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Talukdar P, Baruah A, Bhuyan SJ, Boruah S, Borah P, Bora C, Basumatary B. Costus speciosus (Koen ex. Retz.) Sm.: a suitable plant species for remediation of crude oil and mercury-contaminated soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:31843-31861. [PMID: 38639901 DOI: 10.1007/s11356-024-33376-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 04/13/2024] [Indexed: 04/20/2024]
Abstract
The aim of this study was to evaluate the efficiency of Costus speciosus (Koen ex. Retz.) Sm. in the degradation of crude oil and reduction of mercury (Hg) from the contaminated soil in pot experiments in the net house for 180 days. C. speciosus was transplanted in soil containing 19150 mg kg-1 crude oil and 3.2 mg kg-1 Hg. The study includes the evaluation of plant biomass, height, root length, total petroleum hydrocarbon (TPH) degradation, and Hg reduction in soil, TPH, and Hg accumulation in plants grown in fertilized and unfertilized pots, chlorophyll production, and rhizospheric most probable number (MPN) at 60-day interval. The average biomass production and heights of C. speciosus in contaminated treatments were significantly (p < 0.05) lower compared to the unvegetated control. Plants grown in contaminated soil showed relatively reduced root surface area compared to the uncontaminated treatments. TPH degradation in planted fertilized, unplanted, and planted unfertilized pot was 63%, 0.8%, and 38%, respectively. However, compared to unvegetated treatments, TPH degradation was significantly higher (p < 0.05) in vegetated treatments. A comparison of fertilized and unfertilized soils showed that TPH accumulation in plant roots and shoots was relatively higher in fertilized soils. Hg degradation in soil was significantly (p < 0.05) more in planted treatment compared to unplanted treatments. The fertilized soil showed relatively more Hg degradation in soil and its accumulation in roots and shoots of plants in comparison to unfertilized soil. MPN in treatments with plants was significantly greater (p < 0.05) than without plants. The plant's ability to produce biomass, chlorophyll, break down crude oil, reduce Hg levels in soil, and accumulate TPH and Hg in roots and shoots of the plant all point to the possibility of using this plant to remove TPH and Hg from soil.
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Affiliation(s)
- Parismita Talukdar
- Plant Ecology Laboratory, Department of Botany, North Lakhimpur College (Autonomous), Khelmati, 787031, Lakhimpur, Assam, India
| | - Aryan Baruah
- Plant Ecology Laboratory, Department of Botany, North Lakhimpur College (Autonomous), Khelmati, 787031, Lakhimpur, Assam, India
| | - Sameer Jyoti Bhuyan
- Plant Ecology Laboratory, Department of Botany, North Lakhimpur College (Autonomous), Khelmati, 787031, Lakhimpur, Assam, India
| | - Swati Boruah
- Plant Ecology Laboratory, Department of Botany, North Lakhimpur College (Autonomous), Khelmati, 787031, Lakhimpur, Assam, India
| | - Pujashree Borah
- Plant Ecology Laboratory, Department of Botany, North Lakhimpur College (Autonomous), Khelmati, 787031, Lakhimpur, Assam, India
| | - Chittaranjan Bora
- Plant Ecology Laboratory, Department of Botany, North Lakhimpur College (Autonomous), Khelmati, 787031, Lakhimpur, Assam, India
| | - Budhadev Basumatary
- Plant Ecology Laboratory, Department of Botany, North Lakhimpur College (Autonomous), Khelmati, 787031, Lakhimpur, Assam, India.
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Nan Y, Zhu N, Sun S, Lei T, Guo X, Leng F, Yang M, Chen J, Wang Y. Degradation of petroleum hydrocarbon contaminants by Rhodococcus erythropolis KB1 synergistic with alfalfa (Medicago sativa L.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:35332-35352. [PMID: 38727971 DOI: 10.1007/s11356-024-33227-8] [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: 12/20/2023] [Accepted: 04/02/2024] [Indexed: 05/30/2024]
Abstract
Petroleum hydrocarbons are a stubborn pollutant that is difficult to degrade globally, and plant-microbial degradation is the main way to solve this type of pollutant. In this study, the physiological and ecological responses of alfalfa to petroleum hydrocarbons in different concentrations of petroleum hydrocarbon-contaminated soil with KB1 (Rhodococcus erythropolis) were analyzed and determined by laboratory potting techniques. The growth of alfalfa (CK) and alfalfa with KB1 (JZ) in different concentrations of petroleum hydrocarbons contaminated soil was compared and analyzed. The results of the CK group showed that petroleum hydrocarbons could significantly affect the activity of alfalfa antioxidant enzyme system, inhibit the development of alfalfa roots and the normal growth of plants, especially in the high-concentration group. KB1 strain had the ability to produce IAA, form biofilm, fix nitrogen, produce betaine and ACC deaminase, and the addition of KB1 could improve the growth traits of alfalfa in the soil contaminated with different concentrations of petroleum hydrocarbons, the content of soluble sugars in roots, and the stress resistance and antioxidant enzyme activities of alfalfa. In addition, the degradation kinetics of the strain showed that the degradation rate of petroleum could reach 75.2% after soaking with KB1. Furthermore, KB1 can efficiently degrade petroleum hydrocarbons in advance and significantly alleviate the damage of high concentration of petroleum hydrocarbons to plant roots. The results showed that KB1 strains and alfalfa plants could effectively enhance the degradation of petroleum hydrocarbons, which provided new ideas for improving bioremediation strategies.
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Affiliation(s)
- Yan Nan
- School of Life Science and Engineering, Lanzhou University of Technology, Langongping Road 287, Qilihe District, Lanzhou, 730050, Gansu Province, China
| | - Ning Zhu
- School of Life Science and Engineering, Lanzhou University of Technology, Langongping Road 287, Qilihe District, Lanzhou, 730050, Gansu Province, China
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Shangchen Sun
- Lanzhou Resources & Environment Voc-Tech University, Lanzhou, 730050, China
| | - Tianzhu Lei
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730050, China
| | - Xiaopeng Guo
- School of Life Science and Engineering, Lanzhou University of Technology, Langongping Road 287, Qilihe District, Lanzhou, 730050, Gansu Province, China
| | - Feifan Leng
- School of Life Science and Engineering, Lanzhou University of Technology, Langongping Road 287, Qilihe District, Lanzhou, 730050, Gansu Province, China
| | - Mingjun Yang
- School of Life Science and Engineering, Lanzhou University of Technology, Langongping Road 287, Qilihe District, Lanzhou, 730050, Gansu Province, China
| | - Jixiang Chen
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Yonggang Wang
- School of Life Science and Engineering, Lanzhou University of Technology, Langongping Road 287, Qilihe District, Lanzhou, 730050, Gansu Province, China.
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Iqbal S, Ummara U, Noreen S, Akhter MS, Jaleel F, Jabeen S, Naz N, Wahid A, Alotaibi MO, Nour MM, Al-Qthanin RN, Aqeel M. Enhancing systematic tolerance in Bermuda grass (Cynodon dactylon L.) through amplified alkB gene expression and bacterial-driven hydrocarbon degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:19871-19885. [PMID: 38368297 DOI: 10.1007/s11356-024-32326-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 01/30/2024] [Indexed: 02/19/2024]
Abstract
This study aimed to access the impact of soil polluted with petroleum (5, 10 g petroleum kg-1 soil) on Bermuda grass (Cynodon dactylon L.) with and without applied bacterial inoculants (Arthrobacter oxydans ITRH49 and Pseudomonas sp. MixRI75). Both soil and seed were given bacterial inoculation. The evaluated morphological parameters of Bermuda grass were fresh and dry weight. The results demonstrated that applied bacterial inoculants enhanced 5.4%, 20%, 28% and 6.4%, 21%, and 29% shoot and root fresh/dry weights in Bermuda grass under controlled environment. The biochemical analysis of shoot and root was affected deleteriously by the 10 g petroleum kg-1 soil pollution. Microbial inoculants enhanced the activities of enzymatic (catalase, peroxidase, glutathione reductase, ascorbate peroxidase, superoxide dismutase) and non-enzymatic (ɑ-tocopherols, proline, reduced glutathione, ascorbic acid) antioxidant to mitigate the toxic effects of ROS (H2O2) under hydrocarbon stressed condition. The maximum hydrocarbon degradation (75%) was recorded by Bermuda grass at 5 g petroleum kg-1 soil contamination. Moreover, bacterial persistence and alkane hydroxylase gene (alkB) abundance and expression were observed more in the root interior than in the rhizosphere and shoot interior of Bermuda grass. Subsequently, the microbe used a biological tool to propose that the application of plant growth-promoting bacteria would be the most favorable choice in petroleum hydrocarbon polluted soil to conquer the abiotic stress in plants and the effective removal of polyaromatic hydrocarbons in polluted soil.
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Affiliation(s)
- Sehrish Iqbal
- Department of Environmental Science, The Women University Multan, Multan, Pakistan
| | - Ume Ummara
- Department of Botany, The Islamia University of Bahawalpur, Rahim Yar Khan Campus, Bahawalpur, Pakistan
| | - Sibgha Noreen
- Institute of Botany, Bahauddin Zakariya University, Multan, Pakistan
| | | | - Farrukh Jaleel
- Department of Chemistry, The Islamia University of Bahawalpur, Rahim Yar Khan Campus, Bahawalpur, Pakistan
| | - Shazia Jabeen
- Department of Environmental Science, The Women University Multan, Multan, Pakistan
| | - Nargis Naz
- Department of Botany, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Abdul Wahid
- Department of Environmental Science, Bahauddin Zakariya University, Multan, Pakistan
| | - Modhi O Alotaibi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia
| | - Mudawi M Nour
- Nurseries Department, Habitat Regeneration and Landscaping, Wildlife and Natural Heritage, Royal Commission for AlUla, Saudi Arabia
| | - Rahmah N Al-Qthanin
- Prince Sultan Bin-Abdul-Aziz Center for Environment and Tourism Studies and Researches, King Khalid University, P.O. Box 960, 61421, Abha, Saudi Arabia
- Biology Department, College of Sciences, King Khalid University, Abha, Saudi Arabia
| | - Muhammad Aqeel
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystem, College of Ecology, Lanzhou University, Lanzhou, 730000, Gansu, China.
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Naqvi SNH, Bibi I, Niazi NK, Tahseen R, Al-Misned F, Shahid M, Naqvi SA, Ashraf W, Shabir G, Iqbal S, Ali F, Afzal M. Exploring the potential of bacterial-augmented floating treatment wetlands for the remediation of detergent-contaminated water. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 26:882-893. [PMID: 37933838 DOI: 10.1080/15226514.2023.2275725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Due to industrialization and urbanization, the use of detergents inadvertently led to contamination of aquatic environments, thus posing potential threat to aquatic organisms and human health. One of the main components of detergents is linear alkylbenzene sulfonate (LAS), which can cause toxic effects on living organisms, particularly aquatic life in the environment. In this study, floating treatment wetlands (FTWs) mesocosms were developed and augmented with LAS-degrading bacteria. The plant species, Brachiaria mutica (Para grass), was vegetated to establish FTWs and bacterial consortium (1:1:1:1) of Pseudomonas aeruginosa strain PJRS20, Bacillus sp. BRRH60, Acinetobacter sp. strain CYRH21, and Burkholderia phytofirmans Ps.JN was augmented (free or immobilized) in these mesocosms. Results revealed that the FTWs removed LAS from the contaminated water and their augmentation with bacteria slightly increased LAS removal during course of the experiment. Maximum reduction in LAS concentration (94%), chemical oxygen demand (91%), biochemical oxygen demand (93%), and total organic carbon (91%) was observed in the contaminated water having FTWs augmented with bacterial consortium immobilized on polystyrene sheet. This study highlights that the FTWs supported with immobilized bacteria on polystyrene sheets can provide an eco-friendly and sustainable solution for the remediation of LAS-bearing water, especially for developing countries like Pakistan.
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Affiliation(s)
- Syed Najaf Hasan Naqvi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, Pakistan
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C PIEAS), Faisalabad, Pakistan
| | - Irshad Bibi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Nabeel Khan Niazi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Razia Tahseen
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C PIEAS), Faisalabad, Pakistan
| | - Fahad Al-Misned
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Muhammad Shahid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Pakistan
| | | | | | - Ghulam Shabir
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C PIEAS), Faisalabad, Pakistan
| | - Samina Iqbal
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C PIEAS), Faisalabad, Pakistan
| | - Fawad Ali
- Centre for Planetary Health and Food Security, Griffith University, Nathan Campus (4111), Brisbane, QLD, Australia
- Queensland Department of Agriculture and Fisheries, Mareeba (4880), QLD, Australia
| | - Muhammad Afzal
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C PIEAS), Faisalabad, Pakistan
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Zheng K, Liu Z, Liu C, Liu J, Zhuang J. Enhancing remediation potential of heavy metal contaminated soils through synergistic application of microbial inoculants and legumes. Front Microbiol 2023; 14:1272591. [PMID: 37840744 PMCID: PMC10571051 DOI: 10.3389/fmicb.2023.1272591] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 09/07/2023] [Indexed: 10/17/2023] Open
Abstract
Soil microorganisms play a crucial role in remediating contaminated soils in modern ecosystems. However, the potential of combining microorganisms with legumes to enhance the remediation of heavy metal-contaminated soils remains unexplored. To investigate this, we isolated and purified a highly efficient cadmium and lead-tolerant strain. Through soil-cultivated pot experiments with two leguminous plants (Robinia pseudoacacia L. and Sophora xanthantha), we studied the effects of applying this microbial agent on plant nutrient uptake of soil nutrients, heavy metal accumulation, and the dynamics of heavy metal content. Additionally, we examined the response characteristics of inter-root microbial and bacterial communities. The results demonstrated that microorganisms screened from heavy metal-contaminated soil environments exhibited strong survival and adaptability in heavy metal solutions. The use of the Serratia marcescens WZ14 strain-phytoremediation significantly increased the soil's ammonium nitrogen (AN) and organic carbon (OC) contents compared to monoculture. In addition, the lead (Pb) and cadmium (Cd) contents of the soil significantly decreased after combined remediation than those of the soil before potting. However, the remediation effects on Pb- and Cd-contaminated soils differed between the two legumes following the Serratia marcescens WZ14 inoculation. The combined restoration altered the composition of the plant inter-rhizosphere bacterial community, with the increase in the relative abundance of both Proteobacteria and Firmicutes. Overall, the combined remediation using the tolerant strain WZ14 with legumes proved advantageous. It effectively reduced the heavy metal content of the soil, minimized the risk of heavy metal migration, and enhanced heavy metal uptake, accumulation, and translocation in the legumes of S. xanthantha and R. pseudoacacia. Additionally, it improved the adaptability and resistance of both legumes, leading to an overall improvement in the soil's environmental quality. These studies can offer primary data and technical support for remediating and treating Cd and Pb in soils, as well as rehabilitating mining sites.
