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Articles de revues sur le sujet « Phytoremediation enhanced by microorganism »

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Auteur : Grafiati
Publié le 11 mars 2023

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1

Ptaszek, Natalia, Magdalena Pacwa-Płociniczak, Magdalena Noszczyńska et Tomasz Płociniczak. « Comparative Study on Multiway Enhanced Bio- and Phytoremediation of Aged Petroleum-Contaminated Soil ». Agronomy 10, no 7 (1 juillet 2020) : 947. http://dx.doi.org/10.3390/agronomy10070947.

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Bioremediation and phytoremediation of soil polluted with petroleum hydrocarbons (PHs) are an effective and eco-friendly alternative to physicochemical methods of soil decontamination. These techniques can be supported by the addition of effective strains and/or surface-active compounds. However, to obtain maximum efficacy of bioremediation, the interactions that occur between the microorganisms, enhancement factors and plants need to be studied. Our study aimed to investigate the removal of petroleum hydrocarbons from an aged and highly polluted soil (hydrocarbon content about 2.5%) using multiway enhanced bio- and phytoremediation. For this purpose, 10 enhanced experimental groups were compared to two untreated controls. Among the enhanced experimental groups, the bio- and phytoremediation processes were supported by the endophytic strain Rhodococcus erythropolis CDEL254. This bacterial strain has several plant growth-promoting traits and can degrade petroleum hydrocarbons and produce biosurfactants. Additionally, a rhamnolipid solution produced by Pseudomonas aeruginosa was used to support the total petroleum hydrocarbon loss from soil. After 112 days of incubation, the highest PH removal (31.1%) was observed in soil planted with ryegrass (Lolium perenne L. cv. Pearlgreen) treated with living cells of the CDEL254 strain and rhamnolipid solution. For non-planted experimental groups, the highest PH loss (26.1%) was detected for soil treated with heat-inactivated CDEL254 cells and a rhamnolipid solution. In general, the differences in the efficacy of the 10 experimental groups supported by plants, live/dead cells of the strain tested and rhamnolipid were not statistically significant. However, each of these groups was significantly more effective than the appropriate control groups. The PH loss in untreated (natural attenuation) and soils that underwent phytoremediation reached a value of 14.2% and 17.4%, respectively. Even though the CDEL254 strain colonized plant tissues and showed high survival in soil, its introduction did not significantly increase PH loss compared to systems treated with dead biomass. These results indicate that the development of effective biological techniques requires a customized approach to the polluted site and effective optimization of the methods used.
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ANDARISTA UTOMO, ADZALIA, et SARWOKO MANGKOEDIHARDJO. « Preliminary Assessment of Mixed Plants for Phytoremediation of Chromium Contaminated Soil ». Current World Environment 13, Special issue 1 (25 novembre 2018) : 22–24. http://dx.doi.org/10.12944/cwe.13.special-issue1.04.

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This study determined the ability of mixed plants of Helianthus annus, Zinnia elegans, and Impatiens balsamine to remove chromium (Cr) from soil. This research used respirometer to measure the respiration rate of microorganisms in soil media and Atomic Absorption Spectophotometry to measure Cr content on soil and plants. The results of the study showed that the plants were able to remove Cr from the soil as much as 74%. However, the removal enhanced by microbial activity on the rootzone.
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Liu, Zhongchuang, Li-ao Wang, Shimin Ding et Hongyan Xiao. « Enhancer assisted-phytoremediation of mercury-contaminated soils by Oxalis corniculata L., and rhizosphere microorganism distribution of Oxalis corniculata L. » Ecotoxicology and Environmental Safety 160 (septembre 2018) : 171–77. http://dx.doi.org/10.1016/j.ecoenv.2018.05.041.

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Zhang, Jing, Rui Yin, Xiangui Lin, Weiwei Liu, Ruirui Chen et Xuanzhen Li. « Interactive Effect of Biosurfactant and Microorganism to Enhance Phytoremediation for Removal of Aged Polycyclic Aromatic Hydrocarbons from Contaminated Soils ». JOURNAL OF HEALTH SCIENCE 56, no 3 (2010) : 257–66. http://dx.doi.org/10.1248/jhs.56.257.

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Dhawi, Faten. « The Role of Plant Growth-Promoting Microorganisms (PGPMs) and Their Feasibility in Hydroponics and Vertical Farming ». Metabolites 13, no 2 (9 février 2023) : 247. http://dx.doi.org/10.3390/metabo13020247.

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There are many reasons for the increase in hydroponics/soil-free systems in agriculture, and these systems have now advanced to the form of vertical farming. The sustainable use of space, the reduction in water use compared to soil-based agriculture, the lack of pesticides, the ability to control nutrient inputs, and the implementation of user-friendly technology for environmental control and harvesting are all factors that have made the global market for vertical farming predicted to reach more than USD 10.02 billion by 2027. By comparison, soil-based agriculture consumes 20 times more water, and some agricultural practices promote soil deterioration and cause environmental pollution. Plant growth-promoting microorganisms (PGPMs) have been used extensively in traditional agriculture to enhance plant growth, environmental stress tolerance, and the efficacy of phytoremediation in soil-based farming. Due to the controlled atmosphere in hydroponics and vertical farms, there is strong potential to maximize the use of PGPMs. Here, we review the leveraging of plant growth-promoting microorganism mechanisms in hydroponics and vertical farming. We recommend a synchronized PGPM treatment using a biostimulant extract added to the hydroponic medium while also pre-treating seeds or seedlings with a microbial suspension for aquaponic and aeroponic systems.
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Zhao, Chong, Guosen Zhang et Jinhui Jiang. « Enhanced Phytoremediation of Bisphenol A in Polluted Lake Water by Seedlings of Ceratophyllum demersum and Myriophyllum spicatum from In Vitro Culture ». International Journal of Environmental Research and Public Health 18, no 2 (19 janvier 2021) : 810. http://dx.doi.org/10.3390/ijerph18020810.

