1
|
Li S, He Z, Qiu W, Yu M, Wu L, Han X, Zhuo R. SpCTP3 from the hyperaccumulator Sedum plumbizincicola positively regulates cadmium tolerance by interacting with SpMDH1. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134517. [PMID: 38739960 DOI: 10.1016/j.jhazmat.2024.134517] [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: 04/01/2024] [Accepted: 04/30/2024] [Indexed: 05/16/2024]
Abstract
Cadmium (Cd) is a heavy metal pollutant mainly originating from the discharge of industrial sewage, irrigation with contaminated water, and the use of fertilizers. The phytoremediation of Cd polluted soil depends on the identification of the associated genes in hyperaccumulators. Here, a novel Cd tolerance gene (SpCTP3) was identified in hyperaccumulator Sedum plumbizincicola. The results of Cd2+ binding and thermodynamic analyses, revealed the CXXC motif in SpCTP3 functions is a Cd2+ binding site. A mutated CXXC motif decreased binding to Cd by 59.93%. The subcellular localization analysis suggested that SpCTP3 is primarily a cytoplasmic protein. Additionally, the SpCTP3-overexpressing (OE) plants were more tolerant to Cd and accumulated more Cd than wild-type Sedum alfredii (NHE-WT). The Cd concentrations in the cytoplasm of root and leaf cells were significantly higher (53.75% and 71.87%, respectively) in SpCTP3-OE plants than in NHE-WT. Furthermore, malic acid levels increased and decreased in SpCTP3-OE and SpCTP3-RNAi plants, respectively. Moreover, SpCTP3 interacted with malate dehydrogenase 1 (MDH1). Thus, SpCTP3 helps regulate the subcellular distribution of Cd and increases Cd accumulation when it is overexpressed in plants, ultimately Cd tolerance through its interaction with SpMDH1. This study provides new insights relevant to improving the Cd uptake by Sedum plumbizincicola.
Collapse
Affiliation(s)
- Shaocui Li
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, the Research Institute of Subtropical Forestry Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, PR China; Zhejiang Xiaoshan Institute of Cotton & Bast Fiber Crops, Zhejiang Institute of Landscape Plants and Flowers, Zhejiang Academy of Agricultural Sciences, Hangzhou 311251, China
| | - Zhengquan He
- Key Laboratory of Three Gorges Regional Plant Genetic & Germplasm Enhancement (CTGU)/ Biotechnology Research Center, China Three Gorges University, Yichang 443002, Hubei, PR China
| | - Wenmin Qiu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, the Research Institute of Subtropical Forestry Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, PR China
| | - Miao Yu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, the Research Institute of Subtropical Forestry Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, PR China
| | - Longhua Wu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China
| | - Xiaojiao Han
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, the Research Institute of Subtropical Forestry Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, PR China.
| | - Renying Zhuo
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, the Research Institute of Subtropical Forestry Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, PR China.
| |
Collapse
|
2
|
Guo Z, Zhu J, Zheng Y, Wang D, Zhang J, Jiang Z, Lu X, Jia R, Li X. Unveiling the variability in cadmium accumulation and tolerance characteristics: a comparative study of Basma and Yunyan 87 tobacco varieties. ENVIRONMENTAL TECHNOLOGY 2024:1-11. [PMID: 38623611 DOI: 10.1080/09593330.2024.2343127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 04/04/2024] [Indexed: 04/17/2024]
Abstract
Tobacco (Nicotiana tabacum L.) shows promise for remediating Cd-contaminated soil due to its significant Cd accumulation capabilities. Although various tobacco varieties exhibit distinct Cd bioaccumulation capacities, a comprehensive understanding of the underlying mechanisms is lacking. This study, conducted using hydroponics, explores differences in Cd accumulation and tolerance mechanisms between two tobacco varieties, Basma and Yunyan 87. The results showed that Cd stress reduced the dry weight, tolerance index, and root morphology for both varieties. Basma exhibited a relatively smaller decline in these indices compared to Yunyan 87. Moreover, Basma demonstrated a higher Cd bioconcentration factor (BCF), concentration, and accumulated content, signifying its superior tolerance and bioaccumulation capacity to Cd compared to Yunyan 87. The Carbonyl Cyanide3-ChloroPhenylhydrazone (CCCP) addition resulted in reduced Cd accumulation and BCFs in both tobacco species. This effect was more pronounced in Basma, suggesting that Basma relies more on an active transport process than Yunyan 87. This could potentially explain its enhanced bioaccumulation ability. Subcellular Cd distribution analysis revealed Basma's preference for distributing Cd in soluble fractions, while Yunyan 87 favoured the cell wall fractions. Transmission electron microscope showed that Basma's organelles were less damaged than Yunyan 87's under Cd stress, possibly contributing to the superior tolerance of Basma. Therefore, these results provided a theoretical foundation for development of Cd-contaminated soil tobacco remediation technology.
Collapse
Affiliation(s)
- Ziang Guo
- College of Forestry, Henan Agricultural University, Zhengzhou, People's Republic of China
| | - Jinhui Zhu
- College of Forestry, Henan Agricultural University, Zhengzhou, People's Republic of China
| | - Ye Zheng
- College of Forestry, Henan Agricultural University, Zhengzhou, People's Republic of China
| | - Dan Wang
- College of Forestry, Henan Agricultural University, Zhengzhou, People's Republic of China
| | - Jiahui Zhang
- College of Forestry, Henan Agricultural University, Zhengzhou, People's Republic of China
| | - Zhuoxin Jiang
- College of Forestry, Henan Agricultural University, Zhengzhou, People's Republic of China
| | - Xiazi Lu
- Ecological Environment Geo-Service Center of Henan Geological Bureau, Zhengzhou, People's Republic of China
| | - Ruiqi Jia
- Zhong Yun International Engineering Co., Ltd, Zhengzhou, People's Republic of China
| | - Xuanzhen Li
- College of Forestry, Henan Agricultural University, Zhengzhou, People's Republic of China
| |
Collapse
|
3
|
Charagh S, Hui S, Wang J, Raza A, Zhou L, Xu B, Zhang Y, Sheng Z, Tang S, Hu S, Hu P. Unveiling Innovative Approaches to Mitigate Metals/Metalloids Toxicity for Sustainable Agriculture. PHYSIOLOGIA PLANTARUM 2024; 176:e14226. [PMID: 38410873 DOI: 10.1111/ppl.14226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/21/2024] [Accepted: 01/30/2024] [Indexed: 02/28/2024]
Abstract
Due to anthropogenic activities, environmental pollution of heavy metals/metalloids (HMs) has increased and received growing attention in recent decades. Plants growing in HM-contaminated soils have slower growth and development, resulting in lower agricultural yield. Exposure to HMs leads to the generation of free radicals (oxidative stress), which alters plant morpho-physiological and biochemical pathways at the cellular and tissue levels. Plants have evolved complex defense mechanisms to avoid or tolerate the toxic effects of HMs, including HMs absorption and accumulation in cell organelles, immobilization by forming complexes with organic chelates, extraction via numerous transporters, ion channels, signaling cascades, and transcription elements, among others. Nonetheless, these internal defensive mechanisms are insufficient to overcome HMs toxicity. Therefore, unveiling HMs adaptation and tolerance mechanisms is necessary for sustainable agriculture. Recent breakthroughs in cutting-edge approaches such as phytohormone and gasotransmitters application, nanotechnology, omics, and genetic engineering tools have identified molecular regulators linked to HMs tolerance, which may be applied to generate HMs-tolerant future plants. This review summarizes numerous systems that plants have adapted to resist HMs toxicity, such as physiological, biochemical, and molecular responses. Diverse adaptation strategies have also been comprehensively presented to advance plant resilience to HMs toxicity that could enable sustainable agricultural production.
Collapse
Affiliation(s)
- Sidra Charagh
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, China
| | - Suozhen Hui
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, China
| | - Jingxin Wang
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, China
| | - Ali Raza
- Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Liang Zhou
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, China
| | - Bo Xu
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, China
| | - Yuanyuan Zhang
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, China
| | - Zhonghua Sheng
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, China
| | - Shaoqing Tang
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, China
| | - Shikai Hu
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, China
| | - Peisong Hu
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, China
| |
Collapse
|
4
|
Fan X, Du C, Zhou L, Fang Y, Zhang G, Zou H, Yu G, Wu H. Biochar from phytoremediation plant residues: a review of its characteristics and potential applications. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:16188-16205. [PMID: 38329669 DOI: 10.1007/s11356-024-32243-y] [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: 11/01/2023] [Accepted: 01/25/2024] [Indexed: 02/09/2024]
Abstract
Phytoremediation is a cost-effective and eco-friendly plant-based approach promising technique to repair heavy metal-contaminated soils. However, a significant quantity of plant residues needs to be properly treated and utilized. Pyrolysis is an effective technology for converting residues to biochar, which can solve the problem and avoid secondary contamination. This paper reviews the generation, and physicochemical properties of biochar from phytoremediation residues, and its application in soil improvement, environmental remediation, and carbon sequestration. In spite of this, it is important to be aware of the potential toxicity of heavy metals in biochar and the environmental risks of biochar before applying it to practical applications. Future challenges in the production and application of residue-derived biochar include the rational selection of pyrolysis parameters and proper handling of potentially hazardous components in the biochar.
Collapse
Affiliation(s)
- Xueyan Fan
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, People's Republic of China
| | - Chunyan Du
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, People's Republic of China
| | - Lu Zhou
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China.
- Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, People's Republic of China.
| | - Yi Fang
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, People's Republic of China
| | - Guanhao Zhang
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, People's Republic of China
| | - Honghao Zou
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, People's Republic of China
| | - Guanlong Yu
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, People's Republic of China
| | - Haipeng Wu
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, People's Republic of China
| |
Collapse
|
5
|
Kaushik S, Ranjan A, Sidhu A, Singh AK, Sirhindi G. Cadmium toxicity: its' uptake and retaliation by plant defence system and ja signaling. Biometals 2024:10.1007/s10534-023-00569-8. [PMID: 38206521 DOI: 10.1007/s10534-023-00569-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 12/05/2023] [Indexed: 01/12/2024]
Abstract
Cadmium (Cd+2) renders multifarious environmental stresses and highly toxic to nearly all living organisms including plants. Cd causes toxicity by unnecessary augmentation of ROS that targets essential molecules and fundamental processes in plants. In response, plants outfitted a repertory of mechanisms to offset Cd toxicity. The main elements of these are Cd chelation, sequestration into vacuoles, and adjustment of Cd uptake by transporters and escalation of antioxidative mechanism. Signal molecules like phytohormones and reactive oxygen species (ROS) activate the MAPK cascade, the activation of the antioxidant system andsynergistic crosstalk between different signal molecules in order to regulate plant responses to Cd toxicity. Transcription factors like WRKY, MYB, bHLH, bZIP, ERF, NAC etc., located downstream of MAPK, and are key factors in regulating Cd toxicity responses in plants. Apart from this, MAPK and Ca2+signaling also have a salient involvement in rectifying Cd stress in plants. This review highlighted the mechanism of Cd uptake, translocation, detoxification and the key role of defense system, MAPKs, Ca2+ signals and jasmonic acid in retaliating Cd toxicity via synchronous management of various other regulators and signaling components involved under stress condition.
Collapse
Affiliation(s)
- Shruti Kaushik
- Department of Botany, Punjabi University, Patiala, Punjab, 147002, India
| | - Alok Ranjan
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
- Department of Biotechnology, Patna Women's College, Bihar, 800001, India
| | - Anmol Sidhu
- Department of Botany, Punjabi University, Patiala, Punjab, 147002, India
| | - Anil Kumar Singh
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
| | - Geetika Sirhindi
- Department of Botany, Punjabi University, Patiala, Punjab, 147002, India.
| |
Collapse
|
6
|
Chaudhary MT, Majeed S, Rana IA, Ali Z, Jia Y, Du X, Hinze L, Azhar MT. Impact of salinity stress on cotton and opportunities for improvement through conventional and biotechnological approaches. BMC PLANT BIOLOGY 2024; 24:20. [PMID: 38166652 PMCID: PMC10759391 DOI: 10.1186/s12870-023-04558-4] [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: 01/27/2023] [Accepted: 10/24/2023] [Indexed: 01/05/2024]
Abstract
Excess salinity can affect the growth and development of all plants. Salinization jeopardizes agroecosystems, induces oxidative reactions in most cultivated plants and reduces biomass which affects crop yield. Some plants are affected more than others, depending upon their ability to endure the effects of salt stress. Cotton is moderately tolerant to salt stress among cultivated crops. The fundamental tenet of plant breeding is genetic heterogeneity in available germplasm for acquired characteristics. Variation for salinity tolerance enhancing parameters (morphological, physiological and biochemical) is a pre-requisite for the development of salt tolerant cotton germplasm followed by indirect selection or hybridization programs. There has been a limited success in the development of salt tolerant genotypes because this trait depends on several factors, and these factors as well as their interactions are not completely understood. However, advances in biochemical and molecular techniques have made it possible to explore the complexity of salt tolerance through transcriptomic profiling. The focus of this article is to discuss the issue of salt stress in crop plants, how it alters the physiology and morphology of the cotton crop, and breeding strategies for the development of salinity tolerance in cotton germplasm.
Collapse
Affiliation(s)
| | - Sajid Majeed
- Federal Seed Certification and Registration Department, Ministry of National Food Security and Research, Islamabad, 44090, Pakistan
| | - Iqrar Ahmad Rana
- Center of Agricultural Biochemistry and Biotechnology/Centre of Advanced Studies in Agriculture and Food Security, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Zulfiqar Ali
- Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Yinhua Jia
- State Key Laboratory of Cotton Biology, Institute of Cotton Research Chinese Academy of Agricultural Science, Anyang, 455000, China
| | - Xiongming Du
- State Key Laboratory of Cotton Biology, Institute of Cotton Research Chinese Academy of Agricultural Science, Anyang, 455000, China
| | - Lori Hinze
- US Department of Agriculture, Southern Plains Agricultural Research Center, College Station, TX, 77845, USA
| | - Muhammad Tehseen Azhar
- Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, 38040, Pakistan.
