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Zhang H, Nie M, Du X, Chen S, Liu H, Wu C, Tang Y, Lei Z, Shi G, Zhao X. Selenium and Bacillus proteolyticus SES increased Cu-Cd-Cr uptake by ryegrass: highlighting the significance of key taxa and soil enzyme activity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:29113-29131. [PMID: 38568308 DOI: 10.1007/s11356-024-32959-x] [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: 10/25/2023] [Accepted: 03/13/2024] [Indexed: 04/24/2024]
Abstract
Many studies have focused their attention on strategies to improve soil phytoremediation efficiency. In this study, a pot experiment was carried out to investigate whether Se and Bacillus proteolyticus SES promote Cu-Cd-Cr uptake by ryegrass. To explore the effect mechanism of Se and Bacillus proteolyticus SES, rhizosphere soil physiochemical properties and rhizosphere soil bacterial properties were determined further. The findings showed that Se and Bacillus proteolyticus SES reduced 23.04% Cu, 36.85% Cd, and 9.85% Cr from the rhizosphere soil of ryegrass. Further analysis revealed that soil pH, organic matter, soil enzyme activities, and soil microbial properties were changed with Se and Bacillus proteolyticus SES application. Notably, rhizosphere key taxa (Bacteroidetes, Actinobacteria, Firmicutes, Patescibacteria, Verrucomicrobia, Chloroflexi, etc.) were significantly enriched in rhizosphere soil of ryegrass, and those taxa abundance were positively correlated with soil heavy metal contents (P < 0.01). Our study also demonstrated that in terms of explaining variations of soil Cu-Cd-Cr content under Se and Bacillus proteolyticus SES treatment, soil enzyme activities (catalase and acid phosphatase) and soil microbe properties showed 42.5% and 12.2% contributions value, respectively. Overall, our study provided solid evidence again that Se and Bacillus proteolyticus SES facilitated phytoextraction of soil Cu-Cd-Cr, and elucidated the effect of soil key microorganism and chemical factor.
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Affiliation(s)
- Huan Zhang
- College of Resources and Environment, Huazhong Agricultural University / Research Center of Trace Elements, Wuhan, 430070, China
- Key Laboratory of Se-Enriched Products Development and Quality Control, Ministry of Agriculture and Rural Affairs/ National-Local Joint Engineering Laboratory of Se-Enriched Food Development, Ankang, 725000, China
| | - Min Nie
- College of Resources and Environment, Huazhong Agricultural University / Research Center of Trace Elements, Wuhan, 430070, China
| | - Xiaoping Du
- Key Laboratory of Se-Enriched Products Development and Quality Control, Ministry of Agriculture and Rural Affairs/ National-Local Joint Engineering Laboratory of Se-Enriched Food Development, Ankang, 725000, China
| | - Suhua Chen
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization (Nanchang Hangkong University), Nanchang, 330063, China
| | - Hanliang Liu
- Key Laboratory of Geochemical Exploration, Institute of Geophysical and Geochemical Exploration, CAGS, Langfang, 065000, Hebei, China
| | - Chihhung Wu
- Fujian Provincial Key Laboratory of Resources and Environment Monitoring & Sustainable Management and Utilization, Sanming University, Sanming, 365004, China
| | - Yanni Tang
- College of Resources and Environment, Huazhong Agricultural University / Research Center of Trace Elements, Wuhan, 430070, China
| | - Zheng Lei
- College of Resources and Environment, Huazhong Agricultural University / Research Center of Trace Elements, Wuhan, 430070, China
| | - Guangyu Shi
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Xiaohu Zhao
- College of Resources and Environment, Huazhong Agricultural University / Research Center of Trace Elements, Wuhan, 430070, China.
- Key Laboratory of Se-Enriched Products Development and Quality Control, Ministry of Agriculture and Rural Affairs/ National-Local Joint Engineering Laboratory of Se-Enriched Food Development, Ankang, 725000, China.