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Bisphenol A (BPA) is a typical endocrine disruptor that causes problems in waters all around the world. In this study, the effects of submerged macrophytes (Ceratophyllum demersum and Myriophyllum spicatum) cultured in vitro on the removal of BPA at two initial concentrations (0.5 mg L−1 vs. 5.0 mg L−1) from Donghu lake water were investigated, using different biomass densities (2 g L−1 vs. 10 g L−1) under different nutrient conditions (1.85 mg L−1 and 0.039 mg L−1 vs. 8.04 mg L−1 and 0.175 mg L−1 of the total nitrogen and phosphorus concentration, respectively), together with the effect of indigenous microorganisms in the water. The results showed that indigenous microorganisms had limited capacity for BPA removal, especially at higher BPA initial concentration when its removal rate amounted to about 12% in 12 days. Addition with plant seedlings (5 cm in length) greatly enhanced the BPA removal, which reached 100% and over 50% at low and high BPA initial concentration in 3 days, respectively. Higher biomass density greatly favored the process, resulting in 100% of BPA removal at high BPA initial concentration in 3 days. However, increases in nutrient availability had little effect on the BPA removal by plants. BPA at 10.0 mg L−1 significantly inhibited the growth of M. spicatum. Therefore, C. demersum may be a candidate for phytoremediation due to greater efficiency for BPA removal and tolerance to BPA pollution. Overall, seedlings of submerged macrophytes from in vitro culture showed great potential for use in phytoremediation of BPA in natural waters, especially C. demersum.
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Jin, Zhong Min, Wei Sha, Yan Fu Zhang, Jing Zhao et Hongyang Ji. « Isolation of Burkholderia cepacia JB12 from lead- and cadmium-contaminated soil and its potential in promoting phytoremediation with tall fescue and red clover ». Canadian Journal of Microbiology 59, no 7 (juillet 2013) : 449–55. http://dx.doi.org/10.1139/cjm-2012-0650.

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Phytoremediation combined with suitable microorganisms and biodegradable chelating agents can be a means of reclaiming lands contaminated by toxic heavy metals. We investigated the ability of a lead- and cadmium-resistant bacterial strain (JB12) and the biodegradable chelator ethylenediamine-N,N′-disuccinic acid (EDDS) to improve absorption of these metals from soil by tall fescue and red clover. Strain JB12 was isolated from contaminated soil samples, analysed for lead and cadmium resistance, and identified as Burkholderia cepacia. Tall fescue and red clover were grown in pots to which we added JB12, (S,S)-EDDS, combined JB12 and EDDS, or water only. Compared with untreated plants, the biomass of plants treated with JB12 was significantly increased. Concentrations of lead and cadmium in JB12-treated plants increased significantly, with few exceptions. Plants treated with EDDS responded variably, but in those treated with combined EDDS and JB12, heavy metal concentrations increased significantly in tall fescue and in the aboveground parts of red clover. We conclude that JB12 is resistant to lead and cadmium. Its application to the soil improved the net uptake of these heavy metals by experimental plants. The potential for viable phytoremediation of lead- and cadmium-polluted soils with tall fescue and red clover combined with JB12 was further enhanced by the addition of EDDS.
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Irawati, Wahyu, Adolf Jan Nexson Parhusip, Nida Sopiah et Juniche Anggelique Tnunay. « The Role of Heavy Metals-Resistant Bacteria Acinetobacter sp. in Copper Phytoremediation using Eichhornia crasippes [(Mart.) Solms] ». KnE Life Sciences 3, no 5 (11 septembre 2017) : 208. http://dx.doi.org/10.18502/kls.v3i5.995.

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<p>Phytoremediation is a bioremediation process using plants and microorganisms to extract, sequester, or detoxify heavy metals. <em>Eichhornia crassipes </em>[(Mart.) Solms] is a well-known phytoremediating plant that has the ability to remove heavy metals from water by accumulating them in their tissues. <em>Acinetobacter </em>sp. IrC1 and <em>Acinetobacter </em>sp. IrC2 are copper resistant bacteria isolated from industrial waste in Rungkut, Surabaya. The aim of this research was to study the effect of <em>Acinetobacter </em>sp. IrC1 and <em>Acinetobacter </em>sp. IrC2 inoculation in copper phytoremediation process using <em>Eichhornia crassipes</em>. Bacterial isolate with colony form unit of 10<sup>8 </sup>was inoculated into the rhizosphere of <em>Eichhornia crassipes </em>in water containing 10 mL · L<sup>–1 </sup>and 20 mL · L<sup>–1</sup> copper. Copper removal in contaminated water and copper accumulation in the plant roots was analyzed using atomic absorption spectrophotometer. The results showed that inoculation treatment enhanced the potency of the plant to reduce copper from 94 % concentration level in the medium without bacterial inoculation to 98.3 % and 97 % in medium inoculated with <em>Acinetobacter </em>sp. IrC1 and <em>Acinetobacter </em>sp. IrC2, respectively. <em>Eichhornia crassipes </em>inoculated with <em>Acinetobacter </em>sp. IrC1 accumulated up to six fold higher copper concentrations in roots compared with un-inoculated controls. The roots of <em>Eichhornia crassipes</em> accumulated 596 mg · kg<sup>–1</sup>and 391 mg · kg<sup>–1</sup> in medium containing 5 mL · L<sup>–1</sup> and 10 mL · L<sup>–1</sup> copper without inoculation, while, the upper part of the plants accumulated up to 353 2.5 mg · kg<sup>–1</sup> and 194 1.5 mg · kg<sup>–1</sup> in medium inoculated with <em>Acinetobacter</em> sp. IrC1, respectively. The findings of the study indicated that <em>Acinetobacter </em>sp. IrC1 and <em>Acinetobacter </em>sp. IrC2 can improve the phytoremediation potential of <em>Eichhornia crassipes</em>.</p>
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Borowik, Agata, Jadwiga Wyszkowska et Jan Kucharski. « Microbiological Study in Petrol-Spiked Soil ». Molecules 26, no 9 (1 mai 2021) : 2664. http://dx.doi.org/10.3390/molecules26092664.