- School of Agriculture Sciences, Zhengzhou University, Zhengzhou, 450000, China.
| |
Collapse
|
7
|
Li Y, Rahman SU, Qiu Z, Shahzad SM, Nawaz MF, Huang J, Naveed S, Li L, Wang X, Cheng H. Toxic effects of cadmium on the physiological and biochemical attributes of plants, and phytoremediation strategies: A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 325:121433. [PMID: 36907241 DOI: 10.1016/j.envpol.2023.121433] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 02/20/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
Anthropogenic activities pose a more significant threat to the environment than natural phenomena by contaminating the environment with heavy metals. Cadmium (Cd), a highly poisonous heavy metal, has a protracted biological half-life and threatens food safety. Plant roots absorb Cd due to its high bioavailability through apoplastic and symplastic pathways and translocate it to shoots through the xylem with the help of transporters and then to the edible parts via the phloem. The uptake and accumulation of Cd in plants pose deleterious effects on plant physiological and biochemical processes, which alter the morphology of vegetative and reproductive parts. In vegetative parts, Cd stunts root and shoot growth, photosynthetic activities, stomatal conductance, and overall plant biomass. Plants' male reproductive parts are more prone to Cd toxicity than female reproductive parts, ultimately affecting their grain/fruit production and survival. To alleviate/avoid/tolerate Cd toxicity, plants activate several defense mechanisms, including enzymatic and non-enzymatic antioxidants, Cd-tolerant gene up-regulations, and phytohormonal secretion. Additionally, plants tolerate Cd through chelating and sequestering as part of the intracellular defensive mechanism with the help of phytochelatins and metallothionein proteins, which help mitigate the harmful effects of Cd. The knowledge on the impact of Cd on plant vegetative and reproductive parts and the plants' physiological and biochemical responses can help selection of the most effective Cd-mitigating/avoiding/tolerating strategy to manage Cd toxicity in plants.
Collapse
Affiliation(s)
- Yanliang Li
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China; Dongguan Key Laboratory of Water Pollution Control and Ecological Safety Regulation, Dongguan, Guangdong, 523808, China
| | - Shafeeq Ur Rahman
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China; MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Zhixin Qiu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China; Dongguan Key Laboratory of Water Pollution Control and Ecological Safety Regulation, Dongguan, Guangdong, 523808, China
| | - Sher Muhammad Shahzad
- Department of Soil and Environmental Sciences, College of Agriculture, University of Sargodha, Sargodha, Punjab, Pakistan
| | | | - Jianzhi Huang
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China; Dongguan Key Laboratory of Water Pollution Control and Ecological Safety Regulation, Dongguan, Guangdong, 523808, China
| | - Sadiq Naveed
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Lei Li
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China; Dongguan Key Laboratory of Water Pollution Control and Ecological Safety Regulation, Dongguan, Guangdong, 523808, China
| | - Xiaojie Wang
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Hefa Cheng
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.
| |
Collapse
|
8
|
Mocek-Płóciniak A, Mencel J, Zakrzewski W, Roszkowski S. Phytoremediation as an Effective Remedy for Removing Trace Elements from Ecosystems. PLANTS (BASEL, SWITZERLAND) 2023; 12:1653. [PMID: 37111876 PMCID: PMC10141480 DOI: 10.3390/plants12081653] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/07/2023] [Accepted: 04/12/2023] [Indexed: 06/19/2023]
Abstract
The pollution of soil by trace elements is a global problem. Conventional methods of soil remediation are often inapplicable, so it is necessary to search intensively for innovative and environment-friendly techniques for cleaning up ecosystems, such as phytoremediation. Basic research methods, their strengths and weaknesses, and the effects of microorganisms on metallophytes and plant endophytes resistant to trace elements (TEs) were summarised and described in this manuscript. Prospectively, bio-combined phytoremediation with microorganisms appears to be an ideal, economically viable and environmentally sound solution. The novelty of the work is the description of the potential of "green roofs" to contribute to the capture and accumulation of many metal-bearing and suspended dust and other toxic compounds resulting from anthropopressure. Attention was drawn to the great potential of using phytoremediation on less contaminated soils located along traffic routes and urban parks and green spaces. It also focused on the supportive treatments for phytoremediation using genetic engineering, sorbents, phytohormones, microbiota, microalgae or nanoparticles and highlighted the important role of energy crops in phytoremediation. Perceptions of phytoremediation on different continents are also presented, and new international perspectives are presented. Further development of phytoremediation requires much more funding and increased interdisciplinary research in this direction.
Collapse
Affiliation(s)
- Agnieszka Mocek-Płóciniak
- Department of Soil Science and Microbiology, Poznan University of Life Sciences, Szydłowska 50, 60-656 Poznan, Poland
| | - Justyna Mencel
- Department of Soil Science and Microbiology, Poznan University of Life Sciences, Szydłowska 50, 60-656 Poznan, Poland
| | - Wiktor Zakrzewski
- Regional Chemical and Agricultural Station in Poznan, Sieradzka 29, 60-163 Poznan, Poland
| | - Szymon Roszkowski
- Department of Geriatrics, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Jagiellonska 13/15, 85-067 Bydgoszcz, Poland
| |
Collapse
|
9
|
Singh AD, Khanna K, Kour J, Dhiman S, Bhardwaj T, Devi K, Sharma N, Kumar P, Kapoor N, Sharma P, Arora P, Sharma A, Bhardwaj R. Critical review on biogeochemical dynamics of mercury (Hg) and its abatement strategies. CHEMOSPHERE 2023; 319:137917. [PMID: 36706814 DOI: 10.1016/j.chemosphere.2023.137917] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/21/2022] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Mercury (Hg) is among the naturally occurring heavy metal with elemental, organic, and inorganic distributions in the environment. Being considered a global pollutant, high pools of Hg-emissions ranging from >6000 to 8000 Mg Hg/year get accumulated by the natural and anthropogenic activities in the atmosphere. These toxicants have high persistence, toxicity, and widespread contamination in the soil, water, and air resources. Hg accumulation inside the plant parts amplifies the traces of toxic elements in the linking food chains, leads to Hg exposure to humans, and acts as a potential genotoxic, neurotoxic and carcinogenic entity. However, excessive Hg levels are equally toxic to the plant system and severely disrupt the physiological and metabolic processes in plants. Thus, a plausible link between Hg-concentration and its biogeochemical behavior is highly imperative to analyze the plant-soil interactions. Therefore, it is requisite to bring these toxic contaminants in between the acceptable limits to safeguard the environment. Plants efficiently incorporate or absorb the bioavailable Hg from the soil thus a constructive understanding of Hg uptake, translocation/sequestration involving specific heavy metal transporters, and detoxification mechanisms are drawn. Whereas recent investigations in biological remediation of Hg provide insights into the potential associations between the plants and microbes. Furthermore, intense research on Hg-induced antioxidants, protein networks, metabolic mechanisms, and signaling pathways is required to understand these bioremediations techniques. This review sheds light on the mercury (Hg) sources, pollution, biogeochemical cycles, its uptake, translocation, and detoxification methods with respect to its molecular approaches in plants.
Collapse
Affiliation(s)
- Arun Dev Singh
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India.
| | - Kanika Khanna
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Jaspreet Kour
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Shalini Dhiman
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Tamanna Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Kamini Devi
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Neerja Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Pardeep Kumar
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Nitika Kapoor
- P.G. Department of Botany, Hans Raj Mahila Maha Vidyalaya, Jalandhar, Punjab, India
| | - Priyanka Sharma
- School of Bioengineering Sciences and Research, MIT-ADT University, Pune, Maharashtra, India
| | - Priya Arora
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India.
| |
Collapse
|
10
|
Wang Z, Ni L, Liu L, Yuan H, Gu C. IlAP2, an AP2/ERF Superfamily Gene, Mediates Cadmium Tolerance by Interacting with IlMT2a in Iris lactea var. chinensis. PLANTS (BASEL, SWITZERLAND) 2023; 12:823. [PMID: 36840170 PMCID: PMC9959467 DOI: 10.3390/plants12040823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 02/10/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Cadmium (Cd) stress has a major impact on ecosystems, so it is important to find suitable Cd-tolerant plants while elucidating the responsible molecular mechanism for phytoremediation to manage Cd soil contamination. Iris lactea var. chinensis is an ornamental perennial groundcover plant with strong tolerance to Cd. Previous studies found that IlAP2, an AP2/ERF superfamily gene, may be an interacting partner of the metallothionein gene IlMT2a, which plays a key role in Cd tolerance. To study the role of IlAP2 in regulating Cd tolerance in I. lactea, we analyzed its regulation function and mechanism based on a yeast two-hybrid assay, a bimolecular fluorescence complementation test, quantitative real-time PCR, transgenics and transcriptome sequencing. The results showed that IlAP2 interacts with IlMT2a and may cooperate with other transcription factors to regulate genes involved in signal transduction and plant hormones, leading to reduced Cd toxicity by hindering Cd transport. These findings provide insights into the mechanism of IlAP2-mediated stress responses to Cd and important gene resources for improving plant stress tolerance in phytoremediation.
Collapse
Affiliation(s)
- Zhiquan Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing 210014, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Longjie Ni
- College of Forest Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Liangqin Liu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing 210014, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Haiyan Yuan
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing 210014, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
| | - Chunsun Gu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing 210014, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Nanjing 210014, China
- College of Forest Sciences, Nanjing Forestry University, Nanjing 210037, China
| |
Collapse
|
11
|
Narayanan M, Karuppusamy I, Alshiekheid M, Sabour A, Chi NTL, Pugazhendhi A. Phytoremediation potential of Gossypium hirsutum on abandoned polluted chromium sludge soil with the amalgamation of Streptomyces tritici D5. CHEMOSPHERE 2022; 306:135526. [PMID: 35780990 DOI: 10.1016/j.chemosphere.2022.135526] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/25/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
The phytoremediation potency of Gossypium hirsutum was explored in this research under the influence of pre-identified metal tolerant Streptomyces tritici D5 in Cr enriched sludge soil using various treatment sets (I to V) in a greenhouse setting. Interestingly, the G. hirsutum remarkable remediate the Cr metal from the Cr enriched sludge soil under diluted (50:50) condition in 90 days of greenhouse experiment. The S. tritici D5 also effectively support the growth and phytoremediation competence of G. hirsutum. This was evidenced by the under the diluted (set III) condition the growth and major biomolecules such as protein, carbohydrate, and chlorophyll content of G. hirsutum were considerably increased in quantity. Hence, the phytoremediation potential of G. hirsutum was effective at soil diluted with fertile and xenobiotics free soil with dilution ratio of 50:50 (set III) and followed by 75:25 (set II) ratio. Thus, under diluted conditions (50:50) G. hirsutum seed coated with S. tritici D5 showed an outstanding phytoremediation process. Therefore, this method can be implemented to the field level study to assess the metal removal prospects of this environmentally friendly method.
Collapse
Affiliation(s)
- Mathiyazhagan Narayanan
- Division of Research and Innovations, Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Science, Chennai, 602 105, Tamil Nadu, India
| | - Indira Karuppusamy
- Research Center for Strategic Materials, Corrosion Resistant Steel Group, National Institute for Materials Science (NIMS), Tsukuba, Japan
| | - Maha Alshiekheid
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh, 11451, Saudi Arabia
| | - Amal Sabour
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh, 11451, Saudi Arabia
| | - Nguyen Thuy Lan Chi
- School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam.
| | - Arivalagan Pugazhendhi
- Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam.
| |
Collapse
|
12
|
Narayanan M, Muthusamy M, Alshiekheid M, Sabour A, Lan Chi NT, Pugazhendhi A. Influence of Brevibacillus borestelensis strains on phytoremediation potential and biomolecules contents of Jatropha curcas on diluted chromium sludge soil. CHEMOSPHERE 2022; 305:135345. [PMID: 35738403 DOI: 10.1016/j.chemosphere.2022.135345] [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: 03/13/2022] [Revised: 05/25/2022] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
This study was carried out in order to find an environmentally friendly solution to recover the abandoned Cr-enriched sludge soil, which causes a variety of environmental issues. Hence, in this research the influence of pre-identified Brevibacillus borstelensis UTM105 and Brevibacillus borstelensis AK2 coated Jatropha curcas seed in phytoremediation process with various treatment groups (group A to F) under greenhouse condition. Furthermore, their influence on growth, biomolecules (total proteins and total chlorophyll) content, and antioxidant activity of J. curcas during the phytoremediation process were analyzed. Surprisingly, the outstanding phytoremediation was recorded in group F treatment. In these groups, Group E. accompanied it, and the Cr was reduced by up to 31.17% and 25.65%, respectively, in treated soil after 90 days of treatment. Among these two bacterial strains, the B. borstelensis AK2 had greatest effect on J. curcas growth, the yield of biomass, total protein, total chlorophyll, and antioxidant activity and it followed by B. borstelensis UTM105. These phytoremediation potential of J. curcas was effective at soil diluted with fertile and xenobiotics free soil with dilution ratio of 50:50 and followed by 75:25 ratio. Because under undiluted Cr sludge soil condition seed germination has not occurred even though the seed has been coated with potential bacterial strains and soil blend with sterilized goat manure. Hence, under diluted conditions J. curcas seed coated with B. borstelensis AK2 showed an outstanding phytoremediation process. Hence, this approach can be applied to a field study to assess the metal removal potential of this sustainable approach.
