Enhancement of heavy metal phytoremediation by Alnus firma with endophytic Bacillus thuringiensis GDB-1

Babu, A. Giridhar; Kim, Jong-Dae; Oh, Byung‐Taek

doi:10.1016/j.jhazmat.2013.02.014

Cited by 277 publications

(72 citation statements)

References 48 publications

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“…The rate of metal uptake with Treatment A was higher than Treatment B and could be due to differences in physiology of the plants or growth rate and higher biomass of the plant. An effective bioremediation of metal is when the metal is removed at more than 65% [16]. The removal of Ni from the leachate contaminated soil again revealed that higher removal was recorded when Treatment A plant was used in this study.…”

Section: E Uptake Modelling Of Heavy Metalmentioning

confidence: 61%

Potential of Cordyline sp Plant for Remediation of Metal-Leachate Contaminated Soil

Jayanth¹,

Emenike²,

Agamuthu³

et al. 2017

IJCEA

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Abstract-Heavy metals are extremely persistent in the environment and cannot degrade through chemical process, hence the long term accumulation cause induce to the environment. Soil is one of the major sink to heavy metal contamination due human activities associated to the development of global economies. Metals from waste stream, especially landfill leachate impact the soil and there is need to develop remedial option for the environmental safety of soil core. Various plants have been used to remedy polluted soil, yet metal interaction with plant differ with respect to medium or source of metal pollution. Phytoremediation technology is an alternative and cheaper approach for remediation of metal contaminated soil. Plant-based remediation is one of the most significant sustainable techniques to cope with overwhelming consequences of pollutants. Therefore this study aimed to study the potential of Cordyline sp plant and Durianta variegated for the phytoremediation of heavy metals (Pb, As, Mn, Ni, and Cr) from the leachate contaminated soil. The results showed that Cordyline sp plants tends to accumulate high amounts of this metals compared to Durianta variegated and control. Cordyline sp was able to remove 63 % of Pb, 90 % of As, 78.8 % of Mn, 88.9 % of Ni and 75 % of Cr from the metal polluted soil. The removal of heavy metal from the contaminated soil was significantly higher compared to control at P > 0.05. The highest heavy metal removal rate constant was obtained for As and Ni at same rate of 0.018 mg/kg day -1 when Cordyline sp plants were used. Therefore we can conclude that, Cordyline sp have a potential to remediate heavy metal contaminated soil at a significant level.

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Section: E Uptake Modelling Of Heavy Metalmentioning

confidence: 61%

Potential of Cordyline sp Plant for Remediation of Metal-Leachate Contaminated Soil

Jayanth¹,

Emenike²,

Agamuthu³

et al. 2017

IJCEA

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“…It may be easy to assume that Treatment A will be more promising than others will, considering that Bacillus sp has been reported to be a good remediation agent, especially B.thuringiensis, International Journal of Bioscience, Biochemistry and Bioinformatics Volume 7, Number 3, July 2017 B.cereus and B.anthracis [5], [12], [13]. However, Lysinibacillus sp often show pronounced bioremediation impact by providing a metal binding site [14], and could be the reason why Treatment B recorded the highest reduction level than others.…”

Section: International Journal Of Bioscience Biochemistry and Bioinfmentioning

confidence: 99%

“…However, when microbes are properly engineered or enhanced with respect to population, biochemical properties and diversity, they tend to optimally metabolize pollutants; metals inclusive [2]. Some bacteria species possess remediation potentials for metal pollution [5], [6]. It implies that bioaugmentation of metal polluted soil with desired microbial strain is of significant interest towards restoration of metal impacted soil.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mixing Individual Isolates for Bioreduction of Metals in Contaminated Soil

Emenike¹,

Izyani²,

Fauziah³

2017

IJBBB

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Bioremediation of metal contaminated soil involves complex processes, and the non-degradable nature of metals makes it more difficult. The known sources of metal pollution are many and adopting a specific remediation procedure for it is often impossible. Microbes found at polluted sites tend to serve as good remediation agents due to perceived environmental potential. Therefore, it is imperative to select bioremediation by enhancing microbes potential as a way of restoring metal polluted site to original or undisturbed state. Hence, this study tried to evaluate the individual effect of bacterial isolates on the remediation of metal polluted soil from landfill, against combined impact of microbes blended together. Soil samples that characterized of Cd 2+ , Cr 2+ , Pb 2+ and Zn 2+ were subjected to bioremediation. Results revealed no more than 50% reduction across the treatments amended with individual isolates. Rather higher metal remediation was observed when individual isolates were mixed prior to application. Therefore, the study suggests that individual isolates from contaminated sites can selectively metabolize to bioreduce metal concentrations. However, a mix of such isolates with manipulation in the concentration level can enhance metal reduction efficiency (>50%).

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“…For instance, it was reported that in legume plants, Cd contamination could result in a decreased uptake of nutrients, inhibition of various enzyme activities, and induction of oxidative stress (Sandalio et al 2001 ) or inhibition of chlorophyll synthesis and photosynthesis (Padmaja et al 1990 ). Actinorhizal plants such as alders have been used for the reclamation of sites contaminated with toxic levels of trace elements (Lefrancois et al 2010 ;Babu et al 2013 ;Lorenc-Pluciñska et al 2013 ). It is currently accepted that the sensitivity to a given heavy metal is variable according to plant species.…”

Section: Alleviation Of Heavy Metal Toxicity In Contaminated Soilsmentioning

confidence: 99%

Plant Microbes Symbiosis: Applied Facets

Arora¹

2015

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Enhancement of heavy metal phytoremediation by Alnus firma with endophytic Bacillus thuringiensis GDB-1

Cited by 277 publications

References 48 publications

Potential of Cordyline sp Plant for Remediation of Metal-Leachate Contaminated Soil

Potential of Cordyline sp Plant for Remediation of Metal-Leachate Contaminated Soil

Effect of Mixing Individual Isolates for Bioreduction of Metals in Contaminated Soil

Plant Microbes Symbiosis: Applied Facets

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