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The pollution of arable lands and water with petroleum-derived products is still a valid problem, mainly due the extensive works aimed to improve their production technology to reduce fuel consumption and protect engines. An example of the upgraded fuels is the BP 98 unleaded petrol with Active technology. A pot experiment was carried out in which Eutric Cambisol soil was polluted with petrol to determine its effect on the microbiological and biochemical properties of this soil. Analyses were carried out to determine soil microbiome composition—with the incubation and metagenomic methods, the activity of seven enzymes, and cocksfoot effect on hydrocarbon degradation. The following indices were determined: colony development index (CD); ecophysiological diversity index (EP); index of cocksfoot effect on soil microorganisms and enzymes (IFG); index of petrol effect on soil microorganisms and enzymes (IFP); index of the resistance of microorganisms, enzymes, and cocksfoot to soil pollution with petrol (RS); Shannon–Weaver’s index of bacterial taxa diversity (H); and Shannon–Weaver’s index of hydrocarbon degradation (IDH). The soil pollution with petrol was found to increase population numbers of bacteria and fungi, and Protebacteria phylum abundance as well as to decrease the abundance of Actinobacteria and Acidobacteria phyla. The cultivation of cocksfoot on the petrol-polluted soil had an especially beneficial effect mainly on the bacteria belonging to the Ramlibacter, Pseudoxanthomonas, Mycoplana, and Sphingobium genera. The least susceptible to the soil pollution with petrol and cocksfoot cultivation were the bacteria of the following genera: Kaistobacter, Rhodoplanes, Bacillus, Streptomyces, Paenibacillus, Phenylobacterium, and Terracoccus. Cocksfoot proved effective in the phytoremediation of petrol-polluted soil, as it accelerated hydrocarbon degradation and increased the genetic diversity of bacteria. It additionally enhanced the activities of soil enzymes.
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Pino, Nancy J., Luisa M. Muñera et Gustavo A. Peñuela. « Bioaugmentation with Immobilized Microorganisms to Enhance Phytoremediation of PCB-Contaminated Soil ». Soil and Sediment Contamination : An International Journal 25, no 4 (27 avril 2016) : 419–30. http://dx.doi.org/10.1080/15320383.2016.1148010.

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Alarcón, Alejandro, Fred T. Davies, Robin L. Autenrieth et David A. Zuberer. « Arbuscular Mycorrhiza and Petroleum-Degrading Microorganisms Enhance Phytoremediation of Petroleum-Contaminated Soil ». International Journal of Phytoremediation 10, no 4 (8 juillet 2008) : 251–63. http://dx.doi.org/10.1080/15226510802096002.

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Shuang, Cui, Han Qing et Bai Song. « Enhanced technology of phytoremediation ». E3S Web of Conferences 261 (2021) : 04034. http://dx.doi.org/10.1051/e3sconf/202126104034.

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The enhanced technology of phytoremediation has the advantages of low treatment cost, good purification effect, low environmental risk and environmental aesthetics. However, some hyperaccumulators grow slowly and their biomass is generally low; the activity of heavy metals in the soil is very low; the roots of plants are distributed in the surface of the soil, and the remediation effect of deep soil is poor; the nutrients of the soil to be repaired are seriously insufficient. It is necessary to take a series of strengthening measures to improve the efficiency of phytoremediation. The strengthening technologies of phytoremediation include chemical strengthening, microbial strengthening, animal strengthening, carbon dioxide strengthening, agronomic and management measures strengthening, etc.
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Guo, Shuyu, Bo Feng, Chunqiao Xiao, Qi Wang et Ruan Chi. « Phosphate-solubilizing microorganisms to enhance phytoremediation of excess phosphorus pollution in phosphate mining wasteland soil ». Bioremediation Journal 25, no 3 (16 février 2021) : 271–81. http://dx.doi.org/10.1080/10889868.2021.1884528.

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Khan, Abdul G. « Mycorrhizoremediation—An enhanced form of phytoremediation ». Journal of Zhejiang University SCIENCE B 7, no 7 (juillet 2006) : 503–14. http://dx.doi.org/10.1631/jzus.2006.b0503.

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15

Jankong, P., P. Visoottiviseth et S. Khokiattiwong. « Enhanced phytoremediation of arsenic contaminated land ». Chemosphere 68, no 10 (août 2007) : 1906–12. http://dx.doi.org/10.1016/j.chemosphere.2007.02.061.

