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Shahzad A, Zahra A, Li HY, Qin M, Wu H, Wen MQ, Ali M, Iqbal Y, Xie SH, Sattar S, Zafar S. Modern perspectives of heavy metals alleviation from oil contaminated soil: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 282:116698. [PMID: 38991309 DOI: 10.1016/j.ecoenv.2024.116698] [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: 03/21/2024] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 07/13/2024]
Abstract
Heavy metal poisoning of soil from oil spills causes serious environmental problems worldwide. Various causes and effects of heavy metal pollution in the soil environment are discussed in this article. In addition, this study explores new approaches to cleaning up soil that has been contaminated with heavy metals as a result of oil spills. Furthermore, it provides a thorough analysis of recent developments in remediation methods, such as novel nano-based approaches, chemical amendments, bioremediation, and phytoremediation. The objective of this review is to provide a comprehensive overview of the removal of heavy metals from oil-contaminated soils. This review emphasizes on the integration of various approaches and the development of hybrid approaches that combine various remediation techniques in a synergistic way to improve sustainability and efficacy. The study places a strong emphasis on each remediation strategy that can be applied in the real-world circumstances while critically evaluating its effectiveness, drawbacks, and environmental repercussions. Additionally, it discusses the processes that reduce heavy metal toxicity and improve soil health, taking into account elements like interactions between plants and microbes, bioavailability, and pollutant uptake pathways. Furthermore, the current study suggests that more research and development is needed in this area, particularly to overcome current barriers, improve our understanding of underlying mechanisms, and investigate cutting-edge ideas that have the potential to completely transform the heavy metal clean up industry.
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Affiliation(s)
- Asim Shahzad
- College of Geography and Environmental Sciences, Henan University Kaifeng, China.
| | - Atiqa Zahra
- Department of Botany, Mohi-ud-Din Islamic University, Nerian Sharif, AJK, Pakistan.
| | - Hao Yang Li
- College of Geography and Environmental Sciences, Henan University Kaifeng, China.
| | - Mingzhou Qin
- College of Geography and Environmental Sciences, Henan University Kaifeng, China.
| | - Hao Wu
- College of Geography and Environmental Sciences, Henan University Kaifeng, China.
| | - Mei Qi Wen
- College of Geography and Environmental Sciences, Henan University Kaifeng, China.
| | - Mushtaque Ali
- State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, Kaifeng, China.
| | - Younas Iqbal
- National Demonstration Centre for Environmental and Planning, College of Geography and Environmental Sciences, Henan University, Kaifeng, China.
| | - Shao Hua Xie
- College of Geography and Environmental Sciences, Henan University Kaifeng, China.
| | - Shehla Sattar
- Department of environmental sciences, University of Swabi, Pakistan.
| | - Sadia Zafar
- Department of Botany, Division of Science and Technology, University of Education, Lahore, Punjab 54770, Pakistan.
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Zhao Y, Naeth MA, Wilkinson SR, Dhar A. Phytoremediation of metals in oil sands process affected water by native wetland species. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 282:116732. [PMID: 39018733 DOI: 10.1016/j.ecoenv.2024.116732] [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: 06/05/2024] [Revised: 07/08/2024] [Accepted: 07/11/2024] [Indexed: 07/19/2024]
Abstract
Process affected water and other industrial wastewaters are a major environmental concern. During oil sands mining, large amounts of oil sands process affected water (OSPW) are generated and stored in ponds until reclaimed and ready for surface water discharge. While much research has focused on organics in process waters, trace metals at high concentrations may also pose environmental risks. Phytoremediation is a cost effective and sustainable approach that employs plants to extract and reduce contaminants in water. The research was undertaken in mesocosm scale constructed wetlands with plants exposed to OSPW for 60 days. The objective was to screen seven native emergent wetland species for their ability to tolerate high metal concentrations (arsenic, cadmium, copper, chromium, copper, nickel, selenium, zinc), and then to evaluate the best performing species for OSPW phytoremediation. All native plant species, except Glyceria grandis, tolerated and grew in OSPW. Carex aquatilis (water sedge), Juncus balticus (baltic rush), and Typha latifolia (cattail) had highest survival and growth, and had high metal removal efficiencies for arsenic (81-87 %), chromium (78-86 %), and cadmium (74-84 %), relative to other metals; and greater than 91 % of the dissolved portions were removed. The native plant species were efficient accumulators of all metals, as demonstrated by high root and shoot bioaccumulation factors; root accumulation was greater than shoot accumulation. Translocation factor values were greater than one for Juncus balticus (chromium, zinc) and Carex aquatilis (cadmium, chromium, cobalt, nickel). The results demonstrate the potential suitability of these species for phytoremediation of a number of metals of concern and could provide an effective and environmentally sound remediation approach for wastewaters.
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Affiliation(s)
- Yihan Zhao
- Department of Renewable Resources, University of Alberta, Edmonton, AB T6G 2H1, Canada.
| | - M Anne Naeth
- Department of Renewable Resources, University of Alberta, Edmonton, AB T6G 2H1, Canada.
| | - Sarah R Wilkinson
- Department of Renewable Resources, University of Alberta, Edmonton, AB T6G 2H1, Canada.
| | - Amalesh Dhar
- Department of Renewable Resources, University of Alberta, Edmonton, AB T6G 2H1, Canada.
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Sun L, Gao G, Sun Y, Yang S, Qin Q, Ye J, Xue Y. Appropriate sulfur fertilization in contaminated soil enhanced the cadmium uptake by hyperaccumulator Sedum alfredii Hance. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 283:116870. [PMID: 39137467 DOI: 10.1016/j.ecoenv.2024.116870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 08/07/2024] [Accepted: 08/09/2024] [Indexed: 08/15/2024]
Abstract
The biogeochemical processes of sulfur and heavy metals in the environment are closely related to each other. We investigated the influence of sulfur addition on hyperaccumulator Sedum alfredii Hance growth, cadmium (Cd) accumulation, soil Cd bioavailability, soil bacterial communities and plant transcriptome responses. The results showed that an appropriate rate of sulfur addition (1.0 or 2.5 g/kg) enhanced the growth of Sedum alfredii Hance plants as well as their accumulation of Cd. A high rate of sulfur addition (5.0 or 10.0 g/kg) causes toxicity to Sedum alfredii Hance plants. The application of an appropriate amount of sulfur to the soil increased the abundance of sulfur-oxidizing bacteria such as Sulfuriferula and Thiobacillus; acid-fast bacillus such as Alicyclobacillus; and cadmium-tolerant bacteria such as Bacillus and Rhodanobacter. This led to a decrease in pH and an increase in bioavailable Cd in the soil. RNA sequencing revealed that the addition of sulfur to soils led to the up regulation of most of the differentially expressed genes (DEGs) involved in "photosynthesis" and "photosynthesis, light reaction" in Sedum alfredii Hance leaves. Moreover, the "plant hormone signal transduction" pathway was significantly enriched with sulfur addition. Sulfur assimilation in Sedum alfredii Hance plants may promote photosynthesis and hormone synthesis, leading to Cd tolerance in these plants. Our study revealed that sulfur fertilization enhanced the efficiency of Cd phytoremediation in Sedum alfredii Hance plants.
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Affiliation(s)
- Lijuan Sun
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai 201403, China; Key Laboratory of Low-carbon Green Agriculture in Southeastern China, Ministry of Agriculture and Rural Affairs, Shanghai 201403, China; Shang Hai Rightway Environmental Protection Technology Co.,Ltd, Shanghai 200131, China
| | - Guangkuo Gao
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Yafei Sun
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai 201403, China; Key Laboratory of Low-carbon Green Agriculture in Southeastern China, Ministry of Agriculture and Rural Affairs, Shanghai 201403, China
| | - Shiyan Yang
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai 201403, China; Key Laboratory of Low-carbon Green Agriculture in Southeastern China, Ministry of Agriculture and Rural Affairs, Shanghai 201403, China
| | - Qin Qin
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai 201403, China; Key Laboratory of Low-carbon Green Agriculture in Southeastern China, Ministry of Agriculture and Rural Affairs, Shanghai 201403, China
| | - Jing Ye
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Yong Xue
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai 201403, China; Key Laboratory of Low-carbon Green Agriculture in Southeastern China, Ministry of Agriculture and Rural Affairs, Shanghai 201403, China.
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Li M, Heng Q, Hu C, Wang Z, Jiang Y, Wang X, He X, Yong JWH, Dawoud TM, Rahman SU, Fan J, Zhang Y. Phytoremediation efficiency of poplar hybrid varieties with diverse genetic backgrounds in soil contaminated by multiple toxic metals (Cd, Hg, Pb, and As). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 283:116843. [PMID: 39128449 DOI: 10.1016/j.ecoenv.2024.116843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 08/01/2024] [Accepted: 08/04/2024] [Indexed: 08/13/2024]
Abstract
Fifteen poplar varieties were used in a field trial to investigate the phytoremediation efficiency, stress resistance, and wood property of poplar hybrid varieties with diverse genetic backgrounds under the composite pollution of heavy metals. The coefficient of variation and clone repeatability for growth traits and Cd concentration were large. The Cd accumulation of poplar varieties 107 and QHQ reached 1.9 and 1.7 mg, respectively, followed by QHB, Ti, 69, and Pa, in which Cd accumulation reached 1.3 mg. Most of the intra-specific hybrid varieties (69, QH1, SL4, T3, and ZL46) had low Cd concentrations and small biomass, resulting in weak Cd accumulation and low phytoremediation efficiency for Cd-polluted soil. By contrast, the inter-sectional and inter-specific hybrid varieties exhibited better growth performance and accumulated higher concentrations of heavy metals than the intra-specific hybrids. The bioconcentration factor and translocation factor of Hg, As, and Pb were less than 1, indicating that poplars have low phytoremediation efficiency for these heavy metals. The hybrids between section Aigeiros and Tacamahaca (QHQ and QHB) and the inter-specific hybrid 107 within section Aigeiros were more resistant to composite heavy metal stress than the other poplar varieties were partially because of their high levels of free proline that exceeded 93 μg·g-1 FW. According to the correlation analysis of the concentrations of the different heavy metals, the poplar roots absorbed different heavy metals in a cooperative manner, indicating that elite poplar varieties with superior capacity for accumulating diverse heavy metals can be bred feasibly. Compared with the intra-specific hybrid varieties, the inter-sectional (QHQ and QHB) and inter-specific (107) hybrid varieties had higher pollution remediation efficiency, larger biomass, higher cellulose content, and lower lignin content, which is beneficial for pulpwood. Therefore, breeding and extending inter-sectional (QHQ and QHB) and inter-specific hybrid varieties can improve the phytoremediation of composite pollution.
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Affiliation(s)
- Mengge Li
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qimeng Heng
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chaobo Hu
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhiyong Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yawei Jiang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xintong Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xuelian He
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jean Wan Hong Yong
- Department of Biosystems and Technology, Swedish University of Agricultural Science, Alanrp, Sweden.
| | - Turki M Dawoud
- Department of Botany and Microbiology, College of Science, King Saud University, P. O. BOX 2455, Riyadh 11451, Saudi Arabia
| | - Siddiq Ur Rahman
- Department of Computer Science and Bioinformatics, Khushal Khan Khattak University, Karak, Khyber Pakhtunkhwa 27200, Pakistan
| | - Junfeng Fan
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Yi Zhang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Bu A, Yao G, Zhou C, Mao Z, Liu B, Ma J, Fang X, Liu D, Ye Z. Effect of AC electric field on enhancing phytoremediation of Cd-contaminated soils in different pH soils. Sci Rep 2024; 14:18035. [PMID: 39098964 PMCID: PMC11298512 DOI: 10.1038/s41598-024-68671-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 07/26/2024] [Indexed: 08/06/2024] Open
Abstract
To increase the efficiency of phytoremediation to clean up heavy metals in soil, assisted with alternating current (AC) electric field technology is a promising choice. Our experiments utilized the hyperaccumulator Sedum alfredii Hance and the fast-growing, high-biomass willow (Salix sp.). We investigated the efficiency of AC field combined with S. alfredii-willow intercropping for removing Cd from soils with different pH values. In the AC electric field treatment with S. alfredii-willow intercropping, the available Cd content in acidic soil increased by 50.00% compared to the control, and in alkaline soil, the increase was 100.00%. Furthermore, AC electric field promoted Cd uptake by plants in both acidic and alkaline soils, with Cd accumulation in the aboveground increased by 20.52% (P < 0.05) and 11.73%, respectively. In conclusion, the integration of AC electric fields with phytoremediation demonstrates significant favorable effectiveness.
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Affiliation(s)
- Aiai Bu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
| | - Guihua Yao
- Jiashan County Agricultural and Rural Burean, Zhejiang, 314000, Jiaxing, China
| | - Chuikang Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
| | - Zhansheng Mao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
| | - Bo Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
| | - Jiawei Ma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
| | - Xianzhi Fang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
| | - Dan Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
| | - Zhengqian Ye
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China.
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China.
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Shen X, Sun T, Dai M, Aslam MMA, Peng C. Performance and mechanistic study of biochar and magnesium-enhanced phytoremediation in cadmium-contaminated soil by alfalfa. CHEMOSPHERE 2024; 362:142737. [PMID: 38950747 DOI: 10.1016/j.chemosphere.2024.142737] [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: 03/21/2024] [Revised: 06/26/2024] [Accepted: 06/28/2024] [Indexed: 07/03/2024]
Abstract
Recently, phytoremediation has been regarded as a green and environment friendly technique to treat metals contaminated soils. Thus, in this study, pot experiments were designed to investigate the combine effects of biochar and magnesium (MPs) to purify cadmium (Cd)-contaminated soils by Medicago sativa L. (alfalfa). The results showed that the combined use of biochar and Mg significantly increased the accumulation of Cd and promoted the transport of Cd from root to shoot in alfalfa, simultaneously. Importantly, the combined use of biochar and Mg could increase the accumulation of Cd in shoot and whole plant (shoot + root) of alfalfa up-to 59.1% and 23.1%, respectively. Moreover, the enhancement mechanism can be analyzed from several aspects. Firstly, the photosynthesis was enhanced, which was beneficial to plant growth. The product of photosynthesis provided energy for uptake and transport of Cd. Meanwhile, its transport in phloem could promote the transport of Cd. Secondly, the enhancement of antioxidant capacity of alfalfa effectively protected the membrane structure of alfalfa, which indicated that Cd could enter alfalfa from the channel on the cell membrane. Lastly, the chemical form of Cd and microbial community structure in soil were changed. Overall, these changes reduced the Cd toxicity in soil, enhanced the resistance capability of alfalfa, increased the Cd uptake by alfalfa and promoted the growth of alfalfa. Thus, the obtained results suggested that the combined use of biochar and Mg is an effective approach to enhance phytoremediation performance for purifying Cd-contaminated soils.