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Affiliation(s)
| | | | | | | | - Jiayao Zhuang
- Collaborative Innovation Center of Sustainable Forestry in Southern China of Jiangsu Province, Nanjing Forestry University, Nanjing, China
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6
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de Souza DM, da Silva JDL, Ludwig LDC, Petersen BC, Brehm FA, Modolo RCE, De Marchi TC, Figueiredo R, Moraes CAM. Study of the phytoremediation potential of native plant species identified in an area contaminated by volatile organic compounds: a systematic review. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 25:1524-1541. [PMID: 36708140 DOI: 10.1080/15226514.2023.2170974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Phytoremediation is a process that uses plants in situ to promote remediation of environments contaminated by organic or inorganic compounds. Phytoremediating species develop methods such as phytoextraction, rhizofiltration, phytodegradation, and phytovolatilization, which can manifest themselves individually or together in a single plant. This study aims to evaluate, through a systematic review, the potential phytoremediation techniques of the genera Syagrus (Mart.), Nephrolepis, Cyperus (L.), Mimosa (L.), Schinus (L.), Brachiaria, and Eryngium (L.) found in a humid area of Rio Grande do Sul, Brazil. The genera that presented significant numbers in the databases consulted were Cyperus and Brachiaria, followed by Nephrolepis. The first two are considered the most promising for phytoremediation processes. The other genera mentioned obtained favorable results for organic contaminants. The studies around these genera are still recent. It is necessary, in research, to highlight which phytoremediation processes the plants exert in relation to the contaminant of the place. In addition, priority should be given to native species that can establish themselves in the environment and that would not unbalance and harm the surrounding biota and ecosystem.
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Affiliation(s)
- Débora M de Souza
- Graduate Program in Civil Engineering - PPGEC, Universidade do Vale do Rio dos Sinos, São Leopoldo (Unisinos), Brazil
| | | | | | - Brunna C Petersen
- Graduate Program in Civil Engineering - PPGEC, Universidade do Vale do Rio dos Sinos, São Leopoldo (Unisinos), Brazil
| | - Feliciane A Brehm
- Graduate Program in Civil Engineering - PPGEC, Universidade do Vale do Rio dos Sinos, São Leopoldo (Unisinos), Brazil
| | - Regina C Espinosa Modolo
- Graduate Program in Civil Engineering - PPGEC, Universidade do Vale do Rio dos Sinos, São Leopoldo (Unisinos), Brazil
- Graduate Program in Mechanical Engineering - PPGEM, Unisinos, São Leopoldo, Brazil
| | | | - Rodrigo Figueiredo
- Environmental Engineer and Work Safety Engineer, NewFields Brazil Environmental Consulting Ltd, Novo Hamburgo, Brazil
| | - Carlos A M Moraes
- Graduate Program in Civil Engineering - PPGEC, Universidade do Vale do Rio dos Sinos, São Leopoldo (Unisinos), Brazil
- Graduate Program in Mechanical Engineering - PPGEM, Unisinos, São Leopoldo, Brazil
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Stanley M, Palace V, Grosshans R, Levin DB. Floating treatment wetlands for the bioremediation of oil spills: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115416. [PMID: 35653839 DOI: 10.1016/j.jenvman.2022.115416] [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: 03/03/2022] [Revised: 04/21/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Conventional oil spill recovery may cause significant damage to shoreline habitats during the removal of oiled material and from human and equipment interaction. In addition, these methods are costly and can leave a significant amount of residual oil in the environment. Biological remediation strategies may be a less invasive option for recovering oil from sensitive regions, with potential to increase recovery. Floating treatment wetlands are a growing area of interest for biodegradation of oil facilitated by plant-bacterial partnerships. Plants are able to stimulate microbial colonization in the rhizosphere, creating greater opportunity for contaminant interaction and degradation. A literature review analysis revealed thirteen articles researching this topic, and found that floating treatment wetlands have high potential to degrade oil contaminants. In some instances, plants and inoculated bacteria exhibited the highest degradation potential, however, plants alone had higher degradation potential than bacteria alone. Research is needed to explore how floating treatment wetlands perform in field-based trials and under variable environmental conditions.
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Affiliation(s)
- Madeline Stanley
- Department of Biosystems Engineering, University of Manitoba, E2-376 EITC, Winnipeg, MB, R3T 5V6, Canada.
| | - Vince Palace
- International Institute for Sustainable Development Experimental Lakes Area, 325-111 Lombard Ave, Winnipeg, MB, R3B 0T4, Canada.
| | - Richard Grosshans
- International Institute for Sustainable Development, 325-111 Lombard Ave, Winnipeg, MB, R3B 0T4, Canada.
| | - David B Levin
- Department of Biosystems Engineering, University of Manitoba, E2-376 EITC, Winnipeg, MB, R3T 5V6, Canada.
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Alami NH, Hamzah A, Tangahu BV, Warmadewanti I, Bachtiar Krishna Putra A, Purnomo AS, Danilyan E, Putri HM, Aqila CN, Dewi AAN, Pratiwi A, Putri SK, Luqman A. Microbiome profile of soil and rhizosphere plants growing in traditional oil mining land in Wonocolo, Bojonegoro, Indonesia. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:697-705. [PMID: 35867913 DOI: 10.1080/15226514.2022.2103094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Traditional oil mining poses negative effects on the environment through pollution with crude oil. One of the traditional mining sites in Wonocolo, Bojonegoro, Indonesia was reported to contaminate the surrounding area with a high level of crude oil. Therefore, this study aims to examine the microbiome profiles of contaminated soil and the rhizosphere of naturalized plants growing at the sites. It was conducted in Wonocolo, Bojonegoro to obtain an insight into the possible remediation efforts of using indigenous hydrocarbon-degrading bacteria and naturalized plants as in situ remediation agents. The results showed that the soil located close to the oil well-contained a high level of crude oil at 24.8%, and exhibited a distinct microbiome profile compared to those located further which had lower crude oil contamination of 14.15, 10.89, and 4.9%. Soil with the highest level of crude oil contamination had a comparatively higher relative abundance of assA, an anaerobic alkene-degrading gene. Meanwhile, the rhizosphere of the two naturalized plants, Muntingia calabura, and Pennisetum purpureum, exhibited indifferent microbiome profiles compared to the soil. They were found to contain less abundant hydrocarbon-degrading genes, such as C230, PAH-RHD-GP, nahAc, assA, and alkB suggesting that these naturalized plants might not be a suitable tool for in-situ remediation.
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Affiliation(s)
- Nur Hidayatul Alami
- Biology Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Afan Hamzah
- Industrial Chemical Engineering Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Bieby Voijant Tangahu
- Environmental Engineering Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Idaa Warmadewanti
- Environmental Engineering Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | | | - Adi Setyo Purnomo
- Chemistry Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Edo Danilyan
- Biology Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Hellen Melati Putri
- Biology Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Citra Nesa Aqila
- Biology Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Aulia An Nisaa Dewi
- Biology Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Ayudia Pratiwi
- Biology Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | | | - Arif Luqman
- Biology Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
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Morales-Guzmán G, Ferrera-Cerrato R, Rivera-Cruz MDC, Torres-Bustillos LG, Mendoza-López MR, Esquivel-Cote R, Alarcón A. Phytoremediation of soil contaminated with weathered petroleum hydrocarbons by applying mineral fertilization, an anionic surfactant, or hydrocarbonoclastic bacteria. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:329-338. [PMID: 35704711 DOI: 10.1080/15226514.2022.2083577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This study evaluated the effect of the application of mineral fertilization (F), the anionic surfactant Triton X-100 (TX100), or the inoculation with a hydrocarbooclastic bacterial consortium (BCons) on the growth of Clitoria ternatea during the phytoremediation of a Gleysol contaminated with weathered petroleum hydrocarbons (39,000 mg kg-1 WPH) collected from La Venta, Tabasco (Mexico). The experiment consisted of a completely randomized design with seven treatments and four replications each under greenhouse conditions. The application of F (biostimulation) increased plant growth and biomass production; in contrast, TX100 only favored root biomass (11%) but significantly favored WPH degradation. Bioaugmentation with BCons did not show significant effects on plant growth. Nevertheless, the combination of biostimulation with bioaugmentation (BCons + F, BCons + TX100, and BCons + F+TX100) enhanced plant growth, hydrocarbonoclastic bacteria population, and WPH degradation when compared to treatments with the single application of bioaugmentation (BCons) or biostimulation (F).
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Affiliation(s)
- Gilberto Morales-Guzmán
- Posgrado de Edafología, Colegio de Postgraduados, Montecillo, Texcoco, Estado de México, Mexico
| | - Ronald Ferrera-Cerrato
- Posgrado de Edafología, Colegio de Postgraduados, Montecillo, Texcoco, Estado de México, Mexico
| | - María Del Carmen Rivera-Cruz
- Posgrado en Producción Agroalimentaria en el Trópico, Colegio de Postgraduados, Periférico Carlos A, Cárdenas, Tabasco, Mexico
| | - Luis Gilberto Torres-Bustillos
- Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional (UPIBI-IPN), Ciudad de Mexico, Mexico
| | - Ma Remedios Mendoza-López
- Unidad de Servicios de Apoyo en Resolución Analítica. Universidad Veracruzana, Dr. Luis Castelazo Ayala S/N, Col. Industrial-Animas, Xalapa, Veracruz, Mexico
| | - Rosalba Esquivel-Cote
- Posgrado de Edafología, Colegio de Postgraduados, Montecillo, Texcoco, Estado de México, Mexico
| | - Alejandro Alarcón
- Posgrado de Edafología, Colegio de Postgraduados, Montecillo, Texcoco, Estado de México, Mexico
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da Silva Correa H, Blum CT, Galvão F, Maranho LT. Effects of oil contamination on plant growth and development: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:43501-43515. [PMID: 35386087 DOI: 10.1007/s11356-022-19939-9] [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: 04/12/2021] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
Oil spills generate several environmental impacts and have become more common with the increase in petroleum extraction, refining, transportation, and trade. In soil, oil contamination increases water and nutrient availability and compaction, directly affecting plant growth and development. Different aspects of phytotoxicity can be observed and will vary according to the characteristics of soil and plants. Oil-contaminated soil also results in negative effects on biomass and changes in leaves and roots. Investigating the effects of oil contamination on plant growth and development can aid in the conservation of plant species and in the development of techniques such as bioremediation and biomonitoring. Thus, this review aims to discuss the main effects of oil contamination on plants, such as environmental stress and morphological, physiological, and anatomical changes, and the strategies developed by plants to survive contamination, as well as to identify plants with phytoremediation potential that can assist in removing oil from the environment.
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Affiliation(s)
- Hauane da Silva Correa
- Department of Forest Science, Federal University of Paraná, Av. Prof. Lothário Meissner, 632, Curitiba, PR, CEP, 80210-170, Brazil
| | - Christopher Thomas Blum
- Department of Forest Science, Federal University of Paraná, Av. Prof. Lothário Meissner, 632, Curitiba, PR, CEP, 80210-170, Brazil
| | - Franklin Galvão
- Department of Forest Science, Federal University of Paraná, Av. Prof. Lothário Meissner, 632, Curitiba, PR, CEP, 80210-170, Brazil
| | - Leila Teresinha Maranho
- Department of Forest Science, Federal University of Paraná, Av. Prof. Lothário Meissner, 632, Curitiba, PR, CEP, 80210-170, Brazil.