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Maphuhla NG, Lewu FB, Oyedeji OO. Enzyme Activities in Reduction of Heavy Metal Pollution from Alice Landfill Site in Eastern Cape, South Africa. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12054. [PMID: 36231352 PMCID: PMC9565107 DOI: 10.3390/ijerph191912054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/06/2021] [Accepted: 11/09/2021] [Indexed: 06/16/2023]
Abstract
Heavy metals are unbreakable, and most of them are poisonous to animals and people. Metals are particularly concerning among environmental contaminants since they are less apparent, have extensive effects on ecosystems, are poisonous, and bioaccumulate in ecosystems, biological tissues, and organs. Therefore, there is a need to use biological agents and phytoremediation processes such as enzymes because they have a high potential for effectively transforming and detoxifying polluting substances. They can convert pollutants at a detectable rate and are potentially suitable for restoring polluted environments. We investigated heavy metal concentrations in different soil samples collected in four sections in Alice and determined the enzyme activity levels present in the soil. The Pearson correlation analysis was conducted to check whether there was any relationship between heavy metal concentrations and enzyme activities in the soil. Samples were randomly collected in three weeks, and the microwave digestion method was used for sample treatment and preparation. Quantitation was achieved by inductively coupled plasma mass spectrometry (ICP-MS). The enzyme assay through incubation method was implemented for discovering the four selected enzymes (urease, invertase, catalase, and phosphatase), and their activity levels were examined colorimetrically by colorimetry spectrophotometer. The ICP-MS results revealed 16 predominating elements, namely: Al, Ba, Ca, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Sr, and Zn, and the presence of a non-mental, which is phosphorus (P), and a metalloid in the form of silicon (Si) in all soil samples. Significant differences in metal concentrations were observed among the collection sites. The Al, Fe, K, Mg, and Ca concentrations were above WHO's permissible limits. While Ba, Mn, Na, and P were in moderate concentration, Cu, Cr, Co, Zn, Sr, and Ni were in small amounts recorded mostly below the permissible values from WHO. Four soil enzyme activities were determined successfully (urease, invertase, phosphatase, and catalase). A negative non-significant correlation existed between urease, invertase, phosphatase enzyme activity, and the concentration levels of all selected metals (Al, Ba, Ca, Co, Cu, Fe, K, Mg, Mn, Na, Ni, Cr, Sr, and Zn. In contrast, the content of catalase activity was associated non-significantly but positively with the range of selected heavy metals. This study suggests proper monitoring of residences' areas, which can provide detailed information on the impact of high heavy metal content on people's health. They are easily dispersed and can accumulate in large quantities in the soil. The necessary implementation of waste management programs will help the municipality adopt a strategy that will promote recycling programs and protect the residence health from this threat.
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Affiliation(s)
- Nontobeko Gloria Maphuhla
- Department of Chemistry, Faculty of Science and Agriculture, University of Fort Hare, Private Bag X1314, Alice 5700, South Africa
| | - Francis Bayo Lewu
- Department of Agriculture, Faculty of Applied Sciences, Wellington Campus, Cape Peninsula University of Technology, Wellington 7655, South Africa
| | - Opeoluwa Oyehan Oyedeji
- Department of Chemistry, Faculty of Science and Agriculture, University of Fort Hare, Private Bag X1314, Alice 5700, South Africa
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Bhaduri D, Sihi D, Bhowmik A, Verma BC, Munda S, Dari B. A review on effective soil health bio-indicators for ecosystem restoration and sustainability. Front Microbiol 2022; 13:938481. [PMID: 36060788 PMCID: PMC9428492 DOI: 10.3389/fmicb.2022.938481] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 06/29/2022] [Indexed: 11/30/2022] Open
Abstract
Preventing degradation, facilitating restoration, and maintaining soil health is fundamental for achieving ecosystem stability and resilience. A healthy soil ecosystem is supported by favorable components in the soil that promote biological productivity and provide ecosystem services. Bio-indicators of soil health are measurable properties that define the biotic components in soil and could potentially be used as a metric in determining soil functionality over a wide range of ecological conditions. However, it has been a challenge to determine effective bio-indicators of soil health due to its temporal and spatial resolutions at ecosystem levels. The objective of this review is to compile a set of effective bio-indicators for developing a better understanding of ecosystem restoration capabilities. It addresses a set of potential bio-indicators including microbial biomass, respiration, enzymatic activity, molecular gene markers, microbial metabolic substances, and microbial community analysis that have been responsive to a wide range of ecosystem functions in agricultural soils, mine deposited soil, heavy metal contaminated soil, desert soil, radioactive polluted soil, pesticide polluted soil, and wetland soils. The importance of ecosystem restoration in the United Nations Sustainable Development Goals was also discussed. This review identifies key management strategies that can help in ecosystem restoration and maintain ecosystem stability.