Collapse
Affiliation(s)
- Mathiyazhagan Narayanan
- Division of Research and Innovations, Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, 602 105, Tamil Nadu, India
| | - Muthusamy Muthusamy
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences (NAS), RDA, Jeonju, 54874, South Korea
| | - Maha Alshiekheid
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh, 11451, Saudi Arabia
| | - Amal Sabour
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh, 11451, Saudi Arabia
| | - Nguyen Thuy Lan Chi
- School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam.
| | - Arivalagan Pugazhendhi
- Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam.
| |
Collapse
|
13
|
Amin H, Ahmed Arain B, Jahangir TM, Abbasi AR, Abbasi MS, Amin F. Comparative zinc tolerance and phytoremediation potential of four biofuel plant species. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:1014-1028. [PMID: 36134746 DOI: 10.1080/15226514.2022.2125496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Soil pollution has become a serious environmental problem worldwide due to rapid industrialization and urbanization. Zinc (Zn) contamination has raised concerns about potential effects on plants and human health. This study was conducted to assess the capability of four biofuel plants: Abelmoschus esculentus, Avena sativa, Guizotia abyssinica, and Glycine max to remediate and restore Zn contaminated soil. Selected plants were grown in soil exposed to different Zn treatments (50, 100, 200, 300, 400, 600, 800 and 1000 mg Zn kg-1) for 12 weeks. Soil without spike taken as control. Zn induced toxicity significantly (p < 0.05) reduced seed germination and inhibited plant growth and leaf chlorophyll content. The investigated plants can tolerate a soil content of 800 mg Zn kg-1 with the exception of A. sativa, which was most tolerant to high Zn concentrations (1000 mg Zn kg-1) for all growth criteria. Moreover, increasing Zn content in soil resulted in a significant (p < 0.05) increase in Zn accumulation in various tissues of the four biofuel plants. According to phytoremediation efficiency, the four biofuel plants studied were arranged as follows: A. sativa (5.05%) > A. esculentus (4.15%) > G. max (2.31%) > G. abyssinica (1.17%). This study concluded that all tested biofuel plants species, especially A. sativa exhibited high Zn concentrations in roots and shoots, high Zn uptake capability, high tolerance, and high biomass at 50-800 mg Zn kg-1 treatments. Consequently, these biofuel plants are excellent candidates for phytoremediation in Zn contaminated soils.
Collapse
Affiliation(s)
- Hira Amin
- Institute of Plant Sciences, University of Sindh, Jamshoro, Pakistan
- College Education Department, Government of Sindh, Hyderabad, Pakistan
| | - Basir Ahmed Arain
- Institute of Plant Sciences, University of Sindh, Jamshoro, Pakistan
| | - Taj Muhammad Jahangir
- Institute of Advanced Research Studies in Chemical Sciences, University of Sindh, Jamshoro, Pakistan
| | - Abdul Rasool Abbasi
- Department of Fresh Water Biology and Fisheries, University of Sindh, Jamshoro, Pakistan
| | | | - Farah Amin
- College Education Department, Government of Sindh, Hyderabad, Pakistan
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| |
Collapse
|
14
|
Chen H, Zhang Q, Lv W, Yu X, Zhang Z. Ethylene positively regulates Cd tolerance via reactive oxygen species scavenging and apoplastic transport barrier formation in rice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 302:119063. [PMID: 35248615 DOI: 10.1016/j.envpol.2022.119063] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/17/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Ethylene regulates plant root growth and resistance to environment stress. However, the role and mechanism of ethylene signaling in response to Cd stress in rice remains unclear. Here, we revealed that ethylene signaling plays a positive role in the resistance of rice to Cd toxicity. Blocking the ethylene signal facilitated root elongation under normal conditions, but resulted in severe oxidative damage and inhibition of root growth under Cd stress. Conversely, ethylene signal enhancement by EIN2 overexpression caused root bending, similar to the response of roots to Cd stress, and displayed higher Cd tolerance than the wildtype (WT) plants. Comparative transcriptome analysis indicated EIN2-mediated upregulation of genes involved in flavonoid biosynthesis and peroxidase activity under Cd stress. The synthesis of phenolic acids and flavonoids were positively regulated by ethylene. Thus, the ein2 (ethylene insensitive 2) mutants displayed lower ROS scavenging capacity than the WT. Moreover, a significant increase in Cd accumulation and relatively increased apoplastic flow were observed in the root apex of the ein2 mutant compared with the WT plants. Overall, EIN2-mediated Cd resistance in rice is mediated by the upregulation of flavonoid biosynthesis and peroxidase activity to induce ROS scavenging, and apoplastic transport barrier formation reduces Cd uptake.
Collapse
Affiliation(s)
- Haifei Chen
- College of Resources and Environmental Sciences, Hunan Agricultural University, 410128, Changsha, China
| | - Quan Zhang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410128, Changsha, China
| | - Wei Lv
- College of Resources and Environmental Sciences, Hunan Agricultural University, 410128, Changsha, China
| | - Xiaoyi Yu
- College of Resources and Environmental Sciences, Hunan Agricultural University, 410128, Changsha, China
| | - Zhenhua Zhang
- College of Resources and Environmental Sciences, Hunan Agricultural University, 410128, Changsha, China.
| |
Collapse
|
15
|
Tripathi S, Yadav S, Sharma P, Purchase D, Syed A, Chandra R. Plant growth promoting strain Bacillus cereus (RCS-4 MZ520573.1) enhances phytoremediation potential of Cynodon dactylon L. in distillery sludge. ENVIRONMENTAL RESEARCH 2022; 208:112709. [PMID: 35032541 DOI: 10.1016/j.envres.2022.112709] [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: 09/25/2021] [Revised: 12/27/2021] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
Elevated levels of physico-chemical pollution including organic pollutants, metals and metalloids were detected in distillery sludges despite of the anaerobic digestion treatment prior to disposal. The concentrations of the metals were (in mg kg-1): Fe (400.98 ± 3.11), Zn (17.21 ± 0.54), Mn (8.32 ± 0.42), Ni (8.00 ± 0.98), Pb (5.09 ± 0.43), Cr (4.00 ± 0.98), and Cu (3.00 ± 0.10). An invasive grass species, Cynodon dactylon L., demonstrated its ability to remediate the distillery waste sludge (DWS) in the field study. All the physico-chemical parameters of the sludge significantly improved (up to 70-75%) in the presence of Cynodon dactylon L. (p < 0.001) than the control with no plant growth. The highest phytoremediation capacity was associated with the uptake of Fe in the root and shoot. Sludge samples collected near the rhizosphere also showed lower amount of organic compounds compared to control sludge samples. Metal resistant Bacillus cereus (RCS-4 MZ520573.1) was isolated from the rhizosphere of Cynodon dactylon L. and showed potential to enhance the process of phytoremediation via plant growth promoting activities such as production of high level of ligninolytic enzymes: manganese peroxidase (35.98 U), lignin peroxidase (23.98 U) and laccase (12.78 U), indole acetic acid (45.87(mgL-1), phosphatase activity (25.76 mg L-1) and siderophore production (23.09 mg L-1). This study presents information on the performance of Cynodon dactylon L., an abundant invasive perennial grass species and its associated plant growth promoting rhizobacteria demonstrated good capacity to remediate and restore contaminated soil contained complex organic and inorganic pollutants, they could be integrated into the disposal system of distillery sludge to improve the treatment efficiency.
Collapse
Affiliation(s)
- Sonam Tripathi
- Department of Environmental Microbiology, School for Environmental Sciences, Babasaheb Bhimrao Ambedkar Central University, Vidya Vihar, Raebareli Road, Lucknow, Uttar Pradesh, 226025, India
| | - Sangeeta Yadav
- Department of Environmental Microbiology, School for Environmental Sciences, Babasaheb Bhimrao Ambedkar Central University, Vidya Vihar, Raebareli Road, Lucknow, Uttar Pradesh, 226025, India
| | - Pooja Sharma
- Department of Environmental Microbiology, School for Environmental Sciences, Babasaheb Bhimrao Ambedkar Central University, Vidya Vihar, Raebareli Road, Lucknow, Uttar Pradesh, 226025, India
| | - Diane Purchase
- Department of Natural Sciences, Faculty of Science and Technology, Middlesex University, The Burroughs, London, NW4 4BT, UK
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Ram Chandra
- Department of Environmental Microbiology, School for Environmental Sciences, Babasaheb Bhimrao Ambedkar Central University, Vidya Vihar, Raebareli Road, Lucknow, Uttar Pradesh, 226025, India.
| |
Collapse
|
16
|
Sharma P, Chaturvedi P, Chandra R, Kumar S. Identification of heavy metals tolerant Brevundimonas sp. from rhizospheric zone of Saccharum munja L. and their efficacy in in-situ phytoremediation. CHEMOSPHERE 2022; 295:133823. [PMID: 35114263 DOI: 10.1016/j.chemosphere.2022.133823] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/19/2022] [Accepted: 01/29/2022] [Indexed: 06/14/2023]
Abstract
Heavy metals phytoremediation from pulp and paper industry (PPI) sludge was conducted by employing root-associated Brevundimonas sp (PS-4 MN238722.1) in rhizospheric zone of Saccharum munja L. for its detoxification. The study was aimed to investigate the efficiency of Saccharum munja L. for the removal of heavy metals along with physico-chemical parameters through bacterial interactions. Physico-chemical examination of PPI sludge showed biochemical oxygen demand (8357 ± 94 mg kg-1), electrical conductivity (2264 ± 49 μmhoscm-1), total phenol (521 ± 24 mg kg-1), total dissolve solid (1547 ± 23 mg kg-1), total nitrogen (264 ± 2.13 mg kg-1), pH (8.2 ± 0.11), chemical oxygen demand (34756 ± 214 mg kg-1), color (2434 ± 45 Co-Pt), total suspended solid (76 ± 0.67 mg kg-1), sulphate (2462 ± 13 mg kg-1), chlorolignin (597 ± 13.01 mg kg-1), K+ (21.04 ± 0.26 mg kg-1), total solid (1740 ± 54 mg kg-1), phosphorous, Cl-, and Na+. Heavy metals, such as Fe followed by Zn, Mn, Cd, Cu, Ni, Pb, As, Cr and Hg were above the permissible limit. Root and shoot of Saccharum munja L. revealed highest concentrations of Cd followed by Mn, Ni, Fe, Zn, Cu, As, Cr, Hg, and Pb. Tested metals (Fe, Mn, Pb, Cd, Cr, Cu, Zn, Ni, As, and Hg) bioaccumulation and translocation factors were also revealed to be < 1 and >1, respectively, demonstrating that these plants have considerable absorption and translocation abilities. Plant growth-promoting activity, such as ligninolytic enzymes, hydrolytic enzymes, indole acetic acid, and siderophore production activity of Brevundimonas sp. (PS-4 MN238722.1) were also noted to be higher. These findings support the use of Brevundimonas sp (PS-4 MN238722.1) in combination with Saccharum munja L. plant as interdisciplinary management of industrial sludge at polluted areas for the prevention of soils near the industrial site.
Collapse
Affiliation(s)
- Pooja Sharma
- Department of Environmental Microbiology, School for Environmental Sciences, Babasaheb Bhimrao Ambedkar (A Central) University, Vidya Vihar, Raebareli Road, Lucknow, Uttar Pradesh, 226 025, India; CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur, 440 020, Maharashtra, India.
| | - Preeti Chaturvedi
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, M.G. Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Ram Chandra
- Department of Environmental Microbiology, School for Environmental Sciences, Babasaheb Bhimrao Ambedkar (A Central) University, Vidya Vihar, Raebareli Road, Lucknow, Uttar Pradesh, 226 025, India.
| | - Sunil Kumar
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur, 440 020, Maharashtra, India.
| |
Collapse
|
17
|
Akay A. Lead tolerance and accumulation characteristics of Cubana Kordes rose in lead-contaminated soil. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:307. [PMID: 35353252 DOI: 10.1007/s10661-022-09944-3] [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: 11/19/2021] [Accepted: 03/12/2022] [Indexed: 06/14/2023]
Abstract
This study was conducted to determine lead tolerance and accumulation characteristics of Cubana Kordes rose, which is used in landscaping studies in areas with heavy traffic. In the study, 0%, 3%, and 6% leonardite was added to the sand growing medium, and Pb was applied at different doses (0, 200, 400, 800, and 1600 mg Pb kg-1). At the end of the experiment, the effect of Pb application on plant physiological properties was not statistically significant. The Pb concentration of flower and stem was between 4.50 and 8.92 mg kg-1 and 8.47 and 543.25 mg kg-1, respectively. The Pb concentration in the stem increased with an increase in the dose of Pb. The Pb concentration in the root was between 4.00 and 50.35 mg kg-1 and increased with an increase in the dose of Pb (p < 0.05). The available Pb concentration in the soil varied between 0.05 and 448.79 mg kg-1. The transfer factor value varied between 1.84 and 18.73 and the bioaccumulation factor value ranged between 0.00 and 10.46. The amount of Pb removed from the soil by the stem was between 124.7 and 8346.6 µg kg-1. From the results, we determined that Pb accumulated at a higher rate in the stem than in the root and the flower of Cubana Kordes roses. We found that these roses could tolerate the accumulation of Pb, and hence, they have a great potential to be used in the remediation of soil contaminated by Pb.
Collapse
Affiliation(s)
- Ayşen Akay
- Faculty of Agriculture, Department of Soil Science and Plant Nutrition, Selcuk University, Konya, Turkey.
| |
Collapse
|
18
|
Antioxidant Enzyme Activities as Biomarkers of Cu and Pb Stress in Centella asiatica. STRESSES 2021. [DOI: 10.3390/stresses1040018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The present study investigated the antioxidant enzyme activities (AEA) of ascorbate peroxidase (APX), catalase (CAT), guaiacol peroxidase (GPX), and superoxide dismutase (SOD) as biomarkers of Cu and Pb stress by using Centella asiatica grown in an experimental hydroponic condition. The results showed (i) higher accumulations of Cu and Pb in the roots of C. asiatica than those in the leaves, (ii) synergistic effects of Cu and Pb stress at higher metal-level exposures, and (iii) Cu and Pb stress triggered the increment of APX, CAT, GPX, and SOD levels in both the leaves and roots of C. asiatica. The increment of four AEA indicated that C. asiatica underwent oxidative stress caused by the production of reactive oxygen species when the plant was exposed to Cu and Pb. In order to prevent damages caused by Cu and Pb stress, the AEA system was heightened in C. asiatica, in which APX, CAT, GPX, and SOD can be used as biomarkers of Pb and Cu stress in the plant.
Collapse
|
19
|
Yang GL, Zheng MM, Tan AJ, Liu YT, Feng D, Lv SM. Research on the Mechanisms of Plant Enrichment and Detoxification of Cadmium. BIOLOGY 2021; 10:biology10060544. [PMID: 34204395 PMCID: PMC8234526 DOI: 10.3390/biology10060544] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 11/16/2022]
Abstract
The heavy metal cadmium (Cd), as one of the major environmentally toxic pollutants, has serious impacts on the growth, development, and physiological functions of plants and animals, leading to deterioration of environmental quality and threats to human health. Research on how plants absorb and transport Cd, as well as its enrichment and detoxification mechanisms, is of great significance to the development of phytoremediation technologies for ecological and environmental management. This article summarises the research progress on the enrichment of heavy metal cadmium in plants in recent years, including the uptake, transport, and accumulation of Cd in plants. The role of plant roots, compartmentalisation, chelation, antioxidation, stress, and osmotic adjustment in the process of plant Cd enrichment are discussed. Finally, problems are proposed to provide a more comprehensive theoretical basis for the further application of phytoremediation technology in the field of heavy metal pollution.