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Xu L, Huang XX, Wang HT, Tang SK, Shen B, Sun JQ. Description and characterization of three endophytic Bacillaceae from the halophyte Suaeda salsa: Paenalkalicoccus suaedae gen. nov., sp. nov. , Cytobacillus suaedae sp. nov. , and Bacillus suaedae sp. nov. Int J Syst Evol Microbiol 2022; 72. [PMID: 35550242 DOI: 10.1099/ijsem.0.005337] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Three strains of members of the family Bacillaceae, which can inhibit the growth of some Gram-stain-positive strains, designated M4U3P1T, HD4P25T and RD4P76T, were isolated from Suaeda salsa halophytes in Baotou, Inner Mongolia, PR China. A phylogenetic analysis based on the 16S rRNA gene and the whole genome sequences revealed that HD4P25T clustered with Cytobacillus luteolus YIM 93174T with a similarity of 98.4 %, and RD4P76T shared the highest similarity of 16S rRNA gene with Bacillus mesophilus SA4T (97.5 %). M4U3P1T clustered with strains of genera Salipaludibacillus and Alkalicoccus based on whole-genome sequence analyses, but its 16S rRNA gene had the highest similarity to 'Evansella tamaricis' EGI 80668 (96.1 %). The average nucleotide's identity by blast (ANIb) and digital DNA-DNA hybridization (dDDH) values of the three isolated strains to their close relatives were well below the threshold value for identifying a novel species.On the basis of the phylogenetic, physiological and phenotypic results, Paenalkalicoccus suaedae gen. nov., sp. nov. [type strain M4U3P1T (=CGMCC 1.17076T=JCM 33851T)], Cytobacillus suaedae sp. nov. [type strain HD4P25T (=CGMCC 1.18651T =JCM 34524T)], and Bacillus suaedae sp. nov. [type strain RD4P76T (=CGMCC 1.18659T=JCM 34525T)] were proposed, respectively. All three species are ubiquitous in the bulk saline-alkaline soils, but only the species represented by strain RD4P76T was widely distributed in the rhizosphere soil, the above-ground part and the roots of S. salsa. The species represented by M4U3P1T can be detected in the roots of S. salsa, and rarely detected in the above-ground parts of S. salsa. The species represented by HD4P25T was rarely detected in the interior of S. salsa. The three strains could inhibit some of the Gram-stain-positive bacteria (i.e. members of the genera Planococcus, Zhihengliuella and Sanguibacter) in the saline-alkali soil. A genomic analysis of these three strains revealed that they can synthesize different antagonistic compounds, such as aminobenzoate and bacitracin or subtilisin.
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Affiliation(s)
- Lian Xu
- Laboratory for Microbial Resources, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, PR China.,Jiangsu Key Laboratory for Organic Solid Waste Utilization, Educational Ministry Engineering Center of Resource-saving Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Xiao-Xian Huang
- Laboratory for Microbial Resources, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, PR China
| | - Hai-Tao Wang
- Laboratory for Microbial Resources, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, PR China
| | - Shu-Kun Tang
- Yunnan Institute of Microbiology, Key Laboratory for Conservation and Utilization of Bio-Resource, and Key Laboratory for Microbial Resources of the Ministry of Education, School of Life Sciences, Yunnan University, Kunming, 650091, PR China
| | - Biao Shen
- Jiangsu Key Laboratory for Organic Solid Waste Utilization, Educational Ministry Engineering Center of Resource-saving Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Ji-Quan Sun
- Laboratory for Microbial Resources, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, PR China
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Khan AL, Numan M, Bilal S, Asaf S, Crafword K, Imran M, Al-Harrasi A, Al-Sabahi JN, Rehman NU, A-Rawahi A, Lee IJ. Mangrove's rhizospheric engineering with bacterial inoculation improve degradation of diesel contamination. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127046. [PMID: 34481398 DOI: 10.1016/j.jhazmat.2021.127046] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Mangroves (Avicennia marina) growing in intertidal areas are often exposed to diesel spills, adversely damaging the ecosystem. Herein, we showed for the first time that mangrove seedlings' associations with bacteria could reprogram host-growth, physiology, and ability to degrade diesel. We found four bacterial strains [Sphingomonas sp.-LK11, Rhodococcus corynebacterioides-NZ1, Bacillus subtilis-EP1 Bacillus safensis-SH10] exhibiting significant growth during diesel degradation (2% and 5%, v/v) and higher expression of alkane monooxygenase compared to control. This is in synergy with reduced long-chain n-alkanes (C24-C30) during microbe-diesel interactions in the bioreactor. Among individual strains, SH10 exhibited significantly higher potential to improve mangrove seedling's morphology, anatomy and growth during diesel treatment in rhizosphere compared to control. This was also evidenced by reduced activities and gene expression of antioxidant enzymes (catalases, peroxidases, ascorbic peroxidases, superoxide dismutases and polyphenol peroxidases) and lipid peroxidation during microbe-diesel interactions. Interestingly, we noticed significantly higher soil-enzyme activities (phosphatases and glucosidases) and essential metabolites in seedling's rhizosphere after bacteria and diesel treatments. Degradation of longer n-alkane chains in the rhizosphere also revealed a potential pathway that benefits mangroves by bacterial strains during diesel contaminations. Current results support microbes' application to rhizoengineer plant growth, responses, and phytoextraction abilities in environments contaminated with diesel spills. AVAILABILITY OF DATA AND MATERIALS: The datasets generated during the current study are available in the NCBI GenBank ((https://www.ncbi.nlm.nih.gov).
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Affiliation(s)
- Abdul Latif Khan
- Natural & Medical Sciences Research Center, University of Nizwa, 616, Oman; Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA.
| | - Muhammad Numan
- Department of Biology, University of North Carolina at Greensboro, NC 27412, USA
| | - Saqib Bilal
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA
| | - Sajjad Asaf
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA
| | - Kerri Crafword
- Department of Biology and Biochemistry, College of Natural Science and Mathematics, University of Houston, TX, USA
| | - Muhammad Imran
- School of Applied Biosciences, Kyungpook National University, Daegu Korea, South Korea
| | - Ahmed Al-Harrasi
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA.
| | - Jamal Nasser Al-Sabahi
- Central Instrument Laboratory, College of Agriculture and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Najeeb Ur Rehman
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA
| | - Ahmed A-Rawahi
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA
| | - In-Jung Lee
- School of Applied Biosciences, Kyungpook National University, Daegu Korea, South Korea.
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Hashmat AJ, Afzal M, Arias CA, Ramirez-Vargas CA, Brix H. Enhanced degradation of hydrocarbons in constructed wetlands aided with nutrients, surfactant, and aeration. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 24:1163-1172. [PMID: 34958292 DOI: 10.1080/15226514.2021.2021140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The use of constructed wetlands (CWs) is a promising approach for the remediation of hydrocarbon-polluted wastewater. The amendments of CWs with nutrients, surfactants, and aeration enhances the removal of pollutants from wastewater. The objective of the present study was to explore the effect of external stimulants, i.e., nutrients, surfactant, and aeration on hydrocarbons degradation potential of CWs. The CWs mesocosms were developed by the vegetation of Phragmites australis and amendments with nutrients (20 mg l-1 N, 2.6 mg l-1 P, and 16.4 mg l-1 K), surfactant Tween 20 (0.2%, v/v), and aeration (7 mg l-1) for the remediation of diesel-spiked water (2%, w/v). The comparative analysis showed that the addition of nutrients, surfactant, and aeration individually enhanced total petroleum hydrocarbons (TPHs) reduction, and maximum TPHs reduction (88.4%) was achieved after 60 days in the mesocosms amended with the combination of nutrients, surfactant, and aeration. Among different individual treatments, the aeration (alone) also played a pivotal role in TPHs reduction (61%). The least (12%) reduction in TPHs was achieved in the mesocosms supplied with surfactant only. This study revealed that the combined application of nutrients, surfactant, and aeration in CWs enhanced its hydrocarbons degradation performance.
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Affiliation(s)
- Amer Jamal Hashmat
- National Institute for Biotechnology and Genetic Engineering, College Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Punjab, Pakistan
- Centre for Water Technology (WATEC), Aarhus University, Aarhus C, Denmark
| | - Muhammad Afzal
- National Institute for Biotechnology and Genetic Engineering, College Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Punjab, Pakistan
| | | | | | - Hans Brix
- Centre for Water Technology (WATEC), Aarhus University, Aarhus C, Denmark
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Bioaugmentation-Enhanced Remediation of Crude Oil Polluted Water in Pilot-Scale Floating Treatment Wetlands. WATER 2021. [DOI: 10.3390/w13202882] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Floating treatment wetlands (FTWs) are cost-effective systems for the remediation of polluted water. In FTWs, the metabolic activity of microorganisms associated with plants is fundamental to treatment efficiency. Bioaugmentation, the addition of microorganisms with pollutant-degrading capabilities, appears to be a promising means to enhance the treatment efficiency of FTWs. Here, we quantified the effect of bioaugmentation with a four-membered bacterial consortium on the remediation of water contaminated with crude oil in pilot-scale FTWs planted with Phragmites australis or Typha domingensis. The bacteria had been isolated from the endosphere and rhizosphere of various plants and carry the alkane hydroxylase gene, alkB, involved in aerobic hydrocarbon degradation. During a treatment period of 36 days, FTWs planted with P. australis achieved a reduction in hydrocarbon concentration from 300 mg/L to 16 mg/L with and 56 mg/L without bioaugmentation. In the FTWs planted with T. domingensis, respective hydrocarbon concentrations were 46 mg/L and 84 mg/L. The inoculated bacteria proliferated in the rhizoplane and in the plant interior. Copy numbers of the alkB gene and its mRNA increased over time in plant-associated samples, suggesting increased bacterial hydrocarbon degradation. The results show that bioaugmentation improved the treatment of oil-contaminated water in FTWs by at least a factor of two, indicating that the performance of full-scale systems can be improved at only small costs.
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Rehman R, Ali MI, Ali N, Badshah M, Iqbal M, Jamal A, Huang Z. Crude oil biodegradation potential of biosurfactant-producing Pseudomonas aeruginosa and Meyerozyma sp. JOURNAL OF HAZARDOUS MATERIALS 2021; 418:126276. [PMID: 34119978 DOI: 10.1016/j.jhazmat.2021.126276] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/29/2021] [Accepted: 05/29/2021] [Indexed: 06/12/2023]
Abstract
This study investigates the potential of crude oil degrading capabilities of biosurfactant-producing strains of Pseudomonas aeruginosa MF069166 and Meyerozyma sp. MF138126. P. aeruginosa produced mono-/di-rhamnolipids congeners whereas, Meyerozyma sp. produced acidic and lactonic forms of sophorolipids with crude oil. The values of critical micelle concentrations of rhamnolipids and sophorolipids were 40 mg/L and 50 mg/L with reductions in surface tension of water to 29 mN/m and 33 mN/m. Dynamic light scattering revealed that the average diameter of micellar aggregates of rhamnolipids ranged between 300 and 350 nm and the average size of sophorolipids micelles was 309 nm and 380 nm. Biosurfactants from P. aeruginosa and Meyerozyma sp. exhibited emulsification activities of 87% and 84% in crude oil. Cell surface hydrophobicity of both strains was higher in the presence of hydrophobic contaminants. The biosurfactants showed stability under varying pH, NaCl concentrations and temperatures. Gravimetric and GC-MS analyses demonstrated that P. aeruginosa degraded 91% of the petroleum hydrocarbons while Meyerozyma sp. showed 87% biodegradation efficiency. P. aeruginosa and Meyerozyma sp. have also been found to degrade halogen-containing compounds and showed excellent crude oil degradation efficiency. It is concluded that both strains have high potential of applications in the bioremediation of hydrocarbons-contaminated sites.
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Affiliation(s)
- Ramla Rehman
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Muhammad Ishtiaq Ali
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Naeem Ali
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Malik Badshah
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Mazhar Iqbal
- Department of Environmental Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Asif Jamal
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Zaixing Huang
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, Jiangsu, China; Department of Civil & Architectural Engineering, University of Wyoming, Laramie, WY 82071, USA.
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Ummara U, Noreen S, Afzal M, Ahmad P. Bacterial bioaugmentation enhances hydrocarbon degradation, plant colonization and gene expression in diesel-contaminated soil. PHYSIOLOGIA PLANTARUM 2021; 173:58-66. [PMID: 32691441 DOI: 10.1111/ppl.13171] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 06/23/2020] [Accepted: 07/10/2020] [Indexed: 05/27/2023]
Abstract
Environmental contamination by hydrocarbons is a major problem, and hydrocarbon accumulation in soil poses hazardous threat to ecosystems. Phytoremediation, which involves plants, is an encouraging technique for the removal of hydrocarbons from polluted soil and water. The purpose of this investigation was to examine whether bacterial inoculation enhanced the phytoremediation of hydrocarbons in diesel-contaminated soil vegetated with maize (Zea mays L.). The two cultivars of maize, MMRI Yellow and Pearl White, were planted in diesel-polluted soil (0, 1.5, 2.5, and 3.5 g diesel kg-1 soil), and inoculated with the consortium of three alkane-degrading bacterial strains, Arthrobacter oxydans ITRH49, Pseudomonas sp. ITRI73 and Pseudomonas sp. MixRI75. Bacterial inoculation enhanced plant growth and hydrocarbon degradation. Between two cultivars, MMRI Yellow showed better growth and hydrocarbon degradation in the presence and absence of bacterial inoculation. Maximum hydrocarbon degradation (80%) was observed in the soil having minimum concentration of diesel (1.5 g kg-1 soil), and vegetated with bacterial inoculated MMRI Yellow maize cultivar. Furthermore, more bacterial colonization, and abundance and expression of the alkane hydroxylase gene (alkB) were observed in the root interior than in the rhizosphere and shoot interior of the plants. The bacteria-mediated phytoremediation of soil contaminated with hydrocarbons suggested that the collective use of plants and bacteria was the most beneficial approach for the reclamation of diesel-contaminated soil in comparison with vegetation alone.