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Affiliation(s)
- Xing Shen
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, 241000, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Taotao Sun
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, 241000, China; Observation and Research Station of Seawater Intrusion and Soil Salinization, Laizhou Bay, Ministry of Natural Resources, Qingdao, Shandong Province, 266061, China
| | - Min Dai
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing, 526061, China
| | - Mian M Ahson Aslam
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, 241000, China; Observation and Research Station of Seawater Intrusion and Soil Salinization, Laizhou Bay, Ministry of Natural Resources, Qingdao, Shandong Province, 266061, China
| | - Changsheng Peng
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, 241000, China; Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing, 526061, China.
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Bantan RA, Ghandour IM, El-Kahawy RM, Aljahdali MH, Althagafi AA, Al-Mur BA, Quicksall AN. Environmental assessment of toxic heavy metals in bottom sediments of the Sharm Obhur, Jeddah, Saudi Arabia. MARINE POLLUTION BULLETIN 2024; 205:116675. [PMID: 38972221 DOI: 10.1016/j.marpolbul.2024.116675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/24/2024] [Accepted: 06/28/2024] [Indexed: 07/09/2024]
Abstract
The concentrations, spatial distributions, pollution level, and health risks of heavy metals in sediments of the Sharm Obhur, Northern Jeddah, Saudi Arabia were evaluated. Average concentrations were found to be: Cr > Zn > Ni > Cu > As>Pb with the highest concentrations found near the head of the sharm, and decreasing towards the mouth. Environmental indices, together with the statistical analyses, showed that the sharm experiences a low to moderate degree of pollution. Sampling sites with heavy metal contamination are concentrated near the head and the southern coast of the sharm, where intensive human activities associated with a boat dock, construction, and recreation are common. The mean carcinogenic risk (CR) values of As, Cr and Ni are at permissible level suggesting unlikely adverse impacts of heavy metals on human health. Despite acceptable CR values; however, serious non-carcinogenic and carcinogenic health threats from metals may yet be an issue particularly for sensitive populations such as children.
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Affiliation(s)
- Rashad A Bantan
- Department of Marine Geology, Faculty of Marine Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
| | - Ibrahim M Ghandour
- Department of Marine Geology, Faculty of Marine Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Department of Geology, Faculty of Sciences, Tanta University, Tanta 31527, Egypt.
| | - Ramadan M El-Kahawy
- Geology Department, Faculty of Science, Cairo University, Cairo 12613, Egypt.
| | - Mohammed H Aljahdali
- Department of Marine Geology, Faculty of Marine Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Anas A Althagafi
- Department of Marine Geology, Faculty of Marine Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Bandar A Al-Mur
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
| | - Andrew N Quicksall
- Department of Civil and Environmental Engineering, Southern Methodist University, Dallas, TX, USA.
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Xiao J, Wang D, Sinchan B, Mushinski R, Jin D, Deng Y. Response patterns of the microbiome during hexavalent chromium remediation by Tagetes erecta L. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 935:173413. [PMID: 38788956 DOI: 10.1016/j.scitotenv.2024.173413] [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: 02/06/2024] [Revised: 05/16/2024] [Accepted: 05/19/2024] [Indexed: 05/26/2024]
Abstract
Chromium pollution, particularly hexavalent chromium [Cr(VI)], may threaten the environment and human health. This study investigated the potential of Tagetes erecta L. (Aztec marigold) for phytoremediation of soil contaminated with Cr(VI), and focused on the effects of varying concentrations of Cr(VI) on both the physicochemical properties of soil and microbiome of Tagetes erecta L. We observed that Tagetes erecta L. showed tolerance to Cr(VI) stress and maintained normal growth under these conditions, as indicated by bioconcentration factors of 0.33-0.53 in shoots and 0.39-0.70 in roots. Meanwhile, the structure and diversity of bacterial communities were significantly affected by Cr(VI) pollution. Specifically, Cr(VI) had a more significant effect on the microbial community structure in the endophytic of Tagetes erecta L. than in the rhizosphere (p < 0.05). The genera Devosia and Methylobacillus were positively correlated with Cr(VI) concentrations. Biomarkers such as Bacilli and Pseudonocardia were identified under the different Cr(VI)-contaminated treatments using LEfSe. In addition, the interaction and stability of the endophytic microbiome were enhanced under Cr(VI) stress. This study explored the interactions between heavy metals, microorganisms, and plants, providing valuable insights for developing in situ bioremediation of Cr(VI)-contaminated soils.
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Affiliation(s)
- Juanjuan Xiao
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Deying Wang
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | - Banerjee Sinchan
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | - Ryan Mushinski
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | - Decai Jin
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Ye Deng
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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Fu Y, Lin Y, Deng Z, Chen M, Yu G, Jiang P, Zhang X, Liu J, Yang X. Transcriptome and metabolome analysis reveal key genes and metabolic pathway responses in Leersia hexandra Swartz under Cr and Ni co-stress. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134590. [PMID: 38762990 DOI: 10.1016/j.jhazmat.2024.134590] [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: 11/28/2023] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 05/21/2024]
Abstract
Phytoremediation, an eco-friendly approach for mitigating heavy metal contamination, is reliant on hyperaccumulators. This study focused on Leersia hexandra Swart, a known chromium (Cr) hyperaccumulator with demonstrated tolerance to multiple heavy metals. Our objective was to investigate its response to simultaneous Cr and nickel (Ni) stress over 12 days. Results from physiological experiments demonstrated a significant increase in the activities of antioxidant enzymes (APX, SOD, CAT) and glutathione (GSH) content under Cr and Ni stress, indicating enhanced antioxidant mechanisms. Transcriptome analysis revealed that stress resulted in the differential expression of 27 genes associated with antioxidant activity and metal binding, including APX, SOD, CAT, GSH, metallothionein (MT), and nicotinamide (NA). Among them, twenty differentially expressed genes (DEGs) related to GSH metabolic cycle were identified. Notably, GSTU6, GND1, and PGD were the top three related genes, showing upregulation with fold changes of 4.57, 6.07, and 3.76, respectively, indicating their crucial role in metal tolerance. The expression of selected DEGs was validated by quantitative real-time PCR, confirming the reliability of RNA-Seq data. Metabolomic analysis revealed changes in 1121 metabolites, with amino acids, flavonoids, and carbohydrates being the most affected. Furthermore, glucosinolate biosynthesis and amino acid biosynthesis pathways were represented in the KEGG pathway of differentially expressed metabolites (DEMs). This study provides insights into the tolerance mechanisms of L. hexandra under the co-stress of Cr and Ni, offering a new perspective for enhancing its remediation performance.
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Affiliation(s)
- Yuexin Fu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Yi Lin
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Zhenliang Deng
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Mouyixing Chen
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Guo Yu
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Pingping Jiang
- College of Earth Sciences, Guilin University of Technology, Guilin 541004, China; Guangxi Key Laboratory of Exploration for Hidden Metallic Ore Deposits, Guilin 541004, China.
| | - Xuehong Zhang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China; Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China.
| | - Jie Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China; Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
| | - Xuemeng Yang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
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10
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Rob MM, Akhter D, Islam T, Bhattacharjya DK, Shoaib Khan MS, Islam F, Chen J. Copper stress in rice: Perception, signaling, bioremediation and future prospects. JOURNAL OF PLANT PHYSIOLOGY 2024; 302:154314. [PMID: 39033671 DOI: 10.1016/j.jplph.2024.154314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 07/10/2024] [Accepted: 07/12/2024] [Indexed: 07/23/2024]
Abstract
Copper (Cu) is an indispensable micronutrient for plants, animals, and microorganisms and plays a vital role in different physiological processes. However, excessive Cu accumulation in agricultural soil, often through anthropogenic action, poses a potential risk to plant health and crop productivity. This review article provided a comprehensive overview of the available information regarding Cu dynamics in agricultural soils, major sources of Cu contamination, factors influencing its mobility and bioavailability, and mechanisms of Cu uptake and translocation in rice plants. This review examined the impact of Cu toxicity on the germination, growth, and photosynthesis of rice plants. It also highlighted molecular mechanisms underlying Cu stress signaling and the plant defense strategy, involving chelation, compartmentalization, and antioxidant responses. This review also identified significant areas that need further research, such as Cu uptake mechanism in rice, Cu signaling process, and the assessment of Cu-polluted paddy soil and rice toxicity under diverse environmental conditions. The development of rice varieties with reduced Cu accumulation through comprehensive breeding programs is also necessary. Regulatory measures, fungicide management, plant selection, soil and environmental investigation are recommended to prevent Cu buildup in agricultural lands to achieve sustainable agricultural goals.
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Affiliation(s)
- Md Mahfuzur Rob
- Department of Horticulture, Faculty of Agriculture, Sylhet Agricultural University, Sylhe, 3100, Bangladesh
| | - Delara Akhter
- Department of Genetics and Plant Breeding, Sylhet Agricultural University, Sylhet, 3100, Bangladesh
| | - Tariqul Islam
- Department of Agricultural Construction and Environmental Engineering, Sylhet Agricultural University, Sylhet, 3100, Bangladesh
| | - Debu Kumar Bhattacharjya
- Department of Biochemistry, Sher-e-Bangla Agricultural University, Sherebangla Nagar, Dhaka, 1207, Bangladesh
| | | | - Faisal Islam
- International Genome Center, Jiangsu University, Zhenjiang, 212013, China.
| | - Jian Chen
- International Genome Center, Jiangsu University, Zhenjiang, 212013, China.
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11
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Abdelnour SA, Naiel MAE, Said MB, Alnajeebi AM, Nasr FA, Al-Doaiss AA, Mahasneh ZMH, Noreldin AE. Environmental epigenetics: Exploring phenotypic plasticity and transgenerational adaptation in fish. ENVIRONMENTAL RESEARCH 2024; 252:118799. [PMID: 38552831 DOI: 10.1016/j.envres.2024.118799] [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: 11/28/2023] [Revised: 03/06/2024] [Accepted: 03/25/2024] [Indexed: 04/04/2024]
Abstract
Epigenetics plays a vital role in the interaction between living organisms and their environment by regulating biological functions and phenotypic plasticity. Considering that most aquaculture activities take place in open or natural habitats that are vulnerable to environmental changes. Promising findings from recent research conducted on various aquaculture species have provided preliminary evidence suggesting a link between epigenetic mechanisms and economically valuable characteristics. Environmental stressors, including climate changes (thermal stress, hypoxia, and water salinity), anthropogenic impacts such as (pesticides, crude oil pollution, nutritional impacts, and heavy metal) and abiotic factors (infectious diseases), can directly trigger epigenetic modifications in fish. While experiments have confirmed that many epigenetic alterations caused by environmental factors have plastic responses, some can be permanently integrated into the genome through genetic integration and promoting rapid transgenerational adaptation in fish. These environmental factors might cause irregular DNA methylation patterns in genes related to many biological events leading to organs dysfunction by inducing alterations in genes related to oxidative stress or apoptosis. Moreover, these environmental issues alter DNA/histone methylation leading to decreased reproductive competence. This review emphasizes the importance of understanding the effects of environmentally relevant issues on the epigenetic regulation of phenotypic variations in fish. The goal is to expand our knowledge of how epigenetics can either facilitate or hinder species' adaptation to these adverse conditions. Furthermore, this review outlines the areas that warrant further investigation in understanding epigenetic reactions to various environmental issues.
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Affiliation(s)
- Sameh A Abdelnour
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, 44519, Egypt.
| | - Mohammed A E Naiel
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, 44519, Egypt
| | - Mourad Ben Said
- Laboratory of Microbiology, National School of Veterinary Medicine of Sidi Thabet, University of Manouba, Manouba, 2010, Tunisia; Department of Basic Sciences, Higher Institute of Biotechnology of Sidi Thabet, University of Manouba, Manouba, 2010, Tunisia
| | - Afnan M Alnajeebi
- Department of Biochemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Fahd A Nasr
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Amin A Al-Doaiss
- Biology Department, College of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Zeinab M H Mahasneh
- Department of Animal Production, School of Agriculture, The University of Jordan, Amman, 11942, Jordan
| | - Ahmed E Noreldin
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, Egypt
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12
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Chen Z, Liu Q, Chen D, Wu Y, Hamid Y, Lin Q, Zhang S, Feng Y, He Z, Yin X, Yang X. Enhancing the phytoextraction efficiency of heavy metals in acidic and alkaline soils by Sedum alfredii Hance: A study on the synergistic effect of plant growth regulator and plant growth-promoting bacteria. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 932:173029. [PMID: 38719039 DOI: 10.1016/j.scitotenv.2024.173029] [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: 03/18/2024] [Revised: 04/23/2024] [Accepted: 05/04/2024] [Indexed: 05/12/2024]
Abstract
Plant growth regulators (PGR) and plant growth-promoting bacteria (PGPB) have the potential in phytoremediation of heavy metals (HMs) contaminated soils. However, their sole application may not yield the optimal results, thus necessitating the combined application. The present study aimed to enhance the phytoremediation efficiency of Sedum alfredii Hance (S. alfredii) in acidic and alkaline soils through the combination of PGR (Brassinolide, BR) and PGPB (Pseudomonas fluorescens, P. fluorescens). The combination of BR and P. fluorescens (BRB treatment) effectively increased the removal efficiency of S. alfredii for Cd, Pb, and Zn by 355.2 and 155.3 %, 470.1 and 128.9 %, and 408.4 and 209.6 %, in acidic and alkaline soils, respectively. Moreover, BRB treatment led to a substantial increase in photosynthetic pigments contents and antioxidant enzymes activities, resulting in a remarkable increase in biomass (86.71 and 47.22 %) and dry mass (101.49 and 42.29 %) of plants grown in acidic and alkaline soils, respectively. Similarly, BRB treatment significantly elevated the Cd (109.4 and 71.36 %), Pb (174.9 and 48.03 %), and Zn levels (142.8 and 104.3 %) in S. alfredii shoots, along with cumulative accumulation of Cd (122.7 and 79.47 %), Pb (183.8 and 60.49 %), and Zn (150.7 and 117.9 %), respectively. In addition, the BRB treatment lowered the soil pH and DTPA-HMs contents, while augmenting soil enzymatic activities, thereby contributing soil microecology and facilitating the HMs absorption and translocation by S. alfredii to over-ground tissues. Furthermore, the evaluation of microbial community structure in phyllosphere and rhizosphere after remediation revealed the shift in microbial abundance. The combined treatment altered the principal effects on S. alfredii HMs accumulation from bacterial diversity to the soil HMs availability. In summary, our findings demonstrated that synergistic application of BR and P. fluorescens represents a viable approach to strengthen the phytoextraction efficacy of S. alfredii in varying soils.
