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Phytoremediation of heavy metal

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https://www.readbyqxmd.com/read/28092006/the-efficiency-of-eichhornia-crassipes-in-the-removal-of-organic-and-inorganic-pollutants-from-wastewater-a-review
#1
Saurabh Mishra, Abhijit Maiti
Water is a basic necessity of life, but due to overextraction and heavy input of nutrients from domestic and industrial sources, the contamination level of water bodies increase. In the last few decades, a potential interest has been aroused to treat wastewater by biological methodologies before discharge into the natural water bodies. Phytoremediation using water hyacinth is found to be an effective biological wastewater treatment method. Water hyacinth (Eichhornia crassipes), a notorious weed, being the most promising plant for removal of contaminants from wastewater is studied extensively in this regard...
January 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28073642/long-term-impact-of-primary-domestic-sewage-on-metal-loid-accumulation-in-drainage-ditch-sediments-plants-and-water-implications-for-phytoremediation-and-restoration
#2
Mathieu Nsenga Kumwimba, Bo Zhu, Fidèle Suanon, Diana Kavidia Muyembe, Mawuli Dzakpasu
We evaluate the long-term performance of a vegetated drainage ditch (VDD) treating domestic sewage with respect to heavy metal/metalloid (HM/M) accumulation in sediments, plants and water. VDD sediment contained significantly higher macro and trace elements compared to an agricultural ditch (AD) sediment. However, concentrations of HM/Ms in VDD sediment were below the ranges considered toxic to plants. Most HM/Ms were efficiently removed in the VDD, whereby removal efficiencies varied between 11% for Al and 89% for K...
January 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28061428/phytoremediation-strategies-for-soils-contaminated-with-heavy-metals-modifications-and-future-perspectives
#3
REVIEW
Nadeem Sarwar, Muhammad Imran, Muhammad Rashid Shaheen, Wajid Ishaque, Muhammad Asif Kamran, Amar Matloob, Abdur Rehim, Saddam Hussain
Presence of heavy metals in agricultural soils is of major environmental concern and a great threat to life on the earth. A number of human health risks are associated with heavy metals regarding their entry into food chain. Various physical, chemical and biological techniques are being used to remove heavy metals and metalloids from soils. Among them, phytoremediation is a good strategy to harvest heavy metals from soils and have been proven as an effective and economical technique. In present review, we discussed various sources and harmful effects of some important heavy metals and metalloids, traditional phytoremediation strategies, mechanisms involved in phytoremediation of these metals, limitations and some recent advances in phytoremediation approaches...
December 23, 2016: Chemosphere
https://www.readbyqxmd.com/read/28040555/juncus-spp-the-helophyte-for-all-phyto-remediation-purposes
#4
Evdokia Syranidou, Stavros Christofilopoulos, Nicolas Kalogerakis
Helophytic plants contribute significantly to the remediation of ecosystems through a wide range of physiological or biochemical mechanisms including the role of endophytic bacteria. This review highlights the services provided by Juncus spp. wetland plants, from phytoremediation of soils and groundwater with heavy metals and/or organics to municipal or industrial wastewater treatment in constructed wetlands. The data presented also provide information on the efficiency of specific Juncus spp. in response to various metals and organic compounds, in an effort to exploit the natural capabilities of autochthonous over exotic species in phytoremediation strategies...
December 28, 2016: New Biotechnology
https://www.readbyqxmd.com/read/28038419/comparison-of-arbuscular-mycorrhizal-fungal-effects-on-the-heavy-metal-uptake-of-a-host-and-a-non-host-plant-species-in-contact-with-extraradical-mycelial-network
#5
Mejda Mnasri, Martina Janoušková, Jana Rydlová, Chedly Abdelly, Tahar Ghnaya
The effects of inoculation with an arbuscular mycorrhizal (AM) fungus on Cd and Ni tolerance and uptake in Medicago sativa, an AM host, and Sesuvium portulacastrum, a non-host plant, were investigated in a greenhouse experiment. The plants were cultivated in sterilized sand in a two-compartmented system, which prevented root competition but enabled colonization of the whole substrate by AM fungal extraradical mycelium. M. sativa was either left non-inoculated or inoculated with the AM fungus Rhizophagus irregularis, and both plants were either cultivated without heavy metal (HM) addition or supplied with cadmium (Cd) or nickel (Ni), each in two doses...