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Affiliation(s)
- Ume Ummara
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan
| | - Sibgha Noreen
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Afzal
- National Institute of Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Parvaiz Ahmad
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
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Zhang X, Wang L, Zhou W, Feng L, Hu M, Hu J, Liu Z. Mixing of plant litters strengthens their remediation effects on crude oil-contaminated soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:12753-12765. [PMID: 33094455 DOI: 10.1007/s11356-020-11299-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/18/2020] [Indexed: 06/11/2023]
Abstract
To investigate the effects of the mixing of litters on their remediation efficiency in petroleum-contaminated soil, litters from two common plants in the petroleum-contaminated region of Northern Shaanxi, China, Bothriochloa ischaemum (L.) Keng and Sophora davidii Kom. ex Pavol., and their mixture were mixed with 45 g/kg petroleum-contaminated soil. Based on these, a 150-day simulated remediation experiment was conducted at 25 °C and consistent moisture conditions. The effects on the degradation of petroleum components and the restoration of nutrient contents, pH, and enzymatic activity in the disturbed soil were detected. The effects of the litter treatments on the community structure and carbon source utilization characteristics of soil microorganisms were also studied. The results indicated that all litter treatments significantly accelerated the degradation of petroleum components, while the mixing of litter exhibited significant synergistic effects, leading to significantly higher degradation rates of saturated hydrocarbons, aromatic hydrocarbons, and nonhydrocarbon substances than the observed rates in the single-litter treatments and the predicted rates based on the single-litter treatments. Litter treatment significantly increased the N and P contents and enzymatic activity of contaminated soil. The effects of mixed litter on soil chemical and biological properties fell between the effects of the 2 types of single-litter treatments. However, the mixing of litters exhibited significant synergistic effects in supplementing available P and increasing sucrase, dehydrogenase, lignin peroxidase, and laccase activity, while it exhibited significant antagonistic effects in supplementing nitrate nitrogen and increasing urease, phosphatase, polyphenol oxidase, and manganese peroxidase activity. Litter treatment significantly altered the community structure of soil microorganisms. The relative abundances of some petroleum-degrading microbial phyla or genera in mixed litter-treated soil were significantly different from those in single litter-treated soils, which might contribute to the strengthened remediation effects of mixed litter treatment. The results might provide a theoretical basis for the more effect utilization of biomass resources in the remediation of petroleum-contaminated soil.
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Affiliation(s)
- Xiaoxi Zhang
- College of Life Sciences, Yan'an University, Yan'an, 716000, China.
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Lijie Wang
- College of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - Wenxing Zhou
- College of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - Liaoliao Feng
- College of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - Man Hu
- College of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - Jiawei Hu
- College of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - Zengwen Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
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Novakovskiy AB, Kanev VA, Markarova MY. Long-term dynamics of plant communities after biological remediation of oil-contaminated soils in far north. Sci Rep 2021; 11:4888. [PMID: 33649460 PMCID: PMC7921116 DOI: 10.1038/s41598-021-84226-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 02/15/2021] [Indexed: 12/13/2022] Open
Abstract
We studied the long-term dynamics of plant communities after bio and phytoremediation of oil-polluted soils. Nine plots located in European Northeast and treated using various bioremediation methods were monitored from 2002 to 2014. Geobotanical descriptions (relevés) of each plot were performed in 2006 and 2014, and Grime’s theoretical CSR (competition–stress–ruderality) framework was used to assess the vegetation state and dynamics. We observed a clear shift of communities from pioneer (where ruderal species were prevalent) to stable (where competitor species were dominant) states. However, the remediation type did not significantly impact the vegetation recovery rate. After 12 years, all methods led to a 55–90% decrease in the oil content of the soil and a recovery of the vegetation cover. The plant communities contained mainly cereals and sedges which significantly differed from the original tundra communities before the oil spill. The control plot, treated only by mechanical cleaning, had minimum oil degradation rate (50%) and vegetation recovery rates, although, in CSR terms, its vegetation assemblage resembled the background community. Cereals (Agrostis gigantea, Deschampsia cespitosa, Phalaris arundinacea, and Poa pratensis), sedges (Carex canescens, Carex limosa, and Eriophorum vaginatum), and shrubs (Salix) were found to be the most effective species for phytoremediation, exhibiting high community productivity under the harsh northern conditions.
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Affiliation(s)
- A B Novakovskiy
- Institute of Biology Komi SC UB RAS, Kommunisticheskaya st., 28, Syktyvkar, Russia.
| | - V A Kanev
- Institute of Biology Komi SC UB RAS, Kommunisticheskaya st., 28, Syktyvkar, Russia
| | - M Y Markarova
- Institute of Biology Komi SC UB RAS, Kommunisticheskaya st., 28, Syktyvkar, Russia.,Federal Scientific Vegetable Center, Selektsionnaya st. 14, Odintsovo District, Moscow Region, Russia
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Gupta S, Kaur G, Nirwan J. Role of Endophytes in Plant-Associated Remediation and Plant Growth Promotion: A Deep Insight. Fungal Biol 2021. [DOI: 10.1007/978-3-030-54422-5_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Fei JJ, Wan YY, He XY, Zhang ZH, Ying YX. Unitary and binary remediations by plant and microorganism on refining oil-contaminated soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:41253-41264. [PMID: 32677018 DOI: 10.1007/s11356-020-10025-6] [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: 10/10/2019] [Accepted: 07/06/2020] [Indexed: 06/11/2023]
Abstract
Refining oil contaminants are complex and cause serious harm to the environment. Remediation of refining oil-contaminated soil is challenging but has significant impact in China. Two plant species Agropyron fragile (Roth) P. Candargy and Avena sativa L. and one bacterium Bacillus tequilensis ZJ01 were used to investigate their efficiency in remediating the refining oil-polluted soil sampled from an oil field in northern China. The simulated experiments of remediations by A. fragile or A. sativa alone and A. fragile or A. sativa combined with B. tequilensis ZJ01 for 39 days and by B. tequilensis ZJ01 alone for 7 days were performed in the laboratory, with B. tequilensis ZJ01 added before or after the germination of seeds. Seed germination rates and morphological characteristics of the plants, along with the varieties of oil hydrocarbons in the soil, were recorded to reflect the remediation efficiency. The results showed that the contamination was weakened in all experimental groups. A. sativa was more sensitive to the pollutants than A. fragile, and A. fragile was much more resistant to the oil hydrocarbons, especially to aromatic hydrocarbons. Adding B. tequilensis ZJ01 before the germination of seeds could restrain the plant growth while adding after the germination of A. fragile seeds notably improved the remediation efficiency. The degradation rate of oil hydrocarbons by B. tequilensis ZJ01 alone was also considerable. Together, our results suggest that the unitary remediation by B. tequilensis ZJ01 and the binary remediation by A. fragile combined with B. tequilensis ZJ01 added after the germination of seeds are recommended for future in situ remediations.
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Affiliation(s)
- Jia Jia Fei
- State Key Laboratory of Petroleum Resources and Prospecting, Research Centre for Geomicrobial Resources and Application, Institute of Unconventional Oil and Gas Science and Technology, College of Geosciences, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Yun Yang Wan
- State Key Laboratory of Petroleum Resources and Prospecting, Research Centre for Geomicrobial Resources and Application, Institute of Unconventional Oil and Gas Science and Technology, College of Geosciences, China University of Petroleum-Beijing, Beijing, 102249, China.
| | - Xin Yue He
- State Key Laboratory of Petroleum Resources and Prospecting, Research Centre for Geomicrobial Resources and Application, Institute of Unconventional Oil and Gas Science and Technology, College of Geosciences, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Zhi Huan Zhang
- State Key Laboratory of Petroleum Resources and Prospecting, Research Centre for Geomicrobial Resources and Application, Institute of Unconventional Oil and Gas Science and Technology, College of Geosciences, China University of Petroleum-Beijing, Beijing, 102249, China.
| | - Yu Xi Ying
- State Key Laboratory of Petroleum Resources and Prospecting, Research Centre for Geomicrobial Resources and Application, Institute of Unconventional Oil and Gas Science and Technology, College of Geosciences, China University of Petroleum-Beijing, Beijing, 102249, China
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Bukhat S, Imran A, Javaid S, Shahid M, Majeed A, Naqqash T. Communication of plants with microbial world: Exploring the regulatory networks for PGPR mediated defense signaling. Microbiol Res 2020; 238:126486. [PMID: 32464574 DOI: 10.1016/j.micres.2020.126486] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/20/2020] [Accepted: 03/28/2020] [Indexed: 02/01/2023]
Abstract
Agricultural manipulation of potentially beneficial rhizosphere microbes is increasing rapidly due to their multi-functional plant-protective and growth related benefits. Plant growth promoting rhizobacteria (PGPR) are mostly non-pathogenic microbes which exert direct benefits on plants while there are rhizosphere bacteria which indirectly help plant by ameliorating the biotic and/or abiotic stress or induction of defense response in plant. Regulation of these direct or indirect effect takes place via highly specialized communication system induced at multiple levels of interaction i.e., inter-species, intra-species, and inter-kingdom. Studies have provided insights into the functioning of signaling molecules involved in communication and induction of defense responses. Activation of host immune responses upon bacterial infection or rhizobacteria perception requires comprehensive and precise gene expression reprogramming and communication between hosts and microbes. Majority of studies have focused on signaling of host pattern recognition receptors (PRR) and nod-like receptor (NLR) and microbial effector proteins under mining the role of other components such as mitogen activated protein kinase (MAPK), microRNA, histone deacytylases. The later ones are important regulators of gene expression reprogramming in plant immune responses, pathogen virulence and communications in plant-microbe interactions. During the past decade, inoculation of PGPR has emerged as potential strategy to induce biotic and abiotic stress tolerance in plants; hence, it is imperative to expose the basis of these interactions. This review discusses microbes and plants derived signaling molecules for their communication, regulatory and signaling networks of PGPR and their different products that are involved in inducing resistance and tolerance in plants against environmental stresses and the effect of defense signaling on root microbiome. We expect that it will lead to the development and exploitation of beneficial microbes as source of crop biofertilizers in climate changing scenario enabling more sustainable agriculture.
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Affiliation(s)
- Sherien Bukhat
- Institute of Molecular Biology and Biotechnology, Bahauddin Zakariya University, 60800 Multan, Pakistan.
| | - Asma Imran
- National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan.
| | - Shaista Javaid
- Institute of Molecular Biology and Biotechnology, University of Lahore Main Campus, Defense road, Lahore, Pakistan.
| | - Muhammad Shahid
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad 38000, Pakistan.
| | - Afshan Majeed
- Department of Soil and Environmental Sciences, The University of Poonch, Rawalakot, Azad Jammu and Kashmir, Pakistan.
| | - Tahir Naqqash
- Institute of Molecular Biology and Biotechnology, Bahauddin Zakariya University, 60800 Multan, Pakistan.
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22
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Baoune H, Aparicio JD, Acuña A, El Hadj-Khelil AO, Sanchez L, Polti MA, Alvarez A. Effectiveness of the Zea mays-Streptomyces association for the phytoremediation of petroleum hydrocarbons impacted soils. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 184:109591. [PMID: 31514081 DOI: 10.1016/j.ecoenv.2019.109591] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/15/2019] [Accepted: 08/19/2019] [Indexed: 06/10/2023]
Abstract
Restoring polluted sites by petroleum hydrocarbons is a challenge because of their complexity and persistence in the environment. The main objective of the present study was to investigate the performance of plant-actinobacteria system for the remediation of crude petroleum and pure-polycyclic aromatic hydrocarbons (PAHs) contaminated soils. The endophytic strain Streptomyces sp. Hlh1 was tested for its ability to degrade model PAHs (phenanthrene, pyrene and anthracene) in liquid minimal medium. Streptomyces sp. Hlh1 demonstrated the ability to grow on PAHs as sole carbon and energy source, reaching hydrocarbons removal of 63%, 93% and 83% for phenanthrene, pyrene and anthracene, respectively. Maize plant was chosen to study the impact of Streptomyces sp. Hlh1 inoculation on the dissipation of contaminants and plant growth. Thus, maize seedlings grown in soils contaminated with crude petroleum and pure-PAHs were inoculated with Streptomyces sp. Hlh1. Results showed that the endophyte inoculation increased contaminants removal. Maximum hydrocarbons removal (70%) was achieved in inoculated and planted soil contaminated with crude oil, while 61%, 59%, and 46% of hydrocarbons dissipation were registered for phenanthrene, pyrene and anthracene, respectively. These degradations rates were significantly higher compared to non-inoculated systems in all the treatments evaluated. Further, it was revealed that hydrocarbons (C8-C30) were efficiently degraded in plant-Streptomyces Hlh1 system. Moreover, the inoculation with the actinobacteria resulted significant plant development and enhanced photosynthetic pigments compared to plants grown in the other experimental conditions. The present study provide evidence that the inoculation of maize plants with Streptomyces sp. Hlh1 play a remarkable role in the removal of petroleum hydrocarbons, enhancing plant development in contaminated soils.