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Kasman, Monik, Anggrika Riyanti et Catur Endah Kartikawati. « Fitoremediasi Logam Aluminium (Al) Pada Lumpur Instalasi Pengolahan Air Menggunakan Tanaman Melati Air (Echinodorus palaefolius) ». Jurnal Daur Lingkungan 2, no 1 (8 avril 2019) : 7. http://dx.doi.org/10.33087/daurling.v2i1.17.

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Clean water as basic need produced by the Regional Water Company (PDAM) and the by-product of this production was in the form of sludge. PDAM sludge contain Aluminium in the form of Al (OH)3 with the potential pollution if thrown into environment. This research aims to determine the efficiency of removal of Al metal on PDAM sludge through phytoremediation by using jasmine water plants and to determine the absorption of Al metal that accumulates in the roots of water jasmine plants in phytoremediation I (without media) and phytoremediation II (with gravel and humus soil). Sludge sample was carried out directly on the outlet sludge drying bed PDAM Water Treatment Plant (IPA) Tanjung Sari. The phytoremediation process is then carried out to reducted Al metal content in the sludge by using water jasmine plants. Furthermore, Al metal concentrations were analyzed at 3, 5, 7, 9 and 11 days of contact and analysis of Al metal absorption on the roots of jasmine water plants was done after phytoremediation process in days-11. The result showed at the contact time 3, 5, 7, 9, and 11 day, the efficiency of Al metal concentration on the phytoremediation I in a sequence were 46%; 62%; 72%; 80%; and 83%, while in phytoremediation II were 50%; 67%; 75%; 81%; and 86%. The concentration of Al metal absorption on the roots of jasmine plant water at phytoremediation I and phytoremediation II are 898,10 mg/l dan 302,42 mg/l. The high absorption in the phytoremediation I due to the absence of planting media so the metal occurs more optimal but they really experienced low power regeneration. While in phytoremediation II which has a growing media, formed a rizosfer zone which is rich in oxygen and microorganism so that the plant having a higher level of regeneration.
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Guerra Sierra, Beatriz E., Jaider Muñoz Guerrero et Serge Sokolski. « Phytoremediation of Heavy Metals in Tropical Soils an Overview ». Sustainability 13, no 5 (27 février 2021) : 2574. http://dx.doi.org/10.3390/su13052574.

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The geomorphological characteristics of the materials inherent in tropical soils, in addition to the excessive use of fertilizers and pesticides, industrial waste and residues, and novel pollutants derived from emerging new technologies such as nanomaterials, affect the functionality and resilience of the soil-microorganism-plant ecosystem; impacting phytoremediation processes and increasing the risk of heavy metal transfer into the food chain. The aim of this review is to provide a general overview of phytoremediation in tropical soils, placing special emphasis on the factors that affect this process, such as nanoagrochemicals, and highlighting the value of biodiversity among plant species that have the potential to grow and develop in soils impacted by heavy metals, as a useful resource upon which to base further research.
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Reni Ustiatik, Yulia Nuraini, Suharjono et Eko Handayanto. « Isolation of Mercury-Resistant Endophytic and Rhizosphere Microorganisms from Grasses in Abandoned Gold Mining Area ». Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) 49, no 1 (30 avril 2021) : 97–104. http://dx.doi.org/10.24831/jai.v49i1.32356.

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There were about 900 hotspots of artisanal and small scale gold mining (ASGM) in Indonesia that recovered gold through amalgamation and cyanidation techniques. Amalgamation technique causes mercury (Hg) pollution to the soil. This study was a preliminary study that aimed to isolate Hg-resistant endophytic and rhizosphere microorganisms from pioneer grasses in the Hg-polluted soil. The most potential microorganism will be used for Hg phytoremediation in the future study. Pioneer grasses were collected from the abandoned gold mining area in Central Lombok Regency, West Nusa Tenggara. Total microorganisms were counted using Colony Forming Unit (CFU) or Standard Plate Count. The microorganism colony was characterized based on morphological characteristics. Hg-resistant endophytic and rhizosphere microorganisms were successfully isolated from pioneer grass (Cynodon dactylon and Eleusine indica) in the study site. The colonies of rhizosphere microorganisms were diverse morphologically compared to endophytic microorganisms based on the number of isolated microorganisms, 20 isolates and 17 isolates, respectively. The density of rhizosphere microorganisms was higher (96%) than endophytic microorganisms (4%). The density of rhizosphere bacteria and fungi were 47x103 and 2x103 CFU g-1, respectively. However, the density of endophytic bacteria and fungi were only 2x103 and 1x103 CFU g-1, respectively. Keywords: endophytic microorganism, Hg-resistant, microorganism density, rhizosphere microorganism
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Siciliano, Steven D., et James J. Germida. « Enhanced phytoremediation of chlorobenzoates in rhizosphere soil ». Soil Biology and Biochemistry 31, no 2 (février 1999) : 299–305. http://dx.doi.org/10.1016/s0038-0717(98)00120-5.

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Asilian, Ebrahim, Reza Ghasemi-Fasaei, Abdolmajid Ronaghi, Mozhgan Sepehri et Ali Niazi. « Chemical- and microbial-enhanced phytoremediation of cadmium-contaminated calcareous soil by maize ». Toxicology and Industrial Health 35, no 5 (mai 2019) : 378–86. http://dx.doi.org/10.1177/0748233719842752.