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Affiliation(s)
- Zhiqin Chen
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qizhen Liu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Dan Chen
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yingjie Wu
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
| | - Yasir Hamid
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qiang Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Shijun Zhang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, 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
| | - Zhenli He
- University of Florida, Institute of Food and Agricultural Sciences, Department of Soil and Water Sciences, Indian River Research and Education Center, Fort Pierce, FL 34945, United States
| | - Xianyuan Yin
- Beautiful Rural Construction Center Quzhou District, Quzhou 324003, Zhejiang, 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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13
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Jalal A, Zhu D. A hypothetical model of phytoremediation for bioremediation of heavy metals toxicity in agricultural system. PLANT GROWTH REGULATION 2024. [DOI: 10.1007/s10725-024-01171-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 03/28/2024] [Indexed: 07/23/2024]
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14
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Li X, Shen X, Jiang W, Xi Y, Li S. Comprehensive review of emerging contaminants: Detection technologies, environmental impact, and management strategies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 278:116420. [PMID: 38701654 DOI: 10.1016/j.ecoenv.2024.116420] [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: 03/10/2024] [Revised: 04/20/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
Emerging contaminants (ECs) are a diverse group of unregulated pollutants increasingly present in the environment. These contaminants, including pharmaceuticals, personal care products, endocrine disruptors, and industrial chemicals, can enter the environment through various pathways and persist, accumulating in the food chain and posing risks to ecosystems and human health. This comprehensive review examines the chemical characteristics, sources, and varieties of ECs. It critically evaluates the current understanding of their environmental and health impacts, highlighting recent advancements and challenges in detection and analysis. The review also assesses existing regulations and policies, identifying shortcomings and proposing potential enhancements. ECs pose significant risks to wildlife and ecosystems by disrupting animal hormones, causing genetic alterations that diminish diversity and resilience, and altering soil nutrient dynamics and the physical environment. Furthermore, ECs present increasing risks to human health, including hormonal disruptions, antibiotic resistance, endocrine disruption, neurological effects, carcinogenic effects, and other long-term impacts. To address these critical issues, the review offers recommendations for future research, emphasizing areas requiring further investigation to comprehend the full implications of these contaminants. It also suggests increased funding and support for research, development of advanced detection technologies, establishment of standardized methods, adoption of precautionary regulations, enhanced public awareness and education, cross-sectoral collaboration, and integration of scientific research into policy-making. By implementing these solutions, we can improve our ability to detect, monitor, and manage ECs, reducing environmental and public health risks.
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Affiliation(s)
- Xingyu Li
- College of Science, Yunnan Agricultural University, Kunming 650201, China; Key Laboratory of Agricultural Emerging Contaminants Prevention and Control, Yunnan Agricultural University, Kunming 650201, China.
| | - Xiaojing Shen
- College of Science, Yunnan Agricultural University, Kunming 650201, China; Key Laboratory of Agricultural Emerging Contaminants Prevention and Control, Yunnan Agricultural University, Kunming 650201, China
| | - Weiwei Jiang
- College of Science, Yunnan Agricultural University, Kunming 650201, China; Key Laboratory of Agricultural Emerging Contaminants Prevention and Control, Yunnan Agricultural University, Kunming 650201, China
| | - Yongkai Xi
- College of Science, Yunnan Agricultural University, Kunming 650201, China; Key Laboratory of Agricultural Emerging Contaminants Prevention and Control, Yunnan Agricultural University, Kunming 650201, China
| | - Song Li
- College of Science, Yunnan Agricultural University, Kunming 650201, China; Key Laboratory of Agricultural Emerging Contaminants Prevention and Control, Yunnan Agricultural University, Kunming 650201, China.
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15
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Sharma P, Jha AB, Dubey RS. Addressing lanthanum toxicity in plants: Sources, uptake, accumulation, and mitigation strategies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172560. [PMID: 38641102 DOI: 10.1016/j.scitotenv.2024.172560] [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: 02/14/2024] [Revised: 04/06/2024] [Accepted: 04/16/2024] [Indexed: 04/21/2024]
Abstract
Lanthanum (La), the second most abundant rare earth element (REE) is emerging as an environmental issue, with the potential to impact ecosystems and human health. Major sources of soil contamination by La include agricultural, and industrial activities. Lanthanum is non-essential for plant growth but accumulates in various plant parts. The uptake of La by plants is intricately influenced by various factors such as soil pH, redox potential, cation exchange capacity, presence of organic acids and rhizosphere composition. These factors significantly impact the availability and absorption of La ions. Lanthanum impact on plants depends on soil characteristics, cultivated species, developmental stage, La concentration, treatment period, and growth conditions. Excessive La concentrations affect cell division, DNA structure, nutrient uptake, and photosynthesis and induce toxicity symptoms. Plants employ detoxification mechanisms like vacuolar sequestration, osmolyte synthesis, and antioxidant defense system. However, higher concentrations of La can overwhelm these defense mechanisms, leading to adverse effects on plant growth and development. Further, accumulation of La in plants increases the risk for human exposure. Strategies to mitigate La toxicity are, therefore, vital for ecosystem protection. The application of phytoremediation, supplementation, chelation, amendments, and biosorption techniques contributes to the mitigation of La toxicity. This review provides insights into La sources, uptake, toxicity, and alleviation strategies in plants. Identifying research gaps and discussing advancements aims to foster a holistic understanding and develop effective strategies for protecting plant health and ecosystem resilience against La contamination.
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Affiliation(s)
- Pallavi Sharma
- School of Environment and Sustainable Development, Central University of Gujarat, Sector-30, Gandhinagar 382030, Gujarat, India.
| | - Ambuj Bhushan Jha
- School of Life Sciences, Central University of Gujarat, Sector-30, Gandhinagar 382030, Gujarat, India
| | - Rama Shanker Dubey
- Central University of Gujarat, Sector-29, Gandhinagar 382030, Gujarat, India
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16
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Pathak HK, Chauhan PK, Seth CS, Dubey G, Upadhyay SK. Mechanistic and future prospects in rhizospheric engineering for agricultural contaminants removal, soil health restoration, and management of climate change stress. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172116. [PMID: 38575037 DOI: 10.1016/j.scitotenv.2024.172116] [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: 01/28/2024] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 04/06/2024]
Abstract
Climate change, food insecurity, and agricultural pollution are all serious challenges in the twenty-first century, impacting plant growth, soil quality, and food security. Innovative techniques are required to mitigate these negative outcomes. Toxic heavy metals (THMs), organic pollutants (OPs), and emerging contaminants (ECs), as well as other biotic and abiotic stressors, can all affect nutrient availability, plant metabolic pathways, agricultural productivity, and soil-fertility. Comprehending the interactions between root exudates, microorganisms, and modified biochar can aid in the fight against environmental problems such as the accumulation of pollutants and the stressful effects of climate change. Microbes can inhibit THMs uptake, degrade organic pollutants, releases biomolecules that regulate crop development under drought, salinity, pathogenic attack and other stresses. However, these microbial abilities are primarily demonstrated in research facilities rather than in contaminated or stressed habitats. Despite not being a perfect solution, biochar can remove THMs, OPs, and ECs from contaminated areas and reduce the impact of climate change on plants. We hypothesized that combining microorganisms with biochar to address the problems of contaminated soil and climate change stress would be effective in the field. Despite the fact that root exudates have the potential to attract selected microorganisms and biochar, there has been little attention paid to these areas, considering that this work addresses a critical knowledge gap of rhizospheric engineering mediated root exudates to foster microbial and biochar adaptation. Reducing the detrimental impacts of THMs, OPs, ECs, as well as abiotic and biotic stress, requires identifying the best root-associated microbes and biochar adaptation mechanisms.
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Affiliation(s)
- Himanshu K Pathak
- Department of Environmental Science, V.B.S. Purvanchal University, Jaunpur 222003, India
| | - Prabhat K Chauhan
- Department of Environmental Science, V.B.S. Purvanchal University, Jaunpur 222003, India
| | | | - Gopal Dubey
- Department of Environmental Science, V.B.S. Purvanchal University, Jaunpur 222003, India
| | - Sudhir K Upadhyay
- Department of Environmental Science, V.B.S. Purvanchal University, Jaunpur 222003, India.
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17
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Yaashikaa PR, Palanivelu J, Hemavathy RV. Sustainable approaches for removing toxic heavy metal from contaminated water: A comprehensive review of bioremediation and biosorption techniques. CHEMOSPHERE 2024; 357:141933. [PMID: 38615953 DOI: 10.1016/j.chemosphere.2024.141933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 03/18/2024] [Accepted: 04/05/2024] [Indexed: 04/16/2024]
Abstract
In this comprehensive study, highlights emerging environmentally friendly methods to eliminating hazardous heavy metals from contaminated water, with an emphasis on bioremediation and biosorption. Breakthroughs, such as the combination of biological remediation and nanotechnology to improve the elimination of metals effectiveness and the use of genetically modified microbes for targeted pollutant breakdown. Developing biosorption materials made from agricultural waste and biochar, this indicates interesting areas for future research and emphasizes the necessity of sustainable practices in tackling heavy metal contamination in water systems. There seems to be a surge in enthusiasm for the utilization of biological remediation and biosorption methods as sustainable and viable options for eliminating heavy metals from contaminated water in the past couple of decades. The present review intends to offer an in-depth review of the latest understanding and advances in the discipline of biological remediation methods like bioaccumulation, biofiltration, bio-slurping, and bio-venting. Biosorption is specifically explained and includes waste biomass as biosorbent with the removal mechanisms and the hindrances caused in the process are detailed. Advances in biosorption like microbes as biosorbents and the mechanism involved in it. Additionally, novel enhancement techniques like immobilization, genetic modification, and ultrasound-assisted treatment in microbial sorbent are clarified. However, the review extended with analyzing the future advances in the overall biological methods and consequences of heavy metal pollution.
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Affiliation(s)
- P R Yaashikaa
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, India 602105.
| | - Jeyanthi Palanivelu
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, India 602105
| | - R V Hemavathy
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, 602105, India
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18
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Ray I, Misra S, Chen M, Wang X, Das R. Entrapment of atmospheric particle bound heavy metals by ferns as evidenced by lead (Pb) isotope and MixSIAR: Implications for improving air quality. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:134014. [PMID: 38503208 DOI: 10.1016/j.jhazmat.2024.134014] [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: 01/04/2024] [Revised: 03/03/2024] [Accepted: 03/10/2024] [Indexed: 03/21/2024]
Abstract
Plant metal uptake can occur through both soil-root and atmospheric transfer from leaves. The latter holds potential implications for development of biofiltration systems. To explore this potential, it is crucial to understand entrapment capacity and metal sources within plants. As ferns absorb materials from atmosphere, this study focuses on two abundant fern species growing in densely populated and highly polluted regions of Eastern India. Gravimetric quantification, elemental concentration and Pb isotopic analyses were performed by segregating the ferns into distinct components: foliage dusts (loose dust (LD) and wax-bound dust (WD)) and plant tissue (leaves and roots). To understand metal sources, the study analyzes soil, and atmospheric particulates (PM10 and dust fall (DF)). Results indicate that, while LDs have soil dust influence, wax entraps atmospheric particulates and translocates them inside the leaves. Furthermore, roots demonstrate dissimilar isotopic ratios from soil, while displaying close association with atmospheric particulates. Isotopic composition and subsequent mixing model reveal dominant contribution from DF in leaves (53-73%) and roots (33-86%). Apart from DF, leaf Pb is sourced from PM10 (21-38%) with minimal contribution from soil (6-10%). Conversely, in addition to dominance from DF, roots source Pb primarily from soil (12-62%) with a meagre 2-8% contribution from PM10.
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Affiliation(s)
- Iravati Ray
- School of Environmental Studies, Jadavpur University, Kolkata, India.
| | - Sambuddha Misra
- Centre for Earth Sciences, Indian Institute of Sciences, Bangalore, India
| | - Mengli Chen
- Tropical Marine Science Institute, National University of Singapore, Singapore; Earth Observatory of Singapore, Nanyang Technological University, Singapore
| | - Xianfeng Wang
- Earth Observatory of Singapore, Nanyang Technological University, Singapore; Asian School of Environment, Nanyang Technological University, Singapore
| | - Reshmi Das
- School of Environmental Studies, Jadavpur University, Kolkata, India; Earth Observatory of Singapore, Nanyang Technological University, Singapore.
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19
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Deng J, Wang P, Xu Z, Hu T, Li D, Wei X, Chen C, Li Y, Zhang Y. Contaminated soil remediation with nano-FeS loaded lignin hydrogel: A novel strategy to produce safe rice grains while reducing cadmium in paddy field. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:133965. [PMID: 38471381 DOI: 10.1016/j.jhazmat.2024.133965] [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: 01/04/2024] [Revised: 02/21/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024]
Abstract
Cadmium (Cd) contamination in agricultural soil has been an elevated concern due to the high health risks associated with the transfer through the soil-food chain, particularly in the case of rice. Recently, there has numerous researches on the use of nanoparticle-loaded materials for heavy metal-polluted soil remediation, resulting in favorable outcomes. However, there has been limited research focus on the field-scale application and recovery. This study was aimed to validate the Cd reduction effect of the nano-FeS loaded lignin hydrogel composites (FHC) in mildly polluted paddies, and to propose a field-scale application method. Hence, a multi-site field experiment was conducted in southern China. After the application for 94-103 days, the FHC exhibited a high integrity and elasticity, with a recovery rate of 91.90%. The single-round remediation led to decreases of 0.42-31.72% in soil Cd content and 1.52-49.11% in grain Cd content. Additionally, this remediation technique did not adversely impact rice production. Consequently, applying FHC in the field was demonstrated to be an innovative, efficient, and promising remediation technology. Simultaneously, a strategy was proposed for reducing Cd levels while cultivating rice in mildly polluted fields using the FHC.