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Affiliation(s)
- Hafida Baoune
- Laboratoire de Protection des écosystème en Zones Arides et Semi-arides, FNSV, Université Kasdi Merbah Ouragla, 30000, Algeria; Planta Piloto de Procesos Industriales Microbiológicos (PROIMI), CONICET. Av. Belgrano y Pasaje Casero., 4000, Tucumán, Argentina.
| | - Juan Daniel Aparicio
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI), CONICET. Av. Belgrano y Pasaje Casero., 4000, Tucumán, Argentina.
| | - Adrian Acuña
- Universidad Tecnológica Nacional, Av. de Los Inmigrantes 555, 9400, Santa Cruz, Argentina.
| | - Aminata Ould El Hadj-Khelil
- Laboratoire de Protection des écosystème en Zones Arides et Semi-arides, FNSV, Université Kasdi Merbah Ouragla, 30000, Algeria.
| | - Leandro Sanchez
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI), CONICET. Av. Belgrano y Pasaje Casero., 4000, Tucumán, Argentina.
| | - Marta Alejandra Polti
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI), CONICET. Av. Belgrano y Pasaje Casero., 4000, Tucumán, Argentina; Facultad de Ciencias Naturales e Instituto Miguel Lillo, Universidad Nacional de Tucumán (UNT), Miguel Lillo 205, 4000, Tucumán, Argentina.
| | - Analia Alvarez
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI), CONICET. Av. Belgrano y Pasaje Casero., 4000, Tucumán, Argentina; Facultad de Ciencias Naturales e Instituto Miguel Lillo, Universidad Nacional de Tucumán (UNT), Miguel Lillo 205, 4000, Tucumán, Argentina.
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Ahsan MT, Tahseen R, Ashraf A, Mahmood A, Najam-ul-haq M, Arslan M, Afzal M. Effective plant-endophyte interplay can improve the cadmium hyperaccumulation in Brachiaria mutica. World J Microbiol Biotechnol 2019; 35:188. [DOI: 10.1007/s11274-019-2757-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 11/02/2019] [Indexed: 01/11/2023]
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24
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Khoshkholgh Sima NA, Ebadi A, Reiahisamani N, Rasekh B. Bio-based remediation of petroleum-contaminated saline soils: Challenges, the current state-of-the-art and future prospects. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 250:109476. [PMID: 31476519 DOI: 10.1016/j.jenvman.2019.109476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/17/2019] [Accepted: 08/25/2019] [Indexed: 06/10/2023]
Abstract
Exploiting synergism between plants and microbes offers a potential means of remediating soils contaminated with petroleum hydrocarbons (PHCs). Salinity alters the physicochemical characteristics of soils and suppresses the growth of both plants and soil microbes, so the bioremediation of saline soils requires the use of plants and in microbes which can tolerate salinity. This review focuses on the management of PHC-contaminated saline soils, surveying what is currently known with respect to the potential of halophytes (plants adapted to saline environments) acting in concert with synergistic microbes to degrade PHCs. The priority is to identify optimal combinations of halophyte(s) and the bacteria present as endophytes and/or associated with the rhizosphere, and to determine what are the factors which most strongly affect their viability.
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Affiliation(s)
- Nayer Azam Khoshkholgh Sima
- Agricultural Biotechnology Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Ali Ebadi
- Agricultural Biotechnology Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Narges Reiahisamani
- Agricultural Biotechnology Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Behnam Rasekh
- Microbiology and Biotechnology Research Group, Research Institute of Petroleum Industry, Tehran, Iran.
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25
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He W, Megharaj M, Wu CY, Subashchandrabose SR, Dai CC. Endophyte-assisted phytoremediation: mechanisms and current application strategies for soil mixed pollutants. Crit Rev Biotechnol 2019; 40:31-45. [PMID: 31656090 DOI: 10.1080/07388551.2019.1675582] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Phytoremediation uses plants and associated microbes to remove pollutants from the environment and is considered a promising bioremediation method. Compared with well-described single contaminant treatments, the number of studies reporting phytoremediation of soil mixed pollutants has increased recently. Endophytes, including bacteria and fungi, exhibit beneficial traits for the promotion of plant growth, stress alleviation, and biodegradation. Moreover, endophytes either directly or indirectly assist host plants to survive high concentrations of organic and inorganic pollutants in the soil. Endophytic microorganisms can also regulate the plant metabolism in different ways, exhibiting a variety of physiological characteristics. This review summarizes the taxa and physiological properties of endophytic microorganisms that may participate in the detoxification of contaminant mixtures. Furthermore, potential biomolecules that may enhance endophyte mediated phytoremediation are discussed. The practical applications of pollutant-degrading endophytes and current strategies for applying this valuable bio-resource to soil phytoremediation are summarized.
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Affiliation(s)
- Wei He
- College of Life Sciences, Nanjing Normal University, Nanjing, China.,Global Centre for Environmental Remediation (GCER), The University of Newcastle (UoN), Callaghan, Australia
| | - Mallavarapu Megharaj
- Global Centre for Environmental Remediation (GCER), The University of Newcastle (UoN), Callaghan, Australia
| | - Chun-Ya Wu
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Suresh R Subashchandrabose
- Global Centre for Environmental Remediation (GCER), The University of Newcastle (UoN), Callaghan, Australia
| | - Chuan-Chao Dai
- College of Life Sciences, Nanjing Normal University, Nanjing, China
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26
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Hussain Z, Arslan M, Shabir G, Malik MH, Mohsin M, Iqbal S, Afzal M. Remediation of textile bleaching effluent by bacterial augmented horizontal flow and vertical flow constructed wetlands: A comparison at pilot scale. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 685:370-379. [PMID: 31176969 DOI: 10.1016/j.scitotenv.2019.05.414] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 05/26/2019] [Accepted: 05/27/2019] [Indexed: 06/09/2023]
Abstract
Fabric bleaching is one of the most widely used processes of the textile industry that also produces a significant amount of highly polluted wastewater. Previously, expensive and chemically extensive conventional remediation systems were used to treat bleaching effluent. Despite this, the potential of constructed wetlands (CWs) as a treatment system remains un-investigated. Furthermore, most research on the use of CWs for textile effluents are conducted at laboratory scale and therefore further research at field-scale is timely. This study compares the efficacy of bacterial augmented vertical flow constructed wetlands (VFCWs) and horizontal flow constructed wetlands (HFCWs) for the remediation of textile bleaching wastewater at pilot scale. To this end, CWs macrocosms of 1000 L water capacity were planted with Phragmites australis and inoculated with bacterial strains possessing pollutant degradation and plant growth-promoting traits. The results showed that both variants of CWs were effective in attenuating pollutants from the wastewater; however, the performance of HFCWs exceeded that of the VFCWs for almost every pollutant measure undertaken. For HFCWs, a significant reduction in COD (89%), BOD (91%), TOC (96%), and toxicity was achieved in a period of 72 h during the first month of operation. Bacterial inoculation in CWs further improved the system's performance and these bacteria also exhibited persistence in the rhizoplane (43%), root interior (56%) and shoot interior (29%) of P. australis. This study, therefore, suggests that the bacterial augmented HFCWs is a suitable approach for industrial scale textile bleach wastewater treatment.
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Affiliation(s)
- Zahid Hussain
- University of Management and Technology, Lahore, Pakistan; Interloop Limited, Khurrianwala, Faisalabad, Pakistan
| | - Muhammad Arslan
- Soil & Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan; Environmental Biotechnology Department, Helmholtz Centre for Environmental Research, Leipzig, Germany.
| | - Ghulam Shabir
- Soil & Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan
| | | | - Muhammad Mohsin
- Department of Textile Engineering, UET Lahore, Faisalabad, Campus, Pakistan
| | - Samina Iqbal
- Soil & Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan
| | - Muhammad Afzal
- Soil & Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan
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27
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Nguyen PM, Afzal M, Ullah I, Shahid N, Baqar M, Arslan M. Removal of pharmaceuticals and personal care products using constructed wetlands: effective plant-bacteria synergism may enhance degradation efficiency. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:21109-21126. [PMID: 31134537 DOI: 10.1007/s11356-019-05320-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 04/30/2019] [Indexed: 06/09/2023]
Abstract
Post-industrial era has witnessed significant advancements at unprecedented rates in the field of medicine and cosmetics, which has led to affluent use of pharmaceuticals and personal care products (PPCPs). However, this has exacerbated the influx of various pollutants in the environment affecting living organisms through multiple routes. Thousands of PPCPs of various classes-prescription and non-prescription drugs-are discharged directly into the environment. In this review, we have surveyed literature investigating plant-based remediation practices to remove PPCPs from the environment. Our specific aim is to highlight the importance of plant-bacteria interplay for sustainable remediation of PPCPs. The green technologies not only are successfully curbing organic pollutants but also have displayed certain limitations. For example, the presence of biologically active compounds within plant rhizosphere may affect plant growth and hence compromise the phytoremediation potential of constructed wetlands. To overcome these hindrances, combined use of plants and beneficial bacteria has been employed. The microbes (both rhizo- and endophytes) in this type of system not only degrade PPCPs directly but also accelerate plant growth by producing growth-promoting enzymes and hence remediation potential of constructed wetlands.
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Affiliation(s)
- Phuong Minh Nguyen
- Department of Environmental Technology, Faculty of Environmental Sciences, VNU University of Science, Vietnam National University, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam.
| | - Muhammad Afzal
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, 38000, Pakistan
| | - Inaam Ullah
- International Join laboratory for Global Climate Change Ecology, School of Life Sciences, Henan University, Kaifeng, Henan, China
| | - Naeem Shahid
- Department System Ecotoxicology, Helmholtz Centre for Environmental Research-UFZ, Permoserstr. 15, Leipzig, 04318, Germany
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Islamabad, Pakistan
| | - Mujtaba Baqar
- Sustainable Development Study Centre, Government College University Lahore, Lahore, 54000, Pakistan
| | - Muhammad Arslan
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, 38000, Pakistan.
- Department of Environmental Biotechnology, Helmholtz Centre for Environmental Research-UFZ, Permoserstr. 15, 04318, Leipzig, Germany.
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28
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Rehman K, Ijaz A, Arslan M, Afzal M. Floating treatment wetlands as biological buoyant filters for wastewater reclamation. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:1273-1289. [PMID: 31244322 DOI: 10.1080/15226514.2019.1633253] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Floating treatment wetlands (FTWs) are an innovative product of ecological engineering that can play a promising role in wastewater treatment. It provides low-cost, eco-friendly, and sustainable solutions for the treatment of wastewater, particularly in regions with economic constraints. Generally, FTWs comprise rooted plants that grow on the surface of water with their roots extending down into the pelagic zone rather than being embedded into the sediments. This drooping structure helps develop (1) a hydraulic flow between the root network and the bottom of the treatment system and (2) a large biologically active surface area for the physical entrapment (filtration) of contaminants, as well as their biochemical transformation and degradation. Furthermore, the rooted network allows proliferation of microorganisms that form biofilms and enhance pollutant degradation while promoting plant growth. The augmentation of bacteria in FTWs has been proven to be the most effective approach for reclamation of wastewater. This article discusses the operational parameters of FTWs for maximal remediation of wastewater and highlights the importance of plant-bacteria partnerships in a typical FTW system for enhanced cleanup of wastewater. We propose that this technology is preferable over other methods that require high energy, costs, and area to install or operate machinery.
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Affiliation(s)
- Khadeeja Rehman
- Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad, Pakistan
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Amna Ijaz
- Department of Chemistry, Michigan Technological University, Houghton, MI, USA
| | - Muhammad Arslan
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
- Department of Environmental Biotechnology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
- Institute for Biology V (Environmental Research), RWTH Aachen University, Aachen, Germany
| | - Muhammad Afzal
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
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29
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Houshani M, Salehi-Lisar SY, Motafakkerazad R, Movafeghi A. Uptake and distribution of phenanthrene and pyrene in roots and shoots of maize (Zea mays L.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:9938-9944. [PMID: 30739292 DOI: 10.1007/s11356-019-04371-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 01/24/2019] [Indexed: 06/09/2023]
Abstract
Polycyclic aromatic hydrocarbons as byproducts of carbon-based fuel combustion are an important group of pollutants with wide distribution in the environment. Polycyclic aromatic hydrocarbons are known as toxic compounds for almost all organisms. Different plant species can uptake polycyclic aromatic hydrocarbons by roots and translocate them to various aerial parts. The aim of this study is to investigate the uptake, translocation, and accumulation of pyrene and phenanthrene in maize under controlled conditions. Seeds were cultivated in perlite containing 25, 50, 75, and 100 ppm of phenanthrene and pyrene, and their concentrations in the roots and shoots of the plants were measured using high-performance liquid chromatography technique after 7, 14, and 21 days. The results revealed that phenanthrene naturally existed in maize and its concentration showed a time-dependent decrease in shoots and roots. In contrast, the concentration of pyrene was increased in the roots and reduced in the shoots. Although pyrene had higher uptake than phenanthrene in roots of maize, the translocation factor value for pyrene was lower than for phenanthrene. According to these findings, phenanthrene could be metabolized in maize in the shoot and root tissues, but pyrene had more tendency to be accumulated in roots.