December 22, 2016: Chemosphere
https://www.readbyqxmd.com/read/28018398/cadmium-accumulation-characteristics-in-turnip-landraces-from-china-and-assessment-of-their-phytoremediation-potential-for-contaminated-soils
#6
Xiong Li, Xiaoming Zhang, Ya Yang, Boqun Li, Yuansheng Wu, Hang Sun, Yongping Yang
Heavy metal (HM) pollution is a global environmental problem that threatens ecosystem and human health. Cadmium (Cd) pollution is the most prominent HM pollution type because of its high toxicity, strong migration, and the large polluted area globally. Phytoremediation of contaminated soil is frequently practiced because of its cost-effectiveness and operability and because it has no associated secondary pollution. High-accumulation plants, including those identified as hyperaccumulators, play an important role in phytoremediation...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27958371/atmospheric-deposition-carried-zn-and-cd-from-a-zinc-smelter-and-their-effects-on-soil-microflora-as-revealed-by-16s-rdna
#7
Feng Shen, Yanxia Li, Min Zhang, Mukesh Kumar Awasthi, Amjad Ali, Ronghua Li, Quan Wang, Zengqiang Zhang
In this study, we investigated the influence of heavy metals (HM) on total soil bacterial population and its diversity pattern from 10 km distance of a Zinc smelter in Feng County, Qinling Mountain, China. We characterized and identified the bacterial community in a HM polluted soil using 16S rDNA technology. Out results indicated that the maximum soil HM concentration and the minimum bacterial population were observed in S2 soil, whereas bacterial diversity raised with the sampling distance increased. The bacterial communities were dominated by the phyla Proteobacteria, Acidobacteria and Actinobacteria in cornfield soils, except Fimicutes phylum which dominated in hilly area soil...
December 13, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27951500/phytoremediation-effect-of-scirpus-triqueter-inoculated-plant-growth-promoting-bacteria-pgpb-on-different-fractions-of-pyrene-and-ni-in-co-contaminated-soils
#8
Xiao Chen, Xiaoyan Liu, Xinying Zhang, Liya Cao, Xiaoxin Hu
At present, few reveal the mechanism of inoculation plants with PGPB to remediate PAH-metal co-contaminated soil by analyzing the chemical speciations of contaminants. This study investigated the influence of inoculation plants with PGPB on different fractions of pyrene and Ni in rhizospheric and non-rhizospheric soil. The results demonstrated that the addition of PGPB brought the extensive increase of FDA activities in pyrene-Ni co-contaminated soil. PGPB increased the resistance of plants in nickel and pyrene-Ni contaminated soil, but decreased the plant biomass in single pyrene contaminated soil...
March 5, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27930707/native-phytoremediation-potential-of-urtica-dioica-for-removal-of-pcbs-and-heavy-metals-can-be-improved-by-genetic-manipulations-using-constitutive-camv-35s-promoter
#9
Jitka Viktorova, Zuzana Jandova, Michaela Madlenakova, Petra Prouzova, Vilem Bartunek, Blanka Vrchotova, Petra Lovecka, Lucie Musilova, Tomas Macek
Although stinging nettle (Urtica dioica) has been shown to reduce HM (heavy metal) content in soil, its wider phytoremediation potential has been neglected. Urtica dioica was cultivated in soils contaminated with HMs or polychlorinated biphenyls (PCBs). After four months, up to 33% of the less chlorinated biphenyls and 8% of HMs (Zn, Pb, Cd) had been removed. Bacteria were isolated from the plant tissue, with the endophytic bacteria Bacillus shackletonii and Streptomyces badius shown to have the most significant effect...
2016: PloS One
https://www.readbyqxmd.com/read/27928750/phytoextraction-of-arsenic-contaminated-soil-with-pteris-vittata-in-henan-province-china-comprehensive-evaluation-of-remediation-efficiency-correcting-for-atmospheric-depositions
#10
Mei Lei, Xiaoming Wan, Guanghui Guo, Junxing Yang, Tongbin Chen
Research on the appropriate method for evaluating phytoremediation efficiency is limited. A 2-year field experiment was conducted to investigate phytoremediation efficiency using the hyperaccumulator Pteris vittata on an arsenic (As)-contaminated site. The remediation efficiency was evaluated through the removal rate of As in soils and extraction rate of heavy metals in plants. After 2 years of remediation, the concentration of total As in soils decreased from 16.27 mg kg(-1) in 2012 to 14.58 mg kg(-1) in 2014...
