Suitability of Immobilized Pseudomonas fluorescens SM1 Strain for Remediation of Phenols, Heavy Metals, and Pesticides from Water

Wasi, Samina; Tabrez, Shams; Ahmad, Masood

doi:10.1007/s11270-010-0737-x

Cited by 39 publications

(17 citation statements)

References 57 publications

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“…Among PGPR species, fluorescent pseudomonads are frequently recovered from both the soil and plant rhizospheres. Among these, Pseudomonas fluorescens is a well-known soil and rhizosphere inhabitant (Van Elsas et al 2006) that can tolerate high concentrations of heavy metals in polluted waters (Wasi et al 2010). Its utilisation as a seed bioinoculant for hyperaccumulator plants is currently unknown, and there are very few studies aimed at investigating its capability for increasing the metal availability of the rhizospheres of such plants (Dell'Amico et al 2008;Sheng et al 2008).…”

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confidence: 99%

Effects of Pseudomonas fluorescens Seed Bioinoculation on Heavy Metal Accumulation for Mirabilis jalapa Phytoextraction in Smelter-Contaminated Soil

Petriccione¹,

Patre²,

Ferrante³

et al. 2013

Water Air Soil Pollut

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Some Pseudomonas fluorescens strains, consistently isolated from the rhizosphere of wild plants grown in a soil that was highly polluted with illegal waste of smelter residues, were utilised for Mirabilis jalapa seed bioinoculation to verify their effects on seed germination and on promoting a higher heavy metal accumulation in the plant rhizosphere and/or uptake in the leaves. The high content of heavy metals in the soil induced a decrease in either the leaf dry weight or photosynthetic pigment concentration during all vegetative phase of M. jalapa. Bioinoculation with P. fluorescens strains significantly increased the germination of seeds and the root length in the contaminated soil. In some bacterial strain/seed combination, bioinoculation significantly increased the accumulation of heavy metals in M. jalapa rhizosphere. For Cd, the concentration of this metal in the rhizospheres of bioinoculated plants ranged from 270 to 910 μg g −1 of dry weight compared with 200 μg g −1 of dry weight for the non-coated plants. Two P. fluorescens strains, AA27 and MO49, which were isolated from Artemisia annua and Melilotus officinalis, respectively, induced a significantly higher rhizosphere availability also for Cr, Cu, Ni and Zn. However, despite the relevant accumulation of the heavy metals in the plant rhizosphere, generally the metal uptake into the leaves was rather low. Both analysis of variance and principal component analysis confirmed this finding. However, one P. fluorescens strain, CD1, which was isolated from the multi-metal accumulator Cynodon dactylon, significantly promoted the M. jalapa leaf uptake for Cr, Cu and Zn. The plant metal uptake assessment, confirmed the per se capability of M. jalapa to effectively uptake Cd (30 %) and Cu (12.72 %) from the rhizosphere to the leaves, whereas the uptake for the other metals was low: Ni (2.66 %), Zn (2.46 %), Cr (1.75 %), Pb (0.73 %).

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confidence: 99%

Effects of Pseudomonas fluorescens Seed Bioinoculation on Heavy Metal Accumulation for Mirabilis jalapa Phytoextraction in Smelter-Contaminated Soil

Petriccione¹,

Patre²,

Ferrante³

et al. 2013

Water Air Soil Pollut

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“…Researchers have indicated that immobilized cells of P. fluorescens SM1 strain were quite effective in bioremediation of major toxicants present in Indian water bodies, including heavy metal [26]. The functional groups such as hydroxyl, carboxyl, amide, and phosphate groups which identified on P. fluorescens surface by FTIR technique could possibly be involved in the metal binding of Zn, Co, Cd, Pb, Cu, Cr, and Fe [27].…”

Section: Characterization Of Potential Bacteriummentioning

confidence: 99%

The Potential of Indigenous Bacteria for Removing Cadmium from Industrial Wastewater in Lawang, East Java

Pambudiono

Suarsini

Amin

2018

J.Trop.Life.Science

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Heavy metals have been used in various areas around the world especially in the industrial sector. Heavy metals contamination is very dangerous for ecosystem because of its toxicity for some organisms. Cadmium (Cd) is a dangerous metal pollutant that can cause remarkable diverse of toxic effects, in particular for humans and animals. The use of bacteria as bioremediation agents has been widely studied because more efficient, less cost, and environmentally friendly strategy. This present study aimed to isolate and identify Cd-resistant bacteria from the industrial disposal site. Wastewater samples were collected from disposal site of agar flour industry in Lawang Malang, East Java. The collected wastewater effluent was analyzed for physicochemical properties. Isolation of Cd-resistant bacteria was carried out using serial dilution. Bacterial isolates were observed and tested for their effects on the content of Cd. The content of Cd was tested daily using Atomic Absorption Spectroscopy (AAS) for seven consecutive days.