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Affiliation(s)
- Debarati Bhaduri
- ICAR-National Rice Research Institute, Cuttack, India
- *Correspondence: Debarati Bhaduri
| | - Debjani Sihi
- Department of Environmental Sciences, Emory University, Atlanta, GA, United States
| | - Arnab Bhowmik
- Department of Natural Resources and Environmental Design, North Carolina Agricultural and Technical State University, Greensboro, NC, United States
- Arnab Bhowmik
| | - Bibhash C. Verma
- Central Rainfed Upland Rice Research Station (ICAR-NRRI), Hazaribagh, India
| | | | - Biswanath Dari
- Agriculture and Natural Resources, Cooperative Extension at North Carolina Agricultural and Technical State University, Greensboro, NC, United States
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Ishtiaq M, Hussain I, Bhatti KH, Maqbool M, Shafique Ahmed K, Ajaib M, ullah Shah A, Mushtaq W, Hussain T, Ghani A, Khanum H, Waqas Mazhar M, Mazhar M, Sardar T, Nasif O, Javed Ansari M, Ondrisik P. Study of impacts of brickkiln emanations on soil quality of agriculture lands in selected areas of District Bhimber, Azad Jammu and Kashmir, Pakistan. PLoS One 2022; 17:e0258438. [PMID: 35148326 PMCID: PMC8836308 DOI: 10.1371/journal.pone.0258438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 09/27/2021] [Indexed: 11/19/2022] Open
Abstract
The pollution is hot issue of current era in world and the current study was carried to explore impacts of brickkilns' emanations on physiochemical properties of agricultural lands from District Bhimber of Azad Jammu and Kashmir (AJK) Pakistan. In this research, various edaphic characteristics: pH, soil organic matter, organic carbon, water holding capacity, cation exchange capacity and heavy metal contamination in soils nearby of brickkilns were determined. The pH of soil ranged from 5.55 to 7.50, soil organic matter was 0.35-0.90% and organic carbon content was 0.65-1.40%. The water holding capacity ranged from 2.10 to 3.20 mgL-1 and carbon exchange capacity was 1250 to 4202 meq/100g. The contamination profile of heavy metal depicted that Pb showed highest conc. 0.065 mg/g followed by Co (0.053 mg/g) and Ni with 0.52 mg/g in the soil. Pb and Cr had high conc. in soil samples around brickkilns due to burning of coal and rubber tyres as fuel. The conc. of sulphate and nitrate ranged from 0.90±0.50 mol L-1 to 4.25±0.65 mol L-1 and 2.30±0.50 mol L-1 to 6.55±0.25 mol L-1, respectively. The fertility of agriculture lands was depicted that edaphic properties were directly related while nutritive features were inversely commensurate to distance from brickkilns. The research proved that emanations of brickkilns causes severe impact on quality of agriculture land, plant growth and its yield. Hence, reclamation measures should be taken to mitigate and/or eradicate nuisance of brickkilns emanations by using environmental friendly strategies.