December 7, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27888434/a-novel-heavy-metal-atpase-peptide-from-prosopis-juliflora-is-involved-in-metal-uptake-in-yeast-and-tobacco
#11
Nisha S Keeran, G Ganesan, Ajay K Parida
Heavy metal pollution of agricultural soils is one of the most severe ecological problems in the world. Prosopis juliflora, a phreatophytic tree species, grows well in heavy metal laden industrial sites and is known to accumulate heavy metals. Heavy Metal ATPases (HMAs) are ATP driven heavy metal pumps that translocate heavy metals across biological membranes thus helping the plant in heavy metal tolerance and phytoremediation. In the present study we have isolated and characterized a novel 28.9 kDa heavy metal ATPase peptide (PjHMT) from P...
November 25, 2016: Transgenic Research
https://www.readbyqxmd.com/read/27882491/influence-of-phosphorous-fertilization-on-copper-phytoextraction-and-antioxidant-defenses-in-castor-bean-ricinus-communis-l
#12
Guoyong Huang, Muhammad Shahid Rizwan, Chao Ren, Guangguang Guo, Qingling Fu, Jun Zhu, Hongqing Hu
Application of fertilizers to supply appropriate nutrients has become an essential agricultural strategy for enhancing the efficiency of phytoremediation in heavy metal contaminated soils. The present study was conducted to investigate the beneficial effects of three types of phosphate fertilizers (i.e., oxalic acid-activated phosphate rock (APR), Ca(H2PO4)2, and NaH2PO4) in the range of 0-600 mg P kg(-1) soil, on castor bean growth, antioxidants [antioxidative enzymes and glutathione (GSH)], and Cu uptake...
November 23, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27866363/comparative-of-quercus-spp-and-salix-spp-for-phytoremediation-of-pb-zn-mine-tailings
#13
Xiang Shi, Shufeng Wang, Haijing Sun, Yitai Chen, Dongxue Wang, Hongwei Pan, Yazhu Zou, Jianfeng Liu, Linyu Zheng, Xiulian Zhao, Zeping Jiang
A pot experiment was conducted to evaluate the feasibility of using tree seedlings for the phytoremediation of lead/zinc (Pb/Zn) mine tailings. Seedlings of three Quercus spp. (Q. shumardii, Q. phellos, and Q. virginiana) and rooted cuttings of two Salix spp. (S. matsudana and S. integra) were transplanted into pots containing 50 and 100 % Pb/Zn mine tailings to evaluate their tolerance of heavy metals. The five species showed different tolerance levels to the Pb/Zn tailings treatments. Q. virginiana was highly tolerant to heavy metals and grew normally in the Pb/Zn tailings...
November 19, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27864737/significance-of-diazotrophic-plant-growth-promoting-herbaspirillum-sp-gw103-on-phytoextraction-of-pband-zn-by-zea-mays-l
#14
Loganathan Praburaman, Sung-Hee Park, Min Cho, Kui-Jae Lee, Jeong-Ae Ko, Sang-Sub Han, Sang-Hyun Lee, Seralathan Kamala-Kannan, Byung-Taek Oh
Microbe-assisted phytoremediation has been considered a promising measure for the remediation of heavy metal-polluted soil. The aim of this study was to assess the effect of diazotrophic plant growth-promoting Herbaspirillum sp. GW103 on growth and lead (Pb) and zinc (Zn) accumulation in Zea mays L. The strain GW103 exhibited plant growth-promoting traits such as indole-3-acetic acid, siderophores, and 1-aminocyclopropane-1-carboxylic deaminase. Treatment of Z. mays L. plants with GW103 significantly increased 19, 31, and 52% of plant biomass and 10, 50, and 126% of chlorophyll a contents in Pb, Zn, and Pb + Zn-amended soils, respectively...
November 18, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27858338/value-added-phytoremediation-of-metal-stressed-soils-using-phosphate-solubilizing-microbial-consortium
#15
REVIEW
Pratishtha Gupta, Vipin Kumar
The presence of heavy metals in the soil is a matter of growing concern due to their toxic and non-biodegradable nature. Lack of effectiveness of various conventional methods due to economic and technical constraints resulted in the search for an eco-friendly and cost-effective biological techniques for heavy metal removal from the environment. Until now, phytoremediation has emerged as an innovative technique to address the problem. However, the efficiency of phytoremediation process is hindered under the high metal concentration conditions...
