology, Agrosciences and Environment, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
| | - Amine Ezzariai
- African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), Laayoune 70000, Morocco
| | - Lamfeddal Kouisni
- African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), Laayoune 70000, Morocco; University Mohammed VI Polytechnic (UM6P), Agrobiosciences Department, Benguerir, Morocco
| | - Mohamed Hafidi
- Laboratory of Microbial Biotechnology, Agrosciences and Environment, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco; University Mohammed VI Polytechnic (UM6P), Agrobiosciences Department, Benguerir, Morocco.
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Ozyigit II, Arda L, Yalcin B, Yalcin IE, Ucar B, Hocaoglu-Ozyigit A. Lemna minor, a hyperaccumulator shows elevated levels of Cd accumulation and genomic template stability in binary application of Cd and Ni: a physiological and genetic approach. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 23:1255-1269. [PMID: 33662215 DOI: 10.1080/15226514.2021.1892586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, to determine whether having potential to be used as hyperaccumulator for Cd and Ni, numerous experiments were designed for conducting assessments for physiological and genotoxic changes along with defining possible alterations on mineral nutrient status of Lemna minor L. by applying Cd-Ni binary treatments (0, 100, 200 and 400 µM). Our study revealed that there were increases in the concentrations of B, Cr, Fe, K, Mg, and Mn whereas decreases were noticed in the concentrations of Na and Zn and the levels of Ca were inversely proportional to Cd-Ni applications showing tendency to increase at the low concentration and to decrease at the high concentration. Randomly Amplified Polymorphic DNA (RAPD) and Inter Simple Sequence Repeat (ISSR) analyses revealed that rather than band losses and new band formations, mostly intensity changes in the band profiles, and low polymorphism and high genomic template stability (GTS) were observed. Although, to date, L. minor was defined as an efficient hyperaccumulator/potential accumulator or competent phytoremedial agent by researchers. Our research revealed that L. minor showing high accumulation capability for Cd and having low polymorphism rate and high genomic template stability is a versatile hyperaccumulator, especially for Cd; therefore, highly recommended by us for decontamination of water polluted with Cd. NOVELTY STATEMENTMany studies have been focused on the effects of individual metal ions. However, heavy metal contaminants usually exist as their mixtures in natural aquatic environments. Especially, Cd and Ni coexist in industrial wastes.In this study, the accumulation properties of Lemna minor for both Cd and Ni were investigated and the effects of Cd and Ni on the bioaccumulation of B, Ca, Cu, Fe, Mg, K, Mn, Na, Pb and Zn in L. minor were also determined. This study furthermore aimed to assess the genotoxic effects of Cd and Ni found in being extended concentrations on DNA using the Randomly Amplified Polymorphic DNA-Polymerase Chain Reaction (RAPD-PCR) method.
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Affiliation(s)
- Ibrahim Ilker Ozyigit
- Department of Biology, Faculty of Arts & Sciences, Marmara University, Istanbul, Turkey
- Department of Biology, Faculty of Sciences, Kyrgyz-Turkish Manas University, Bishkek, Kyrgyzstan
| | - Lutfi Arda
- Department of Mechatronics Engineering, Faculty of Engineering and Natural Sciences, Bahcesehir University, Istanbul, Besiktas, Turkey
| | - Bestenur Yalcin
- Program of Medical Laboratory Techniques, Vocational School of Health Services, Bahcesehir University, Istanbul, Besiktas, Turkey
| | - Ibrahim Ertugrul Yalcin
- Department of Civil Engineering, Faculty of Engineering and Natural Sciences, Bahcesehir University, Istanbul, Besiktas, Turkey
| | - Bihter Ucar
- Department of Biology, Faculty of Arts & Sciences, Marmara University, Istanbul, Turkey
| | - Asli Hocaoglu-Ozyigit
- Department of Biology, Faculty of Arts & Sciences, Marmara University, Istanbul, Turkey
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Hu CY, Cheng HY, Yao XM, Li LZ, Liu HW, Guo WQ, Yan LS, Fu JL. Biodegradation and decolourization of methyl red by Aspergillus versicolor LH1. Prep Biochem Biotechnol 2020; 51:642-649. [PMID: 33226883 DOI: 10.1080/10826068.2020.1848868] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Azo dyes constitute a significant environmental burden due to its toxicity, carcinogenicity, and hard biodegradation. The report here is focused on the decolorization and degradation treatment of azo dye methyl red (MR). Decolorization of MR using Aspergillus versicolor LH1 isolated from activated sludge was investigated. The maximum decolorization rate of 92.3% was obtained under the optimized conditions of sucrose as carbon source, 5d incubation age, pH 6.0, 140 mg/L initial concentration of MR and 2.5 g/L initial concentration of NaNO3. Biodegradation products of MR were investigated using HPLC-MS, FTIR, and GC-MS assays. It was revealed the three bonds of -C-N = in MR aromatic nucleus were disrupted, and benzoic acid was detected. Micronucleus test with Glycine max L. and Vicia faba L. demonstrated that MCN‰ (micronucleus permillage) of MR metabolites was less than MR solution. These findings provided evidence that A. versicolor LH1 is a candidate for MR degradation in industrial wastewater treatment.
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Affiliation(s)
- Cui Ying Hu
- College of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, PR China
| | - Hong Ying Cheng
- College of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, PR China
| | - Xue Mei Yao
- College of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, PR China
| | - Liang Zhi Li
- College of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, PR China
| | - Heng Wei Liu
- College of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, PR China
| | - Wei Qiang Guo
- College of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, PR China
| | - Li Shi Yan
- College of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, PR China
| | - Jiao Long Fu
- College of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, PR China
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