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Affiliation(s)
- Muhammad Ishtiaq
- Department of Botany, Mirpur University of Science & Technology (MUST), Mirpur, Azad Jammu and Kashmir, Pakistan
- * E-mail:
| | - Iqbal Hussain
- Department of Botany, Government College University Faisalabad, Faisalabad, Pakistan
| | | | - Mehwish Maqbool
- Department of Botany, Mirpur University of Science & Technology (MUST), Mirpur, Azad Jammu and Kashmir, Pakistan
| | | | - Muhammad Ajaib
- Department of Botany, Mirpur University of Science & Technology (MUST), Mirpur, Azad Jammu and Kashmir, Pakistan
| | - Amin ullah Shah
- Department of Botany, Sargodha University, Sargodha, Pakistan
| | - Waheeda Mushtaq
- Department of Botany, Mirpur University of Science & Technology (MUST), Mirpur, Azad Jammu and Kashmir, Pakistan
| | - Tanveer Hussain
- Department of Botany, Mirpur University of Science & Technology (MUST), Mirpur, Azad Jammu and Kashmir, Pakistan
| | - Abdul Ghani
- Department of Botany, Sargodha University, Sargodha, Pakistan
| | - Humaira Khanum
- Department of Botany, Mirpur University of Science & Technology (MUST), Mirpur, Azad Jammu and Kashmir, Pakistan
| | - Muhammad Waqas Mazhar
- Department of Botany, Mirpur University of Science & Technology (MUST), Mirpur, Azad Jammu and Kashmir, Pakistan
| | - Mubashir Mazhar
- Department of Botany, Mirpur University of Science & Technology (MUST), Mirpur, Azad Jammu and Kashmir, Pakistan
| | - Tauqeer Sardar
- Department of Botany, Mirpur University of Science & Technology (MUST), Mirpur, Azad Jammu and Kashmir, Pakistan
| | - Omaima Nasif
- Department of Physiology, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, Riyadh, Saudi Arabia
| | - Mohammad Javed Ansari
- Department of Botany, Hindu College Moradabad (Mahatma Jyotiba Phule Rohilkhand University Bareilly), Moradabad, India
| | - Peter Ondrisik
- Department of Environmental Sciences and Biology, Slovak Agricultural University, Nitra, Slovakia
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Sheteiwy MS, Ali DFI, Xiong YC, Brestic M, Skalicky M, Hamoud YA, Ulhassan Z, Shaghaleh H, AbdElgawad H, Farooq M, Sharma A, El-Sawah AM. Physiological and biochemical responses of soybean plants inoculated with Arbuscular mycorrhizal fungi and Bradyrhizobium under drought stress. BMC PLANT BIOLOGY 2021; 21:195. [PMID: 33888066 PMCID: PMC8061216 DOI: 10.1186/s12870-021-02949-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/22/2021] [Indexed: 05/12/2023]
Abstract
BACKGROUND The present study aims to study the effects of biofertilizers potential of Arbuscular Mycorrhizal Fungi (AMF) and Bradyrhizobium japonicum (B. japonicum) strains on yield and growth of drought stressed soybean (Giza 111) plants at early pod stage (50 days from sowing, R3) and seed development stage (90 days from sowing, R5). RESULTS Highest plant biomass, leaf chlorophyll content, nodulation, and grain yield were observed in the unstressed plants as compared with water stressed-plants at R3 and R5 stages. At soil rhizosphere level, AMF and B. japonicum treatments improved bacterial counts and the activities of the enzymes (dehydrogenase and phosphatase) under well-watered and drought stress conditions. Irrespective of the drought effects, AMF and B. japonicum treatments improved the growth and yield of soybean under both drought (restrained irrigation) and adequately-watered conditions as compared with untreated plants. The current study revealed that AMF and B. japonicum improved catalase (CAT) and peroxidase (POD) in the seeds, and a reverse trend was observed in case of malonaldehyde (MDA) and proline under drought stress. The relative expression of the CAT and POD genes was up-regulated by the application of biofertilizers treatments under drought stress condition. Interestingly a reverse trend was observed in the case of the relative expression of the genes involved in the proline metabolism such as P5CS, P5CR, PDH, and P5CDH under the same conditions. The present study suggests that biofertilizers diminished the inhibitory effect of drought stress on cell development and resulted in a shorter time for DNA accumulation and the cycle of cell division. There were notable changes in the activities of enzymes involved in the secondary metabolism and expression levels of GmSPS1, GmSuSy, and GmC-INV in the plants treated with biofertilizers and exposed to the drought stress at both R3 and R5 stages. These changes in the activities of secondary metabolism and their transcriptional levels caused by biofertilizers may contribute to increasing soybean tolerance to drought stress. CONCLUSIONS The results of this study suggest that application of biofertilizers to soybean plants is a promising approach to alleviate drought stress effects on growth performance of soybean plants. The integrated application of biofertilizers may help to obtain improved resilience of the agro ecosystems to adverse impacts of climate change and help to improve soil fertility and plant growth under drought stress.
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Affiliation(s)
- Mohamed S Sheteiwy
- Department of Agronomy, Faculty of Agriculture, Mansoura University, Mansoura, 35516, Egypt.