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Affiliation(s)
- Mahdieh Houshani
- Department of Plant Sciences, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | | | - Ruhollah Motafakkerazad
- Department of Plant Sciences, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Ali Movafeghi
- Department of Plant Sciences, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
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30
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Rehman K, Imran A, Amin I, Afzal M. Enhancement of oil field-produced wastewater remediation by bacterially-augmented floating treatment wetlands. CHEMOSPHERE 2019; 217:576-583. [PMID: 30445402 DOI: 10.1016/j.chemosphere.2018.11.041] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 10/24/2018] [Accepted: 11/04/2018] [Indexed: 06/09/2023]
Abstract
Plants and bacteria individually as well as in synergism with each other hold a great potential to degrade a wide range of environmental pollutants. Floating treatment wetlands (FTWs) is an efficient and low-cost technology that uses the synergistic interaction between plant roots and microbes for in situ remediation of wastewater. The present study aims to assess the feasibility of FTW-based remediation of oil field-produced wastewater using an interaction between two plant species, Typha domingensis and Leptochloa fusca, in partnership with a consortium of crude oil-degrading bacterial species, Bacillus subtilis LORI66, Klebsiella sp. LCRI87, Acinetobacter Junii TYRH47, and Acinetobacter sp. BRSI56. All the treatments reduced contaminant levels, but T. domingensis, in combination with bacterial inoculation, exhibited the highest reduction in hydrocarbon (95%), COD (90%), and BOD content (93%) as compared to L. fusca. This combination maximally promoted increases in fresh biomass (31%), dry biomass (52%), and length (25%) of plants as well. This effect was further signified by the persistence of bacteria (40%) and considerable abundance (27%) and expression (28.5%) of the alkB gene in the rhizoplane of T. domingensis in comparison to that of L. fusca. The study, therefore, suggests that T. domingensis, in combination with bacterial consortium, has significant potential for treatment of oil field-produced water and can be exploited on large scale in FTWs.
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Affiliation(s)
- Khadeeja Rehman
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan; Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan
| | - Asma Imran
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Imran Amin
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Muhammad Afzal
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan.
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31
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Siebielec S, Siebielec G, Urbaniak M, Smreczak B, Grzęda E, Wyrwicka A, Susan Kidd P. Impact of rhizobacterial inoculants on plant growth and enzyme activities in soil treated with contaminated bottom sediments. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:325-333. [PMID: 30648417 DOI: 10.1080/15226514.2018.1524833] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 08/01/2018] [Accepted: 09/04/2018] [Indexed: 06/09/2023]
Abstract
The impact of contaminated bottom sediments on plant growth and soil enzyme activities was evaluated in a greenhouse pot study. The sediments were moderately contaminated with zinc and heavily contaminated with polycyclic aromatic hydrocarbons and polychlorinated dibenzo-p-dioxins and furans. The sediments were mixed with soil and planted with either Festuca arundinacea or Tagetes patula. The capacity of two rhizobacterial strains (Massilia niastensis P87 and Streptomyces costaricanus RP92), previously isolated from contaminated soils, to improve plant growth under the chemical stress was tested. Application of sediments to soil was severely phytotoxic to T. patula and mildly to F. arundinacea. On the other hand, the addition of sediments enhanced the soil enzymatic activity. Inoculation with both bacterial strains significantly increased shoot (up to 2.4-fold) and root (up to 3.4-fold) biomass of T. patula. The study revealed that the selected plant growth-promoting bacterial strains were able to alleviate phytotoxicity of bottom sediments to T. patula resulting from the complex character of the contamination.
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Affiliation(s)
- Sylwia Siebielec
- a Department of Agricultural Microbiology , Institute of Soil Science and Plant Cultivation, State Research Institute , Pulawy , Poland
| | - Grzegorz Siebielec
- b Department of Soil Science Erosion and Land Protection , Institute of Soil Science and Plant Cultivation - State Research Institute , Pulawy , Poland
| | - Magdalena Urbaniak
- c European Regional Centre for Ecohydrology of the Polish Academy of Sciences , Łódź , Poland
- d Department of Applied Ecology, Faculty of Biology and Environmental Protection , University of Lodz , Lodz , Poland
| | - Bożena Smreczak
- b Department of Soil Science Erosion and Land Protection , Institute of Soil Science and Plant Cultivation - State Research Institute , Pulawy , Poland
| | - Emilia Grzęda
- a Department of Agricultural Microbiology , Institute of Soil Science and Plant Cultivation, State Research Institute , Pulawy , Poland
| | - Anna Wyrwicka
- e Department of Plant Physiology and Biochemistry, Faculty of Biology and Environmental Protection , University of Lodz , Lodz , Poland
| | - Petra Susan Kidd
- f Instituto de Investigaciones Agrobiológicas de Galicia (IIAG) , Consejo Superior de Investigaciones Científicas (CSIC) , Santiago de Compostela , Spain
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32
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Cheng L, Zhou Q, Yu B. Responses and roles of roots, microbes, and degrading genes in rhizosphere during phytoremediation of petroleum hydrocarbons contaminated soil. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:1161-1169. [PMID: 31099253 DOI: 10.1080/15226514.2019.1612841] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Rhizodegradation performed by plant roots and the associated bacteria is one of the major mechanisms that contribute to removal of petroleum hydrocarbons (PHCs) during phytoremediation. In this study, the pot-culture experiment using wild ornamental Hylotelephium spectabile (Boreau) H. Ohba was designed to explore responses and roles of roots, microbes, and degrading genes in the rhizodegradation process. Results showed that PHCs degradation rate by phytoremediation was up to 37.6-53.3% while phytoaccumulation accounted for a low proportion, just at 0.3-13.3%. A total of 37 phyla were classified through the high throughput sequencing, among which Proteobacteria, Actinobacteria, and Acidobacteria were the three most dominant phyla, accounting for >60% of the phylum frequency. The selective enrichment of PHC degraders with high salt-tolerance, including Alcanivorax and Bacteroidetes, was induced. Generally, relative abundance of the PHC degrading genes increased significantly with an increase in PHCs concentrations, and the gene copy number in the phytoremediation group was 1.46-14.44 times as much as that in the unplanted controls. Overall, the presence of PHCs and plant roots showed a stimulating effect on the development of specific degraders containing PHC degrading genes, and correspondingly, a biodegradation-beneficial community structure had been constructed to contribute to PHCs degradation in the rhizosphere.
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Affiliation(s)
- Lijuan Cheng
- Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Ministry of Education, College of Environmental Science and Engineering, Nankai University , Tianjin , China
- College of Geography and Tourism, Chongqing Normal University , Chongqing , China
| | - Qixing Zhou
- Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Ministry of Education, College of Environmental Science and Engineering, Nankai University , Tianjin , China
| | - Binbin Yu
- College of Environmental Science and Engineering, Yangzhou University , Yangzhou , China
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Hussain Z, Arslan M, Malik MH, Mohsin M, Iqbal S, Afzal M. Treatment of the textile industry effluent in a pilot-scale vertical flow constructed wetland system augmented with bacterial endophytes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 645:966-973. [PMID: 30032091 DOI: 10.1016/j.scitotenv.2018.07.163] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 07/01/2018] [Accepted: 07/13/2018] [Indexed: 05/18/2023]
Abstract
A pilot-scale vertical flow constructed wetland (VFCWs) system was designed, implemented and operated for one year for the treatment of dye-rich real textile effluent. Brachiaria mutica was vegetated to develop VFCWs in which five different textile effluent degrading endophytic bacteria were inoculated. These bacteria were screened based on their dye degrading and plant growth promoting capabilities. The system's performance was evaluated by monitoring physicochemical parameters, nutrients removal, heavy metals reduction, detoxification potential, and persistence of endophytic bacteria in the plant rhizo- and endosphere. Although VFCWs were able to remove a majority of the pollutants from the wastewater, bacterial augmentation further enhanced the remediation efficiency. The system promoted an increase in dissolved oxygen up to 188% and, concomitantly, a substantial decrease in the chemical oxygen demand (81%), biochemical oxygen demand (72%), total dissolved solids (32%), color (74%), nitrogen (84%), phosphorous (79%), and heavy metals [Cr(97%), Fe(89%), Ni(88%), Cd(72%)] was recorded. Wastewater treated with VFCWs augmented with bacteria was found to be non-toxic and inoculated bacteria showed persistence in the root and shoot interior of B. mutica. Conclusively, VFCWs proved to be an effective methodology for treatment of textile effluent whereas its smaller size with high efficiency is an advantage for field-scale applications.
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Affiliation(s)
- Zahid Hussain
- University of Management and Technology, Lahore, Pakistan; Interloop Limited, Khurrianwala, Faisalabad, Pakistan
| | - Muhammad Arslan
- National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan; Environmental Biotechnology Department, Helmholtz Centre for Environmental Research, Leipzig, Germany.
| | | | | | - Samina Iqbal
- National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Muhammad Afzal
- National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan.
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Cevher-Keskin B, Selçukcan-Erol Ç, Yüksel B, Ertekin Ö, Yıldızhan Y, Onarıcı S, Kulen O, Memon AR. Comparative transcriptome analysis of Zea mays in response to petroleum hydrocarbon stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:32660-32674. [PMID: 30242659 DOI: 10.1007/s11356-018-3078-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
The use of plants for the improvement of soils contaminated with hydrocarbons has been a primary research focus in phytoremediation studies. Obtaining insights regarding genes that are differentially induced by petroleum hydrocarbon stress and understanding plant response mechanisms against petroleum hydrocarbons at molecular level is essential for developing better phytoremediation strategies to remove these hazardous contaminants. The purpose of this study was to analyze the transcriptomal profile changes under hydrocarbon stress in maize plants and identify the genes associated with the phytoremediative capacity. Zea mays GeneChips were used to analyze the global transcriptome profiles of maize treated with different concentrations of petroleum hydrocarbons. In total, 883, 1281, and 2162 genes were differentially induced or suppressed in the comparisons of 0 (control) vs. 1% crude petroleum, 1 vs. 5% crude petroleum, and 0 vs. 5% crude petroleum, respectively. The differentially expressed genes were functionally associated with the osmotic stress response mechanism, likely preventing the uptake of water from the roots, and the phytoremediative capacity of plants, e.g., secretory pathway genes. The results presented here show the regulatory mechanisms in the response to petroleum hydrocarbon pollution in soil. Our study provides global gene expression data of Z. mays in response to petroleum hydrocarbon stress that could be useful for further studies investigating the biodegradation mechanism in maize and other plants.
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Affiliation(s)
- Birsen Cevher-Keskin
- Marmara Research Center, Genetic Engineering and Biotechnology Institute, Plant Molecular Biology & Genetics Laboratory, The Scientific and Technological Research Council of Turkey (TUBITAK) , P O Box, 21, 41470, Gebze, Kocaeli, Turkey.
| | - Çiğdem Selçukcan-Erol
- Faculty of Science, Department of Informatics, Istanbul University, Beyazıt/Fatih, Istanbul, Turkey
| | - Bayram Yüksel
- Marmara Research Center, Genetic Engineering and Biotechnology Institute, Plant Molecular Biology & Genetics Laboratory, The Scientific and Technological Research Council of Turkey (TUBITAK) , P O Box, 21, 41470, Gebze, Kocaeli, Turkey
| | - Özlem Ertekin
- Marmara Research Center, Genetic Engineering and Biotechnology Institute, Plant Molecular Biology & Genetics Laboratory, The Scientific and Technological Research Council of Turkey (TUBITAK) , P O Box, 21, 41470, Gebze, Kocaeli, Turkey
| | - Yasemin Yıldızhan
- Marmara Research Center, Genetic Engineering and Biotechnology Institute, Plant Molecular Biology & Genetics Laboratory, The Scientific and Technological Research Council of Turkey (TUBITAK) , P O Box, 21, 41470, Gebze, Kocaeli, Turkey
| | - Selma Onarıcı
- Marmara Research Center, Genetic Engineering and Biotechnology Institute, Plant Molecular Biology & Genetics Laboratory, The Scientific and Technological Research Council of Turkey (TUBITAK) , P O Box, 21, 41470, Gebze, Kocaeli, Turkey
| | - Oktay Kulen
- Marmara Research Center, Genetic Engineering and Biotechnology Institute, Plant Molecular Biology & Genetics Laboratory, The Scientific and Technological Research Council of Turkey (TUBITAK) , P O Box, 21, 41470, Gebze, Kocaeli, Turkey
| | - Abdul Razaque Memon
- Faculty of Science and Arts, Department of Molecular Biology and Genetics, Uşak University, Bir Eylul Kampus, 64200, Uşak, Turkey
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Hussain Z, Arslan M, Malik MH, Mohsin M, Iqbal S, Afzal M. Integrated perspectives on the use of bacterial endophytes in horizontal flow constructed wetlands for the treatment of liquid textile effluent: Phytoremediation advances in the field. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 224:387-395. [PMID: 30064065 DOI: 10.1016/j.jenvman.2018.07.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 07/14/2018] [Accepted: 07/17/2018] [Indexed: 05/18/2023]
Abstract
Constructed wetlands (CWs) have emerged as cost-effective and sustainable treatment systems for the remediation of industrial wastewaters; nevertheless, their potential has mostly been evaluated in laboratory-scale studies. Likewise, endophytic bacteria can enhance plant growth and reduce phytotoxicity under polluted conditions, but their application with pilot-scale CWs has rarely been evaluated. The present study aims to evaluate on-site performance of endophyte-assisted pilot-scale horizontal flow constructed wetlands (HFCWs) for the remediation of effluent from a textile industry. The HFCWs were established by planting Leptochloa fusca in the presence of three endophytic bacterial strains with dye degrading, and plant growth promoting capabilities. We found that the system was able to remove a significant proportion of both organic and inorganic pollutants. Maximum reduction of pollutants was observed in endophyte-augmented HFCWs, where the COD and BOD reduced from 493 to 70 mg l-1 and 190 to 42 mg l-1, respectively, within 48 h. Additionally, survival of endophytic bacteria in different components of the HFCWs was also recorded. Treated wastewater was found to be non-toxic and the inoculated bacteria showed persistence in the wastewater as well as rhizo- and endosphere of L. fusca. Accordingly, a positive impact on plant growth was observed in the presence of bacterial augmentation. The system performance was comparable to the vertical flow constructed wetlands (VFCWs) as high nutrients reduction was seen in the presence of this partnership. This pilot-scale study is a step forward toward the field-scale application of phytoremediation coupled with bacterial endophytes as a cost-effective means of on-site wastewater remediation. To the best of our knowledge, this is among the first pilot-scale studies on use of HFCWs for improvement in quality of textile industry effluent as most previous studies are limited either in the context of engineering or lack effective interplay of plant and bacteria.