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Phytoremediation is an appropriate technology used to remove pollutants from environment components. A greenhouse trial was conducted to test the hypothesis that application of surfactant levels and inoculation with Pseudomonas fluorescens bacterium and/or Piriformospora indica fungus enhances the phytoremediation of cadmium (Cd). Maize seeds were sown in Cd-polluted soil, and after 2 months Cd status in plant tissues and Cd phytoremediation criteria was determined. Results showed that application of surfactant increased root and shoot dry weight. Mean Cd uptake in roots and shoots increased following the application of 2 and 4 mmol kg−1 Tween 80, respectively. Application of 2 mmol kg−1 Tween 80 increased mean Cd uptake efficiency, while application of 4 mmol kg−1 Tween 80 increased phytoextraction and translocation efficiencies. Inoculation with P. indica and P. fluorescens was mostly effective in increasing Cd uptake and Cd phytoextraction efficiency, respectively. Co-inoculation with P. indica and P. fluorescens had no superiority to application of each inoculant alone. Since most of the Cd remained in roots, phytostabilization is probably the main mechanism controlling Cd phytoremediation by maize. According to the results, application of Tween 80 and inoculation with P. indica and P. fluorescens effectively enhanced phytoremediation of Cd-contaminated soil by maize.
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Condat, C. A., et G. J. Sibona. « Noise-enhanced mechanical efficiency in microorganism transport ». Physica A : Statistical Mechanics and its Applications 316, no 1-4 (décembre 2002) : 203–12. http://dx.doi.org/10.1016/s0378-4371(02)01496-6.

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Gladkov, Evgeny A., Dmitry V. Tereshonok, Anna Y. Stepanova et Olga V. Gladkova. « Plant–Microbe Interactions under the Action of Heavy Metals and under the Conditions of Flooding ». Diversity 15, no 2 (26 janvier 2023) : 175. http://dx.doi.org/10.3390/d15020175.

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Heavy metals and flooding are among the primary environmental factors affecting plants and microorganisms. This review separately considers the impact of heavy metal contamination of soils on microorganisms and plants, on plant and microbial biodiversity, and on plant–microorganism interactions. The use of beneficial microorganisms is considered one of the most promising methods of increasing stress tolerance since plant-associated microbes reduce metal accumulation, so the review focuses on plant–microorganism interactions and their practical application in phytoremediation. The impact of flooding as an adverse environmental factor is outlined. It has been shown that plants and bacteria under flooding conditions primarily suffer from a lack of oxygen and activation of anaerobic microflora. The combined effects of heavy metals and flooding on microorganisms and plants are also discussed. In conclusion, we summarize the combined effects of heavy metals and flooding on microorganisms and plants.
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Shahid, M., A. Austruy, G. Echevarria, M. Arshad, M. Sanaullah, M. Aslam, M. Nadeem, W. Nasim et C. Dumat. « EDTA-Enhanced Phytoremediation of Heavy Metals : A Review ». Soil and Sediment Contamination : An International Journal 23, no 4 (16 décembre 2013) : 389–416. http://dx.doi.org/10.1080/15320383.2014.831029.

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Jeong, Seulki, Hee Sun Moon, Woojin Yang et Kyoungphile Nam. « Applicability of Enhanced-phytoremediation for Arsenic-contaminated Soil ». Journal of Soil and Groundwater Environment 21, no 1 (28 février 2016) : 40–48. http://dx.doi.org/10.7857/jsge.2016.21.1.040.

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Van Aken, Benoit. « Transgenic plants for enhanced phytoremediation of toxic explosives ». Current Opinion in Biotechnology 20, no 2 (avril 2009) : 231–36. http://dx.doi.org/10.1016/j.copbio.2009.01.011.

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Cameselle, Claudio, Reshma A. Chirakkara et Krishna R. Reddy. « Electrokinetic-enhanced phytoremediation of soils : Status and opportunities ». Chemosphere 93, no 4 (octobre 2013) : 626–36. http://dx.doi.org/10.1016/j.chemosphere.2013.06.029.

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Gao, Yang, Chiyuan Miao, Yafeng Wang, Jun Xia et Pei Zhou. « Metal-resistant microorganisms and metal chelators synergistically enhance the phytoremediation efficiency ofSolanum nigrumL. in Cd- and Pb-contaminated soil ». Environmental Technology 33, no 12 (juin 2012) : 1383–89. http://dx.doi.org/10.1080/09593330.2011.629006.

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Vocciante, Marco, Martina Grifoni, Danilo Fusini, Gianniantonio Petruzzelli et Elisabetta Franchi. « The Role of Plant Growth-Promoting Rhizobacteria (PGPR) in Mitigating Plant’s Environmental Stresses ». Applied Sciences 12, no 3 (25 janvier 2022) : 1231. http://dx.doi.org/10.3390/app12031231.