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Affiliation(s)
- Jianbin Deng
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Pu Wang
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Zhaoxin Xu
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Tian Hu
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Deyun Li
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Xiujiao Wei
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Chengyu Chen
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yongtao Li
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
| | - Yulong Zhang
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
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20
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Zunaidi AA, Lim LH, Metali F. Heavy metal tolerance and accumulation in the Brassica species ( Brassica chinensis var. parachinensis and Brassica rapa L.): A pot experiment. Heliyon 2024; 10:e29528. [PMID: 38655289 PMCID: PMC11036052 DOI: 10.1016/j.heliyon.2024.e29528] [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: 09/18/2023] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/26/2024] Open
Abstract
This study delves into the heavy metal tolerance and accumulation capabilities of Brassica chinensis var. parachinensis (B. chinensis) and Brassica rapa L. (B. rapa) in a pot experiment, specifically focusing on cadmium (Cd), chromium (Cr) and lead (Pb). Agricultural topsoils were spiked with varying concentrations of these heavy metals (0 mg/kg, 75 mg/kg, 150 mg/kg, 225 mg/kg and 300 mg/kg) for each element. The experiment involved cultivating 15 pots each of B. chinensis and B. rapa over 60 days. Results indicated that both Brassica species experienced delayed germination, with B. chinensis exhibiting a significant drop in germination percentage to 53 % at the highest concentration (300 mg/kg), while B. rapa showed a tendency for an increased germination percentage of up to 80 % at elevated metal concentrations; however, these differences were not statistically significant. Both B. chinensis and B. rapa demonstrated a stable decline in growth rate from 0.05 cm/day to 0.04 cm/day with increasing heavy metal concentrations, and the he reduction in relative growth rate was significant at the highest concentration compared to the control. The stress tolerance index revealed a significant decrease in plant heights for B. chinensis, in contrast to the stable performance of B. rapa, showcasing the tolerance of B. rapa to toxic conditions. Despite insignificant differences in fresh biomass due to metal treatments, B. chinensis consistently yielded higher biomass, yet it had a lower edible index due to its higher root biomass. Leaf areas increased significantly in both species at higher soil treatments, while root lengths remained unchanged, suggesting their resilience to elevated heavy metal concentrations. Analysis of plant tissues (leaves, stems and roots) using ICP-OES revealed that B. rapa accumulated the highest Cd concentration (864 mg/kg), whereas B. chinensis accumulated the highest Pb concentration (953 mg/kg) in root parts. Both species significantly accumulated Cr in roots, demonstrating a sequestration mechanism. These findings suggest that both species, particularly, B. rapa possess strong tolerance and accumulation capabilities for non-essential heavy metals, making them potential hyperaccumulators for green remediation techniques in toxic soil environments. Understanding the molecular mechanisms driving these responses and validating phytoremediation potential in real-world scenarios is essential for developing sustainable soil management practices.
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Affiliation(s)
- Adzrin Asikin Zunaidi
- Chemical Sciences Programme, Faculty of Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Lee Hoon Lim
- Chemical Sciences Programme, Faculty of Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Faizah Metali
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
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Chen M, Yu G, Qiu H, Jiang P, Zhong X, Liu J. Unveiling Metal Tolerance Mechanisms in Leersia hexandra Swartz under Cr/Ni Co-Pollution by Studying Endophytes and Plant Metabolites. Metabolites 2024; 14:231. [PMID: 38668359 PMCID: PMC11051720 DOI: 10.3390/metabo14040231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 04/12/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Heavy metal pollution poses significant environmental challenges, and understanding how plants and endophytic bacteria interact to mitigate these challenges is of utmost importance. In this study, we investigated the roles of endophytic bacteria, particularly Chryseobacterium and Comamonas, in Leersia hexandra Swartz (L. hexandra) in response to chromium and nickel co-pollution. Our results demonstrated the remarkable tolerance of Chryseobacterium and Comamonas to heavy metals, and their potential to become dominant species in the presence of co-pollution. We observed a close relationship between these endophytic bacteria and the significant differences in metabolites, particularly carbohydrates, flavonoids, and amino acids in L. hexandra. These findings shed light on the potential of endophytic bacteria to promote the production of aspartic acid and other metabolites in plants as a response to abiotic stressors. Furthermore, our study presents a new direction for plant and bioremediation strategies in heavy metal pollution and enhances our understanding of L. hexandra's mechanisms for heavy metal tolerance.
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Affiliation(s)
- Mouyixing Chen
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China; (M.C.); (H.Q.); (J.L.)
| | - Guo Yu
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China;
| | - Hui Qiu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China; (M.C.); (H.Q.); (J.L.)
| | - Pingping Jiang
- College of Earth Sciences, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Exploration for Hidden Metallic Ore Deposits, Guilin 541004, China
| | - Xuemei Zhong
- College of Earth Sciences, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Exploration for Hidden Metallic Ore Deposits, Guilin 541004, China
| | - Jie Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China; (M.C.); (H.Q.); (J.L.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
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Li Z, Huang Y, Zhu Z, Yu M, Cheng H, Shi H, Xiao Y, Song H, Zuo W, Zhou H, Wang S. Attempts to obtain clean biochar from hyperaccumulator through pyrolysis: Removal of heavy metals and transformation of phosphorus. JOURNAL OF HAZARDOUS MATERIALS 2024; 468:133837. [PMID: 38401216 DOI: 10.1016/j.jhazmat.2024.133837] [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: 12/25/2023] [Revised: 02/08/2024] [Accepted: 02/18/2024] [Indexed: 02/26/2024]
Abstract
The sound disposal of the ensuing heavy metal-rich plants can address the aftermath of phytoremediation. In this study, the first attempt was made to obtain heavy metals-free and phosphorus-rich biochar from phytoremediation residue (PR) by pyrolysis, and the effects of chlorinating agent type, chlorine dosage, and pyrolysis residence time on heavy metal removal, phosphorus (P) transformation, and biochar properties were investigated. The results showed that as chlorine dosage and pyrolysis residence time increased, added polyvinyl chloride (PVC) reduced the concentration of Zn in biochar to one-tenth of that in PR by intensified chlorination, where both Zn concentration (2727.50 mg/kg) and its leaching concentration (29.13 mg/L) met the utilization requirements, in which the acid-base property of biochar plays a key role in heavy metal leaching. Meanwhile, more than 90% of P in PR remained in biochar and the bioavailability of P in biochar enhanced with the decomposition of organic P to inorganic P, where the concentration of plant-availability P (Pnac) expanded from 1878.40 mg/kg in PR to 8454.00 mg/kg in biochar. This study demonstrated that heavy metal hyperaccumulator can be converted into heavy metal-free and phosphorus-rich biochar with promising applications, which provides new perspectives for the treatment of such hazardous wastes.
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Affiliation(s)
- Zhiyuan Li
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Yaji Huang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China.
| | - Zhicheng Zhu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Mengzhu Yu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Haoqiang Cheng
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Hao Shi
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Yixuan Xiao
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Huikang Song
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Wu Zuo
- Jiangsu Environmental Engineering Technology Co., Ltd., Nanjing 210019, China
| | - Haiyun Zhou
- Jiangsu Environmental Engineering Technology Co., Ltd., Nanjing 210019, China
| | - Sheng Wang
- China Energy Investment Corporation Science and Technology Research Institute Co., Ltd., Nanjing 210031, China
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Deng P, Lin K, Yuan W, Gomez MA, She J, Yu S, Sun M, Liu Y, Wang J, Chen D, Liu J. Risk assessment and strontium isotopic tracing of potentially toxic metals in creek sediments around a uranium mine, China. CHEMOSPHERE 2024; 353:141597. [PMID: 38432466 DOI: 10.1016/j.chemosphere.2024.141597] [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: 01/19/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/05/2024]
Abstract
The contamination of creek sediments near industrially nuclear dominated site presents significant environmental challenges, particularly in identifying and quantifying potentially toxic metal (loid)s (PTMs). This study aims to measure the extent of contamination and apportion related sources for nine PTMs in alpine creek sediments near a typical uranium tailing dam from China, including strontium (Sr), rubidium (Rb), manganese (Mn), lithium (Li), nickel (Ni), copper (Cu), vanadium (V), cadmium (Cd), zinc (Zn), using multivariate statistical approach and Sr isotopic compositions. The results show varying degrees of contamination in the sediments for some PTMs, i.e., Sr (16.1-39.6 mg/kg), Rb (171-675 mg/kg), Mn (224-2520 mg/kg), Li (11.6-78.8 mg/kg), Cd (0.31-1.38 mg/kg), and Zn (37.1-176 mg/kg). Multivariate statistical analyses indicate that Sr, Rb, Li, and Mn originated from the uranium tailing dam, while Cd and Zn were associated with abandoned agricultural activities, and Ni, Cu, and V were primarily linked to natural bedrock weathering. The Sr isotope fingerprint technique further suggests that 48.22-73.84% of Sr and associated PTMs in the sediments potentially derived from the uranium tailing dam. The combined use of multivariate statistical analysis and Sr isotopic fingerprint technique in alpine creek sediments enables more reliable insights into PTMs-induced pollution scenarios. The findings also offer unique perspectives for understanding and managing aqueous environments impacted by nuclear activities.
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Affiliation(s)
- Pengyuan Deng
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Ke Lin
- Earth Observatory of Singapore and Asian School of the Environment, Nanyang Technological University, Singapore
| | - Wenhuan Yuan
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Mario Alberto Gomez
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Jingye She
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Shan Yu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Mengqing Sun
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Yanyi Liu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Jin Wang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China.
| | - Diyun Chen
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou, China.
| | - Juan Liu
- Key Laboratory of Water Quality and Conservation in the PRD, Ministry of Education, Guangzhou University, Guangzhou, China.
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Wang W, Wu S, Sui X, Cheng S. Phytoremediation of contaminated sediment combined with biochar: Feasibility, challenges and perspectives. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133135. [PMID: 38056263 DOI: 10.1016/j.jhazmat.2023.133135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/05/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023]
Abstract
The accumulation of contaminants in sediments is accelerated by human activities and poses a major threat to ecosystems and human health. In recent years, various remediation techniques have been developed for contaminated sediments. In this review, a bibliometric analysis of papers on sediment remediation indexed in the WOS database between 2009 and 2023 was conducted using VOSviewer. We describe the development of biochar and plants for sediment contaminant removal. However, the single processes of biochar remediation and phytoremediation can be impeded by (i) low efficiency, (ii) poor tolerance of plants towards pollutants, (iii) difficulty in biochar to degrade pollutants, and (iv) biochar aging causing secondary pollution. Fortunately, combination remediation, realized through the combination of biochar and plants, can overcome the shortcomings of their individual applications. Therefore, we suggest that the remediation of contaminants in sediments can be accomplished by combining biochar with macrophytes and considering multiple limiting factors. Here, we explore the challenges that co-remediation with biochar and macrophytes will face in achieving efficient and sustainable sediment remediation, including complex sediment environments, interaction mechanisms of biochar-macrophyte-microorganisms, emerging pollutants, and integrated life cycle assessments, which can provide references for combined biochar and plant remediation of sediments in the future.
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Affiliation(s)
- Weicong Wang
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Shuangqi Wu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Xueqing Sui
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Shuiping Cheng
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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25
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Rehman M, Pan J, Mubeen S, Ma W, Luo D, Cao S, Saeed W, Jin G, Li R, Chen T, Chen P. Morpho-physio-biochemical, molecular, and phytoremedial responses of plants to red, blue, and green light: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:20772-20791. [PMID: 38393568 DOI: 10.1007/s11356-024-32532-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/14/2024] [Indexed: 02/25/2024]
Abstract
Light is a basic requirement to drive carbon metabolism in plants and supports life on earth. Spectral quality greatly affects plant morphology, physiology, and metabolism of various biochemical pathways. Among visible light spectrum, red, blue, and green light wavelengths affect several mechanisms to contribute in plant growth and productivity. In addition, supplementation of red, blue, or green light with other wavelengths showed vivid effects on the plant biology. However, response of plants differs in different species and growing conditions. This review article provides a detailed view and interpretation of existing knowledge and clarifies underlying mechanisms that how red, blue, and green light spectra affect plant morpho-physiological, biochemical, and molecular parameters to make a significant contribution towards improved crop production, fruit quality, disease control, phytoremediation potential, and resource use efficiency.
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Affiliation(s)
- Muzammal Rehman
- College of Agriculture, Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi University, Nanning, 530004, China
| | - Jiao Pan
- College of Agriculture, Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi University, Nanning, 530004, China
| | - Samavia Mubeen
- College of Agriculture, Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi University, Nanning, 530004, China
| | - Wenyue Ma
- College of Agriculture, Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi University, Nanning, 530004, China
| | - Dengjie Luo
- College of Agriculture, Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi University, Nanning, 530004, China
| | - Shan Cao
- College of Agriculture, Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi University, Nanning, 530004, China
| | - Wajid Saeed
- College of Agriculture, Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi University, Nanning, 530004, China
| | - Gang Jin
- Guangxi Subtropical Crops Research Institute, Nanning, 530001, China
| | - Ru Li
- College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Tao Chen
- Guangxi Subtropical Crops Research Institute, Nanning, 530001, China
| | - Peng Chen
- College of Agriculture, Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi University, Nanning, 530004, China.