Collapse
Affiliation(s)
- Gui-Li Yang
- College of Life Sciences, Guizhou University, Guiyang 550025, China; (G.-L.Y.); (M.-M.Z.); (A.-J.T.); (Y.-T.L.); (D.F.)
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Meng-Meng Zheng
- College of Life Sciences, Guizhou University, Guiyang 550025, China; (G.-L.Y.); (M.-M.Z.); (A.-J.T.); (Y.-T.L.); (D.F.)
| | - Ai-Juan Tan
- College of Life Sciences, Guizhou University, Guiyang 550025, China; (G.-L.Y.); (M.-M.Z.); (A.-J.T.); (Y.-T.L.); (D.F.)
| | - Yu-Ting Liu
- College of Life Sciences, Guizhou University, Guiyang 550025, China; (G.-L.Y.); (M.-M.Z.); (A.-J.T.); (Y.-T.L.); (D.F.)
| | - Dan Feng
- College of Life Sciences, Guizhou University, Guiyang 550025, China; (G.-L.Y.); (M.-M.Z.); (A.-J.T.); (Y.-T.L.); (D.F.)
| | - Shi-Ming Lv
- College of Animal Science, Guizhou University, Guiyang 550025, China
- Correspondence: ; Tel.: +86-1376-513-6919
| |
Collapse
|
20
|
Luo JS, Zhang Z. Mechanisms of cadmium phytoremediation and detoxification in plants. ACTA ACUST UNITED AC 2021. [DOI: 10.1016/j.cj.2021.02.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
21
|
DalCorso G, Martini F, Fasani E, Manara A, Visioli G, Furini A. Enhancement of Zn tolerance and accumulation in plants mediated by the expression of Saccharomyces cerevisiae vacuolar transporter ZRC1. PLANTA 2021; 253:117. [PMID: 33956221 PMCID: PMC8102461 DOI: 10.1007/s00425-021-03634-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/24/2021] [Indexed: 05/30/2023]
Abstract
Transgenic Arabidopsis thaliana and Populus alba plants overexpressing the zinc transporter ScZRC1 in shoots exhibit Zn tolerance. Increased Zn concentrations were observed in shoots of P. alba, a species suitable for phytoremediation. Genetic engineering of plants for phytoremediation is worth to consider if genes leading to heavy metal accumulation and tolerance are expressed in high biomass producing plants. The Saccharomyces cerevisiae ZRC1 gene encodes a zinc transporter which is primarily involved in the uptake of Zn into the vacuole. The ZRC1 gene was expressed in the model species A. thaliana and P. alba (cv. Villafranca). Both species were transformed with constructs carrying ScZRC1 under the control of either the CaMV35S promoter for constitutive expression or the active promoter region of the tobacco Rubisco small subunit (pRbcS) to limit the expression to the above-ground tissues. In hydroponic cultures, A. thaliana and poplar ScZRC1-expressing plants accumulated more Zn in vegetative tissues and were more tolerant than untransformed plants. No differences were found between plants carrying the CaMV35::ScZRC1 or pRbcS::ScZRC1 constructs. The higher Zn accumulation in transgenic plants was accompanied by an increased superoxide dismutase (SOD) activity, indicating the activation of defense mechanisms to prevent cellular damage. In the presence of cadmium in addition to Zn, plants did not show symptoms of metal toxicity, neither in hydroponic cultures nor in soil. Zn accumulation increased in shoots, while no differences were observed for Cd accumulation, in comparison to control plants. These data suggest that ectopic expression of ScZRC1 can increase the potential of poplar for the remediation of Zn-polluted soils, although further tests are required to assay its application in remediating multimetal polluted soils.
Collapse
Affiliation(s)
- Giovanni DalCorso
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Flavio Martini
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Elisa Fasani
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Anna Manara
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Giovanna Visioli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Antonella Furini
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy.
| |
Collapse
|
22
|
Yap CK, Chew W, Al-Mutairi KA, Al-Shami SA, Nulit R, Ibrahim MH, Wong KW, Bakhtiari AR, Sharifinia M, Cheng WH, Okamura H, Ismail MS, Saleem M. Invasive Weed Asystasia gangetica as a Potential Biomonitor and a Phytoremediator of Potentially Toxic Metals: A Case Study in Peninsular Malaysia. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18094682. [PMID: 33924835 PMCID: PMC8124176 DOI: 10.3390/ijerph18094682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/26/2021] [Accepted: 03/26/2021] [Indexed: 12/14/2022]
Abstract
The invasive weed Asystasia gangetica was investigated for its potential as a biomonitor and as a phytoremediator of potentially toxic metals (PTMs) (Cd, Cu, Ni, Pb, and Zn) in Peninsular Malaysia owing to its ecological resistance towards unfavourable environments. The biomonitoring potential of PTMs was determined based on the correlation analysis of the metals in the different parts of the plant (leaves, stems, and roots) and its habitat topsoils. In the roots, the concentrations (mg/kg dry weight) of Cd, Cu, Ni, Pb, and Zn ranged from 0.03 to 2.18, 9.22 to 139, 0.63 to 5.47, 2.43 to 10.5, and 50.7 to 300, respectively. In the leaves, the concentrations (mg/kg dry weight) of Cd, Cu, Ni, Pb, and Zn ranged from 0.03 to 1.16, 7.94 to 20.2, 0.03 to 6.13, 2.10 to 21.8, and 18.8 to 160, respectively. In the stems, the concentrations (mg/kg dry weight) of Cd, Cu, Ni, Pb, and Zn ranged from 0.03 to 1.25, 5.57 to 11.8, 0.23 to 3.69, 0.01 to 7.79, and 26.4 to 246, respectively. On the other hand, the phytoremediation potential of the five metals was estimated based on the bioconcentration factor (BCF) and the translocation factor (TF) values. Correlation analysis revealed that the roots and stems could be used as biomonitors of Cu, the stems as biomonitors of Ni, the roots and leaves as biomonitors of Pb, and all three parts of the plant as biomonitors of Zn. According to the BCF values, in the topsoil, the “easily, freely, leachable, or exchangeable” geochemical fractions of the five metals could be more easily transferred to the roots, leaves, and stems when compared with total concentrations. Based on the TF values of Cd, Ni, and Pb, the metal transfer to the stems (or leaves) from the roots was efficient (>1.0) at most sampling sites. The results of BCF and TF showed that A. gangetica was a good phytoextractor for Cd and Ni, and a good phytostabilizer for Cu, Pb, and Zn. Therefore, A. gangetica is a good candidate as a biomonitor and a phytoremediator of Ni, Pb, and Zn for sustainable contaminant remediation subject to suitable field management strategies.
Collapse
Affiliation(s)
- Chee Kong Yap
- Department of Biology, Faculty of Science, Universiti Putra Malaysia, UPM, Serdang 43400, Malaysia; (W.C.); (R.N.); (M.H.I.); (K.W.W.)
- Correspondence:
| | - Weiyun Chew
- Department of Biology, Faculty of Science, Universiti Putra Malaysia, UPM, Serdang 43400, Malaysia; (W.C.); (R.N.); (M.H.I.); (K.W.W.)
| | | | - Salman Abdo Al-Shami
- Indian River Research and Education Center, IFAS, University of Florida, Fort Pierce, FL 34945, USA;
| | - Rosimah Nulit
- Department of Biology, Faculty of Science, Universiti Putra Malaysia, UPM, Serdang 43400, Malaysia; (W.C.); (R.N.); (M.H.I.); (K.W.W.)
| | - Mohd Hafiz Ibrahim
- Department of Biology, Faculty of Science, Universiti Putra Malaysia, UPM, Serdang 43400, Malaysia; (W.C.); (R.N.); (M.H.I.); (K.W.W.)
| | - Koe Wei Wong
- Department of Biology, Faculty of Science, Universiti Putra Malaysia, UPM, Serdang 43400, Malaysia; (W.C.); (R.N.); (M.H.I.); (K.W.W.)
| | - Alireza Riyahi Bakhtiari
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor 46417-76489, Iran;
| | - Moslem Sharifinia
- Shrimp Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Bushehr 75169-89177, Iran;
| | - Wan Hee Cheng
- Faculty of Health and Life Sciences, Inti International University, Persiaran Perdana BBN, Nilai 71800, Malaysia;
| | - Hideo Okamura
- Graduate School of Maritime Sciences, Faculty of Maritime Sciences, Kobe University, Kobe 658-0022, Japan;
| | | | - Muhammad Saleem
- Department of Chemistry, Government Post Graduate College Mirpur, Affiliated Mirpur University of Science and Technology, Mirpur 10250, Pakistan;
| |
Collapse
|
23
|
Chandrasekaran M, Boopathi T, Manivannan P. Comprehensive Assessment of Ameliorative Effects of AMF in Alleviating Abiotic Stress in Tomato Plants. J Fungi (Basel) 2021; 7:303. [PMID: 33921098 PMCID: PMC8071382 DOI: 10.3390/jof7040303] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/09/2021] [Accepted: 04/14/2021] [Indexed: 11/17/2022] Open
Abstract
Population growth and food necessity envisaged the dire need for supplementation to a larger community balance in food production. With the advent of the green revolution, agriculture witnessed the insurrection of horticultural fruit crops and field crops in enormous modes. Nevertheless, chemical fertilizer usage foresees soil pollution and fertility loss. Utilization of biocontrol agents and plant growth promotion by microbial colonization enrooted significant restoration benefits. Constant reliability for healthy foods has been emancipated across the globe stressing high nutritive contents among indigenous field crops like tomato (Solanum lycopersicum). However, stress tolerance mechanisms and efficient abatement require deeper insights. The applicability of arbuscular mycorrhizal fungi (AMF) poses as an ultimate strategy to minimize the deleterious consequences of abiotic stress such as salt, drought, temperature and heavy metal stress sustainably. The rational modality employing the application of AMF is one of significant efforts to lessen cell damages under abiotic stress. The novelty of the compilation can be redressed to cohesive literature for combating stress. The literature review will provide agricultural scientists worldwide in providing a rational approach that can have possible implications in not only tomato but also other vegetable crops.
Collapse
Affiliation(s)
| | - T. Boopathi
- Department of Biology, Gandhigram Rural Institute, Tamilnadu 624302, India;
| | | |
Collapse
|
24
|
Kamireddy K, Sonbarse PP, Mishra SK, Agrawal L, Chauhan PS, Lata C, Parvatam G. Proteomic approach to identify the differentially abundant proteins during flavour development in tuberous roots of Decalepis hamiltonii Wight & Arn. 3 Biotech 2021; 11:173. [PMID: 33927964 DOI: 10.1007/s13205-021-02714-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 03/03/2021] [Indexed: 01/14/2023] Open
Abstract
2-Hydroxy-4-Methoxy Benzaldehyde (2H4MB) is a structural isomer of vanillin produced in the tuberous roots of D. hamiltonii. Both vanillin and 2H4MB share the common phenylpropanoid pathway for their synthesis. Unlike vanillin, in which the biosynthetic pathway was well elucidated in V. planifolia, the 2H4MB biosynthetic pathway is not known in any of its plant sources. To find the key enzymes/proteins that promote 2H4MB biosynthesis, a comparative proteomic approach was adapted. In this case, two developmental stages of tuberous roots of D. hamiltonii were selected, where the flavour content was highly variable. The flavour content in the two stages was estimated using quantitative HPLC. The flavour content in the first and second stages of tuber development was 160 and 510 µgg-1, respectively. Two-dimensional electrophoresis (2-DE) was performed for these two stages of tubers; this was followed by PDquest analysis. A total of 180 protein spots were differentially abundant of which 57 spots were selected and subjected to MALDI-TOF-TOF analysis. The largest percentage of identified proteins was involved in stress and defence (27.9%), followed by proteins related to bioenergy and metabolism (23.2%), Cellular homeostasis proteins (18.6%), signaling proteins (11.6%), Plant growth and development proteins (9.3%). Holistically, we found the upregulation of methyltransferase, cell division responsive proteins, plant growth and development proteins which directly relate to flavour development and maturation. Similarly, stress-responsive and signaling proteins, vacuole proteins and ATPases were down-regulated with an increase in flavour content. In this study, we could not identify the specific 2H4MB metabolic pathway proteins, however, we could be able to study the changes in physiological and primary metabolic proteins with 2H4MB accumulation. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02714-x.
Collapse
Affiliation(s)
- Kiran Kamireddy
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh India
- Plant Cell Biotechnology Department, CSIR - Central Food Technological Research Institute, Mysore, Karnataka India
| | - Priyanka Purushottam Sonbarse
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh India
- Plant Cell Biotechnology Department, CSIR - Central Food Technological Research Institute, Mysore, Karnataka India
| | - Shashank K Mishra
- CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh India
| | - Lalit Agrawal
- CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh India
| | - Puneet S Chauhan
- CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh India
| | - Charu Lata
- CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh India
| | - Giridhar Parvatam
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh India
- Plant Cell Biotechnology Department, CSIR - Central Food Technological Research Institute, Mysore, Karnataka India
| |
Collapse
|
25
|
Zhang Q, Kong W, Wei L, Hou X, Ma Q, Liu Y, Luo Y, Liao C, Liu J, Schnoor JL, Jiang G. Compartmentalization and Excretion of 2,4,6-Tribromophenol Sulfation and Glycosylation Conjugates in Rice Plants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:2980-2990. [PMID: 33544574 PMCID: PMC8232829 DOI: 10.1021/acs.est.0c07184] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The most environmentally abundant bromophenol congener, 2,4,6-tribromophenol (2,4,6-TBP, 6.06 μmol/L), was exposed to rice for 5 d both in vivo (intact seedling) and in vitro (suspension cell) to systematically characterize the fate of its sulfation and glycosylation conjugates in rice. The 2,4,6-TBP was rapidly transformed to produce 6 [rice cells (3 h)] and 8 [rice seedlings (24 h)] sulfated and glycosylated conjugates. The predominant sulfation conjugate (TP408, 93.0-96.7%) and glycosylation conjugate (TP490, 77.1-90.2%) were excreted into the hydroponic solution after their formation in rice roots. However, the sulfation and glycosylation conjugates presented different translocation and compartmentalization behaviors during the subsequent Phase III metabolism. Specifically, the sulfated conjugate could be vertically transported into the leaf sheath and leaf, while the glycosylation conjugates were sequestered in cell vacuoles and walls, which resulted in exclusive compartmentalization within the rice roots. These results showed the micromechanisms of the different compartmentalization behaviors of 2,4,6-TBP conjugates in Phase III metabolism. Glycosylation and sulfation of the phenolic hydroxyl groups orchestrated by plant excretion and Phase III metabolism may reduce the accumulation of 2,4,6-TBP and its conjugates in rice plants.
