1
|
Barathan M, Ng SL, Lokanathan Y, Ng MH, Law JX. Plant Defense Mechanisms against Polycyclic Aromatic Hydrocarbon Contamination: Insights into the Role of Extracellular Vesicles. TOXICS 2024; 12:653. [PMID: 39330582 PMCID: PMC11436043 DOI: 10.3390/toxics12090653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2024] [Revised: 08/22/2024] [Accepted: 09/04/2024] [Indexed: 09/28/2024]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are persistent organic pollutants that pose significant environmental and health risks. These compounds originate from both natural phenomena, such as volcanic activity and wildfires, and anthropogenic sources, including vehicular emissions, industrial processes, and fossil fuel combustion. Their classification as carcinogenic, mutagenic, and teratogenic substances link them to various cancers and health disorders. PAHs are categorized into low-molecular-weight (LMW) and high-molecular-weight (HMW) groups, with HMW PAHs exhibiting greater resistance to degradation and a tendency to accumulate in sediments and biological tissues. Soil serves as a primary reservoir for PAHs, particularly in areas of high emissions, creating substantial risks through ingestion, dermal contact, and inhalation. Coastal and aquatic ecosystems are especially vulnerable due to concentrated human activities, with PAH persistence disrupting microbial communities, inhibiting plant growth, and altering ecosystem functions, potentially leading to biodiversity loss. In plants, PAH contamination manifests as a form of abiotic stress, inducing oxidative stress, cellular damage, and growth inhibition. Plants respond by activating antioxidant defenses and stress-related pathways. A notable aspect of plant defense mechanisms involves plant-derived extracellular vesicles (PDEVs), which are membrane-bound nanoparticles released by plant cells. These PDEVs play a crucial role in enhancing plant resistance to PAHs by facilitating intercellular communication and coordinating defense responses. The interaction between PAHs and PDEVs, while not fully elucidated, suggests a complex interplay of cellular defense mechanisms. PDEVs may contribute to PAH detoxification through pollutant sequestration or by delivering enzymes capable of PAH degradation. Studying PDEVs provides valuable insights into plant stress resilience mechanisms and offers potential new strategies for mitigating PAH-induced stress in plants and ecosystems.
Collapse
Affiliation(s)
- Muttiah Barathan
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
| | - Sook Luan Ng
- Department of Craniofacial Diagnostics and Biosciences, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Yogeswaran Lokanathan
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
| | - Min Hwei Ng
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
| | - Jia Xian Law
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
| |
Collapse
|
2
|
Moon HG, Bae S, Chae Y, Kim YJ, Kim HM, Song M, Bae MS, Lee CH, Ha T, Seo JS, Kim S. Assessment of potential ecological risk for polycyclic aromatic hydrocarbons in urban soils with high level of atmospheric particulate matter concentration. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 272:116014. [PMID: 38295737 DOI: 10.1016/j.ecoenv.2024.116014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/06/2023] [Accepted: 01/21/2024] [Indexed: 02/25/2024]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are known to be representative carcinogenic environmental pollutants with high toxicity. However, information on the potential ecological and environmental risks of PAH contamination in soil remains scarce. Thus, this study was evaluated the potential ecological risks of PAHs in soils of five Korean areas (Gunsan (GS), Gwangju, Yeongnam, Busan, and Gangwon) using organic carbon (OC)-normalized analysis, mean effect range-median quotient (M-ERM-Q), toxic equivalent quantity (TEQ) analysis, and risk quotient (RQ) derived by the species sensitivity distribution model. In this study, atmospheric particulate matter has a significant effect on soil pollution in GS through the presence of hopanes and the similar pattern of PAHs in soil and atmospheric PAHs. From analysis of source identification, combustion sources in soils of GS were important PAH sources. For PAHs in soils of GS, the OC-normalized analysis, M-ERM-Q, and TEQ analysis have 26.78 × 105 ng/g-OC, 0.218, and 49.72, respectively. Therefore, the potential ecological risk assessment results showed that GS had moderate-high ecological risk and moderate-high carcinogenic risk, whereas the other regions had low ecological risk and low-moderate carcinogenic risk. The risk level (M-ERM-Q) of PAH contamination in GS was similar to that in Changchun and Xiangxi Bay in China. The Port Harcourt City in Nigeria for PAH has the highest risk (M-ERM-Q = 4.02 and TEQ = 7923). Especially, compared to China (RQPhe =0.025 and 0.05), and Nigeria (0.059), phenanthrene showed the highest ecological risk in Korea (0.001-0.18). Korea should focus on controlling the release of PAHs originating from the PM in GS.