January 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/27854061/metal-resistant-rhizobacteria-isolates-improve-mucuna-deeringiana-phytoextraction-capacity-in-multi-metal-contaminated-soils-from-a-gold-mining-area
#16
Cácio Luiz Boechat, Patricia Giovanella, Magno Batista Amorim, Enilson Luiz Saccol de Sá, Flávio Anastácio de Oliveira Camargo
Phytoremediation consists of biological techniques for heavy metal remediation, which include exploring the genetic package of vegetable species to remove heavy metals from the environment. The goals of this study were to investigate heavy metal and bioaugmentation effects on growth and nutrient uptake by Mucuna deeringiana; to determine the metal translocation factor and bioconcentration factor and provide insight for using native bacteria to enhance heavy metal accumulation. The experiment was conducted under greenhouse conditions using a 2 × 4 factorial scheme with highly and slightly contaminated soil samples and inoculating M...
November 16, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27826829/phytoextraction-of-heavy-metals-by-potential-native-plants-and-their-microscopic-observation-of-root-growing-on-stabilised-distillery-sludge-as-a-prospective-tool-for-in-situ-phytoremediation-of-industrial-waste
#17
Ram Chandra, Vineet Kumar
The safe disposal of post-methanated distillery sludge (PMDS) in the environment is challenging due to high concentrations of heavy metals along with other complex organic pollutants. The study has revealed that PMDS contained high amounts of Fe (2403), Zn (210), Mn (126), Cu (73.62), Cr (21.825), Pb (16.33) and Ni (13.425 mg kg(-1)) along with melanoidins and other co-pollutants. The phytoextraction pattern in 15 potential native plants growing on sludge showed that the Blumea lacera, Parthenium hysterophorous, Setaria viridis, Chenopodium album, Cannabis sativa, Basella alba, Tricosanthes dioica, Amaranthus spinosus L...
November 8, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27823781/native-herbaceous-plant-species-with-potential-use-in-phytoremediation-of-heavy-metals-spotlight-on-wetlands-a-review
#18
REVIEW
Mayerly Alexandra Oyuela Leguizamo, Wilmar Darío Fernández Gómez, Martha Cecilia Gutiérrez Sarmiento
Soil, air and water pollution caused by the mobility and solubility of heavy metals significantly damages the environment, human health, plants and animals. One common in situ method used for the decontamination of heavy metals is phytoremediation. This usually involves the use of exotic species. However, these species may exhibit invasive behavior, thereby, affect the environmental and ecological dynamics of the ecosystem into which they are introduced. This paper focuses on some native herbaceous plant species reported on the wetlands of Bogota, Colombia, with potential use in phytoremediation of heavy metals...
February 2017: Chemosphere
https://www.readbyqxmd.com/read/27819494/impact-of-chelators-induced-phytoextraction-of-cadmium-on-yield-and-ionic-uptake-of-maize
#19
Sumera Anwar, Shahbaz Khan, M Yasin Ashraf, Sana Ullah Baloch, Sara Zafar, Ali Noman
Enhanced phytoextraction uses soil chelators to increase the bioavailability of heavy metals. This study tested the effectiveness of ethylenediaminetetraaceticacid (EDTA) and citric acid in enhancing cadmium (Cd) phytoextraction, and their effects on the growth, yield, and ionic uptake of maize (Zea mays). Maize seeds of two cultivars were sown in pots treated with 15 (Cd15) or 30 mg Cd kg(-1) soil (Cd30). EDTA and citric acid at 0.5 g kg(-1) each were applied 2 weeks after germination. Results demonstrated that the growth, yield per plant, and total grain weight was reduced by exposure to Cd...
November 7, 2016: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/27819493/effect-of-pseudomonas-fluorescens-rb4-and-bacillus-subtilis-189-on-the-phytoremediation-potential-of-catharanthus-roseus-l-in-cu-and-pb-contaminated-soils
#20
Waheed Ullah Khan, Sajid Rashid Ahmad, Nasim Ahmad Yasin, Aamir Ali, Aqeel Ahmad
The remediation of heavy metal contaminated soils has become a critical issue due to toxic effects of these metals on living organisms. The current research was conducted to study the effect of Pseudomonas fluorescens RB4 and Bacillus subtilis 189 on the growth and phytoremediation potential of Catharanthus roseus in Cu and Pb contaminated soils. The bacterial strains exhibited significantly higher level of water extractable Pb and Cu in Pb, Cu and both elements contaminated soils. The P. fluorescens RB4 inoculated plants, produced 102%, 48% and 45% higher fresh weight (FW) in soils contaminated with Cu, Pb and both elements respectively, as compared to un-inoculated control plants...
November 7, 2016: International Journal of Phytoremediation
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