Collapse
Affiliation(s)
- Qing Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. China
- School of Environment, Beijing Normal University, Beijing 100875, P. R. China
| | - Wenqian Kong
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. China
| | - Linfeng Wei
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. China
| | - Xingwang Hou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. China
| | - Qianchi Ma
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. China
| | - Yanna Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. China
| | - Yadan Luo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. China
| | - Chunyang Liao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. China
| | - Jiyan Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. China
| | - Jerald L Schnoor
- Department of Civil and Environmental Engineering, University of Iowa, Iowa City, Iowa 52242, United States
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. China
| |
Collapse
|
26
|
Phytoremediation: a sustainable environmental technology for heavy metals decontamination. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-021-04301-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
AbstractToxic metal contamination of soil is a major environmental hazard. Chemical methods for heavy metal's (HMs) decontamination such as heat treatment, electroremediation, soil replacement, precipitation and chemical leaching are generally very costly and not be applicable to agricultural lands. However, many strategies are being used to restore polluted environments. Among these, phytoremediation is a promising method based on the use of hyper-accumulator plant species that can tolerate high amounts of toxic HMs present in the environment/soil. Such a strategy uses green plants to remove, degrade, or detoxify toxic metals. Five types of phytoremediation technologies have often been employed for soil decontamination: phytostabilization, phytodegradation, rhizofiltration, phytoextraction and phytovolatilization. Traditional phytoremediation method presents some limitations regarding their applications at large scale, so the application of genetic engineering approaches such as transgenic transformation, nanoparticles addition and phytoremediation assisted with phytohormones, plant growth-promoting bacteria and AMF inoculation has been applied to ameliorate the efficacy of plants as candidates for HMs decontamination. In this review, aspects of HMs toxicity and their depollution procedures with focus on phytoremediation are discussed. Last, some recent innovative technologies for improving phytoremediation are highlighted.
Collapse
|
27
|
Liu Q, Zhang Y, Wang Y, Wang W, Gu C, Huang S, Yuan H, Dhankher OP. Quantitative proteomic analysis reveals complex regulatory and metabolic response of Iris lactea Pall. var. chinensis to cadmium toxicity. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123165. [PMID: 32569986 DOI: 10.1016/j.jhazmat.2020.123165] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/13/2020] [Accepted: 06/06/2020] [Indexed: 05/28/2023]
Abstract
Cadmium pollution has become a serious environmental problem. Iris lactea var. chinensis showed strong Cd tolerance and accumulation ability, which has significant potential to be applied for the phytoremediation of Cd-contaminated soil. However, the lack of molecular information on the mechanism of I. lactea response to Cd limited the improvement of phytoremediation efficiency. In this study, label-free proteomics analysis of Cd response in I. lactea showed that there were 163 and 196 differentially expressed proteins (DEPs) in the shoots and roots, respectively. Bioinformatics analysis indicated the DEPs responding to Cd stress mainly involved in signal transduction, ion transport, redox etc., and participate in the pathway of amino acid biosynthesis, lignin biosynthesis, glycerolipid metabolism and glutathione metabolism. Besides, differential expression of seven DEPs was validated via gene expression analysis. Finally, we found that a Cd-induced mannose-specific lectin (IlMSL) from I. lactea enhanced the Cd sensitivity and increased Cd accumulation in yeast. The results of this study will enhance our understanding of the molecular mechanism of Cd tolerance and accumulation in I. lactea and ultimately provide valuable resources for using Cd tolerant genes for developing efficient strategies for phytoremediation of Cd-contaminated soils or limiting Cd accumulation in food crops.
Collapse
Affiliation(s)
- Qingquan Liu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
| | - Yongxia Zhang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
| | - Yinjie Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
| | - Weilin Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
| | - Chunsun Gu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
| | - Suzhen Huang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
| | - Haiyan Yuan
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China.
| | - Om Parkash Dhankher
- Stockbridge School of Agriculture, University of Massachusetts Amherst, Amherst, MA 01003, USA.
| |
Collapse
|
28
|
Shang C, Wang L, Tian C, Song J. Heavy metal tolerance and potential for remediation of heavy metal-contaminated saline soils for the euhalophyte Suaeda salsa. PLANT SIGNALING & BEHAVIOR 2020; 15:1805902. [PMID: 32815486 PMCID: PMC7588191 DOI: 10.1080/15592324.2020.1805902] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
Due to irrigation practices and industrial pollution, large areas of the lands in the world are simultaneously affected by salinity and heavy metal contamination. It has been considered that halophytes have adapted to salinity, and can be used to remediate heavy metal-contaminated saline soils. Suaeda salsa L. (S. salsa) is a high salt-resistance plant, which can efficiently absorb and accumulate salt and toxic metals from saline soils, suggesting that this may be potential plant species that can be used for the restoration of saline soils contaminated with heavy metals. The present brief review sheds light on the characteristics of S. salsa in the uptake and accumulation of high levels of heavy metals. Furthermore, the physiological and molecular mechanisms for heavy metal tolerance were highlighted. The potential values of S. salsa in the remediation of saline soils were also summarized.
Collapse
Affiliation(s)
- Cailing Shang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, P.R. China
| | - Lei Wang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, P.R. China
| | - Changyan Tian
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, P.R. China
| | - Jie Song
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, P.R. China
| |
Collapse
|
29
|
Purwanti IF, Obenu A, Tangahu BV, Kurniawan SB, Imron MF, Abdullah SRS. Bioaugmentation of Vibrio alginolyticus in phytoremediation of aluminium-contaminated soil using Scirpus grossus and Thypa angustifolia. Heliyon 2020; 6:e05004. [PMID: 33005804 PMCID: PMC7511751 DOI: 10.1016/j.heliyon.2020.e05004] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/01/2020] [Accepted: 09/17/2020] [Indexed: 11/28/2022] Open
Abstract
This research analyses the performance of bacteria-assisted phytoremediation of aluminium (Al)-contaminated soil using native Indonesian plants namely, Scirpus grossus and Thypa angustifolia. A range finding test (RFT) was carried out for 14 days to obtain the tolerable Al concentration for both plants. A total of 2% and 5% (v/v) of Vibrio alginolyticus were bioaugmented during the 28-day phytoremediation test to enhance the overall Al removal. Result of the RFT showed that both plants can tolerate up to 500 mg/kg Al concentration. The addition of V. alginolyticus to the reactors resulted in a significant increment of Al removal from the contaminated soil (p < 0.05). Such addition of V. alginolyticus increased the Al removal by up to 14.0% compared with that without-bacteria addition. The highest Al removal was obtained for S. grossus with 5% V. alginolyticus with an efficiency of 35.1% from 500 mg/kg initial concertation. T. angustifolia with 500 mg/kg initial concentration showed the highest removal of 26.2% by the addition of 5% V. alginolyticus. The increase of Al removal by the bioaugmentation of V. alginolyticus was due to the interaction in the plant's rhizosphere. Exudates of both plants provided a good environment for bacteria to live in the root area. Meanwhile, the bacteria increased the bioavailability of Al to be further extracted by plants. Certain mechanisms, such as rhizostabilisation, phytostimulation and phytoextraction, were considered to be the main processes that occurred during the treatment. S. grossus and T. angustifolia displayed promising ability to act as Al hyperaccumulators with bioaccumulation factor values up to 5.308 and 3.068, respectively. Development of the design of the ex-situ soil phytoremediation reactors is suggested as a future research direction because it can significantly enhance the current obtained finding.
Collapse
Affiliation(s)
- Ipung Fitri Purwanti
- Department of Environmental Engineering, Faculty of Civil, Planning, and Geo Engineering, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia
| | - Adriana Obenu
- Department of Environmental Engineering, Faculty of Civil, Planning, and Geo Engineering, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia
| | - Bieby Voijant Tangahu
- Department of Environmental Engineering, Faculty of Civil, Planning, and Geo Engineering, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia
| | - Setyo Budi Kurniawan
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
| | - Muhammad Fauzul Imron
- Study Program of Environmental Engineering, Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Kampus C UNAIR, Jalan Mulyorejo, Surabaya 60115, Indonesia
| | - Siti Rozaimah Sheikh Abdullah
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
| |
Collapse
|
30
|
Copper and mercury induced oxidative stresses and antioxidant responses of Spirodela polyrhiza (L.) Schleid. Biochem Biophys Rep 2020; 23:100781. [PMID: 32715102 PMCID: PMC7369327 DOI: 10.1016/j.bbrep.2020.100781] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/24/2020] [Accepted: 07/09/2020] [Indexed: 01/24/2023] Open
Abstract
Duckweed is recognized as a phytoremediation aquatic plant due to the production of large biomass and a high level of tolerance in stressed conditions. A laboratory experiment was conducted to investigate antioxidant response and mechanism of copper and mercury tolerance of S. polyrhiza (L.) Schleid. To understand the changes in chlorophyll content, MDA, proline, and activities of ROS-scavenging enzymes (SOD, CAT, GPOD) during the accumulation of Cu+2 and Hg+2, S. polyrhiza were exposed to various concentrations of Cu+2 (0.0–40 μM) and Hg+2 (0.0–0.4 μM). antioxidant activity initially indicated enhancing trend with application of 10 μM Cu+2; 0.2 μM Hg+2 (SOD), of 20 μM Cu+2; 0.2 μM Hg+2 (CAT) and of 10 μM Cu+2;0.2 μM Hg+2 (GPOD) and then decreased consistently up to 40 μM Cu+2 and 0.4 μM Hg+2. In the experiment chlorophyll and frond multiplication initially showed increasing tendency and decreased gradually with the application of increased metal concentration. Application of heavy metal has constantly enhanced proline and MDA content while the maximum increase was observed with the application of 40 μM Cu; 0.4 μM Hg for proline and MDA respectively. The upregulation of antioxidant enzymes and proline reveals that S. polyrhiza has strong biochemical strategies to deal with the heavy metal toxicity induced by the accumulation of Cu+2 and Hg+2. Biochemical responses of copper and mercury in Spirodela polyrhizawere investigated. The threshold tolerance level for Cu and Hg was found < 20 μM and < 0.2 μM respectively. The results reveal that S. polyrhiza is biochemically well adapted to cope with HM toxicity induced by Cu and Hg.
Collapse
Key Words
- CAT, catalase
- Chl, chlorophyll
- Chlorophylls
- Duckweed
- GPOD, Guaiacol peroxidase
- HMs, heavy metal
- Heavy metals
- MDA, malondialdehyde
- Malondialdehyde
- NBT, nitro-blue tetrazolium
- PUFA, polyunsaturated fatty acids
- Proline
- RFN, relative frond number
- ROS, reactive oxygen species
- Reactive oxygen species
- SOD, superoxide peroxide
- TBA, thiobarbituric acid
- TCA, trichloroacetic acid
Collapse
|
31
|
Mabrouk L, Mabrouk W, Mansour HB. High leaf fluctuating asymmetry in two native plants growing in heavy metal-contaminated soil: the case of Metlaoui phosphate mining basin (Gafsa, Tunisia). ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:406. [PMID: 32483652 DOI: 10.1007/s10661-020-08385-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
In order to estimate pollution impact in soil and plants by phosphates mining activities, three mining sites and one control site were selected around Metlaoui (phosphates basin of Gafsa, southern Tunisia) in March 2019. Heavy metal concentrations in soil and in two native plants (Moricandia arvensis and Diplotaxis harra: Brassicaceae) were measured using atomic absorption spectrometry. Development instability was estimated using leaf fluctuating asymmetry of the two plant species. The results showed that the soils of the Metlaoui sites contain higher levels of Cd, Ni, Zn, and Cr compared with control site (maximum of 33.225 ± 2.588; 100.86 ± 0.314; 180.267 ± 16.103; and 16.554 ± 0.313 ppm, respectively). These levels are higher than the maximal contents tolerated in soils. Heavy metals also occurred at high concentrations in plant organs in Metlaoui sites especially in leaves. Cadmium and Zn concentrations in these plants exceed the phytotoxic level (with maximum of 20.498 ± 0.627 ppm and maximum of 337.901 ± 16.686 ppm, respectively). Statistical analysis showed that fluctuating asymmetries (FA) of leaves of the two sampled plants are higher in mining sites compared with control. Pearson correlation and PCA analysis showed that FA is related to Cd, Ni, and Zn concentrations in soil. The results indicate that phosphate extraction and laundries in the mining sites caused heavy metal pollution in soil that accumulates in plant organs and caused also development instability. Our study showed that Moricandia arvensis may have the potential for phytoremediation.
Collapse
Affiliation(s)
- Lotfi Mabrouk
- Faculté des Sciences de Gafsa, Cité Sidi Ahmed Zarrouk, Gafsa, Tunisia.