Collapse
Affiliation(s)
- Hi Gyu Moon
- Ecological Risk Assessment Center, Gyeongnam Branch Institute, Korea Institute of Toxicology (KIT), Jinju 52834, the Republic of Korea
| | - Seonhee Bae
- Ecological Risk Assessment Center, Gyeongnam Branch Institute, Korea Institute of Toxicology (KIT), Jinju 52834, the Republic of Korea
| | - Yooeun Chae
- Ecological Risk Assessment Center, Gyeongnam Branch Institute, Korea Institute of Toxicology (KIT), Jinju 52834, the Republic of Korea
| | - Yong-Jae Kim
- Medical Industry Venture Center, Korea Testing Laboratory, Wonju 26495, the Republic of Korea
| | - Hyung-Min Kim
- Ecological Risk Assessment Center, Gyeongnam Branch Institute, Korea Institute of Toxicology (KIT), Jinju 52834, the Republic of Korea
| | - Mijung Song
- Department of Earth and Environmental Sciences, Jeonbuk National University, the Republic of Korea
| | - Min-Suk Bae
- Department of Environmental Engineering, Mokpo National University, Muan 58554, the Republic of Korea
| | - Chil-Hyoung Lee
- Green Energy & Nano Technology R&D Group, Korea Institute of Industrial Technology, Gwangju 61012, the Republic of Korea
| | - Taewon Ha
- Green Energy & Nano Technology R&D Group, Korea Institute of Industrial Technology, Gwangju 61012, the Republic of Korea
| | - Jong-Su Seo
- Ecological Risk Assessment Center, Gyeongnam Branch Institute, Korea Institute of Toxicology (KIT), Jinju 52834, the Republic of Korea.
| | - Sooyeon Kim
- Ecological Risk Assessment Center, Gyeongnam Branch Institute, Korea Institute of Toxicology (KIT), Jinju 52834, the Republic of Korea.
| |
Collapse
|
3
|
Kaur R, Gupta S, Tripathi V, Chauhan A, Parashar D, Shankar P, Kashyap V. Microbiome based approaches for the degradation of polycyclic aromatic hydrocarbons (PAHs): A current perception. CHEMOSPHERE 2023; 341:139951. [PMID: 37652248 DOI: 10.1016/j.chemosphere.2023.139951] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 08/02/2023] [Accepted: 08/22/2023] [Indexed: 09/02/2023]
Abstract
Globally, polycyclic aromatic hydrocarbons (PAHs) pollution is primarily driven by their release into the air through various combustion processes, including burning fossil fuels such as coal, oil, and gas in motor vehicles, power plants, and industries, as well as burning organic matter like wood, tobacco, and food in fireplaces, cigarettes, and grills. Apart from anthropogenic pollution sources, PAHs also occur naturally in crude oil, and their potential release during oil extraction, refining processes, and combustion further contributes to contamination and pollution concerns. PAHs are resistant and persistent in the environment because of their inherent features, viz., heterocyclic aromatic ring configurations, hydrophobicity, and thermostability. A wide range of microorganisms have been found to be effective degraders of these recalcitrant contaminants. The presence of hydrocarbons as a result of numerous anthropogenic activities is one of the primary environmental concerns. PAHs are found in soil, water, and the air, making them ubiquitous in nature. The presence of PAHs in the environment creates a problem, as their presence has a detrimental effect on humans and animals. For a variety of life forms, PAH pollutants are reported to be toxic, carcinogenic, mutation-inducing, teratogenic, and immune toxicogenics. Degradation of PAHs via biological activity is an extensively used approach in which diverse microorganisms (fungal, algal, clitellate, and protozoan) and plant species and their derived composites are utilized as biocatalysts and biosurfactants. Some microbes have the ability to transform and degrade these PAHs, allowing them to be removed from the environment. The goal of this review is to provide a critical overview of the existing understanding of PAH biodegradation. It also examines current advances in diverse methodologies for PAH degradation in order to shed light on fundamental challenges and future potential.