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Imbaná R, Daniele de Almeida Valente F, Siqueira RG, Moquedace CM, Rodrigues de Assis I. Assessing the quality of constructed technosols enabled holistic monitoring of ecological restoration. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 353:120237. [PMID: 38310796 DOI: 10.1016/j.jenvman.2024.120237] [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: 11/01/2023] [Revised: 01/10/2024] [Accepted: 01/25/2024] [Indexed: 02/06/2024]
Abstract
The soil quality index (SQI) serves as a general ecological restoration indicator, however, statistics approaches that accurately assess the minimum data set (MDS) for SQI remain susceptible. The present study aims to evaluate the short-term reclamation results at the Ferro-Carvão stream and propose a system for ecological restoration monitoring, by selecting influential attributes and indexing soil quality. We hypothesized that the reclamation activities at the Ferro-Carvão stream, referred to as the "Marco zero" (MZ) area, can bring its soil quality to levels comparable to those of the native area. We collected soil samples at 0-20 and 20-40 cm depths from transects of MZ and reference sites (R1 and R2). Principal component analysis showed the MDS for each soil depth. Permutational analysis of variance, in conjunction with Nonmetric Multidimensional Scaling, exposed relationships between transects of areas. An additive non-linear factorial algorithm allowed SQI assessment. The results indicated a similar soil quality between transects of areas at 0-20 cm depth, whereas a dissimilarity at 20-40 cm. To sum up, reclamation activities allowed MZ-constructed Technosol to present a soil quality similar to native areas. The soil quality assessment at both depths offered insights into reclamation activities' immediate and long-term impacts on the Ferro-Carvão stream. This robust framework effectively monitors ecological restoration progress and guides future efforts in post-mining and post-dam collapse sites.
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Affiliation(s)
- Rugana Imbaná
- Department of Soil Science and Plant Nutrition, Universidade Federal de Viçosa, R. Purdue S/N, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - Fernanda Daniele de Almeida Valente
- Department of Soil Science and Plant Nutrition, Universidade Federal de Viçosa, R. Purdue S/N, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - Rafael Gomes Siqueira
- Department of Soil Science and Plant Nutrition, Universidade Federal de Viçosa, R. Purdue S/N, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - Cássio Marques Moquedace
- Department of Soil Science and Plant Nutrition, Universidade Federal de Viçosa, R. Purdue S/N, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Igor Rodrigues de Assis
- Department of Soil Science and Plant Nutrition, Universidade Federal de Viçosa, R. Purdue S/N, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
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Parera V, Pérez-Chaca MV, Gallardo LV, Gatica-Aguilar CV, Parera CA, Feresin GE. Adesmia pinifolia, a Native High-Andean Species, as a Potential Candidate for Phytoremediation of Cd and Hg. PLANTS (BASEL, SWITZERLAND) 2024; 13:464. [PMID: 38498429 PMCID: PMC10891624 DOI: 10.3390/plants13040464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/17/2024] [Accepted: 01/23/2024] [Indexed: 03/20/2024]
Abstract
This study highlights Adesmia pinifolia, a native high-Andean species, as a potential candidate for the phytoremediation of soils contaminated with Cd and Hg. In this work, a semi-hydronic assay with different doses of Cd (3, 4.5, and 6 mg L-1) and Hg (0.8, 1.2, and 1.6 mg L-1) was analysed to evaluate the establishment of plants, antioxidant defence systems, oxidative stress, and the ability to accumulate heavy metals. The results indicate high survival rates (>80%); however, Cd significantly reduced shoot and root biomass, while Hg increased root biomass with the 1.6 mg L-1 treatment. Cd and Hg tend to accumulate more in roots (2534.24 µg/g and 596.4 µg g-1, respectively) compared to shoots (398.53 µg g-1 and 140.8 µg g-1, respectively). A significant decrease in the bioconcentration factor of Cd and Hg in roots was observed as metal levels increased, reaching the maximum value at 3 mg L-1 (805.59 ± 54.38) and 0.8 mg L-1 (804.54 ± 38.09). The translocation factor, <1 for both metals, suggests that translocation from roots to shoots is limited. An overproduction of reactive oxygen species (ROS) was observed, causing lipid peroxidation and oxidative damage to plant membranes. Tolerance strategies against subsequent toxicity indicate that enhanced glutathione reductase (GR) activity and glutathione (GSH) accumulation modulate Cd and Hg accumulation, toxicity, and tolerance.
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Affiliation(s)
- Victoria Parera
- Instituto de Biotecnología, Facultad de Ingeniería, Universidad Nacional de San Juan, Av. Libertador General San Martin 1109 Oeste, San Juan 5400, Argentina;
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Cuidad Autónoma de Buenos Aires (CABA) C1425FQB, Argentina;
| | - M. Verónica Pérez-Chaca
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis. Ejército de los Andes 950, San Luis 5700, Argentina; (M.V.P.-C.); (L.V.G.)
| | - Laura V. Gallardo
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis. Ejército de los Andes 950, San Luis 5700, Argentina; (M.V.P.-C.); (L.V.G.)
| | - Camila V. Gatica-Aguilar
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Cuidad Autónoma de Buenos Aires (CABA) C1425FQB, Argentina;
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis. Ejército de los Andes 950, San Luis 5700, Argentina; (M.V.P.-C.); (L.V.G.)
| | - Carlos A. Parera
- Instituto Nacional de Tecnología Agropecuaria (INTA), Avenida Rivadavia 1439, Cuidad Autónoma de Buenos Aires (CABA) C1033AAE, Argentina;
| | - Gabriela E. Feresin
- Instituto de Biotecnología, Facultad de Ingeniería, Universidad Nacional de San Juan, Av. Libertador General San Martin 1109 Oeste, San Juan 5400, Argentina;
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Cuidad Autónoma de Buenos Aires (CABA) C1425FQB, Argentina;
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Liao Q, Fu H, Shen C, Huang Y, Huang B, Hu C, Xiong X, Huang Y, Xin J. Physiological and biochemical characteristics of high and low Cd accumulating Brassica napus genotypes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:11873-11885. [PMID: 38224442 DOI: 10.1007/s11356-024-31942-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 01/05/2024] [Indexed: 01/16/2024]
Abstract
Phytoremediation is a widely used and cost-effective technique for in situ remediation of heavy metals. Brassica napus L. genotype with high Cd accumulation and strong Cd tolerance is an ideal candidate for phytoremediation. In this study, a hydroponic experiment was conducted to select a Brassica napus genotype with either high or low Cd accumulation from a panel of 55 genotypes. The physiological mechanisms governing Cd accumulation and Cd tolerance were then explored. BN400 and BN147 were identified as the high and low Cd accumulating genotypes, respectively. Additionally, BN400 exhibited greater tolerance to Cd stress compared to BN147. Root morphology analysis revealed that BN400 exhibited longer root length, smaller root surface area and root volume, and less root tips but bigger root diameter than BN147. Subcellular Cd distribution showed that the Cd concentrations in the cell wall and vacuole in shoot were significantly higher in BN400 than in BN147, whereas the opposite trend was observed in the roots.. Pectate/protein-integrated Cd was found to be the predominant form of Cd in both shoots and roots, with significantly higher levels in BN400 compared to BN147 in the shoot, but the opposite trend was observed in the roots. These results suggest that the long fine roots play a role in Cd accumulation. The high Cd accumulating genotype was able to retain Cd in leaf cell walls and vacuoles, and Cd was mainly present in the form of pectate/protein-integrated Cd, which contributes to its strong Cd tolerance. These findings have important implications for the screening and breeding of Brassica napus genotypes with high Cd accumulation for phytoremediation purposes.
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Affiliation(s)
- Qiong Liao
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang, China
| | - Huilin Fu
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang, China
| | - Chuang Shen
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang, China
| | - Yingying Huang
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang, China
| | - Baifei Huang
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang, China
| | - Chongyang Hu
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang, China
| | - Xiaokang Xiong
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang, China
| | - Yuxi Huang
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang, China
| | - Junliang Xin
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang, China.
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29
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Sorrentino MC, Giordano S, Spagnuolo V. Phytomonitoring and Phytoremediation of Environmental Pollutants. PLANTS (BASEL, SWITZERLAND) 2024; 13:366. [PMID: 38337899 PMCID: PMC10857515 DOI: 10.3390/plants13030366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024]
Abstract
Since 1973, with the activation of the Environmental Action Program (EAP), the European Union has produced a substantial body of legislative packages aimed at improving the environmental quality; as a result, air, water, and soil pollution have significantly been reduced, as stated by the European Commission in the EAP 2020 [...].
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Affiliation(s)
- Maria Cristina Sorrentino
- Council for Agricultural Research and Economics, Cereal and Industrial Crops (CREA-CI), Via Torrino 2, 81100 Caserta, CE, Italy;
| | - Simonetta Giordano
- Department of Biology, Università degli Studi di Napoli Federico II, 80126 Napoli, NA, Italy;
| | - Valeria Spagnuolo
- Department of Biology, Università degli Studi di Napoli Federico II, 80126 Napoli, NA, Italy;
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Zhang K, Zhang H, Xie C, Zhu Z, Lin L, An Q, Zhang X, Wu W, Li D. Piriformospora indica colonization enhances remediation of cadmium and chromium co-contaminated soils by king grass through plant growth promotion and rhizosphere microecological regulation. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132728. [PMID: 37820529 DOI: 10.1016/j.jhazmat.2023.132728] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 10/04/2023] [Accepted: 10/04/2023] [Indexed: 10/13/2023]
Abstract
Poor plant growth and low pollutant bioavailability in contaminated soils limit phytoremediation efficiency. Pot experiments were conducted to investigate the effects and mechanisms of Piriformospora indica inoculation on the phytoremediation of Cd-Cr co-contaminated soils from farmland using king grass. P. indica colonization increased plant biomass by 20.4-24.6% and enhanced Cd/Cr accumulation in root, stem and leave tissues. Root vascular cylinder and cortex were the major structures for Cd/Cr transportation in plants. The amounts of Cd and Cr extracted by king grass considerably increased in the presence of P. indica (by 31.5-88.9% and 22.4-38.4%, respectively), as did the removal efficiency of both metals from soils (by 13.2-32.2% and 23.2-33.5%, respectively). Cd/Cr phytoextraction was closely related to the contents of alkanes, lipids and acids in root exudates. Following inoculation, the respiration of microbial sulfur compounds was promoted in soils at low and medium pollution levels, whereas nitrogen fixation and nitrification were reduced at high pollution level. This study demonstrates that P. indica inoculation enhances the phytoremediation efficiency of king grass for Cd-Cr co-contaminated soils through multiple regulation of plant growth, rhizosphere environment, root exudation and soil microbial function.
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Affiliation(s)
- Kailu Zhang
- School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
| | - Haixiang Zhang
- School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
| | - Can Xie
- School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
| | - Zhiqiang Zhu
- School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China.
| | - Li Lin
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi) / Guangxi Key Laboratory of Sugarcane Genetic Improvement, Ministry of Agriculture and Rural Affairs, Nanning 530007, China
| | - Qianli An
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310000, China
| | - Xin Zhang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 10085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Weidong Wu
- School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
| | - Dong Li
- Key Laboratory for Environmental Toxicology of Haikou / Center for Eco-Environmental Restoration Laboratory of Marine Resource Utilization in South China Sea / Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China.
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31
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Liu Y, Huang L, Liu Q, Li Z, Liu C, Yuan J, Liao J, Luo L, Yu C, Feng Y. Effects of tomato-Sedum alfredii Hance intercropping on crop production and Cd remediation as affected by soil types. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:3696-3706. [PMID: 38091222 DOI: 10.1007/s11356-023-31318-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/28/2023] [Indexed: 01/19/2024]
Abstract
Intercropping crops with hyperaccumulators is a proven model for coupling crop safety production and soil heavy metal remediation. And both crop genotypes and soil properties might have great impacts on the effect of intercropping. Therefore, a greenhouse pot experiment was designed to investigate the effects of intercropping different tomato varieties with the cadmium (Cd) hyperaccumulator Sedum alfredii Hance (S. alfredii Hance) on different soils. The results showed that intercropping promoted Cd uptake by S. alfredii Hance and reduced soil total Cd concentration. There was no significant effect of intercropping on tomato yield and Cd concentration. Different tomato varieties had different effects on tomato yield and Cd concentration. The yield of cherry tomato was 1.04 times higher than that of common large fruit tomato, while the Cd concentration in all parts was lower than that of common large fruit tomato. Different typical zonal soils had different effects on tomato production and soil remediation. And among the four studied soils, tomatoes grown on ZJ soil had the highest yields and lowest fruit Cd concentration, making them more suitable for remediation coupled with safety production. This study provided a comprehensive analysis of tomato production benefits and soil remediation effects, which could be useful as a guide in vegetable safety production coupled with soil remediation practices in the Cd-contaminated greenhouse.
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Affiliation(s)
- Yaru Liu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Lukuan Huang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Qizhen Liu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zhesi Li
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Chanjuan Liu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jie Yuan
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jiayuan Liao
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Lishan Luo
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Chao Yu
- Livestock Industrial Development Center of Shengzhou, Shengzhou, 312400, China
| | - Ying Feng
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
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32
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Tamburini E, Mandaresu M, Lussu R, Sergi S, Vitali F, Carucci A, Cappai G. Metal phytostabilization by mastic shrub (Pistacia lentiscus L.) and its root-associated bacteria in different habitats of Sardinian abandoned mining areas (Italy). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:122107-122120. [PMID: 37964146 DOI: 10.1007/s11356-023-30776-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/27/2023] [Indexed: 11/16/2023]
Abstract
Pistacia lentiscus L. is an excluder metallophyte proposed for the revegetation and phytostabilization of metal-contaminated sites in the Mediterranean area. The present study aims at evaluating the linking between bacterial communities and plants spontaneously growing in ecosystems chronically impacted by mining activities. Environmental properties and metal accumulation into hypogeal and epigeal tissues were analyzed in wild plants of two contrasting habitats with extreme metal contamination (> 2300 mg/kg for Zn, > 1100 mg/kg for Pb, > 10 mg/kg for Cd). The community structures of rhizospheric and root endophytic bacteria were fingerprinted by terminal restriction fragment length polymorphism of the 16S rRNA gene. The wild shrubs efficiently restrict the accumulation of the three major contaminants to the epigeal tissues in the two habitats under study (249 ± 68 mg/kg dw for Zn, 43 ± 21 mg/kg dw for Pb, and 1.4 ± 0.5 mg/kg dw for Cd). Evidence was provided that the combined but not individual effect of environmental conditions (moisture, inorganic carbon, pH) and proportion between Zn and Cd in the mine substrate play a role in structuring rhizosphere bacterial communities. The observed changes in community structures of root endophytes were found to be strongly associated with Pb level in roots and substrate properties (inorganic carbon and Zn/Cd ratio). Overall, our study highlights the importance of the analysis of multifactorial interactions among mine substrate, plant, and microbes for understanding how the environmental context affects phytoremediation under real conditions.