- Salt-Soil Agricultural Center, Institute of Agriculture Resources and Environment, Jiangsu Academy of Agricultural Sciences (JAAS), Nanjing, 210014, China.
| | - Dina Fathi Ismail Ali
- Department of Agricultural Microbiology, Faculty of Agriculture, Mansoura University, Mansoura, 35516, Egypt
| | - You-Cai Xiong
- State Key Laboratory of Grassland Agro-ecosystems, Institute of Arid Agroecology, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Marian Brestic
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 16500, Prague, Czech Republic
- Department of Plant Physiology, Slovak University of Agriculture, 94911, Nitra, Slovakia
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 16500, Prague, Czech Republic
| | - Yousef Alhaj Hamoud
- College of Agricultural Science and Engineering, Hohai University, Nanjing, China
| | - Zaid Ulhassan
- Institute of Crop Science and Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Hiba Shaghaleh
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Hamada AbdElgawad
- Department of Botany, Faculty of Science, University of Beni-Suef, Beni-Suef, 62511, Egypt
| | - Muhammad Farooq
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, 123, Al-Khoud, Oman
| | - Anket Sharma
- State Key Laboratory of Silviculture, Zhejiang A&F University, Hangzhou, China
| | - Ahmed M El-Sawah
- Department of Agricultural Microbiology, Faculty of Agriculture, Mansoura University, Mansoura, 35516, Egypt.
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The Integration of Bio and Organic Fertilizers Improve Plant Growth, Grain Yield, Quality and Metabolism of Hybrid Maize (Zea mays L.). AGRONOMY-BASEL 2020. [DOI: 10.3390/agronomy10030319] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Expanding eco-friendly approaches to improve plant growth and crop productivity is of great important for sustainable agriculture. Therefore, a field experiment was carried out at the Faculty of Agriculture Farm, Mansoura University, Egypt during the 2018 and 2019 growing seasons to study the effects of different bio- and organic fertilizers and their combination on hybrid maize growth, yield, and grain quality. Seeds were treated with Azotobacter chrocoocum, arbuscular mycorrhizal fungi (AMF), Bacillus circulans, biogas slurry, humic acid (HA), and their combination aiming to increase the growth and yield of maize and to reduce the need for chemical fertilizers. The results showed that combined application of the biofertilizer mixture (Azotobacter chrocoocum, AMF, and Bacillus circulans) with organic fertilizers enhanced maize growth, yield, and nutrient uptake. Moreover, the bio-organic fertilization has improved the soluble sugars, starch, carbohydrates, protein, and amino acid contents in maize seeds. Additionally, the bio-organic fertilization caused an obvious increase in the microbial activity by enhancing acid phosphatase and dehydrogenase enzymes, bacterial count, and mycorrhizal colonization levels in maize rhizosphere as compared with the chemical fertilization. Additionally, the bio-organic fertilizers has improved α-amylase and gibberellins (GA) activities and their transcript levels, as well as decreased the abscisic acid (ABA) level in the seeds as compared to the chemical fertilizers. The obtained results of bio-organic fertilization on the growth parameters and yield of maize recommend their use as an alternative tool to reduce chemical fertilizers.
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Xiao S, Zhang Q, Chen X, Dong F, Chen H, Liu M, Ali I. Speciation Distribution of Heavy Metals in Uranium Mining Impacted Soils and Impact on Bacterial Community Revealed by High-Throughput Sequencing. Front Microbiol 2019; 10:1867. [PMID: 31456781 PMCID: PMC6700481 DOI: 10.3389/fmicb.2019.01867] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 07/29/2019] [Indexed: 11/30/2022] Open
Abstract
This study investigated the influence of heavy metals on bacterial community structure in a uranium mine. Soils from three differently polluted ditches (Yangchang ditch, Zhongchang ditch, and Sulimutang ditche) were collected from Zoige County, Sichuan province, China. Soil physicochemical properties and heavy metal concentrations were measured. Differences between bacterial communities were investigated using the high-throughput sequencing of the 16S rRNA genes. The obtained results demonstrated that bacterial richness index (Chao and Ace) were similar among three ditches, while the highest bacterial diversity index was detected in the severely contaminated soils. The compositions of bacterial communities varied among three examined sites, but Proteobacteria and Acidobacteria were abundant in all samples. Redundancy analysis revealed that soil organic matter, Cr and pH were the three major factors altering the bacterial community structure. Pearson correlation analysis indicated that the most significant correlations were observed between the contents of non-residual Cr and the abundances of bacterial genera, including Thiobacillus, Nitrospira, and other 10 genera. Among them, the abundances of Sphingomonas and Pseudomonas were significant and positively correlated with the concentrations of non-residual U and As. The results highlighted the factors influencing the bacterial community in uranium mines and contributed a better understanding of the effects of heavy metals on bacterial community structure by considering the fraction of heavy metals.