Collapse
Affiliation(s)
- Rasanpreet Kaur
- Department of Biotechnology, GLA University, Mathura, 281406, Uttar Pradesh, India
| | - Saurabh Gupta
- Department of Biotechnology, GLA University, Mathura, 281406, Uttar Pradesh, India.
| | - Vishal Tripathi
- Department of Biotechnology, Graphic Era (Deemed to Be University), Dehradun 248002, Uttarakhand, India
| | - Arjun Chauhan
- Department of Biotechnology, GLA University, Mathura, 281406, Uttar Pradesh, India
| | - Deepak Parashar
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Prem Shankar
- Department of Neurobiology, The University of Texas Medical Branch, 301 University Blvd, Galveston, TX-77555, USA
| | - Vivek Kashyap
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, Texas, 78504, USA; South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA.
| |
Collapse
|
4
|
Fu J, Ji J, Luo L, Li X, Zhuang X, Ma Y, Wen Q, Zhu Y, Ma J, Huang J, Zhang D, Lu S. Temporal and spatial distributions, source identification, and health risk assessment of polycyclic aromatic hydrocarbons in PM 2.5 from 2016 to 2021 in Shenzhen, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:103788-103800. [PMID: 37697187 DOI: 10.1007/s11356-023-29686-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/30/2023] [Indexed: 09/13/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous contaminants in the atmosphere that have drawn intense attention due to their carcinogenicity and mutagenicity. In this work, 1424 air samples were collected between January 2016 and December 2021 in three areas of Shenzhen, China to determine the concentrations of PM2.5 and PAHs and their spatiotemporal variation. Human health risks due to the daily intake and uptake of PAHs and the resulting incremental lifetime cancer risk (ILCR) were also evaluated. PAHs were detected frequently in the samples at concentrations between 0.28 and 32.7 ng/m3 (median: 1.04 ng/m3). PM2.5 and PAH concentrations decreased from 2016 to 2021, and the Yantian area had lower median concentrations of PM2.5 (23.0 μg/m3) and PAHs (0.02 ng/m3) than the Longgang and Nanshan areas. The concentrations of PM2.5 and PAHs were significantly higher in winter than in summer. Analysis of diagnostic ratios indicated that petroleum combustion was the dominant source of airborne PAHs in Shenzhen. The estimated daily intake (EDI) and uptake (EDU) of PAHs by local residents decreased gradually with increasing age, indicating that infants are at particular risk of PAH exposure. However, the incremental lifetime cancer risks (ILCRs) were below the threshold value of 10-6, indicating that inhalation exposure to PAHs posed a negligible carcinogenic risk to Shenzhen residents. While promising, these results may underestimate actual PAH exposure levels, so further analysis of health risks due to PAHs in Shenzhen is needed.
Collapse
Affiliation(s)
- Jinfeng Fu
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, China
| | - Jiajia Ji
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Lan Luo
- Longhua District Center for Disease Control and Prevention, Shenzhen, 518054, China
| | - Xiaoheng Li
- Longhua District Center for Disease Control and Prevention, Shenzhen, 518054, China
| | - Xiaoxin Zhuang
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, China
| | - Ying Ma
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, China
| | - Qilan Wen
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, China
| | - Yue Zhu
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, China
| | - Jiaojiao Ma
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, China
| | - Jiayin Huang
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, China
| | - Duo Zhang
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, China
| | - Shaoyou Lu
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, China.
| |
Collapse
|