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Affiliation(s)
- Elena Tamburini
- Departnent of Biomedical Sciences, University of Cagliari, Cittadella Universitaria Sp.8, 09042, Monserrato, CA, Italy.
| | - Melinda Mandaresu
- Departnent of Biomedical Sciences, University of Cagliari, Cittadella Universitaria Sp.8, 09042, Monserrato, CA, Italy
| | - Raffaela Lussu
- Departnent of Biomedical Sciences, University of Cagliari, Cittadella Universitaria Sp.8, 09042, Monserrato, CA, Italy
| | - Simona Sergi
- Departnent of Biomedical Sciences, University of Cagliari, Cittadella Universitaria Sp.8, 09042, Monserrato, CA, Italy
| | - Francesco Vitali
- Research Centre for Agriculture and Environment, Council for Agricultural Research and Economics, Via Di Lanciola 12/A, 50125, Florence, Italy
| | - Alessandra Carucci
- Department of Civil- Environmental Engineering and Architecture, University of Cagliari, Piazza d'Armi, 09123, Cagliari, Italy
| | - Giovanna Cappai
- Department of Civil- Environmental Engineering and Architecture, University of Cagliari, Piazza d'Armi, 09123, Cagliari, Italy
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Yan D, Xue S, Zhang Z, Xu G, Zhang Y, Gao J, Zhang W. Air nanobubble water improves plant uptake and tolerance toward cadmium in phytoremediation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 337:122577. [PMID: 37722479 DOI: 10.1016/j.envpol.2023.122577] [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: 06/22/2023] [Revised: 09/12/2023] [Accepted: 09/16/2023] [Indexed: 09/20/2023]
Abstract
Heavy metal contamination continues to be a persistent environmental problem. To address this issue, this study evaluated the impact of air nanobubbles (NBs) in water on the uptake of heavy metals by Alternanthera philoxeroides (A. philoxeroides), a common aquatic plant in China known for its rapid growth, strong vitality, and high capacity for heavy metal remediation. This study found that diluted air NBs (25% concentration) boosted cadmium uptake of A. philoxeroides by 17.39%. They also enhanced plant growth (25-50%) and photosynthetic pigments (10-20%) even at low cadmium levels (0.1 mM). Furthermore, the incorporation of 25% air NBs has been demonstrated to significantly amplify the performance of key antioxidant enzymes, such as superoxide dismutase and catalase, alongside heightened levels of crucial antioxidants such as malondialdehyde. This heightened activity of antioxidant defenses offers a compelling explanation for the potential amelioration of cadmium toxicity and concurrent enhancements in overall plant growth rates. Notably, a comprehensive analysis utilizing the excitation emission matrix-parallel factor analysis (EEM-PARAFAC) technique has revealed alterations in the composition of rhizosphere dissolved organic matter due to the presence of NBs. This ncomposition change of the rhizosphere dissolved organic mattermposition has subsequently exerted an influence on plant complexation processes and the subsequent uptake of cadmium. This study demonstrates that the strategic implementation of air NBs in water systems holds the potential to significantly enhance the plant's ability to detoxify cadmium and improve the uptake of heavy metals during phytoremediation processes.
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Affiliation(s)
- Dajiang Yan
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Shan Xue
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd., Newark, NJ, 07102, USA
| | - Zhibin Zhang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China.
| | - Guodong Xu
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Yanhao Zhang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Jianan Gao
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd., Newark, NJ, 07102, USA
| | - Wen Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd., Newark, NJ, 07102, USA.
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34
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Su Z, Jalalah M, Alsareii SA, Harraz FA, Almadiy AA, Wang L, Thakur N, Salama ES. Supplementation of micro-nutrients to growth media of microalgae-induced biomass and fatty acids composition for clean energy generation. World J Microbiol Biotechnol 2023; 40:12. [PMID: 37953333 DOI: 10.1007/s11274-023-03815-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 10/22/2023] [Indexed: 11/14/2023]
Abstract
The presence of harmful heavy metals (HMs) in the aquatic environment can damage the environment and threaten human health. Traditional remediation techniques can have secondary impacts. Thus, more sustainable approaches must be developed. Microalgae have biological properties (such as high photosynthetic efficiency and growth), which are of great advantage in the HMs removal. In this study, the effect of various concentrations (2×, 4×, and 6×) of copper (Cu), cobalt (Co), and zinc (Zn) on microalgae (C. sorokiniana GEEL-01, P. kessleri GEEL-02, D. asymmetricus GEEL-05) was investigated. The microalgal growth kinetics, HMs removal, total nitrogen (TN), total phosphor (TP), and fatty acids (FAs) compositions were analyzed. The highest growth of 1.474 OD680nm and 1.348 OD680nm was obtained at 2× and 4×, respectively, for P. kessleri GEEL-02. P. kessleri GEEL-02 showed high removal efficiency of Cu, Co, and Zn (38.92-55.44%), (36.27-68.38%), and (32.94-51.71%), respectively. Fatty acids (FAs) analysis showed that saturated FAs in C. sorokiniana GEEL-01 and P. kessleri GEEL-02 increased at 2× and 4× concentrations while decreasing at 6×. For P. kessleri GEEL-02, the properties of biodiesel including the degree of unsaturation (UD) and cetane value (CN) increased at 2×, 4×, and 6× as compared to the control. Thus, this study demonstrated that the three microalgae (particularly P. kessleri GEEL-02) are more suitable for nutrient and HMs removal coupled with biomass/biodiesel production.
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Affiliation(s)
- Zhenni Su
- Department of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, 730000, Gansu Province, People's Republic of China
| | - Mohammed Jalalah
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia.
- Department of Electrical Engineering, College of Engineering, Najran University, Najran, 11001, Saudi Arabia.
| | - Saeed A Alsareii
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia
- Department of Surgery, College of Medicine, Najran University, Najran, 11001, Saudi Arabia
| | - Farid A Harraz
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Sharurah, 68342, Saudi Arabia
| | - Abdulrhman A Almadiy
- Department of Biology, Faculty of Arts and Sciences, Najran University, Najran, 1988, Saudi Arabia
| | - Lei Wang
- Department of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, 730000, Gansu Province, People's Republic of China
| | - Nandini Thakur
- Department of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, 730000, Gansu Province, People's Republic of China
| | - El-Sayed Salama
- Department of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, 730000, Gansu Province, People's Republic of China.
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Penzy K, Muhammad S, Shahzad M, Hussain I, Khan SA, Abbasi AM, Khan I, Ahmad R. Industrial wastewater irrigation increased higher heavy metals uptake and expansins, metacaspases, and cystatin genes expression in Parthenium and maize. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1430. [PMID: 37940800 DOI: 10.1007/s10661-023-12028-5] [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: 03/20/2023] [Accepted: 10/23/2023] [Indexed: 11/10/2023]
Abstract
Industrial wastewater irrigation of agricultural crops can cause a lot of environmental and health problems in developing countries due to heavy metals deposition in agricultural soils as well as edible plant consumption by human beings. Therefore, this study was conducted to find out the heavy metals concentration in industrial wastewater and soil irrigated with that wastewater. In addition, the aim was to determine the impact of industrial wastewater irrigation on Parthenium hysterophorus and Zea mays genes involved in growth improvement and inhibition. For this purpose, plant samples from agriculture fields irrigated with wastewater from Hattar Industrial Estate (HIE) of Haripur, Pakistan, and control plants from non-contaminated soil irrigated with tape water were collected after 15 and 45 days of germination. Heavy metals concentration in the collected plant samples, wastewater, and soil was determined. The results revealed that the soil of the sample collection site was predominantly contaminated with Cr, Pb, Ni, Cu, Co, Zn, and Cd up to the concentrations of 38.98, 21.14, 46.01, 155.73, 12.50, 68.50, and 7.01 mg/kg, respectively. The concentrations of these heavy metals were found to surpass the permissible limit in normal agricultural soil. Expansins, cystatins (plant growth enhancers), and metacaspases (plant growth inhibitor) gene expression were studied through reverse transcription polymerase chain reaction. The results showed that the expression of these genes was higher in samples collected from wastewater-irrigated soils as compared to control. The expression of these genes was observed in 45 days old samples, 15 days old samples, and control. Taken together, this study suggests the use of Parthenium and maize for phytoremediation and that they should not be used for eating purposes if irrigated with industrial wastewater.
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Affiliation(s)
- Kinza Penzy
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Said Muhammad
- National Centre of Excellence in Geology University of Peshawar, Peshawar, 25130, Pakistan
| | - Muhammad Shahzad
- Department of Environmental Sciences, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Imran Hussain
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan.
- COMSATS University Islamabad, Abbottabad campus, Abbottabad, Pakistan.
| | - Sabaz Ali Khan
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Arshad Mehmood Abbasi
- Department of Environmental Sciences, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Imtiaz Khan
- Department of Weed Science and Botany, The University of Agriculture Peshawar, Peshawar, Pakistan
| | - Rafiq Ahmad
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan.
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36
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Ketaubon P, Prapagdee B. Enhancing cadmium phytoremediation of Chlorophytum comosum (Thunb.) Jacques by applying cadmium-resistant bacterial tablet. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:113015-113025. [PMID: 37847368 DOI: 10.1007/s11356-023-30382-2] [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: 07/26/2023] [Accepted: 10/06/2023] [Indexed: 10/18/2023]
Abstract
This study aims to formulate bacterial tablets of cadmium (Cd)-resistant Micrococcus sp. MU1, an indole-3-acetic acid-producer, for soil inoculation to improve Cd phytoremediation by Chlorophytum comosum (Thunb.) Jacques. The viability of Micrococcus sp. MU1 in tablets after storage at room temperature and 4 °C was determined. The ability of Micrococcus sp. tablets and cell suspensions on stimulating growth and Cd accumulation in C. comosum was compared. The results found that the viability of Micrococcus sp. tablets stored at room temperature and 4 °C for 2 months were 29.2 and 97.9%, respectively. After 2 months of growth in pots, the dry biomass weights of C. comosum amended with Micrococcus sp. tablet and cell suspension were greater than that of uninoculated control by 1.4- and 1.3-fold, respectively. Cd concentrations in the roots and shoots of C. comosum inoculated with bacterial tablet and bacterial suspension were not significantly different (p < 0.05) and were greater than that of the uninoculated plants. In addition, plants inoculated with Micrococcus sp. tablet and cell suspension exhibited superior phytoextraction performance, bioaccumulation factor, and translocation factor, indicating equal performance of both bacterial forms on boosting Cd phytoremediation efficiency in C. comosum. These findings suggest that soil inoculation with Micrococcus sp. tablet as a ready-to-use inoculum is a novel approach to promote phytoremediation of C. comosum in Cd-contaminated agricultural soil.
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Affiliation(s)
- Patipat Ketaubon
- Faculty of Environment and Resource Studies, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand
| | - Benjaphorn Prapagdee
- Faculty of Environment and Resource Studies, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand.
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37
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Pollicelli MDLP, Márquez F, Pollicelli MD, Idaszkin YL. Screening of tolerance of Atriplex vulgatissima under zinc or lead experimental conditions. An integrative perspective by using the integrated biological response index (IBRv2). CHEMOSPHERE 2023; 341:140110. [PMID: 37690562 DOI: 10.1016/j.chemosphere.2023.140110] [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: 05/24/2023] [Revised: 09/01/2023] [Accepted: 09/06/2023] [Indexed: 09/12/2023]
Abstract
The search for plants with a high capacity to tolerate and accumulate metals is an important issue in phytoremediation. In this sense, this study was conducted in the halophyte Atriplex vulgatissima to evaluate the effects of different concentrations of lead (Pb, 50 and 100 μM) or zinc (Zn, 100 and 200 μM) on morphological, physiological, and biochemical parameters as well as the accumulation patterns of this species. The results indicated that while essential metal Zn showed high translocation from roots to shoots (TF > 1), non-essential Pb was mainly accumulated in the roots (BCF>1). Regarding shape, both metals induced slenderness of the blade, but only Zn treatment reduced leaf size. No difference in biomass production and photosynthetic parameters was found between Pb and Zn treatments. Pb treatments did not show significant differences between treatments regarding water content (WC), pigment concentration, and the activity of superoxide dismutase (SOD) and guaiacol peroxidase (GPx), but did result in a decrease in catalase activity at 100 μM Pb. On the other hand, 200 μM Zn leads to a clear reduction in WC and pigment concentrations, along with an increase in SOD and GPx activities. In addition, ascorbate peroxidase (APx) activity showed a hormesis effect at 50 μM Pb and 100 μM Zn. Malondialdehyde increased with both Pb and Zn treatments. The integrated biological index (IBRv2) indicated that 200 μM Zn was the most affected treatment (IBRv2 = 19.02) and that under the same concentrations of metals (100 μM Pb or Zn), Pb treatments presented major stress (IBRv2 = 11.55). A. vulgatissima is a metallophyte with the potential for Pb phytostabilization and Zn phytoextraction, as well as a bioindicator of these metals. Its high biomass and deep roots, combined with its halophytic traits, make it suitable for bioremediation and monitoring programs.
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Affiliation(s)
- María de la Paz Pollicelli
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CONICET), Boulevard Brown 2915, U9120ACD Puerto Madryn, Chubut, Argentina; Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown 3051, U9120ACD Puerto Madryn, Chubut, Argentina
| | - Federico Márquez
- Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown 3051, U9120ACD Puerto Madryn, Chubut, Argentina; Instituto de Biología de Organismos Marinos (IBIOMAR-CONICET), Boulevard Brown 2915, U9120ACD Puerto Madryn, Chubut, Argentina
| | - María Débora Pollicelli
- Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown 3051, U9120ACD Puerto Madryn, Chubut, Argentina; Centro Para el Estudio de Sistemas Marinos (CESIMAR-CONICET), Boulevard Brown 2915, U9120ACD Puerto Madryn, Chubut, Argentina
| | - Yanina L Idaszkin
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CONICET), Boulevard Brown 2915, U9120ACD Puerto Madryn, Chubut, Argentina; Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown 3051, U9120ACD Puerto Madryn, Chubut, Argentina.