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Affiliation(s)
- Zahid Hussain
- University of Management and Technology, Lahore, Pakistan; Interloop Limited, Khurrianwala, Faisalabad, Pakistan
| | - Muhammad Arslan
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan; Environmental Biotechnology Department, Helmholtz Centre for Environmental Research, Leipzig, Germany.
| | | | | | - Samina Iqbal
- Environmental Biotechnology Department, Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Muhammad Afzal
- Environmental Biotechnology Department, Helmholtz Centre for Environmental Research, Leipzig, Germany.
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Majeed A, Kaleem Abbasi M, Hameed S, Yasmin S, Hanif MK, Naqqash T, Imran A. Pseudomonas sp. AF-54 containing multiple plant beneficial traits acts as growth enhancer of Helianthus annuus L. under reduced fertilizer input. Microbiol Res 2018; 216:56-69. [PMID: 30269857 DOI: 10.1016/j.micres.2018.08.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/12/2018] [Accepted: 08/10/2018] [Indexed: 12/23/2022]
Abstract
Plant growth promoting rhizobacteria (PGPR) are capable to increase the growth and yield of crops in eco-friendly and sustainable manner. To evaluate the response of sunflower towards inoculation with PGPR, a sunflower root associated bacterium AF-54 isolated from Diyar Gali Himalayan Mountain region, Azad Jammu and Kashmir (AJK), identified as Pseudomonas sp. by 16S rRNA sequence analysis and was characterized using polyphasic approach. The bacterium produced 23.9 μgmL-1 indole-3-acetic acid in tryptophan-supplemented medium, showed 44.28 nmoles mg-1 protein h-1 nitrogenase activity through acetylene reduction assay and released 48.80 μg mL-1 insoluble phosphorus in Pikovskaya's broth. During P-solubilization, the pH of the Pikovskaya's medium decreased from 7 to 3.04 due to the production of acetic acid, malic acid and gluconic acid. Pseudomonas sp. AF-54 showed metabolic versatility by utilizing 79 carbon sources from BIOLOG GN2 plates and resistance to many antibiotics. Furthermore, it inhibited the growth of Fusarium oxysporum in dual culture assay. To evaluate the plant-inoculation response, series of experiments conducted in hydroponic, sterilized soil and fields at AJK, and Faisalabad where inoculated plants with reduced fertilizer showed a significant increase in growth, yield, oil contents and achene NP uptake as compared to non-inoculated control. AF-54 showed extensive root colonization in sterilized and non-sterile conditions documented through yfp-labeling and fluorescent in situ hybridization coupled with confocal laser scanning microscopy. This study concludes that the Pseudomonas sp. strain AF-54 containing multiple plant growth promoting traits can be a potential candidate for biofertilizer production to enhance sunflower crop yield with reduced application of chemical (NP) fertilizers.
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Affiliation(s)
- Afshan Majeed
- Department of Soil and Environmental Sciences, The University of Poonch, Rawalakot, Azad Jammu and Kashmir, Pakistan; National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan
| | - M Kaleem Abbasi
- Department of Soil and Environmental Sciences, The University of Poonch, Rawalakot, Azad Jammu and Kashmir, Pakistan
| | - Sohail Hameed
- National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan; Academics and Coordination (Biology), Pakistan Atomic Energy Commission, Islamabad, Pakistan; Department of Biosciences, University of Wah Research Lab. Complex, University of Wah, Wah Cantt, Pakistan
| | - Sumera Yasmin
- National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan
| | - Muhammad Kashif Hanif
- National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan; Department of Biotechnology, University of Sargodha, Sargodha, Pakistan
| | - Tahir Naqqash
- National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan; Institute of Molecular Biology and Biotechnology, Bahauddin Zakariya University, Multan, Pakistan
| | - Asma Imran
- National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan.
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Fatima K, Imran A, Amin I, Khan QM, Afzal M. Successful phytoremediation of crude-oil contaminated soil at an oil exploration and production company by plants-bacterial synergism. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2018; 20:675-681. [PMID: 29723052 DOI: 10.1080/15226514.2017.1413331] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Phytoremediation is a promising approach for the cleanup of soil contaminated with petroleum hydrocarbons. This study aimed to develop plant-bacterial synergism for the successful remediation of crude oil-contaminated soil. A consortia of three endophytic bacteria was augmented to two grasses, Leptochloa fusca and Brachiaria mutica, grown in oil-contaminated soil (46.8 g oil kg-1 soil) in the vicinity of an oil exploration and production company. Endophytes augmentation improved plant growth, crude oil degradation, and soil health. Maximum oil degradation (80%) was achieved with B. mutica plants augmented with the endophytes and it was significantly (P < 0.05) higher than the use of plants or bacteria individually. Moreover, endophytes showed more persistence, the abundance and expression of alkB gene in the rhizosphere as well as in the endosphere of the tested plants than in unvegetated soil. A positive relationship (r = 0.70) observed between gene expression and crude oil reduction indicates that catabolic gene expression is important for hydrocarbon mineralization. This investigation showed that the use of endophytes with appropriate plant is an effective strategy for the cleanup of oil-contaminated soil under field conditions.
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Affiliation(s)
- Kaneez Fatima
- a Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) , Faisalabad , Pakistan
| | - Asma Imran
- a Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) , Faisalabad , Pakistan
| | - Imran Amin
- a Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) , Faisalabad , Pakistan
| | - Qaiser M Khan
- a Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) , Faisalabad , Pakistan
| | - Muhammad Afzal
- a Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) , Faisalabad , Pakistan
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Rehman K, Imran A, Amin I, Afzal M. Inoculation with bacteria in floating treatment wetlands positively modulates the phytoremediation of oil field wastewater. JOURNAL OF HAZARDOUS MATERIALS 2018; 349:242-251. [PMID: 29428685 DOI: 10.1016/j.jhazmat.2018.02.013] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 01/20/2018] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
The aim of the present study was to investigate the potential of plant-bacterial synergism in floating treatment wetlands (FTWs) for efficient remediation of an oil field wastewater. Two plants, Brachiara mutica and Phragmites australis, were vegetated on floatable mats to develop FTWs, and inoculated with bacterial cons which were then inoculated with a consortium of hydrocarbon-degrading bacteria (Bacillus subtilis strain LORI66, Klebsiella sp. strain LCRI87, Acinetobacter Junii strain TYRH47, Acinetobacter sp. strain LCRH81). Both plants successfully removed organic and inorganic pollutants from wastewater, but bioaugmentation of P. australis significantly enhanced the plant's efficiency to reduce oil content (97%), COD (93%), and BOD (97%), in wastewater. Analysis of alkane-degrading gene (alkB) abundance and its expression profile further validated a higher microbial growth and degradation activity in water around P. australis as well as its roots and shoots. This study provides insight into the available phytotechnology for remediation of crude oil-contaminated water and introduces a wetland macrophyte, P. australis, with tailor-made bacterial consortium as an effective tool for improved phytoremediation efficiency of FTWs.
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Affiliation(s)
- Khadeeja Rehman
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan; Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan
| | - Asma Imran
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Imran Amin
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Muhammad Afzal
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan.
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Dudai N, Tsion I, Shamir SZ, Nitzan N, Chaimovitsh D, Shachter A, Haim A. Agronomic and economic evaluation of Vetiver grass (Vetiveria zizanioides L.) as means for phytoremediation of diesel polluted soils in Israel. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 211:247-255. [PMID: 29408073 DOI: 10.1016/j.jenvman.2018.01.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 11/10/2017] [Accepted: 01/04/2018] [Indexed: 05/16/2023]
Abstract
Soil pollution in Israel, due to diesel contamination, is a major concern, with gas stations, factories and refineries being the main polluters (>60%). Vetiver grass (Vetiveria zizanioides L.) is a perennial grass belonging to the Poaceae family, and is recognized world-wide for its potential as a plant with phytoremediation traits to contaminated soils. It is demonstrated here to decrease diesel contamination in field and court-yard trials. Chemical soil analysis indicated up to a 79% decrease (P < .05) in diesel pollution of contaminated soil planted with Vetiver; and at high soil contamination levels of 10 L/m2, a significant (P < .05) reduction of 96, 96 and 87% was recorded at soil depths of 0-20, 20-40 and 40-60 cm, respectively. Furthermore, in field plots contaminated with diesel and planted with Vetiver, weeds' biomass recovered to non-polluted levels following 8 to 9 months of Vetiver treatment. An economic evaluation conducted based on the cost-benefit analysis (CBA) principles, utilizing the Net Present Value (NPV) compared phytoremediation to other currently used decontamination procedures. The economic comparison showed that phytoremediation cleanup costs are lower and more beneficial to society at large, primarily from an ecosystem services perspective. Combining the results of the agronomic examination with the economic valuation, this research pointed out that phytoremediation with Vetiver has a non-negligible potential, making it a good solution for cleansing diesel from soils on a state-wide scale in Israel and worthy of further research and development.
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Affiliation(s)
- Nativ Dudai
- Agricultural Research Organization, Newe Ya'ar Research Center, POB 1021, Ramat Yishay 30095, Israel.
| | - Itai Tsion
- Agricultural Research Organization, Newe Ya'ar Research Center, POB 1021, Ramat Yishay 30095, Israel; Dept. of Natural Resources and Environmental Management, University of Haifa, Mount Carmel, Haifa 3498838, Israel
| | - Shiri Zemah Shamir
- School of Sustainability, Interdisciplinary Center (IDC) Herzliya, P.O.Box 167, Herzliya 46150, Israel.
| | - Nadav Nitzan
- Agricultural Research Organization, Newe Ya'ar Research Center, POB 1021, Ramat Yishay 30095, Israel
| | - David Chaimovitsh
- Agricultural Research Organization, Newe Ya'ar Research Center, POB 1021, Ramat Yishay 30095, Israel
| | - Alona Shachter
- Agricultural Research Organization, Newe Ya'ar Research Center, POB 1021, Ramat Yishay 30095, Israel
| | - Abraham Haim
- Dept. of Natural Resources and Environmental Management, University of Haifa, Mount Carmel, Haifa 3498838, Israel
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Ahsan MT, Najam-Ul-Haq M, Saeed A, Mustafa T, Afzal M. Augmentation with potential endophytes enhances phytostabilization of Cr in contaminated soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:7021-7032. [PMID: 29273991 DOI: 10.1007/s11356-017-0987-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 12/10/2017] [Indexed: 06/07/2023]
Abstract
The contamination of soil with heavy metals is a major environmental problem worldwide. The combined use of plants and their associated microbes has gained popularity in recent years for their potential to remediate heavy metal-contaminated soil. In the current study, the effect that augmentation of soil with plant growth-promoting endophytes has on the phytostabilization of chromium (Cr)-contaminated soil was investigated. Three potential endophytic bacterial strains (Enterobacter sp. HU38, Microbacterium arborescens HU33, and Pantoea stewartii ASI11) were inoculated individually as well as in combination to Leptochloa fusca and Brachiaria mutica vegetated in Cr-contaminated soil. The accumulation of Cr in the root and shoot of the plants was determined. Moreover, bacterial persistence in the rhizosphere and endosphere was determined. Augmentation with potential endophytes significantly increased root length (24-45%), shoot height (39-64%), chlorophyll content (20-55%), and the overall biomass (32-61%) of the plants. Although L. fusca and B. mutica showed potential to accumulate Cr in their root and shoot, endophytic augmentation increased uptake, translocation, and accumulation of Cr in the roots and shoots of both plant species. However, L. fusca showed more potential to phytostabilize Cr as compared to B. mutica. Furthermore, the potential endophytes showed more survival and persistence within the roots than in the rhizosphere and shoot interior. This study provides useful evidence of endophyte-assisted phytoremediation to be the most sustainable and affordable approach for in situ remediation of Cr-contaminated soil.
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Affiliation(s)
- Muhammad T Ahsan
- Division of Analytical Chemistry, Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Muhammad Najam-Ul-Haq
- Division of Analytical Chemistry, Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Abdul Saeed
- Division of Analytical Chemistry, Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Tanveer Mustafa
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), P. O. Box 577, Faisalabad, Pakistan
| | - Muhammad Afzal
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), P. O. Box 577, Faisalabad, Pakistan.