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Phytoremediation is a cost-effective and sustainable technology used to clean up pollutants from soils and waters through the use of plant species. Indeed, plants are naturally capable of absorbing metals and degrading organic molecules. However, in several cases, the presence of contaminants causes plant suffering and limited growth. In such situations, thanks to the production of specific root exudates, plants can engage the most suitable bacteria able to support their growth according to the particular environmental stress. These plant growth-promoting rhizobacteria (PGPR) may facilitate plant growth and development with several beneficial effects, even more evident when plants are grown in critical environmental conditions, such as the presence of toxic contaminants. For instance, PGPR may alleviate metal phytotoxicity by altering metal bioavailability in soil and increasing metal translocation within the plant. Since many of the PGPR are also hydrocarbon oxidizers, they are also able to support and enhance plant biodegradation activity. Besides, PGPR in agriculture can be an excellent support to counter the devastating effects of abiotic stress, such as excessive salinity and drought, replacing expensive inorganic fertilizers that hurt the environment. A better and in-depth understanding of the function and interactions of plants and associated microorganisms directly in the matrix of interest, especially in the presence of persistent contamination, could provide new opportunities for phytoremediation.
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Iqra Tabassum, Sumaira Mazhar et Beenish Sarfraz. « Phytoremediation of Lead Contaminated Soil Using Sorghum Plant in Association with Indigenous Microbes ». Scientific Inquiry and Review 6, no 3 (15 septembre 2022) : 79–93. http://dx.doi.org/10.32350/sir.63.05.

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Heavy metals are discharged in large quantities in both land and water bodies, causing long-term damage to living organisms. Phytoremediation is an effective way to address this problem. The goal of this study was to identify how lead resistant microorganisms affect the growth of sorghum plant, both in the presence and absence of lead. For this purpose, lead resistant microbes were isolated to investigate the growth and concentration of lead in the sorghum plant. Isolated species were inoculated with lead containing media in different concentrations, such as 300, 400, 500, and 600 µg/ml concentrations. Highly lead resistant bacterial isolates were selected and inoculated with sorghum seeds under typical environmental conditions in small pots, with and without lead contamination (300 mg/Kg). In the presence of lead resistant bacteria, efficient growth was observed with less concentration of lead in the plants. Promising results were observed in the presence of GS3 and IS2 isolates. The current study showed that lead tolerant bacterial isolates are very helpful to degrade lead when grown with sorghum seeds. Furthermore, it also enhances the growth of sorghum plant.
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Guo, Chang Hong, Rui Dong, Peng Guan et Fei Fei Xun. « Influence of AMF on Oat Used to Phytoremediation in Petroleum Contaminated Soil ». Advanced Materials Research 356-360 (octobre 2011) : 248–51. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.248.

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Petroleum, one of the main energy resources, plays an important role in the progress of human culture. With the development of petroleum industry, soil contamination by petroleum products has become a worldwide environment problem. This study investigated the effects of inoculation using microorganism, identified as an arbuscular mycorrhizal fungus (AMF), Glomus intraradices on oat under petroleum stress using a pot experiment in greenhouse. The concentration of petroleum in the tested soils was 5000mg/kg. The results showed that the degradation rate of the total petroleum hydrocarbons (TPHs) of the inoculation treatments was significantly higher than the non-inoculation group. By detection the index of plant growth and physiology, such as soluble protein and MDA, the results showed that all the inoculation treatments increased plant tolerance to the TPHs stress and which could promote the phytoremediation.
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Yin, Hongda, Yuqiao Chen, Yuming Feng, Lian Feng et Qilin Yu. « Synthetic physical contact-remodeled rhizosphere microbiome for enhanced phytoremediation ». Journal of Hazardous Materials 433 (juillet 2022) : 128828. http://dx.doi.org/10.1016/j.jhazmat.2022.128828.

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Li, Zhenjun, Yongsheng Tian, Bo Wang, Rihe Peng, Jing Xu, Xiaoyan Fu, Hongjuan Han et al. « Enhanced phytoremediation of selenium using genetically engineered rice plants ». Journal of Plant Physiology 271 (avril 2022) : 153665. http://dx.doi.org/10.1016/j.jplph.2022.153665.

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Alkorta, I., J. Hernández-Allica, J. M. Becerril, I. Amezaga, I. Albizu, M. Onaindia et C. Garbisu. « Chelate-Enhanced Phytoremediation of Soils Polluted with Heavy Metals ». Reviews in Environmental Science and Bio/Technology 3, no 1 (2004) : 55–70. http://dx.doi.org/10.1023/b:resb.0000040057.45006.34.

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Römkens, Paul, Lucas Bouwman, Jan Japenga et Cathrina Draaisma. « Potentials and drawbacks of chelate-enhanced phytoremediation of soils ». Environmental Pollution 116, no 1 (janvier 2002) : 109–21. http://dx.doi.org/10.1016/s0269-7491(01)00150-6.

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Cameselle, Claudio, et Susana Gouveia. « Phytoremediation of mixed contaminated soil enhanced with electric current ». Journal of Hazardous Materials 361 (janvier 2019) : 95–102. http://dx.doi.org/10.1016/j.jhazmat.2018.08.062.

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Ramamurthy, A. S., et R. Memarian. « Chelate enhanced phytoremediation of soil containing a mixed contaminant ». Environmental Earth Sciences 72, no 1 (27 novembre 2013) : 201–6. http://dx.doi.org/10.1007/s12665-013-2946-2.

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Hovsepyan, Anna, et Sigurdur Greipsson. « EDTA-Enhanced Phytoremediation of Lead-Contaminated Soil by Corn ». Journal of Plant Nutrition 28, no 11 (novembre 2005) : 2037–48. http://dx.doi.org/10.1080/01904160500311151.

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Doty, S. L., C. A. James, A. L. Moore, A. Vajzovic, G. L. Singleton, C. Ma, Z. Khan et al. « Enhanced phytoremediation of volatile environmental pollutants with transgenic trees ». Proceedings of the National Academy of Sciences 104, no 43 (16 octobre 2007) : 16816–21. http://dx.doi.org/10.1073/pnas.0703276104.