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38
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Li Q, Yin J, Wu L, Li S, Chen L. Effects of biochar and zero valent iron on the bioavailability and potential toxicity of heavy metals in contaminated soil at the field scale. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 897:165386. [PMID: 37423275 DOI: 10.1016/j.scitotenv.2023.165386] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 06/19/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
Heavy metals (HMs) such as copper, nickel and chromium are toxic, so soil contaminated with these metals is of great concern. In situ HM immobilization by adding amendments can decrease the risk of contaminants being released. A five-month field-scale study was performed to assess how different doses of biochar and zero valent iron (ZVI) affect HM bioavailability, mobility, and toxicity in contaminated soil. The bioavailabilities of HMs were determined and ecotoxicological assays were performed. Adding 5 % biochar, 10 % ZVI, 2 % biochar + 1 % ZVI, and 5 % biochar + 10 % ZVI to soil decreased Cu, Ni and Cr bioavailability. Metals were most effectively immobilized by adding 5 % biochar + 10 % ZVI, and the extractable Cu, Ni, and Cr contents were 60.9 %, 66.1 % and 38.9 % lower, respectively, for soil with 5 % biochar + 10 % ZVI added than unamended soil. The extractable Cu, Ni, and Cr contents were 64.2 %, 59.7 % and 16.7 % lower, respectively, for soil with 2 % biochar + 1 % ZVI added than unamended soil. Experiments using wheat, pak choi and beet seedlings were performed to assess the remediated soil toxicity. Growth was markedly inhibited in seedlings grown in extracts of soil with 5 % biochar, 10 % ZVI, or 5 % biochar + 10 % ZVI added. More growth occurred in wheat and beet seedlings after 2 % biochar + 1 % ZVI treatment than the control, possibly because 2 % biochar + 1 % ZVI simultaneously decreased the extractable HM content and increased the soluble nutrient (carbon and Fe) content of the soil. A comprehensive risk assessment indicated that adding 2 % biochar + 1 % ZVI gave optimal remediation at the field scale. Using ecotoxicological methods and determining the bioavailabilities of HMs can allow remediation methods to be identified to efficiently and cost-effectively decrease the risks posed by multiple metals in soil at contaminated sites.
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Affiliation(s)
- Qian Li
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Juan Yin
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Lingling Wu
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Shanghai 200092, China.
| | - Shaolin Li
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Ling Chen
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
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Aminian-Dehkordi J, Rahimi S, Golzar-Ahmadi M, Singh A, Lopez J, Ledesma-Amaro R, Mijakovic I. Synthetic biology tools for environmental protection. Biotechnol Adv 2023; 68:108239. [PMID: 37619824 DOI: 10.1016/j.biotechadv.2023.108239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 08/17/2023] [Accepted: 08/20/2023] [Indexed: 08/26/2023]
Abstract
Synthetic biology transforms the way we perceive biological systems. Emerging technologies in this field affect many disciplines of science and engineering. Traditionally, synthetic biology approaches were commonly aimed at developing cost-effective microbial cell factories to produce chemicals from renewable sources. Based on this, the immediate beneficial impact of synthetic biology on the environment came from reducing our oil dependency. However, synthetic biology is starting to play a more direct role in environmental protection. Toxic chemicals released by industries and agriculture endanger the environment, disrupting ecosystem balance and biodiversity loss. This review highlights synthetic biology approaches that can help environmental protection by providing remediation systems capable of sensing and responding to specific pollutants. Remediation strategies based on genetically engineered microbes and plants are discussed. Further, an overview of computational approaches that facilitate the design and application of synthetic biology tools in environmental protection is presented.
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Affiliation(s)
| | - Shadi Rahimi
- Department of Life Sciences, Chalmers University of Technology, Göteborg, Sweden
| | - Mehdi Golzar-Ahmadi
- Norman B. Keevil Institute of Mining Engineering, University of British Columbia, Vancouver, Canada
| | - Amritpal Singh
- Department of Bioengineering, Imperial College London, London, SW72AZ, UK
| | - Javiera Lopez
- Department of Bioengineering, Imperial College London, London, SW72AZ, UK
| | | | - Ivan Mijakovic
- Department of Life Sciences, Chalmers University of Technology, Göteborg, Sweden; Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Lyngby, Denmark.
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40
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Li C, Wang Q, Hou X, Zhao C, Guo Q. Overexpression of IlHMA2, from Iris lactea, Improves the Accumulation of and Tolerance to Cadmium in Tobacco. PLANTS (BASEL, SWITZERLAND) 2023; 12:3460. [PMID: 37836200 PMCID: PMC10574785 DOI: 10.3390/plants12193460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 09/27/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023]
Abstract
Long-distance transport cadmium (Cd) from roots to shoots is a key factor for Cd phytoremediation. Our previous study indicated that heavy metal P1B2-ATPases, IlHMA2, was involved in improving the accumulation of Cd via mediated long-distance transport Cd, contributing to the phytoremediation in Cd accumulator Iris lactea. However, whether the overexpression of IlHMA2 could enhance the accumulation and tolerance to Cd remains unclear in plants. Here, we generated transgenic tobacco overexpressing IlHMA2 and tested its effect on the translocation and accumulation of Cd and zinc (Zn), as well as the physio-biochemical characteristics under 50 mg/L Cd exposure. The overexpression of IlHMA2 significantly increased Cd concentrations in xylem saps, resulting in enhanced root-to-shoot Cd translocation compared with wild-type. Meanwhile, overexpressing IlHMA2 promoted Zn accumulations, accompanied by elevating proline contents and antioxidant enzyme activity (SOD, POD, and CAT) to diminish the overproduction of ROS in transgenic tobacco. These pieces of evidence suggested that higher Zn concentrations and lower ROS levels could tremendously alleviate Cd toxicity for transgenic tobacco, thereby improving the growth and tolerance. Overall, the overexpression of IlHMA2 could facilitate Cd accumulation and enhance its tolerance in tobacco exposed to Cd contaminations. This would provide a valuable reference for improving Cd phytoremediation efficiency.
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Affiliation(s)
| | | | | | | | - Qiang Guo
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (C.L.); (Q.W.); (X.H.); (C.Z.)
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Elazab D, Lambardi M, Capuana M. In Vitro Culture Studies for the Mitigation of Heavy Metal Stress in Plants. PLANTS (BASEL, SWITZERLAND) 2023; 12:3387. [PMID: 37836127 PMCID: PMC10574448 DOI: 10.3390/plants12193387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023]
Abstract
Heavy metals are among the most common and dangerous contaminants; their action on plants, as well as the possibility for plants to effectively absorb and translocate them, have been studied for several years, mainly for exploitation in phytoremediation, an environmentally friendly and potentially effective technology proposed and studied for the recovery of contaminated soils and waters. In this work, the analysis has focused on the studies developed using in vitro techniques on the possibilities of mitigating, in plants, the stress due to the presence of heavy metals and/or improving their absorption. These objectives can be pursued with the use of different substances and organisms, which have been examined in detail. The following are therefore presented in this review: an analysis of the role of metals and metalloids; the use of several plant growth regulators, with their mechanisms of action in different physiological phases of the plant; the activity of bacteria and fungi; and the role of other effective compounds, such as ascorbic acid and glutathione.
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Affiliation(s)
- Doaa Elazab
- IBE—Institute of BioEconomy, National Research Council (CNR), 50019 Florence, Italy; (D.E.); (M.L.)
- Department of Pomology, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt
| | - Maurizio Lambardi
- IBE—Institute of BioEconomy, National Research Council (CNR), 50019 Florence, Italy; (D.E.); (M.L.)
| | - Maurizio Capuana
- IBBR—Institute of Biosciences and Bioresources, National Research Council (CNR), 50019 Florence, Italy
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Zheng WL, Wang YF, Mo J, Zeng P, Chen J, Sun C. Effects of biochar application and nutrient fluctuation on the growth, and cadmium and nutrient uptake of Trifolium repens with different planting densities in Cd-contaminated soils. FRONTIERS IN PLANT SCIENCE 2023; 14:1269082. [PMID: 37799556 PMCID: PMC10548119 DOI: 10.3389/fpls.2023.1269082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 09/04/2023] [Indexed: 10/07/2023]
Abstract
Biochar has been used to remediate contaminated-soil with heavy metals, however, less is known on how biochar interacts with planting density and nutrient fluctuation to affect the remediation. A pot experiment was conducted in the greenhouse to investigate the effects of biochar application (without vs. with 1% biochar, g/g substrate), nutrient fluctuation (constant vs. pulsed) and planting density (1-, 3- and 6-individuals per pot) on the growth, and cadmium (Cd) and nutrient uptake of Trifolium repens population. Our results found that the growth of T. repens population increased significantly with increasing planting density, and the increment decreased with increasing planting density. Both the Cd and nutrient uptake were higher at higher planting density (e.g., 3- and 6-individuals) than at lower planting density (e.g., 1-individual). Biochar application increased the biomass and shoot Cd uptake, but decreased the ratio of root to shoot and root Cd uptake of T. repens population, the effects of which were significantly influenced by planting density. Although nutrient fluctuation had no effect on the growth of T. repens population, but its interaction with planting density had significant effects on Cd uptake in tissues. Overall, the effects of biochar application and nutrient fluctuation on the growth and Cd uptake were both influenced by planting density in the present study. Our findings highlight that biochar application and constant nutrient supply at an appropriate planting density, such as planting density of 3-individuals per pot in the present study, could promote the growth, and Cd and nutrient uptake of T. repens population.
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Affiliation(s)
- Wei-Long Zheng
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou, China
| | - Yan-Fei Wang
- Taizhou Institute of Product Quality and Safety Inspection, Taizhou, China
| | - Jingya Mo
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou, China
| | - Pu Zeng
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou, China
| | - Jiayi Chen
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou, China
| | - Chenliang Sun
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou, China
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Ding N, Ullah H, Yu G, He Y, Liu L, Xie Y, Shahab A, Lin H. Spatial dynamics of pH in the rhizosphere of Leersia hexandra Swartz at different chromium exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115380. [PMID: 37597293 DOI: 10.1016/j.ecoenv.2023.115380] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 08/09/2023] [Accepted: 08/13/2023] [Indexed: 08/21/2023]
Abstract
The roots of hyperaccumulators can significantly alter soil pH and thus change the chromium (Cr) availability in the rhizosphere. The pH dynamics in the rhizosphere of Cr hyperaccumulator Leersia hexandra Swartz remains unknown. In this study, the spatial dynamics of pH in the rhizosphere of L. hexandra at different Cr exposure were examined using planar optode (PO). The effects of different Cr concentrations on the biomass, physiological parameters, and soil enzyme activity were investigated. The results showed that pH in the rhizosphere of L. hexandra was highly heterogeneous and followed the root shape. There were obvious soil acidification in all groups and the average pH values in the control, Cr50, and Cr100 groups decreased by 0.26, 0.27, and 0.35 pH unit, respectively. At a certain concentration (50 mg kg-1), Cr significantly increased the plant height and biomass of L. hexandra compared to the control (p < 0.05). The concentrations of chlorophyll a, chlorophyll b, and total chlorophyll in the leaves increased with increasing Cr concentrations. The acid phosphatase, urease, and catalase activities in the rhizosphere were higher than those in the bulk soil. These results provide new insights into elucidating the hyperaccumulating mechanism of Cr and improving the phytoremediation efficiency.
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Affiliation(s)
- Na Ding
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
| | - Habib Ullah
- Innovation Center of Yangtze River Delta, Zhejiang University, Zhejiang 311400, China.
| | - Guo Yu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
| | - Yao He
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
| | - Liheng Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
| | - Yiruiwen Xie
- Department of Architecture and Environmental Engineering, Taiyuan University, Taiyuan, China.
| | - Asfandyar Shahab
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
| | - Hua Lin
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
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Bakshi M, Kumar A. Co-application of TiO 2 nanoparticles and hyperaccumulator Brassica juncea L. for effective Cd removal from soil: Assessing the feasibility of using nano-phytoremediation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 341:118005. [PMID: 37148761 DOI: 10.1016/j.jenvman.2023.118005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/10/2023] [Accepted: 04/21/2023] [Indexed: 05/08/2023]
Abstract
Nano-phytoremediation is anticipated as a potential technology for the remediation of heavy metals from soil sites. This study evaluated the feasibility of using titanium dioxide nanoparticles (TiO2 NPs) at various concentrations (0, 100, 250, 500 mg/kg) along with a hyperaccumulator, Brassica juncea L., for effective removal of Cadmium (Cd) from the soil. Plants were grown for a whole life cycle in soil containing 10 mg/kg of Cd and spiked TiO2 NPs. We analyzed the plants for Cd tolerance, phytotoxicity, Cd removal, and translocation. Brassica plants displayed high Cd tolerance with a significant increase in plant growth, biomass, and photosynthetic activity in a concentration-dependent manner. Cd removal from the soil at TiO2 NPs concentrations of 0, 100, 250, and 500 mg/kg treatment was 32.46%, 11.62%, 17.55%, and 55.11%, respectively. The translocation factor for Cd was found to be 1.35, 0.96, 3.73, and 1.27 for 0, 100, 250, and 500 mg/kg concentrations. The results of this study indicate that TiO2 NPs applications in the soil can minimize Cd stress in plants and lead to its efficient removal from soil. Thus, the association of nanoparticles with the phytoremediation process can lead to good application prospects for the remediation of contaminated soil.