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Affiliation(s)
- Shiqi Xiao
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, China.,National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, China
| | - Qian Zhang
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, China.,National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, China
| | - Xiaoming Chen
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, China.,National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, China.,State Key Laboratory of NBC Protection for Civilian, Beijing, China
| | - Faqin Dong
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, China
| | - Hao Chen
- Sichuan Institute of Atomic Energy, Chengdu, China
| | - Mingxue Liu
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, China
| | - Imran Ali
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, China.,Institute of Biochemistry, University of Balochistan, Quetta, Pakistan
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Effect of Liming with Various Water Regimes on Both Immobilization of Cadmium and Improvement of Bacterial Communities in Contaminated Paddy: A Field Experiment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16030498. [PMID: 30754673 PMCID: PMC6388227 DOI: 10.3390/ijerph16030498] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 01/30/2019] [Accepted: 01/31/2019] [Indexed: 12/17/2022]
Abstract
Cadmium (Cd) in paddy soil is one of the most harmful potentially toxic elements threatening human health. In order to study the effect of lime combined with intermittent and flooding conditions on the soil pH, Cd availability and its accumulation in tissues at the tillering, filling and maturity stages of rice, as well as enzyme activity and the microbial community in contaminated soil, a field experiment was conducted. The results showed that liming under flooding conditions is a more suitable strategy for in situ remediation of Cd-contaminated paddy soil than intermittent conditions. The availability of Cd in soils was closely related to the duration of flooding. Liming was an effective way at reducing available Cd in flooding soil because it promotes the transformation of Cd in soil from acid-extractable to reducible fraction or residual fraction during the reproductive growth period of rice. Compared with control, after liming, the concentration of Cd in brown rice was reduced by 34.9% under intermittent condition while reduced by 55.8% under flooding condition. Meanwhile, phosphatase, urease, and invertase activities in soil increased by 116.7%, 61.4% and 28.8%, and 41.3%, 46.5% and 20.8%, respectively. The high urease activity in tested soils could be used to assess soil recovery with liming for the remediation of contaminated soil. Soil microbial diversity was determined by the activities of soil acid phosphatase, urease and available Cd by redundancy analysis (RDA). The results indicated that the problem of Cd-contaminated paddy soil could achieve risk control of agricultural planting by chemical treatment such as lime, combined with various water regimes.
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Kaurin A, Lestan D. Multi-substrate induced microbial respiration, nitrification potential and enzyme activities in metal-polluted, EDTA-washed soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:238-245. [PMID: 30176497 DOI: 10.1016/j.envpol.2018.08.079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/25/2018] [Accepted: 08/23/2018] [Indexed: 06/08/2023]
Abstract
Efficiency and the preservation of soil functions are key requirements for sustainable remediation of contaminated soil. Microbial decomposition and conversion of substrates is a fundamental soil function. Pilot-scale EDTA-based soil washing recycled chelant generated no wastewater and removed 78% of Pb from acidic farmland soil with 860 mg kg-1 Pb and 60% of Pb from calcareous garden soil with 1030 mg kg-1 Pb. Remediation had an insignificant effect on microbial respiration in acidic soil induced by sequential additions of glucose, micro-cellulose, starch and alfa-alfa sprout powder (mimicking litter components, C-cycle). In contrast, remediation of calcareous soil reduced cumulative CO2 production after glucose (simple) and alfalfa (complex substrate) addition, by up to 40%. Remediation reduced the nitrification rate (denoting the N-cycle) in acidic soil by 30% and halved nitrification in calcareous soil. Remediation in both soils slightly or positively affected dehydrogenase and β-glucosidase activity (associated with C-cycle), and decreased urease activity (N-cycle). Generally, EDTA remediation modestly interfered with substrate utilisation in acidic soil. A more prominent effect of remediation on the functioning of calcareous soil could largely be attributed to the use of a higher EDTA dose (30 vs. 100 mmol kg-1, respectively).