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Doty SL, Freeman JL, Cohu CM, Burken JG, Firrincieli A, Simon A, Khan Z, Isebrands JG, Lukas J, Blaylock MJ. Enhanced Degradation of TCE on a Superfund Site Using Endophyte-Assisted Poplar Tree Phytoremediation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:10050-10058. [PMID: 28737929 DOI: 10.1021/acs.est.7b01504] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Trichloroethylene (TCE) is a widespread environmental pollutant common in groundwater plumes associated with industrial manufacturing areas. We had previously isolated and characterized a natural bacterial endophyte, Enterobacter sp. strain PDN3, of poplar trees, that rapidly metabolizes TCE, releasing chloride ion. We now report findings from a successful three-year field trial of endophyte-assisted phytoremediation on the Middlefield-Ellis-Whisman Superfund Study Area TCE plume in the Silicon Valley of California. The inoculated poplar trees exhibited increased growth and reduced TCE phytotoxic effects with a 32% increase in trunk diameter compared to mock-inoculated control poplar trees. The inoculated trees excreted 50% more chloride ion into the rhizosphere, indicative of increased TCE metabolism in planta. Data from tree core analysis of the tree tissues provided further supporting evidence of the enhanced rate of degradation of the chlorinated solvents in the inoculated trees. Test well groundwater analyses demonstrated a marked decrease in concentration of TCE and its derivatives from the tree-associated groundwater plume. The concentration of TCE decreased from 300 μg/L upstream of the planted area to less than 5 μg/L downstream of the planted area. TCE derivatives were similarly removed with cis-1,2-dichloroethene decreasing from 160 μg/L to less than 5 μg/L and trans-1,2-dichloroethene decreasing from 3.1 μg/L to less than 0.5 μg/L downstream of the planted trees. 1,1-dichloroethene and vinyl chloride both decreased from 6.8 and 0.77 μg/L, respectively, to below the reporting limit of 0.5 μg/L providing strong evidence of the ability of the endophytic inoculated trees to effectively remove TCE from affected groundwater. The combination of native pollutant-degrading endophytic bacteria and fast-growing poplar tree systems offers a readily deployable, cost-effective approach for the degradation of TCE, and may help mitigate potential transfer up the food chain, volatilization to the atmosphere, as well as direct phytotoxic impacts to plants used in this type of phytoremediation.
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Affiliation(s)
- Sharon L Doty
- University of Washington , Seattle, Washington 98195-2100, United States
| | - John L Freeman
- Intrinsyx Technologies Corporation, NASA Ames Research Park, Moffett Field, California 94035-1000, United States
| | - Christopher M Cohu
- Phytoremediation and Phytomining Consultants United, Grand Junction, Colorado 81507, United States
| | - Joel G Burken
- Department of Civil, Architectural, and Environmental Engineering, Missouri University of Science and Technology , Rolla, Missouri 65409, United States
| | - Andrea Firrincieli
- Dept. for Innovation in Biological, Agro-Food, and Forest Systems, University of Tuscia , Viterbo, Italy
| | - Andrew Simon
- Edenspace Systems Corporation , Purcellville, Virginia 20134, United States
| | - Zareen Khan
- University of Washington , Seattle, Washington 98195-2100, United States
| | - J G Isebrands
- Environmental Forestry Consultants LLC, New London, Wisconsin 54961, United States
| | - Joseph Lukas
- Earth Resources Technology, Inc., Moffett Field, California 94035, United States
| | - Michael J Blaylock
- Edenspace Systems Corporation , Purcellville, Virginia 20134, United States
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Campos V, Lessa SS, Ramos RL, Shinzato MC, Medeiros TAM. Disturbance response indicators of Impatiens walleriana exposed to benzene and chromium. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:709-717. [PMID: 28398075 DOI: 10.1080/15226514.2017.1284745] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The purpose of this study was to evaluate the remediation potential and disturbance response indicators of Impatiens walleriana exposed to benzene and chromium. Numerous studies over the years have found abundant evidence of the carcinogenicity of benzene and chromium (VI) in humans. Benzene and chromium are two toxic industrial chemicals commonly found together at contaminated sites, and one of the most common management strategies employed in the recovery of sites contaminated by petroleum products and trace metals is in situ remediation. Given that increasing interest has focused on the use of plants as depollution agents, direct injection tests and benzene misting were performed on I. walleriana to evaluate the remediation potential of this species. I. walleriana accumulated hexavalent chromium, mainly in the root system (164.23 mg kg-1), to the detriment of the aerial part (39.72 mg kg-1), and presented visible damage only at the highest concentration (30 mg L-1). Unlike chromium (VI), chromium (III) was retained almost entirely by the soil, leaving it available for removal by phytotechnology. However, after the contamination stopped, I. walleriana responded positively to the detoxification process, recovering its stem stiffness and leaf color. I. walleriana showed visible changes such as leaf chlorosis during the ten days of benzene contamination. When benzene is absorbed by the roots, it is translocated to and accumulated in the plant's aerial part. This mechanism the plant uses ensures its tolerance to the organic compound, enabling the species to survive and reproduce after treatment with benzene. Although I. walleriana accumulates minor amounts of hexavalent chromium in the aerial part, this amount suffices to induce greater oxidative stress and to increase the amount of hydrogen peroxide when compared to that of benzene. It was therefore concluded that I. walleriana is a species that possesses desirable characteristics for phytotechnology.
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Affiliation(s)
- V Campos
- a Sorocaba Institute of Science and Technology, São Paulo State University - UNESP , Morumbi , Brazil
| | - S S Lessa
- a Sorocaba Institute of Science and Technology, São Paulo State University - UNESP , Morumbi , Brazil
| | - R L Ramos
- b Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo - UNIFESP , Diadema , Brazil
| | - M C Shinzato
- b Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo - UNIFESP , Diadema , Brazil
| | - T A M Medeiros
- a Sorocaba Institute of Science and Technology, São Paulo State University - UNESP , Morumbi , Brazil
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Ebadi A, Khoshkholgh Sima NA, Olamaee M, Hashemi M, Ghorbani Nasrabadi R. Effective bioremediation of a petroleum-polluted saline soil by a surfactant-producing Pseudomonas aeruginosa consortium. J Adv Res 2017; 8:627-633. [PMID: 28831308 PMCID: PMC5552007 DOI: 10.1016/j.jare.2017.06.008] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 06/15/2017] [Accepted: 06/28/2017] [Indexed: 01/13/2023] Open
Abstract
Bacteria able to produce biosurfactants can use petroleum-based hydrocarbons as a carbon source. Herein, four biosurfactant-producing Pseudomonas aeruginosa strains, isolated from oil-contaminated saline soil, were combined to form a bacterial consortium. The inoculation of the consortium to contaminated soil alleviated the adverse effects of salinity on biodegradation and increased the rate of degradation of petroleum hydrocarbon approximately 30% compared to the rate achieved in non-treated soil. In saline condition, treatment of polluted soil with the consortium led to a significant boost in the activity of dehydrogenase (approximately 2-fold). A lettuce seedling bioassay showed that, following the treatment, the soil's level of phytotoxicity was reduced up to 30% compared to non-treated soil. Treatment with an appropriate bacterial consortium can represent an effective means of reducing the adverse effects of salinity on the microbial degradation of petroleum and thus provides enhancement in the efficiency of microbial remediation of oil-contaminated saline soils.
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Affiliation(s)
- Ali Ebadi
- Department of Soil Science, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Nayer Azam Khoshkholgh Sima
- Agricultural Biotechnology Research Institute of Iran (ABRII), AREEO, P.O. Box: 31535-1897, Karaj, Iran
- Corresponding author.
| | - Mohsen Olamaee
- Department of Soil Science, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Maryam Hashemi
- Agricultural Biotechnology Research Institute of Iran (ABRII), AREEO, P.O. Box: 31535-1897, Karaj, Iran
| | - Reza Ghorbani Nasrabadi
- Department of Soil Science, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
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Feng NX, Yu J, Zhao HM, Cheng YT, Mo CH, Cai QY, Li YW, Li H, Wong MH. Efficient phytoremediation of organic contaminants in soils using plant-endophyte partnerships. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 583:352-368. [PMID: 28117167 DOI: 10.1016/j.scitotenv.2017.01.075] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 01/11/2017] [Accepted: 01/12/2017] [Indexed: 05/20/2023]
Abstract
Soil pollution with organic contaminants is one of the most intractable environmental problems today, posing serious threats to humans and the environment. Innovative strategies for remediating organic-contaminated soils are critically needed. Phytoremediation, based on the synergistic actions of plants and their associated microorganisms, has been recognized as a powerful in situ approach to soil remediation. Suitable combinations of plants and their associated endophytes can improve plant growth and enhance the biodegradation of organic contaminants in the rhizosphere and/or endosphere, dramatically expediting the removal of organic pollutants from soils. However, for phytoremediation to become a more widely accepted and predictable alternative, a thorough understanding of plant-endophyte interactions is needed. Many studies have recently been conducted on the mechanisms of endophyte-assisted phytoremediation of organic contaminants in soils. In this review, we highlight the superiority of organic pollutant-degrading endophytes for practical applications in phytoremediation, summarize alternative strategies for improving phytoremediation, discuss the fundamental mechanisms of endophyte-assisted phytoremediation, and present updated information regarding the advances, challenges, and new directions in the field of endophyte-assisted phytoremediation technology.
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Affiliation(s)
- Nai-Xian Feng
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, School of Environment, Jinan University, Guangzhou 510632, China
| | - Jiao Yu
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, School of Environment, Jinan University, Guangzhou 510632, China
| | - Hai-Ming Zhao
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, School of Environment, Jinan University, Guangzhou 510632, China
| | - Yu-Ting Cheng
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, School of Environment, Jinan University, Guangzhou 510632, China
| | - Ce-Hui Mo
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, School of Environment, Jinan University, Guangzhou 510632, China.
| | - Quan-Ying Cai
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, School of Environment, Jinan University, Guangzhou 510632, China
| | - Yan-Wen Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, School of Environment, Jinan University, Guangzhou 510632, China
| | - Hui Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, School of Environment, Jinan University, Guangzhou 510632, China
| | - Ming-Hung Wong
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, School of Environment, Jinan University, Guangzhou 510632, China; Consortium on Health, Environment, Education and Research (CHEER), Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong, China
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Ijaz A, Iqbal Z, Afzal M. Remediation of sewage and industrial effluent using bacterially assisted floating treatment wetlands vegetated with Typha domingensis. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 74:2192-2201. [PMID: 27842039 DOI: 10.2166/wst.2016.405] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This investigation reports the quantitative assessment of endophyte-assisted floating treatment wetlands (FTWs) for the remediation of sewage and industrial wastewater. Typha domingensis was used to vegetate FTWs that were subsequently inoculated with a consortium of pollutant-degrading and plant growth-promoting endophytic bacteria. T. domingensis, being an aquatic species, holds excellent potential to remediate polluted water. Nonetheless, investigation conducted on Madhuana drain carrying industrial and sewage water from Faisalabad City revealed the percentage reduction in chemical oxygen demand (COD) and biochemical oxygen demand (BOD5) to be 87% and 87.5%, respectively, within 96 h on coupling the plant species with a consortium of bacterial endophytes. With the endophytes surviving in plant tissue, maximal reduction was obtained in not only the aforementioned pollution parameters but for other major environmental quality parameters including nutrients (N and P), ions (Na+ and K+), Cl-, and SO42- as well, which showed percentage reductions up to 90%, 39%, 77%, 91.8%, 40%, and 60%, respectively. This significant improvement in polluted wastewater quality treated with the proposed method render it safe to be discharged freely in larger water bodies as per the National Environmental Quality Standards (NEQS) of Pakistan or to be reused safely for irrigation purposes; thus, FTWs provide a sustainable and affordable approach for in situ remediation of sewage and industrial wastewater.
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Affiliation(s)
- Amna Ijaz
- Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan E-mail: ; ; Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan
| | - Zafar Iqbal
- Nuclear Institute for Agriculture and Biology, Jhang Road, Faisalabad, Pakistan
| | - Muhammad Afzal
- Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan E-mail: ;
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Syranidou E, Christofilopoulos S, Gkavrou G, Thijs S, Weyens N, Vangronsveld J, Kalogerakis N. Exploitation of Endophytic Bacteria to Enhance the Phytoremediation Potential of the Wetland Helophyte Juncus acutus. Front Microbiol 2016; 7:1016. [PMID: 27458433 PMCID: PMC4930943 DOI: 10.3389/fmicb.2016.01016] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 06/15/2016] [Indexed: 12/30/2022] Open
Abstract
This study investigated the potential of indigenous endophytic bacteria to improve the efficiency of the wetland helophyte Juncus acutus to deal with a mixed pollution consisting of emerging organic contaminants (EOCs) and metals. The beneficial effect of bioaugmentation with selected endophytic bacteria was more prominent in case of high contamination: most of the inoculated plants (especially those inoculated with the mixed culture) removed higher percentages of organics and metals from the liquid phase in shorter times compared to the non-inoculated plants without exhibiting significant oxidative stress. When exposed to the lower concentrations, the tailored mixed culture enhanced the performance of the plants to decrease the organics and metals from the water. The composition of the root endophytic community changed in response to increased levels of contaminants while the inoculated bacteria did not modify the community structure. Our results indicate that the synergistic relationships between endophytes and the macrophyte enhance plants’ performance and may be exploited in constructed wetlands treating water with mixed contaminations. Taking into account that the concentrations of EOCs used in this study are much higher than the average contents of typical wastewaters, we can conclude that the macrophyte J. acutus with the aid of a mixed culture of tailored endophytic bacteria represents a suitable environmentally friendly alternative for treating pharmaceuticals and metals.
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Affiliation(s)
- Evdokia Syranidou
- School of Environmental Engineering, Technical University of CreteChania, Greece; Centre for Environmental Sciences, Hasselt UniversityDiepenbeek, Belgium
| | | | - Georgia Gkavrou
- School of Environmental Engineering, Technical University of Crete Chania, Greece
| | - Sofie Thijs
- Centre for Environmental Sciences, Hasselt University Diepenbeek, Belgium
| | - Nele Weyens
- Centre for Environmental Sciences, Hasselt University Diepenbeek, Belgium
| | - Jaco Vangronsveld
- Centre for Environmental Sciences, Hasselt University Diepenbeek, Belgium
| | - Nicolas Kalogerakis
- School of Environmental Engineering, Technical University of Crete Chania, Greece
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