- Unité de Recherche Analyses et Procédés Appliqués à l'Environnement UR17ES32, Institut Supérieur des sciences Appliquées et de Technologie de Mahdia, Rejiche, Tunisia.
| | - Wafa Mabrouk
- Faculté des Sciences de Gafsa, Cité Sidi Ahmed Zarrouk, Gafsa, Tunisia
| | - Hedi Ben Mansour
- Unité de Recherche Analyses et Procédés Appliqués à l'Environnement UR17ES32, Institut Supérieur des sciences Appliquées et de Technologie de Mahdia, Rejiche, Tunisia
| |
Collapse
|
32
|
Yan A, Wang Y, Tan SN, Mohd Yusof ML, Ghosh S, Chen Z. Phytoremediation: A Promising Approach for Revegetation of Heavy Metal-Polluted Land. FRONTIERS IN PLANT SCIENCE 2020; 11:359. [PMID: 32425957 PMCID: PMC7203417 DOI: 10.3389/fpls.2020.00359] [Citation(s) in RCA: 360] [Impact Index Per Article: 90.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 03/12/2020] [Indexed: 05/18/2023]
Abstract
Heavy metal accumulation in soil has been rapidly increased due to various natural processes and anthropogenic (industrial) activities. As heavy metals are non-biodegradable, they persist in the environment, have potential to enter the food chain through crop plants, and eventually may accumulate in the human body through biomagnification. Owing to their toxic nature, heavy metal contamination has posed a serious threat to human health and the ecosystem. Therefore, remediation of land contamination is of paramount importance. Phytoremediation is an eco-friendly approach that could be a successful mitigation measure to revegetate heavy metal-polluted soil in a cost-effective way. To improve the efficiency of phytoremediation, a better understanding of the mechanisms underlying heavy metal accumulation and tolerance in plant is indispensable. In this review, we describe the mechanisms of how heavy metals are taken up, translocated, and detoxified in plants. We focus on the strategies applied to improve the efficiency of phytostabilization and phytoextraction, including the application of genetic engineering, microbe-assisted and chelate-assisted approaches.
Collapse
Affiliation(s)
- An Yan
- Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, Singapore, Singapore
| | - Yamin Wang
- Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, Singapore, Singapore
| | - Swee Ngin Tan
- Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, Singapore, Singapore
| | | | - Subhadip Ghosh
- Centre for Urban Greenery and Ecology, National Parks Board, Singapore, Singapore
- School of Environmental and Rural Science, University of New England, Armidale, NSW, Australia
| | - Zhong Chen
- Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, Singapore, Singapore
- M Grass International Institute of Smart Urban Greenology, Singapore, Singapore
| |
Collapse
|
33
|
Brasili E, Bavasso I, Petruccelli V, Vilardi G, Valletta A, Dal Bosco C, Gentili A, Pasqua G, Di Palma L. Remediation of hexavalent chromium contaminated water through zero-valent iron nanoparticles and effects on tomato plant growth performance. Sci Rep 2020; 10:1920. [PMID: 32024866 PMCID: PMC7002744 DOI: 10.1038/s41598-020-58639-7] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 01/13/2020] [Indexed: 11/23/2022] Open
Abstract
Contaminated water with hexavalent chromium Cr(VI) is a serious environmental problem. This study aimed to evaluate the Cr(VI) removal by zero valent iron nanoparticles (nZVI) reduction process and the impact of Cr(VI), nZVI and combined treatment with nZVI and Cr(VI) on tomato growth performance. To evaluate the Cr(VI) toxic effect on germination capability, seeds were exposed to increasing Cr(VI) concentrations up to 1000 mg L−1. The inhibition of seed germination and the decrease of hypocotyl and root length started from Cr(VI) 5 mg L−1. Under treatment with Cr(VI) + nZVI 5 mg L−1, seed germination, hypocotyl and root length resulted significantly higher compared to Cr(VI) 5 mg L−1 treatment. The impact of only nZVI was investigated on chlorophyll and carotenoid in leaves; iron levels in leaves, roots, fruits and soil; carotenoid, fat-soluble vitamin and nicotianamine in mature fruits. A significant increase of leaf chlorophyll and carotenoids was observed after nZVI 5 mg L−1 treatment compared to controls. No significant variations were observed in carotenoids, fat-soluble vitamins and nicotianamine levels after treatment with nZVI 5 mg L−1 in mature fruits. For their ability to reduce Cr(VI) and to stimulate tomato growth, nZVI might to be considered as alternative for remediation purposes.
Collapse
Affiliation(s)
- Elisa Brasili
- Sapienza University of Rome, Department of Environmental Biology, Rome, 000185, Italy
| | - Irene Bavasso
- Sapienza University of Rome, Department of Chemical Engineering Materials Environment, Rome, 00185, Italy
| | - Valerio Petruccelli
- Sapienza University of Rome, Department of Environmental Biology, Rome, 000185, Italy
| | - Giorgio Vilardi
- Sapienza University of Rome, Department of Chemical Engineering Materials Environment, Rome, 00185, Italy
| | - Alessio Valletta
- Sapienza University of Rome, Department of Environmental Biology, Rome, 000185, Italy
| | - Chiara Dal Bosco
- Sapienza University of Rome, Department of Chemistry, Rome, 00185, Italy
| | - Alessandra Gentili
- Sapienza University of Rome, Department of Chemistry, Rome, 00185, Italy
| | - Gabriella Pasqua
- Sapienza University of Rome, Department of Environmental Biology, Rome, 000185, Italy.
| | - Luca Di Palma
- Sapienza University of Rome, Department of Chemical Engineering Materials Environment, Rome, 00185, Italy
| |
Collapse
|
34
|
Topal M, Arslan Topal EI. Phytoremediaton of priority substances (Pb and Ni) by Phragmites australis exposed to poultry slaughterhouse wastewater. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 22:857-862. [PMID: 31965818 DOI: 10.1080/15226514.2020.1715919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The aim of the work was to evaluate the ability of Phragmites australis to uptake lead and nickel from the stream taking the treated poultry slaughterhouse wastewater (PSW). Pb and Ni concentrations, which are the priority substances of the water frame directive, were detected separately at the root, stem and leaf of P. australis at 50 m and 100 m from the downstream of discharge point. The uptake of Pb and Ni by P. australis followed the order of root > leaf > stem. The Ni uptake was higher than Pb uptake in P. australis exposed to poultry wastewater. As a result, P. australis exposed to PSW were found to have the ability to uptake Pb and Ni. It has been determined that P. australis can be used for removal and phytoremediation of Pb and Ni metals from PSWs.
Collapse
Affiliation(s)
- Murat Topal
- Department of Chemistry and Chemical Processes, Tunceli Vocation School, Munzur University, Tunceli, Turkey
- Rare Earth Elements Application and Research Center, Munzur University, Tunceli, Turkey
| | - E Işıl Arslan Topal
- Faculty of Engineering, Department of Environmental Engineering, University of Firat, Elazığ, Turkey
| |
Collapse
|
35
|
Dong F, Zhu X, Qian W, Wang P, Wang J. Combined effects of CO 2-driven ocean acidification and Cd stress in the marine environment: Enhanced tolerance of Phaeodactylum tricornutum to Cd exposure. MARINE POLLUTION BULLETIN 2020; 150:110594. [PMID: 31727316 DOI: 10.1016/j.marpolbul.2019.110594] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 09/10/2019] [Accepted: 09/11/2019] [Indexed: 06/10/2023]
Abstract
Ocean acidification (OA) and heavy metals are common stress factors for marine ecosystems subject to anthropogenic impacts. OA coupled with the heavy metal is likely to affect marine species. This study investigated the single and combined effects of OA (1500 ppm) and cadmium (Cd; 0.4, 1.2 mg/L) on the marine diatom Phaeodactylum tricornutum under 7 d exposure. The results clearly indicated that either OA or Cd stress (1.2 mg/L) alone inhibited the growth of P. tricornutum. However, under the combined OA-Cd stress, the growth inhibition disappeared, and the intracellular oxidative damage was mitigated. These results indicated a significantly enhanced tolerance of P. tricornutum to Cd while under OA conditions, which could be beneficial to the survival of this diatom. This study will ultimately help us understand the responses of marine organisms to multiple stressors and have broad implications for the potential ecological risks of Cd under future OA conditions.
Collapse
Affiliation(s)
- Fang Dong
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, PR China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, PR China; Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
| | - Xiaoshan Zhu
- Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China.
| | - Wei Qian
- Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
| | - Pu Wang
- Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
| | - Jiangxin Wang
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, PR China.
| |
Collapse
|
36
|
Rasheed F, Zafar Z, Waseem ZA, Rafay M, Abdullah M, Salam MMA, Mohsin M, Khan WR. Phytoaccumulation of Zn, Pb, and Cd in Conocarpus lancifolius irrigated with wastewater: does physiological response influence heavy metal uptake? INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 22:287-294. [PMID: 31468990 DOI: 10.1080/15226514.2019.1658711] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Conocarpus lancifolius is a fast-growing and drought tolerant tree species with phytoremediation potential in arid environments. The present study was conducted to evaluate the phytoaccumulation potential under wastewater treatment. The experiment was performed in a greenhouse where 3-month-old seedlings were irrigated with industrial wastewater and growth, biomass and physiological parameters were measured. Concentrations of zinc (Zn), lead (Pb), and cadmium (Cd) in leaves, shoots, and roots along with translocation and tolerance index were also determined. The results showed that under wastewater treatment total biomass increased from 24.2 to 31.5 g, net CO2 assimilation rate increased from 9.93 to 13.3 μmol m-2 s-1, and water use efficiency increased from 1.7 to 2.42. Similarly, heavy metals (Zn, Pb, and Cd) accumulation in stem, leaves, and roots increased significantly under wastewater treatment where the highest concentration of Zn, Pb and Cd was found in roots followed by leaves and stem, respectively. Tolerance index was found >1, and translocation factor of all heavy metals was found >1. The study revealed that phytoaccumulation potential of C. lancifolius was mainly driven by improved net CO2 assimilation rate and water use efficiency.
Collapse
Affiliation(s)
- Fahad Rasheed
- Department of Forestry and Range Management, University of Agriculture, Faisalabad, Pakistan
| | - Zikria Zafar
- Department of Forestry and Range Management, University of Agriculture, Faisalabad, Pakistan
| | - Zulfiqar Ali Waseem
- Department of Forestry and Range Management, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Rafay
- Department of Forestry, Rage Management and Wildlife, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Abdullah
- Cholistan Institute of Desert Studies (CIDS), The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Mir Md Abdus Salam
- School of Forest Sciences, University of Eastern Finland, Joensuu, Finland
| | - Muhammad Mohsin
- School of Forest Sciences, University of Eastern Finland, Joensuu, Finland
| | - Waseem Razzaq Khan
- Department of Forest Management, Faculty of Forestry, Universiti Putra Malaysia, Selangor, Malaysia
| |
Collapse
|
37
|
Narendrula-Kotha R, Theriault G, Mehes-Smith M, Kalubi K, Nkongolo K. Metal Toxicity and Resistance in Plants and Microorganisms in Terrestrial Ecosystems. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 249:1-27. [PMID: 30725190 DOI: 10.1007/398_2018_22] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Metals are major abiotic stressors of many organisms, but their toxicity in plants is not as studied as in microorganisms and animals. Likewise, research in plant responses to metal contamination is sketchy. Candidate genes associated with metal resistance in plants have been recently discovered and characterized. Some mechanisms of plant adaptation to metal stressors have been now decrypted. New knowledge on microbial reaction to metal contamination and the relationship between bacterial, archaeal, and fungal resistance to metals has broadened our understanding of metal homeostasis in living organisms. Recent reviews on metal toxicity and resistance mechanisms focused only on the role of transcriptomics, proteomics, metabolomics, and ionomics. This review is a critical analysis of key findings on physiological and genetic processes in plants and microorganisms in responses to soil metal contaminations.
Collapse
Affiliation(s)
| | - Gabriel Theriault
- Biomolecular Sciences Program, Laurentian University, Sudbury, ON, Canada
| | | | - Kersey Kalubi
- Biomolecular Sciences Program, Laurentian University, Sudbury, ON, Canada
| | - Kabwe Nkongolo
- Biomolecular Sciences Program, Laurentian University, Sudbury, ON, Canada.
- Department of Biology, Laurentian University, Sudbury, ON, Canada.
| |
Collapse
|
38
|
Sun Y, Jing R, Zheng F, Zhang S, Jiao W, Wang F. Evaluating phytotoxicity of bare and starch-stabilized zero-valent iron nanoparticles in mung bean. CHEMOSPHERE 2019; 236:124336. [PMID: 31310976 DOI: 10.1016/j.chemosphere.2019.07.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 07/04/2019] [Accepted: 07/08/2019] [Indexed: 06/10/2023]
Abstract
Zero-valent iron nanoparticles (nZVI) are among the most widely used nanoparticles in nanoremediation of various environmental pollutants. Environmental fate and impact of nZVI has attracted increasing concerns due to their potential risks. However, phytotoxicity of nZVI still remains poorly understood. Here, the phytotoxic effects of bare nZVI (B-nZVI) and starch-stabilized nZVI (S-nZVI) were evaluated on the germination of mung bean seeds exposed to suspensions with different doses of 0-1000 mg/L and the growth of hydroponically cultured seedling at 600 mg/L. In most cases, B-nZVI had no inhibition on seed germination, and even promotion on shoot and root elongation. However, S-nZVI displayed dose-dependent effects, with a decreased germination rate at 600-750 mg/L. B-nZVI at 600 mg/L showed no obvious phytotoxic but even stimulatory effects on seedling growth. Comparatively, S-nZVI at 600 mg/L produced significant phytotoxicity on mung bean plants, leading to decreased seedling growth, altered nutritional balance, and excess Fe accumulation in roots (>400 mg/kg). S-nZVI were observed to form a coating of insoluble Fe(III) compounds on root surface. Simultaneously, some nZVI penetrated and accumulated into root cells, but did not move to shoots. In conclusion, B-nZVI easily aggregate into larger particles in solution, leading to decreased adhesion to root surface and lower uptake by roots, whereas the higher dispersity and hydrophilicity of S-nZVI makes them more readily be adhered to root surface forming a coating, and penetrated into roots, resulting in excess Fe accumulation, consequently interfering with root functions such as the adsorption and transport of water and nutrients.