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Affiliation(s)
- Mansi Bakshi
- Department of Civil Engineering, Indian Institute of Technology, New Delhi, 110016, India.
| | - Arun Kumar
- Department of Civil Engineering, Indian Institute of Technology, New Delhi, 110016, India
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Liang J, Chang J, Xie J, Yang L, Sheteiwy MS, Moustafa ARA, Zaghloul MS, Ren H. Microorganisms and Biochar Improve the Remediation Efficiency of Paspalum vaginatum and Pennisetum alopecuroides on Cadmium-Contaminated Soil. TOXICS 2023; 11:582. [PMID: 37505548 PMCID: PMC10383370 DOI: 10.3390/toxics11070582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/23/2023] [Accepted: 06/28/2023] [Indexed: 07/29/2023]
Abstract
Phytoremediation can help remediate potential toxic elements (PTE) in soil. Microorganisms and soil amendments are effective means to improve the efficiency of phytoremediation. This study selected three microorganisms that may promote phytoremediation, including bacteria (Ceratobasidium), fungi (Pseudomonas mendocina), and arbuscular-mycorrhizal fungi (AMF, Funneliformis caledonium). The effects of single or mixed inoculation of three microorganisms on the phytoremediation efficiency of Paspalum vaginatum and Pennisetum alopecuroides were tested under three different degrees of cadmium-contaminated soil (low 10 mg/kg, medium 50 mg/kg, and high 100 mg/kg). The results showed that single inoculation of AMF or Pseudomonas mendocina could significantly increase the biomass of two plants under three different degrees of cadmium-contaminated soil, and the growth-promoting effect of AMF was better than Pseudomonas mendocina. However, simultaneous inoculation of these two microorganisms did not show a better effect than the inoculation of one. Inoculation of Ceratobasidium reduced the biomass of the two plants under high concentrations of cadmium-contaminated soil. Among all treatments, the remediation ability of the two plants was the strongest when inoculated with AMF alone. On this basis, this study explored the effect of AMF combined with corn-straw-biochar on the phytoremediation efficiency of Paspalum vaginatum and Pennisetum alopecuroides. The results showed that biochar could affect plant biomass and Cd concentration in plants by reducing Cd concentration in soil. The combined use of biochar and AMF increased the biomass of Paspalum vaginatum by 8.9-48.6% and the biomass of Pennisetum alopecuroides by 8.04-32.92%. Compared with the single use of AMF or biochar, the combination of the two is better, which greatly improves the efficiency of phytoremediation.
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Affiliation(s)
- Jiahao Liang
- College of Agro-Grassland Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiechao Chang
- College of Agro-Grassland Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiayao Xie
- College of Agro-Grassland Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Liquan Yang
- College of Agro-Grassland Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Mohamed S Sheteiwy
- Department of Agronomy, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt
| | | | - Mohamed S Zaghloul
- Botany Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
| | - Haiyan Ren
- College of Agro-Grassland Science, Nanjing Agricultural University, Nanjing 210095, China
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Sánchez-Castro I, Molina L, Prieto-Fernández MÁ, Segura A. Past, present and future trends in the remediation of heavy-metal contaminated soil - Remediation techniques applied in real soil-contamination events. Heliyon 2023; 9:e16692. [PMID: 37484356 PMCID: PMC10360604 DOI: 10.1016/j.heliyon.2023.e16692] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 03/28/2023] [Accepted: 05/24/2023] [Indexed: 07/25/2023] Open
Abstract
Most worldwide policy frameworks, including the United Nations Sustainable Development Goals, highlight soil as a key non-renewable natural resource which should be rigorously preserved to achieve long-term global sustainability. Although some soil is naturally enriched with heavy metals (HMs), a series of anthropogenic activities are known to contribute to their redistribution, which may entail potentially harmful environmental and/or human health effects if certain concentrations are exceeded. If this occurs, the implementation of rehabilitation strategies is highly recommended. Although there are many publications dealing with the elimination of HMs using different methodologies, most of those works have been done in laboratories and there are not many comprehensive reviews about the results obtained under field conditions. Throughout this review, we examine the different methodologies that have been used in real scenarios and, based on representative case studies, we present the evolution and outcomes of the remediation strategies applied in real soil-contamination events where legacies of past metal mining activities or mine spills have posed a serious threat for soil conservation. So far, the best efficiencies at field-scale have been reported when using combined strategies such as physical containment and assisted-phytoremediation. We have also introduced the emerging problem of the heavy metal contamination of agricultural soils and the different strategies implemented to tackle this problem. Although remediation techniques used in real scenarios have not changed much in the last decades, there are also encouraging facts for the advances in this field. Thus, a growing number of mining companies publicise in their webpages their soil remediation strategies and efforts; moreover, the number of scientific publications about innovative highly-efficient and environmental-friendly methods is also increasing. In any case, better cooperation between scientists and other soil-related stakeholders is still required to improve remediation performance.
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Affiliation(s)
- Iván Sánchez-Castro
- Estación Experimental Del Zaidín (CSIC), Profesor Albareda 1, 18008, Granada, Spain
| | - Lázaro Molina
- Estación Experimental Del Zaidín (CSIC), Profesor Albareda 1, 18008, Granada, Spain
| | - María-Ángeles Prieto-Fernández
- Misión Biolóxica de Galicia (CSIC), Sede Santiago de Compostela, Avda de Vigo S/n. Campus Vida, 15706, Santiago de Compostela, Spain
| | - Ana Segura
- Estación Experimental Del Zaidín (CSIC), Profesor Albareda 1, 18008, Granada, Spain
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Dolui D, Hasanuzzaman M, Fujita M, Adak MK. 2,4-D mediated moderation of aluminum tolerance in Salvinia molesta D. Mitch. with regards to bioexclusion and related physiological and metabolic changes. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 26:27-44. [PMID: 37259532 DOI: 10.1080/15226514.2023.2216311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We examined the efficacy of 2,4-dichlorophenoxy acetic acid (2,4-D; 500 µM) in enhancing the potential of Salvinia species for tolerance to aluminum (Al) toxicity (240 and 480 µM, seven days). Salvinia showed better efficacy in removal of toxicity of Al by sorption mechanism with changes of bond energy shifting on cell wall residues and surface structure. Plants recorded tolerance to Al concentration (480 µM) when pretreated with 2,4-D through adjustment of relative water content, proline content, osmotic potential, and improved the pigment fluorescence for energy utilization under Al stress. Photosynthetic activities with regards to NADP-malic enzyme and malic dehydrogenase and sugar metabolism with wall and cytosolic invertase activities were strongly correlated with compatible solutes. A less membrane peroxidation and protein carbonylation had reduced ionic loss over the membrane that was studied with reduced electrolyte leakage with 2,4-D pretreated plants. Membrane stabilization was also recorded with higher ratio of K+ to Na+, thereby suggesting roles of 2,4-D in ionic balance. Better sustenance of enzymatic antioxidation with peroxidase and glutathione metabolism reduced reactive oxygen species accumulation and save the plant for oxidative damages. Moreover, gene polymorphism for antioxidant, induced by 2,4-D varied through Al concentrations would suggest an improved biomarker for tolerance. Collectively, analysis and discussion of plant's responses assumed that auxin herbicide could be a potential phytoprotectant for Salvinia as well as improving the stability to Al toxicity and its bioremediation efficacy.
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Affiliation(s)
- Debabrata Dolui
- Department of Botany, Plant Physiology, Biochemistry and Plant Molecular Biology Research Unit, University of Kalyani, Kalyani, India
| | - Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
| | - Masayuki Fujita
- Laboratory of Plant Stress Responses, Faculty of Agriculture, Kagawa University, Takamatsu, Japan
| | - Malay Kumar Adak
- Department of Botany, Plant Physiology, Biochemistry and Plant Molecular Biology Research Unit, University of Kalyani, Kalyani, India
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48
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Yang X, Zhao SP, Xi HL. Physiological response mechanism of alfalfa seedlings roots to typical explosive cyclotrimethylene trinitramine (RDX). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 200:107756. [PMID: 37216824 DOI: 10.1016/j.plaphy.2023.107756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/03/2023] [Accepted: 05/09/2023] [Indexed: 05/24/2023]
Abstract
This study explored the physiological response mechanism of alfalfa seedlings roots to a typical explosive, cyclotrimethylenetrinitramine (RDX), so as to improve the efficiency of phytoremediation. The response of plants to different levels of RDX were analyzed from the perspectives of mineral nutrition and metabolic networks. Exposure to RDX at 10-40 mg L-1 had no significant effect on root morphology, but the plant roots significantly accumulated RDX in solution (17.6-40.9%). A 40 mg L-1 RDX exposure induced cell gap expansion and disrupted root mineral metabolism, The key response elements, P, Cu, and Mg, were significantly increased by 1.60-1.66, 1.74-1.90, and 1.85-2.50 times, respectively. The 40 mg L-1 RDX exposure also significantly disturbed root basal metabolism, resulting in a total of 197 differentially expressed metabolites (DEMs). The main response metabolites were lipids and lipid-like molecules, and the key physiological response pathways were arginine biosynthesis and aminoacyl-tRNA biosynthesis. A total of 19 DEMs in root metabolic pathways, including L-arginine, L-asparagine, and ornithine, were significantly responsive to RDX exposure. The physiological response mechanism of roots to RDX therefore involve mineral nutrition and metabolic networks and are of great significance for improving phytoremediation efficiency.
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Affiliation(s)
- Xu Yang
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - San-Ping Zhao
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Hai-Ling Xi
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China.
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Lu Y, Zhang Z, Wang Y, Peng F, Yang Z, Li H. Uptake, tolerance, and detoxification mechanisms of antimonite and antimonate in Boehmeria nivea L. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 334:117504. [PMID: 36801690 DOI: 10.1016/j.jenvman.2023.117504] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 02/03/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Boehmeria nivea L. (ramie) is a promising phytoremediation plant for antimony (Sb)-contaminated soils. However, the uptake, tolerance, and detoxification mechanisms of ramie to Sb, which are the basis for finding efficient phytoremediation strategies, remain unclear. In the present study, ramie was exposed to 0, 1, 10, 50, 100, and 200 mg/L of antimonite (Sb(III)) or antimonate (Sb(V)) for 14 days in hydroponic culture. The Sb concentration, speciation, subcellular distribution, and antioxidant and ionomic responses in ramie were investigated. The results illustrated that ramie was more effective in the uptake of Sb(III) than Sb(V). Most of the Sb accumulated in ramie roots, with the highest level reaching 7883.58 mg/kg. Sb(V) was the predominant species in leaves, with 80.77-96.38% and 100% in the Sb(III) and Sb(V) treatments, respectively. Immobilization of Sb on the cell wall and leaf cytosol was the primary mechanism of accumulation. Superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) contributed significantly to root defense against Sb(III), while CAT and glutathione peroxidase (GPX) were the major antioxidants in leaves. CAT and POD played crucial roles in the defense against Sb(V). B, Ca, K, Mg, and Mn in Sb(V)-treated leaves and K and Cu in Sb(III)-treated leaves may be related to the biological processes of Sb toxicity mitigation. This study is the first to investigate the ionomic responses of plants toward Sb and could provide valuable information for the phytoremediation of Sb-polluted soils.
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Affiliation(s)
- Yi Lu
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha, 410083, China
| | - Zhaoxue Zhang
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha, 410083, China; Key Laboratory of Testing and Tracing of Rare Earth Products for State Market Regulation, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Yingyang Wang
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha, 410083, China
| | - Fangyuan Peng
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha, 410083, China
| | - Zhaoguang Yang
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha, 410083, China
| | - Haipu Li
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha, 410083, China.
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50
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Quan L, Shi L, Zhang S, Yao Q, Yang Q, Zhu Y, Liu Y, Lian C, Chen Y, Shen Z, Duan K, Xia Y. Ectomycorrhizal fungi, two species of Laccaria, differentially block the migration and accumulation of cadmium and copper in Pinus densiflora. CHEMOSPHERE 2023; 334:138857. [PMID: 37187383 DOI: 10.1016/j.chemosphere.2023.138857] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 04/09/2023] [Accepted: 05/04/2023] [Indexed: 05/17/2023]
Abstract
The root tips of host plant species can establish ectomycorrhizae with their fungal partners, thereby altering the responses of the host plants to heavy metal (HM) toxicity. Here, two species of Laccaria, L. bicolor and L. japonica, were investigated in symbiosis with Pinus densiflora to study their potential for promotion of phytoremediation of HM-contaminated soils in pot experiments. The results showed that L. japonica had significantly higher dry biomass than L. bicolor in mycelia grown on modified Melin-Norkrans medium containing elevated levels of cadmium (Cd) or copper (Cu). Meanwhile, the accumulations of Cd or Cu in L. bicolor mycelia were much higher than that in L. japonica at the same level of Cd or Cu. Therefore, L. japonica displayed a stronger tolerance to HM toxicity than L. bicolor in situ. Compared with non-mycorrhizal P. densiflora seedlings, inoculation with two Laccaria species significantly increased the growth of P. densiflora seedlings in absence or presence of HM. The mantle of host roots blocked the uptake and migration of HM, which led to the decrease of Cd and Cu accumulation in the P. densiflora shoots and roots, except for the root Cd accumulation of L. bicolor-mycorrhizal plants when 25 mg kg-1 Cd exposure. Furthermore, HM distribution in mycelia showed Cd and Cu are mainly retained in the cell walls of mycelia. These results provide strong evidence that the two species of Laccaria in this system may have different strategies to assist host tree against HM toxicity.
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Affiliation(s)
- Lingtong Quan
- College of Life Sciences, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource, Nanjing Agricultural University, Nanjing, 210095, China
| | - Liang Shi
- College of Life Sciences, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shijie Zhang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing, 210014, China
| | - Qian Yao
- China Tobacco Henan Industrial Co., Ltd, Zhengzhou, 450000, China
| | - Qi Yang
- China Tobacco Henan Industrial Co., Ltd, Zhengzhou, 450000, China
| | - Yongwei Zhu
- College of Life Sciences, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yanli Liu
- Jinpu Landscape Architecture Limited Company, Nanjing, 211100, China
| | - Chunlan Lian
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo, Tokyo, 188-0002, Japan
| | - Yahua Chen
- College of Life Sciences, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhenguo Shen
- College of Life Sciences, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Kun Duan
- China Tobacco Henan Industrial Co., Ltd, Zhengzhou, 450000, China.
| | - Yan Xia
- College of Life Sciences, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource, Nanjing Agricultural University, Nanjing, 210095, China.
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