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Wu, Yun Xiao. « Enhanced Phytoremediation on PAHs in Soils and Laboratorial Technics ». Advanced Materials Research 1065-1069 (décembre 2014) : 3140–45. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.3140.

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Potentials of three plant species, rape, alfalfa and white clover, separately or jointly on the degradation of polycyclic aromatic hydrocarbons (PAHs) in soil were estimated by pots experiments. Results showed the presence of vegetation apparently enhanced the dissipation of PAHs at initial concentrations ranging from 20.05 to 322.06 mg·kg-1. Within 70-day experiment, alfalfa and white clover showed higher efficiencies for removal of PAHs than those of rape, and mixed cropping greatly enhanced the dissipation of PAHs as compared to single cropping. On average 74.87% of phenanthrene or 62.81% of pyrene were removed from soils with mixed cropping of rape and alfalfa, and 72.01% of phenanthren or 68.44% of pyrene removed by mixed cropping of rape and white clover. Results suggested a feasibility of the establishment of multispecies remediation for enforcing the dissipation of PAHs.
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Xia, Chua Mei, Dineshkumar Muniandy et Derek Juinn Chieh Chan. « FED BATCH PHYTOREMEDIATION REGIME FOR ENHANCED NUTRIENT REMOVAL BY SALVINIA MOLESTA ON FISH FARM WASTEWATER ». ASEAN Engineering Journal 12, no 1 (28 février 2022) : 49–56. http://dx.doi.org/10.11113/aej.v12.16610.

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Phytoremediation is a bioremediation process that uses various types of plants to remove, transfer, stabilize, and destroy contaminants in the soil and groundwater. In this study, the performance of fed batch (FB) phytoremediation by S. molesta on fish farm wastewater was investigated by varying percentage of fresh wastewater loading. This study was aimed to investigate the biomass production of S. molesta through different FB percentage cultivation along with nutrient removal aiming to treat wastewater. The water quality after phytoremediation was monitored throughout 16 days. The nutrient removal efficiency was high in higher percentage of FB but all the medium achieved standard discharge limit. Ammonia and phosphate removal showed very high (˂95%) for 75% FB medium with total removal of 46.59 mg and 5.46 mg respectively. The removal of ammonia and phosphate by control set was 13.73 mg and 1.62 mg. Although the concentration of nitrate continued to increase throughout the study, FB cultivation minimized the increment where all percentage experienced decrease in nitrate value and 75% FB had lowest level of 2.40 mg/L compared to control which was 5.00 mg/L. However total nitrogen value in higher FB medium indicated highest value of 13.85 mg/L on day 16. VSS for FB medium was far below control. FB phytoremediation of S. molesta in fish farm water showed high efficiency in nutrient removal but no significant effect on its biomass. This study proved that FB phytoremediation of S. molesta has potential on nutrient removal from fish farm wastewater
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Ali, Shafaqat, Zohaib Abbas, Muhammad Rizwan, Ihsan Zaheer, İlkay Yavaş, Aydın Ünay, Mohamed Abdel-DAIM, May Bin-Jumah, Mirza Hasanuzzaman et Dimitris Kalderis. « Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water : A Review ». Sustainability 12, no 5 (3 mars 2020) : 1927. http://dx.doi.org/10.3390/su12051927.

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Heavy-metal (HM) pollution is considered a leading source of environmental contamination. Heavy-metal pollution in ground water poses a serious threat to human health and the aquatic ecosystem. Conventional treatment technologies to remove the pollutants from wastewater are usually costly, time-consuming, environmentally destructive, and mostly inefficient. Phytoremediation is a cost-effective green emerging technology with long-lasting applicability. The selection of plant species is the most significant aspect for successful phytoremediation. Aquatic plants hold steep efficiency for the removal of organic and inorganic pollutants. Water hyacinth (Eichhornia crassipes), water lettuce (Pistia stratiotes) and Duck weed (Lemna minor) along with some other aquatic plants are prominent metal accumulator plants for the remediation of heavy-metal polluted water. The phytoremediation potential of the aquatic plant can be further enhanced by the application of innovative approaches in phytoremediation. A summarizing review regarding the use of aquatic plants in phytoremediation is gathered in order to present the broad applicability of phytoremediation.
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42

She, Haicheng, Debin Kong, Yiqiang Li, Zaiqiang Hu et Hu Guo. « Recent Advance of Microbial Enhanced Oil Recovery (MEOR) in China ». Geofluids 2019 (9 avril 2019) : 1–16. http://dx.doi.org/10.1155/2019/1871392.