Collapse
Affiliation(s)
- Yuhuan Sun
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, 266042, PR China
| | - Rusha Jing
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, 266042, PR China
| | - Fangyuan Zheng
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, 266042, PR China
| | - Shuwu Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, 266042, PR China; Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Wentao Jiao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China
| | - Fayuan Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, 266042, PR China; Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China.
| |
Collapse
|
39
|
Li L, Long M, Islam F, Farooq MA, Wang J, Mwamba TM, Shou J, Zhou W. Synergistic effects of chromium and copper on photosynthetic inhibition, subcellular distribution, and related gene expression in Brassica napus cultivars. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:11827-11845. [PMID: 30820917 DOI: 10.1007/s11356-019-04450-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 01/31/2019] [Indexed: 06/09/2023]
Abstract
Nowadays, modern plant physiology focuses on complex behavior of metal co-contaminants in agrosystems. Keeping this in view, the current study was conducted to investigate the response of two Brassica napus cultivars (Zheda 622 and ZS 758) under co-contamination of copper (Cu2+) and chromium (Cr6+) to observe their effects on plant growth, photosynthetic parameters, and subcellular distribution of these metals in leaves and roots. The results showed that exposure to Cu and Cr causes decline in plant growth, including biomass and plant height. Significant decrease in pigment concentration and the photosynthetic activity [photosynthetic rate (Pn), stomatal conductance (Gs), and transpiration rate (E), maximal quantum yield of photosystem II (Fv/Fm)] in leaves was also observed. Results of subcellular distribution of metals showed that Cu and Cr were predominantly distributed in cell wall and soluble fraction of roots and leaves. Moreover, Cu and Cr in cellular fractions showed a synergistic accumulation pattern under combined metal stress treatment. Both cultivars showed increased levels of reactive oxygen species (ROS), i.e., hydrogen peroxide (H2O2) and superoxide radical (O2•-), and significant modulation in the activities of antioxidant enzymes [superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), ascorbate peroxidase (APX)] under Cu/Cr alone or their combined treatments. Similarly, expression levels of defense-related genes, such as BnCat, BnApx, BnPrx, and BnSod, were also generally up-regulated compared with control. Electron micrographs (TEM) of the mesophyll and root tip cells indicated prominent alterations both in cellular and organelle levels. Additionally, Cr was found to be more toxic than Cu but less than their combined effect, as revealed by enhanced production of oxidative stress and a reduction in biomass production and photosynthetic activity. The present results also suggest that cultivar ZS 758 is more resistant to Cu/Cr than Zheda 622, due to better adapted metabolism and maintenance of structural integrity under metal stress.
Collapse
Affiliation(s)
- Lan Li
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China
| | - Meijuan Long
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China
| | - Faisal Islam
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China
| | - Muhammad A Farooq
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China
| | - Jian Wang
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China
| | - Theodore M Mwamba
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China
| | - Jianyao Shou
- Zhuji Municipal Agro-Tech Extension Center, Zhuji, 311800, China.
| | - Weijun Zhou
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China.
| |
Collapse
|
40
|
Marwa N, Singh N, Srivastava S, Saxena G, Pandey V, Singh N. Characterizing the hypertolerance potential of two indigenous bacterial strains (Bacillus flexus and Acinetobacter junii) and their efficacy in arsenic bioremediation. J Appl Microbiol 2019; 126:1117-1127. [PMID: 30556924 DOI: 10.1111/jam.14179] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 11/30/2018] [Accepted: 12/11/2018] [Indexed: 11/27/2022]
Abstract
AIMS The aims of the study were to (i) isolate and characterize arsenic-tolerant bacterial strains, (ii) study the plant growth-promoting traits and (iii) explore their bioremediation potential. METHODS AND RESULTS Indigenous arsenic hypertolerant bacterial isolates NM02 and NM03 were screened as they were capable of growing at 150 mmol l-1 As (V) and 70 mmol l-1 As (III). They were identified on the basis of morphological, physiological and biochemical parameter and 16sDNA sequence as Bacillus flexus and Acinetobacter junii respectively. Genomic DNA analysis for the investigation of ars operon revealed the presence of metalloregulatory arsC gene, suggesting their ability to detoxify arsenic. The analysis for siderophore, phosphate solubilization, indole acetic acid (IAA) and ACC deaminase highlighted the intrinsic plant growth-promoting rhizobacteria traits of both the bacterial strains. The energy dispersive spectroscopy analysis proved the potential of cellular arsenic sequestration within the strains. Moreover, Fourier-transform infrared spectra revealed the repositioning of the spectral bands in As presence, indicating the presence of those functional groups on the bacterial surface that is involved in As adsorption. CONCLUSIONS Our results indicate that bacterial strains NM02 and NM03 were identified as potent applicants for arsenic bioremediation and possess the ability to facilitate plant growth. SIGNIFICANCE AND IMPACT OF THE STUDY The bacterial strains are proficient in As detoxification and can be employed for arsenic bioremediation; a cost-effective and in situ remediation technique for the polluted soil.
Collapse
Affiliation(s)
- N Marwa
- Plant Ecology and Environmental Sciences, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India.,Department of Botany, University of Lucknow, Lucknow, Uttar Pradesh, India
| | - N Singh
- Plant Ecology and Environmental Sciences, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
| | - S Srivastava
- Department of Plant-Microbe Interaction, CSIR- National Botanical Research Institute, Lucknow, Uttar Pradesh, India
| | - G Saxena
- Department of Botany, University of Lucknow, Lucknow, Uttar Pradesh, India
| | - V Pandey
- Plant Ecology and Environmental Sciences, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
| | - N Singh
- Plant Ecology and Environmental Sciences, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
| |
Collapse
|
41
|
Sun C, Dudley S, McGinnis M, Trumble J, Gan J. Acetaminophen detoxification in cucumber plants via induction of glutathione S-transferases. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 649:431-439. [PMID: 30176456 DOI: 10.1016/j.scitotenv.2018.08.346] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/24/2018] [Accepted: 08/25/2018] [Indexed: 06/08/2023]
Abstract
Many pharmaceutical and personal care products (PPCPs) enter agroecosystems during reuse of treated wastewater and biosolids, presenting potential impacts on plant development. Here, acetaminophen, one of the most-used pharmaceuticals, was used to explore roles of glutathione (GSH) conjugation in its biotransformation in crop plants. Acetaminophen was taken up by plants, and conjugated quickly with GSH. After exposure to 5 mg L-1 acetaminophen for 144 h, GSH-acetaminophen conjugates were 15.2 ± 1.3 nmol g-1 and 1.2 ± 0.1 nmol g-1 in cucumber roots and leaves, respectively. Glutathione-acetaminophen was also observed in common bean, alfalfa, tomato, and wheat. Inhibition of cytochrome P450 decreased GSH conjugation. Moreover, the GSH conjugate was found to further convert to cysteine and N-acetylcysteine conjugates. Glutathione S-transferase activity was significantly elevated after exposure to acetaminophen, while levels of GSH decreased by 55.4% in roots after 48 h, followed by a gradual recovery thereafter. Enzymes involved in GSH synthesis, regeneration and transport were consistently induced to maintain the GSH homeostasis. Therefore, GST-mediated conjugation likely played a crucial role in minimizing phytotoxicity of acetaminophen and other PPCPs in plants.
Collapse
Affiliation(s)
- Chengliang Sun
- Department of Environmental Sciences, University of California, Riverside, CA 92521, USA.
| | - Stacia Dudley
- Department of Environmental Sciences, University of California, Riverside, CA 92521, USA
| | - Michelle McGinnis
- Department of Environmental Sciences, University of California, Riverside, CA 92521, USA
| | - John Trumble
- Department of Entomology, University of California, Riverside, CA 92521, USA
| | - Jay Gan
- Department of Environmental Sciences, University of California, Riverside, CA 92521, USA
| |
Collapse
|
42
|
Ponce SC, Prado C, Pagano E, Prado FE, Rosa M. Effect of pH on Cr(III) accumulation, biomass production, and phenolic profile in 2 Salvinia species. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:167-176. [PMID: 30303559 DOI: 10.1002/etc.4296] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 08/07/2018] [Accepted: 10/08/2018] [Indexed: 06/08/2023]
Abstract
We analyzed the effect of pH on Cr(III) accumulation, biomass production, and phenolic profile of Salvinia rotundifolia and Salvinia minima plants grown in the presence of increasing concentrations of CrCl3 . Biomass accumulation, metal tolerance index, and photosynthetic pigment contents indicate that Salvinia rotundifolia seems to be more tolerant of Cr(III) than S. minima at different pHs. Increased metal accumulation by Salvinia species under increasing pH could be explained by changes of the protonation status of cell wall functional groups because both the highest and the lowest pH values used in the present study were outside of the levels at which Cr(III) species start to precipitate. The metal translocation factor indicates that in buffered conditions S. rotundifolia tend to retain more Cr(III) in lacinias than S. minima, probably through the involvement of insoluble phenolics. The results of the present study could be useful to the management of solution pH to maximize the removal of Cr(III) by aquatic plants. Environ Toxicol Chem 2019;38:167-176. © 2018 SETAC.
Collapse
Affiliation(s)
- Silvana Chocobar Ponce
- Instituto de Bioprospección y Fisiología Vegetal, CONICET-UNT, Cátedra de Fisiología Vegetal, Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Carolina Prado
- Instituto de Bioprospección y Fisiología Vegetal, CONICET-UNT, Cátedra de Fisiología Vegetal, Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Eduardo Pagano
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones en Biociencias Agrícolas y Ambientales, Facultad de Agronomía, Buenos Aires, Argentina
| | - Fernando E Prado
- Instituto de Bioprospección y Fisiología Vegetal, CONICET-UNT, Cátedra de Fisiología Vegetal, Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Mariana Rosa
- Instituto de Bioprospección y Fisiología Vegetal, CONICET-UNT, Cátedra de Fisiología Vegetal, Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán, Tucumán, Argentina
| |
Collapse
|
43
|
Amin H, Ahmed Arain B, Abbasi MS, Amin F, Jahangir TM, Soomro NUA. Evaluation of chromium phyto-toxicity, phyto-tolerance, and phyto-accumulation using biofuel plants for effective phytoremediation. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:352-363. [PMID: 30638047 DOI: 10.1080/15226514.2018.1524837] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Contamination of chromium signifies one of the major threats to soil system. Phytoremediation is a promising technique to reclaim metal-contaminated soil using plants which are capable to tolerate and accumulate heavy metals within in their tissues. The experiment reported in this article was carried out with six biofuel plant species, Cyamopsis tetragonoloba, Glycine max, Avena sativa, Abelmoschus esculentus, Sesamum indicum and Guizotia abyssinica, were subjected to eight Cr concentrations (0.5, 2.5, 5, 10, 25, 50, 75 and 100 mg kg-1 soil) to investigate Cr toxicity, tolerance and accumulation. After 12 weeks of experiment, Cr phytotoxicity on morphological and biochemical parameters were evaluated. For six plant species, seed germination and most of growth parameters were significantly (p < 0.05) reduced under high Cr stress. Chlorophyll contents were also decreased with increased Cr concentrations. Accumulation of Cr was higher in roots than shoot in all studied plants. Significant Cr accumulation was in the order of C. tetragonoloba > A. sativa > A. esculentus > S. indicum > G. max > G. abyssinica. Bioconcentration factor, bioaccumulation coefficient, translocation factor and phytoremdiation ratio suggested that C. tetragonoloba, A. sativa and A. esculentus being more tolerant; having higher Cr accumulation and could be a high efficient plants for reclamation of Cr-contaminated soils.
Collapse
Affiliation(s)
- Hira Amin
- a Institute of Plant Sciences , University of Sindh , Jamshoro , Pakistan
| | - Basir Ahmed Arain
- a Institute of Plant Sciences , University of Sindh , Jamshoro , Pakistan
| | - Muhammad Sadiq Abbasi
- b Department of Mathematics and Statistics , Quaid-e-Awam University of Engineering, Science and Technology , Nawabshah , Pakistan
| | - Farah Amin
- c National Centre of Excellence in Analytical Chemistry , University of Sindh , Jamshoro , Pakistan
| | - Taj Muhammad Jahangir
- d Institute of Advanced Research Studies in Chemical Sciences , University of Sindh , Jamshoro , Pakistan
| | - Noor-Ul-Ain Soomro
- a Institute of Plant Sciences , University of Sindh , Jamshoro , Pakistan
| |
Collapse
|
44
|
Rajput V, Minkina T, Fedorenko A, Sushkova S, Mandzhieva S, Lysenko V, Duplii N, Fedorenko G, Dvadnenko K, Ghazaryan K. Toxicity of copper oxide nanoparticles on spring barley (Hordeum sativum distichum). THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 645:1103-1113. [PMID: 30248835 DOI: 10.1016/j.scitotenv.2018.07.211] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/13/2018] [Accepted: 07/16/2018] [Indexed: 06/08/2023]
Abstract
The rapid growth of copper oxide nanoparticles (CuO NPs) production and its abundant uses in many industries, and increasing release into an environment from both intentional and unintentional sources, create risks to spring barley (Hordeum sativum distichum), one of the most important staple food crop. Thereby, the aim of this study was to investigate the phytotoxicity of CuO NPs on H. sativum growth in hydroponic system. The CuO NPs inhibited H. sativum growth by affecting the germination rate, root and shoot lengths, maximal quantum yield of photosystem II, and transpiration rate. Structural and ultrastructural examination of H. sativum tissues using light, transmission and scanning electron microscopy showed effects on stomatal aperture and root morphology, metaxylem size and changes in cellular organelles (plastids, mitochondria), as well as in plastoglobules, starch granules, protoplasm, and membranes. The formation of electron-dense materials was noted in the intercellular space of cells of CuO NPs-treated plants. In addition, relative root length was one-third (35%) that of the control, and relative shoot length (10%) was also reduced. Further, the Cu content of roots and leaves of CuO NPs-treated plants was 5.7 and 6.4-folds higher than the control (without CuO NPs), respectively. Presented data were significant at p ≤ 0.05 compared to control. Conclusively, the results provide insights into our understanding of CuO NPs toxicity on H. sativum, and findings could be used for developing strategies for safe disposal of NPs.
Collapse
Affiliation(s)
- Vishnu Rajput
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia.