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“…Several studies conducted in India demonstrated the presence of various pollutants in surface waters with the major toxicants being heavy metals, pesticides and phenolics (CPCB 1995;Handa 1992;Ahmad 2009, 2011a;Wasi et al 2010Wasi et al , 2011. Various decontamination strategies have thus gained momentum in recent years.…”

Section: Introductionmentioning

confidence: 99%

“…Various decontamination strategies have thus gained momentum in recent years. Bioremediation has been used as a preferred strategy to remove pollutants, not necessarily completely but to convert into the substances with decreased solubility and toxicity (Kamaludeen et al 2003;Wasi et al 2010Wasi et al , 2011. Pseudomonas strains have been found to degrade a large number of substances (Bhat et al 1994;Roane et al 2001).…”

Section: Introductionmentioning

confidence: 99%

Detoxification Potential of Pseudomonas fluorescens SM1 Strain for Remediation of Major Toxicants in Indian Water Bodies

Wasi

Tabrez

Ahmad

2011

Water Air Soil Pollut

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The present investigation was carried out to evaluate the detoxification potential of Pseudomonas fluorescens SM1 strain immobilized in calcium alginate beads for some major toxicants of Indian water bodies. The toxicants selected in this study were benzene hexachloride, mancozeb, 2,4-dichlorophenoxyacetic acid (pesticides); phenol, catechol, cresol (phenolics); and Cd ++ , Cr(VI), Cu ++ and Ni ++ (heavy metals), which were taken as mixtures up to a concentration of roughly twice that usually found in highly polluted sites. Allium cepa phytotoxicity test, Ames fluctuation test and plasmid nicking assay were employed to estimate the phytotoxicity and genotoxicity of the model water containing the test toxicants under different combinations before and after exposure to our bioremediation-cum-detoxification system. The IC 50 of the model water containing all the test toxicants, treated with the immobilized SM1 cells, was recorded to be 0.7× compared to 0.06× for the same but untreated water sample, enhancing the IC 50 value by 12-fold. The IC 25 of the test heavy metal mixture only could enhance from 0.07 to 1.30× (18-fold). The IC 25 of the test pesticide mixture alone was increased from 0.07 to 1.71× (24-fold). The IC 25 values for the mixture of test phenolics were 0.07× and 2.18× under the pre-and post-treatment conditions, respectively, exhibiting a 31-fold increase. A mutational induction (Mi) corresponding to the 0.5 value in the Ames fluctuation test was used to evaluate the mutagenicity of the test model water containing all the toxicants before and after exposure to the immobilized SM1 cell system. The Mi (0.5) value with the TA98 tester strain was estimated to be 0.08× for the untreated and 0.6× for the treated model water, whereas the same index was calculated to be 0.48× and 1.8×, respectively, for the TA100 strain. A remarkable improvement in the quality of the test water as a result of exposure to this bioremediating system was observed in terms of the absence of the linear form of the plasmid contrary to the visible linearization with the untreated model water. In view of the above findings, it is quite clear that the test of P. fluorescens SM1 strain immobilized in the calcium alginate beads could be used as an efficient system of bioremediation and for water decontamination strategies owing to its remarkable detoxification potential.

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Suitability of Immobilized Pseudomonas fluorescens SM1 Strain for Remediation of Phenols, Heavy Metals, and Pesticides from Water

Cited by 39 publications

References 57 publications

Effects of Pseudomonas fluorescens Seed Bioinoculation on Heavy Metal Accumulation for Mirabilis jalapa Phytoextraction in Smelter-Contaminated Soil

Effects of Pseudomonas fluorescens Seed Bioinoculation on Heavy Metal Accumulation for Mirabilis jalapa Phytoextraction in Smelter-Contaminated Soil

The Potential of Indigenous Bacteria for Removing Cadmium from Industrial Wastewater in Lawang, East Java

Detoxification Potential of Pseudomonas fluorescens SM1 Strain for Remediation of Major Toxicants in Indian Water Bodies

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