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Compared with other enhanced oil recovery (EOR) techniques like gas flooding, chemical flooding, and thermal production, the prominent advantages of microbial enhanced oil recovery (MEOR) include environment-friendliness and lowest cost. Recent progress of MEOR in laboratory studies and microbial flooding recovery (MFR) field tests in China are reviewed. High biotechnology is being used to investigate MFR mechanisms on the molecular level. Emulsification and wettability alternation due to microbial effects are the main interests at present. Application of a high-resolution mass spectrum (HRMS) on MEOR mechanism has revealed the change of polar compound structures before and after oil degradation by the microbial on the molecular level. MEOR could be divided into indigenous microorganism and exogenous microorganism flooding. The key of exogenous microorganism flooding was to develop effective production strains, and difficulty lies in the compatibility of the microorganism, performance degradation, and high cost. Indigenous microorganism flooding has good adaptation but no follow-up process on production strain development; thus, it represents the main development direction of MEOR in China. More than 4600 wells have been conducted for MEOR field tests in China, and about 500 wells are involved in MFR. 47 MFR field tests have been carried out in China, and 12 field tests are conducted in Daqing Oilfield. MFR field test’s incremental oil recovery is as high as 4.95% OOIP, with a typical slug size less than 0.1 PV. The input-output ratio can be 1 : 6. All field tests have shown positive results in oil production increase and water cut reduction. MEOR screening criteria for reservoirs in China need to be improved. Reservoir fluid, temperature, and salinity were the most important three parameters. Microbial flooding technology is mature in reservoirs with temperature lower than 80°C, salinity less than 100,000 ppm, and permeability above 5 mD. MFR in China is very close to commercial application, while MFR as quaternary recovery like those in post-polymer flooding reservoirs needs further study.
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Wang, Xin, Zhaoxing Li, Mengqin Yao, Jia Bao et Huiwen Zhang. « Degradation of carbofuran in contaminated soil by plant-microorganism combined technology ». Journal of the Serbian Chemical Society 85, no 1 (2020) : 111–23. http://dx.doi.org/10.2298/jsc190301052l.

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With the development of modern agriculture, the pollution caused by the use of chemical fertilizers and pesticides has become a serious problem, posing a threat to human health and the living environment. Bioremediation technology is receiving more and more attention due to the safety of contaminated soil, non-secondary pollution, and low cost. In this study, white rot fungi were immobilized by the adsorption method, and the functional plants suitable for reducing carbofuran were screened by pot experiment. Based on a previous study, a combined remediation technique was established. The results showed that after 30 days, compared to the single bioremediation of carbofuran-contaminated soil, the degradation rate increased by 19 % through the corn?white rot fungi combined remediation, and by 17 % using the sorghum?white rot fungi combined remediation. The effect of the pesticide content in soil on the combined remediation is mainly reflected in the significant difference in the number of microorganisms (p < 0.05). Combined bioremediation may be a better alternative to mitigate the impact of high pollution on microorganisms at different pollutant concentrations compared to single microbial bioremediation or phytoremediation.
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Kahraman, Mehmet, M. Müge Yazici, Fİkrettİn Şahİn, Ömer F. Bayrak, Emİne TopÇu et Mustafa Çulha. « Towards single-microorganism detection using surface-enhanced Raman spectroscopy ». International Journal of Environmental Analytical Chemistry 87, no 10-11 (20 août 2007) : 763–70. http://dx.doi.org/10.1080/03067310701336379.

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Wu, Yun Xiao, et Ming Cheng Hu. « Enhanced Phytoremediation on PAHs in Soils by Combined Plants Cultivation ». Applied Mechanics and Materials 651-653 (septembre 2014) : 1436–41. http://dx.doi.org/10.4028/www.scientific.net/amm.651-653.1436.

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Phytoremediation of PAHs in soils at initial contents ranging from 20.05 to 322.06 mg·kg-1 was investigated under different planting patterns, and enhancement mechanisms were analyzed. Results showed that the dissipation of PAHs in soils growing white clover and alfalfa significantly exceeded those vegetating single species. During 70-day experiment, about 75.06% of Phe and 68.22% of Pyr was removed from the soils under mixed cropping; while only 31.8% and 64.03% of Phe and 27.84% and 51.93 of Pyr were removed under single white clover and alfalfa cropping, respectively. Of all pathways enforcing PAHs removal, the plant-microbial interactions is the most predominant. These results suggested a feasibility of the establishment of multi-species phytoremediation for improvement of the remediation efficiencies of PAHs, which may decrease accumulations of PAHs in crops and thus reduce their ecological risks.
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Huang, Yingping, Yizhi Song, David Johnson, Jueying Huang, Ren Dong et Huigang Liu. « Selenium enhanced phytoremediation of diesel contaminated soil by Alternanthera philoxeroides ». Ecotoxicology and Environmental Safety 173 (mai 2019) : 347–52. http://dx.doi.org/10.1016/j.ecoenv.2019.02.040.

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Xi, Ying, Yizhi Song, David M. Johnson, Meng Li, Huigang Liu et Yingping Huang. « Se enhanced phytoremediation of diesel in soil by Trifolium repens ». Ecotoxicology and Environmental Safety 154 (juin 2018) : 137–44. http://dx.doi.org/10.1016/j.ecoenv.2018.01.061.

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Yadav, Rakesh, Pooja Arora, Sandeep Kumar et Ashok Chaudhury. « Perspectives for genetic engineering of poplars for enhanced phytoremediation abilities ». Ecotoxicology 19, no 8 (17 septembre 2010) : 1574–88. http://dx.doi.org/10.1007/s10646-010-0543-7.

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WANG, Hong-qi, Si-jin LU, hua LI et Zhi-hua YAO. « EDTA-enhanced phytoremediation of lead contaminated soil by Bidens maximowicziana ». Journal of Environmental Sciences 19, no 12 (janvier 2007) : 1496–99. http://dx.doi.org/10.1016/s1001-0742(07)60243-5.

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Abhilash, P. C., Sarah Jamil et Nandita Singh. « Transgenic plants for enhanced biodegradation and phytoremediation of organic xenobiotics ». Biotechnology Advances 27, no 4 (juillet 2009) : 474–88. http://dx.doi.org/10.1016/j.biotechadv.2009.04.002.

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