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Affiliation(s)
- Anela Kaurin
- University of Ljubljana, Biotechnical Faculty, Agronomy Department, Jamnikarjeva 101, 1000, Ljubljana, Slovenia
| | - Domen Lestan
- University of Ljubljana, Biotechnical Faculty, Agronomy Department, Jamnikarjeva 101, 1000, Ljubljana, Slovenia.
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10
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Mounissamy VC, Kundu S, Selladurai R, Saha JK, Biswas AK, Adhikari T, Patra AK. Effect of Soil Amendments on Microbial Resilience Capacity of Acid Soil Under Copper Stress. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 99:625-632. [PMID: 28889245 DOI: 10.1007/s00128-017-2173-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 08/29/2017] [Indexed: 06/07/2023]
Abstract
An incubation study was undertaken to study microbial resilience capacity of acid soil amended with farmyard manure (FYM), charcoal and lime under copper (Cu) perturbation. Copper stress significantly reduced enzymatic activities and microbial biomass carbon (MBC) in soil. Percent reduction in microbial activity of soil due to Cu stress was 74.7% in dehydrogenase activity, 59.9% in MBC, 48.2% in alkaline phosphatase activity and 15.1% in acid phosphatase activity. Soil treated with FYM + charcoal showed highest resistance index for enzymatic activities and MBC. Similarly, the highest resilience index for acid phosphatase activity was observed in soil amended with FYM (0.40), whereas FYM + charcoal-treated soil showed the highest resilience indices for alkaline, dehydrogenase activity and MBC: 0.50, 0.22 and 0.25, respectively. This investigation showed that FYM and charcoal application, either alone or in combination, proved to be better than lime with respect to microbial functional resistance and resilience of acid soil under Cu perturbation.
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Affiliation(s)
| | - Samaresh Kundu
- ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal, 462038, India
| | - Rajendiran Selladurai
- ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal, 462038, India
| | - Jayanta Kumar Saha
- ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal, 462038, India
| | - Ashish Kumar Biswas
- ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal, 462038, India
| | - Tapan Adhikari
- ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal, 462038, India
| | - Ashok Kumar Patra
- ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal, 462038, India
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11
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Boteva S, Radeva G, Traykov I, Kenarova A. Effects of long-term radionuclide and heavy metal contamination on the activity of microbial communities, inhabiting uranium mining impacted soils. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:5644-5653. [PMID: 26578378 DOI: 10.1007/s11356-015-5788-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 11/09/2015] [Indexed: 06/05/2023]
Abstract
Ore mining and processing have greatly altered ecosystems, often limiting their capacity to provide ecosystem services critical to our survival. The soil environments of two abandoned uranium mines were chosen to analyze the effects of long-term uranium and heavy metal contamination on soil microbial communities using dehydrogenase and phosphatase activities as indicators of metal stress. The levels of soil contamination were low, ranging from 'precaution' to 'moderate', calculated as Nemerow index. Multivariate analyses of enzyme activities revealed the following: (i) spatial pattern of microbial endpoints where the more contaminated soils had higher dehydrogenase and phosphatase activities, (ii) biological grouping of soils depended on both the level of soil contamination and management practice, (iii) significant correlations between both dehydrogenase and alkaline phosphatase activities and soil organic matter and metals (Cd, Co, Cr, and Zn, but not U), and (iv) multiple relationships between the alkaline than the acid phosphatase and the environmental factors. The results showed an evidence of microbial tolerance and adaptation to the soil contamination established during the long-term metal exposure and the key role of soil organic matter in maintaining high microbial enzyme activities and mitigating the metal toxicity. Additionally, the results suggested that the soil microbial communities are able to reduce the metal stress by intensive phosphatase synthesis, benefiting a passive environmental remediation and provision of vital ecosystem services.