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Alexey Fedorenko
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia; Southern Scientific Center of Russian Academy of Sciences, Rostov-on-Don 344006, Russia
| | - Svetlana Sushkova
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Saglara Mandzhieva
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Vladimir Lysenko
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Nadezhda Duplii
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Grigory Fedorenko
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia; Southern Scientific Center of Russian Academy of Sciences, Rostov-on-Don 344006, Russia
| | - Konstantin Dvadnenko
- Southern Scientific Center of Russian Academy of Sciences, Rostov-on-Don 344006, Russia
| | - Karen Ghazaryan
- Department of Ecology and Nature Protection, Yerevan State University, Yerevan 0025, Armenia
| |
Collapse
|
45
|
Qiao L, Tanveer M, Wang L, Tian C. Subcellular distribution and chemical forms of lithium in Li-accumulator Apocynum venetum. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 132:341-344. [PMID: 30248520 DOI: 10.1016/j.plaphy.2018.09.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 09/04/2018] [Accepted: 09/17/2018] [Indexed: 06/08/2023]
Abstract
Apocynum venetum is a promising species to remediate an emerging environmental contaminant lithium (Li). However, no research has been conducted so far relating Li tolerance mechanism. In order to improve the understanding of Li transportation and detoxification, subcellular accumulation and distribution of different chemical forms of Li was studied in Apocynum venetum. Subcellular Li compartmentalization analysis showed that majority of Li was located in vacuole (45.52-72.65%) and cell wall (14.84-29.02%) under Li treatment. Furthermore, water soluble and ethonal extracted Li (inorganic Li) are the main chemical forms of Li taken up by A. venetum. With the increase of Li concentration in the medium, Li content in all subcellular fractions and proportion of F-ethanol form with high mobility increased. The greatest amount of Li was found in soluble fraction in leaves at 25 mg L-1 Li treatment, followed by soluble fraction in leaves at 2.5 mg L-1. These results suggest that Li compartmentation in leaf vacuoles is important in Li detoxification and Li accumulation of A. venetum.
Collapse
Affiliation(s)
- Litao Qiao
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China; University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Mohsin Tanveer
- School of Land and Food, University of Tasmania, Hobart, Australia
| | - Lei Wang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China.
| | - Changyan Tian
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China.
| |
Collapse
|
46
|
Minkina T, Fedorenko G, Nevidomskaya D, Fedorenko A, Chaplygin V, Mandzhieva S. Morphological and anatomical changes of Phragmites australis Cav. due to the uptake and accumulation of heavy metals from polluted soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 636:392-401. [PMID: 29709856 DOI: 10.1016/j.scitotenv.2018.04.306] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 04/06/2018] [Accepted: 04/23/2018] [Indexed: 06/08/2023]
Abstract
The effect of strong chemical contamination of soils on the growth and structure of reed (Phragmites australis Cav.) roots and stems has been investigated. Soils and plants on monitoring plots in the zone of industrial sewage tanks and sludge reservoirs in the city of Kamensk-Shakhtinskii (southern Russia) were studied. Polyelement pollution of soils on the studied monitoring plots was revealed, with exceedances of Clarkes in hundreds of times for Zn and Cd, in tens of times for Pb, and in several times for Cu, Ni, Cr, and Mn. An ecological-geochemical estimation revealed an extremely hazardous level of soil contamination HMs in total. It is shown that the high level of soil contamination decelerates the ontogenetic development of plants and decreases their morphometric parameters. Electron-microscopic study of plants revealed changes in the ultrastructure of cell membranes, as well as the main cytoplasmic organelles of root and stem cells (mitochondria, plastids, etc.). It is suggested that the revealed structural changes in epidermis and mesoderm under the impact of metals hamper the radial migration of fluid in the root from the peripheral parts. These changes are one of the reasons for the decrease in the level of nutrient uptake and translocation from roots to shoots.
Collapse
Affiliation(s)
| | - Grigoriy Fedorenko
- Southern Federal University, Rostov-on-Don 344006, Russia; Federal Research Center the Southern Scientific Center of the Russian Academy of Sciences, Chehova st., Rostov-on-Don 344006, Russia
| | | | - Aleksei Fedorenko
- Southern Federal University, Rostov-on-Don 344006, Russia; Federal Research Center the Southern Scientific Center of the Russian Academy of Sciences, Chehova st., Rostov-on-Don 344006, Russia
| | | | | |
Collapse
|
47
|
Xu X, Zhang S, Xian J, Yang Z, Cheng Z, Li T, Jia Y, Pu Y, Li Y. Subcellular distribution, chemical forms and thiol synthesis involved in cadmium tolerance and detoxification in Siegesbeckia orientalis L. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2018; 20:973-980. [PMID: 28862489 DOI: 10.1080/15226514.2017.1365351] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Siegesbeckia orientalis L. is a promising species for cadmium (Cd) phytoextraction with large biomass and fast growth rate, while little information about their intracellular mechanisms involved in Cd tolerance and detoxification has been explored. A soil pot experiment with total target Cd concentrations of 0, 10, 50, 100, and 150 mg kg-1 were designed to investigate the subcellular distribution, chemical forms and thiol synthesis characteristics of Cd in S. orientalis. More than 90% of Cd was bound to the soluble fractions (48.4-76.5%) and cell walls (19.9-46.3%). Increasing soil Cd concentrations enhanced Cd sequestration into the cell walls. Most of the Cd (69.8-82.7%) in the plant organ was mainly in the forms of pectate and protein integrated Cd and undissolved Cd phosphate, while a minor portion (6.8-20.9%) was in the forms of the inorganic Cd and the water soluble Cd. Nonprotein thiols and phytochelatins significantly increased with increasing soil Cd treatment levels, while glutathione concentrations had no obvious change trends. Therefore, intracellular detoxification mechanisms of Cd in S. orientalis mainly rely on formation of less toxic Cd chemical forms, store of a large amount of Cd in cell wall and synthesis of thiol compounds.
Collapse
Affiliation(s)
- Xiaoxun Xu
- a College of Environmental Sciences, Sichuan Agricultural University , Wenjiang , China
| | - Shirong Zhang
- a College of Environmental Sciences, Sichuan Agricultural University , Wenjiang , China
| | - Junren Xian
- a College of Environmental Sciences, Sichuan Agricultural University , Wenjiang , China
| | - Zhanbiao Yang
- a College of Environmental Sciences, Sichuan Agricultural University , Wenjiang , China
| | - Zhang Cheng
- a College of Environmental Sciences, Sichuan Agricultural University , Wenjiang , China
| | - Ting Li
- b College of Resources, Sichuan Agricultural University , Wenjiang , China
| | - Yongxia Jia
- b College of Resources, Sichuan Agricultural University , Wenjiang , China
| | - Yulin Pu
- b College of Resources, Sichuan Agricultural University , Wenjiang , China
| | - Yun Li
- b College of Resources, Sichuan Agricultural University , Wenjiang , China
| |
Collapse
|
48
|
Piwowarczyk B, Tokarz K, Muszyńska E, Makowski W, Jędrzejczyk R, Gajewski Z, Hanus-Fajerska E. The acclimatization strategies of kidney vetch (Anthyllis vulneraria L.) to Pb toxicity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:19739-19752. [PMID: 29736650 PMCID: PMC6061510 DOI: 10.1007/s11356-018-2197-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 04/30/2018] [Indexed: 04/12/2023]
Abstract
Kidney vetch (Anthyllis vulneraria L.) is a well-known Zn hyperaccumulator. Zn often occurs with Pb in one ore; thus, plants inhabiting waste dumps are exposed not only to Zn but also to Pb toxicity. While the response of kidney vetch to Zn toxicity is relatively well known, the Pb survival strategy of Anthyllis vulneraria has not been the subject of investigations. The aim of presented research was to determine the survival strategy of kidney vetch exposed to high lead concentrations. Shoot explants of a calamine kidney vetch ecotype were placed on agar media containing 0.0, 0.5, 1.0, and 1.5 mM Pb. Morphological, physiological, and biochemical responses, in particular photosynthetic apparatus of plantlets, were examined. The most pronounced changes were observed in plants grown on media supplemented with 1.5 mM Pb after 8 weeks of culture. Increased dry weight and high lead accumulation were observed in roots. Similarly, in shoots, increased dry weight and a decreased number of newly formed shoots were recorded. The accumulation of lead was many times lower in shoots than in roots. In leaf cells' ultra-structure, looser arrangement of chloroplast thylakoid grana was observed. Despite the decrease in chlorophyll a and carotenoid content, the photosynthetic apparatus remained efficient due to the lack of photoinhibition and increased electron transport rate beyond photosystem II (PSII). For the first time, an acclimatization mechanism based on maintaining the high efficiency of photosynthetic apparatus resulting from increasing of electron transport rate was described.
Collapse
Affiliation(s)
- Barbara Piwowarczyk
- Unit of Botany and Plant Physiology, Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29 Listopada 54, 31-425, Kraków, Poland
| | - Krzysztof Tokarz
- Unit of Botany and Plant Physiology, Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29 Listopada 54, 31-425, Kraków, Poland.
| | - Ewa Muszyńska
- Department of Botany, Faculty of Agriculture and Biology, Warsaw University of Life Sciences, ul. Nowoursynowska 159/37, 02-776, Warsaw, Poland
| | - Wojciech Makowski
- Unit of Botany and Plant Physiology, Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29 Listopada 54, 31-425, Kraków, Poland
| | - Roman Jędrzejczyk
- Bioremediation Department, Malopolska Centre of Biotechnology, Jagiellonian University, ul. Gronostajowa 7A, 30-387, Kraków, Poland
| | - Zbigniew Gajewski
- Unit of Botany and Plant Physiology, Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29 Listopada 54, 31-425, Kraków, Poland
| | - Ewa Hanus-Fajerska
- Unit of Botany and Plant Physiology, Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29 Listopada 54, 31-425, Kraków, Poland
| |
Collapse
|
49
|
Jia X, Zhang C, Zhao Y, Liu T, He Y. Three years of exposure to lead and elevated CO 2 affects lead accumulation and leaf defenses in Robinia pseudoacacia L. seedlings. JOURNAL OF HAZARDOUS MATERIALS 2018; 349:215-223. [PMID: 29427972 DOI: 10.1016/j.jhazmat.2018.02.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 02/02/2018] [Accepted: 02/03/2018] [Indexed: 06/08/2023]
Abstract
Few studies have explored the long-term effects of elevated atmospheric CO2 combined with lead (Pb) contamination on plants. The objective of this study was to examine the effects of 3 years of elevated CO2 (700 ± 23 μmol mol-1) on Pb accumulation and plant defenses in leaves of Robinia pseudoacacia L. seedlings in exposed to Pb (500 mg kg-1 soil). Elevated CO2 increased Pb accumulation in leaves and Pb removal rate in soils. In plants exposed to Pb stress, total chlorophyll and carotenoid contents in leaves were lower under elevated CO2 than under ambient CO2, but seedling height and width increased under elevated CO2 relative to ambient CO2. Elevated CO2 significantly (p < .01) stimulated malondialdehyde content in leaves under Pb exposure. Superoxide dismutase and catalase activity increased significantly (p < .01), peroxidase activity decreased significantly (p < .01), and glutathione, cystine, and phytochelatin contents increased under elevated CO2 + Pb relative to Pb alone. Elevated CO2 stimulated the production of soluble sugars, proline, flavonoids, saponins, and phenolics in plants exposed to Pb stress. Ove rall, long-term elevation of CO2 increased Pb-induced oxidative damage in seedlings, but enhanced the phytoextraction of Pb from contaminated soils.
Collapse
Affiliation(s)
- Xia Jia
- School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Key Laboratory of Environmental Protection & Pollution and Remediation of Water and Soil of Shaanxi Province, Chang'an University, Xi'an 710054, PR China.
| | - Chunyan Zhang
- School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Key Laboratory of Environmental Protection & Pollution and Remediation of Water and Soil of Shaanxi Province, Chang'an University, Xi'an 710054, PR China
| | - Yonghua Zhao
- The School of Earth Science and Resources, Chang'an University, Xi'an 710054, PR China.
| | - Tuo Liu
- School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Key Laboratory of Environmental Protection & Pollution and Remediation of Water and Soil of Shaanxi Province, Chang'an University, Xi'an 710054, PR China
| | - Yunhua He
- School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Key Laboratory of Environmental Protection & Pollution and Remediation of Water and Soil of Shaanxi Province, Chang'an University, Xi'an 710054, PR China
| |
Collapse
|
50
|
Jia X, Zhao YH, Liu T, He YH. Leaf defense system of Robinia pseudoacacia L. seedlings exposed to 3years of elevated atmospheric CO 2 and Cd-contaminated soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 605-606:48-57. [PMID: 28654808 DOI: 10.1016/j.scitotenv.2017.06.172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Revised: 06/21/2017] [Accepted: 06/21/2017] [Indexed: 06/07/2023]
Abstract
Short-term exposure to elevated CO2 increases cadmium (Cd) uptake in some plant species (wheat, poplars, and willows), which triggers an increase in antioxidative system activity to deal with additional reactive oxygen species that are generated. Here, we examined leaf defenses in Robinia pseudoacacia L. seedlings exposed to elevated CO2+Cd for 3years. Three years of elevated CO2 decreased Cd uptake into leaves and the Cd content in soils and increased the pH of rhizosphere soil relative to ambient CO2. In plants exposed to Cd stress, leaf chlorophyll content was greater under elevated CO2 than under ambient CO2. Superoxide dismutase, peroxidase, and catalase activity increased, glutathione content increased, and malondialdehyde and phytochelatins contents decreased under elevated CO2+Cd relative to Cd alone. Proline, soluble sugars, flavonoids, saponins, and phenolic acids contents were greater under elevated CO2+Cd than under Cd alone, and condensed tannin content was lower. Overall, long-term elevation of CO2 enhanced the leaf defense system of R. pseudoacacia exposed to Cd by stimulating antioxidant enzyme activity, osmotic adjustment, and the production of glutathione, flavonoids and phenolic acids. Future research should focus on understanding the mechanisms involved in the decrease in Cd uptake into leaves and Cd content in soils and the increase in rhizosphere soil pH under long-term exposure to elevated CO2.
Collapse
Affiliation(s)
- X Jia
- School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Key Laboratory of Environmental Protection & Pollution and Remediation of Water and Soil of Shaanxi Province, Chang'an University, Xi'an 710054, PR China.
| | - Y H Zhao
- The School of Earth Science and Resources, Chang'an University, Xi'an 710054, PR China
| | - T Liu
- School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Key Laboratory of Environmental Protection & Pollution and Remediation of Water and Soil of Shaanxi Province, Chang'an University, Xi'an 710054, PR China
| | - Y H He
- School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Key Laboratory of Environmental Protection & Pollution and Remediation of Water and Soil of Shaanxi Province, Chang'an University, Xi'an 710054, PR China
| |
Collapse
|