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Affiliation(s)
- Silvena Boteva
- Faculty of Biology, Sofia University "St. Kl. Ohridski", 8 Dragan Tsankov Blvd, Sofia, 1164, Bulgaria
| | - Galina Radeva
- Institute of Molecular Biology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 21, Sofia, 1113, Bulgaria
| | - Ivan Traykov
- Faculty of Biology, Sofia University "St. Kl. Ohridski", 8 Dragan Tsankov Blvd, Sofia, 1164, Bulgaria
| | - Anelia Kenarova
- Faculty of Biology, Sofia University "St. Kl. Ohridski", 8 Dragan Tsankov Blvd, Sofia, 1164, Bulgaria.
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12
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Yang X, Liu J, McGrouther K, Huang H, Lu K, Guo X, He L, Lin X, Che L, Ye Z, Wang H. Effect of biochar on the extractability of heavy metals (Cd, Cu, Pb, and Zn) and enzyme activity in soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:974-84. [PMID: 25772863 DOI: 10.1007/s11356-015-4233-0] [Citation(s) in RCA: 237] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Accepted: 02/13/2015] [Indexed: 05/12/2023]
Abstract
Biochar is a carbon-rich solid material derived from the pyrolysis of agricultural and forest residual biomass. Previous studies have shown that biochar is suitable as an adsorbent for soil contaminants such as heavy metals and consequently reduces their bioavailability. However, the long-term effect of different biochars on metal extractability or soil health has not been assessed. Therefore, a 1-year incubation experiment was carried out to investigate the effect of biochar produced from bamboo and rice straw (at temperatures ≥500 °C) on the heavy metal (cadmium (Cd), copper (Cu), lead (Pb), and zinc (Zn)) extractability and enzyme activity (urease, catalase, and acid phosphatase) in a contaminated sandy loam paddy soil. Three rates (0, 1, and 5%) and two mesh sizes (<0.25 and <1 mm) of biochar applications were investigated. After incubation, the physicochemical properties, extractable heavy metals, available phosphorus, and enzyme activity of soil samples were analyzed. The results demonstrated that rice straw biochar significantly (P < 0.05) increased the pH, electrical conductivity, and cation exchange capacity of the soil, especially at the 5% application rate. Both bamboo and rice straw biochar significantly (P < 0.05) decreased the concentration of CaCl2-extractable heavy metals as biochar application rate increased. The heavy metal extractability was significantly (P < 0.01) correlated with pH, water-soluble organic carbon, and available phosphorus in soil. The 5% application rate of fine rice straw biochar resulted in the greatest reductions of extractable Cu and Zn, 97.3 and 62.2%, respectively. Both bamboo and rice straw biochar were more effective at decreasing extractable Cu and Pb than removing extractable Cd and Zn from the soil. Urease activity increased by 143 and 107% after the addition of 5% coarse and fine rice straw biochars, respectively. Both bamboo and rice straw biochars significantly (P < 0.05) increased catalase activity but had no significant impact on acid phosphatase activity. In conclusion, the rice straw biochar had greater potential as an amendment for reducing the bioavailability of heavy metals in soil than that of the bamboo biochar. The impact of biochar treatment on heavy metal extractability and enzyme activity varied with the biochar type, application rate, and particle size.
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Affiliation(s)
- Xing Yang
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Lin'an, Hangzhou, Zhejiang, 311300, China
| | - Jingjing Liu
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Lin'an, Hangzhou, Zhejiang, 311300, China
| | | | - Huagang Huang
- Yancao Production Technology Center, Bijie Yancao Company of Guizhou Province, Bijie, Guizhou, 551700, China
| | - Kouping Lu
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Lin'an, Hangzhou, Zhejiang, 311300, China.
| | - Xi Guo
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Lin'an, Hangzhou, Zhejiang, 311300, China
| | - Lizhi He
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Lin'an, Hangzhou, Zhejiang, 311300, China
| | - Xiaoming Lin
- Guangdong Dazhong Agriculture Science Co. Ltd., Hongmei Town, Dongguan, Guangdong, 523169, China
| | - Lei Che
- School of Engineering, Huzhou University, Huzhou, Zhejiang, 313000, China
| | - Zhengqian Ye
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Lin'an, Hangzhou, Zhejiang, 311300, China
| | - Hailong Wang
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Lin'an, Hangzhou, Zhejiang, 311300, China.
- Guangdong Dazhong Agriculture Science Co. Ltd., Hongmei Town, Dongguan, Guangdong, 523169, China.
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