Biotransformation of tributyltin chloride to less toxic dibutyltin dichloride and monobutyltin trichloride by Klebsiella pneumoniae strain SD9

Khanolkar, Dnyanada S.; Dubey, Santosh Kumar; Naik, Milind Mohan

doi:10.1016/j.ibiod.2015.04.030

Cited by 15 publications

(7 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several mechanisms have been proposed for the survival of bacteria in the presence of TBT such as an efflux pump (efflux of TBT outside the isolated cell) and adsorption and biosorption [ 3 , 27 , 28 ]. From Figure 3 it can be seen that DBT was the primary degradation product at concentration between 3.45–28.6 ng/g wet wt and on days 90 to 120 and MBT was detectable at concentrations between 2 and 23 ng/g wet wt, concluding therefore that TBT was degraded in a stepwise manner.…”

Section: Resultsmentioning

confidence: 99%

“…Bioremediation is recognized as a major process for TBT removal and numerous studies have taken place involving the isolation and characterization of TBT resistant and degrading microbes which including the following genera, Klebsiella, Alcaligenes , Aeromonas , Enterobacter , Bacillus , Pseudomonas and Citrobacter [ 3 , 24 , 25 , 26 , 27 , 28 ]. A limited number of bench scale laboratory investigations have taken place to study the behavior of microbes under various concentrations of TBT which included microcosm studies [ 3 , 29 , 30 , 31 ], and media [ 5 , 25 , 26 , 27 , 28 , 32 ], investigations. However, to gain information on the mechanistic reactions and to investigate TBT degradation rates to DBT and MBT by isolated microbes, it is essential that further investigations take place under controlled environmental microcosm and mesocosm conditions.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Microbes a Tool for the Remediation of Organotin Pollution Determined by Static Headspace Gas Chromatography-Mass Spectrometry

et al. 2018

View full text Add to dashboard Cite

Tributyltin (TBT) is one of the most toxic anthropogenic compounds introduced into the marine environment. Despite its global ban in 2008, TBT is still a problem of great concern due to its high affinity for particulate matter, providing a direct and potentially persistent route of entry into benthic sediments. Bioremediation strategies may constitute an alternative approach to conventional physicochemical methods, benefiting from the microorganism’s potential to metabolize anthropogenic compounds. In this work, a simple, precise and accurate static headspace gas chromatography method was developed to investigate the ability of TBT degrading microbes in sedimentary microcosms over a period of 120 days. The proposed method was validated for linearity, repeatability, accuracy, specificity, limit of detection and limit of quantification. The method was subsequently successfully applied for the detection and quantification of TBT and degradation compounds in sediment samples on day 0, 30, 60, 90 and 120 of the experiment employing the principles of green chemistry. On day 120 the concentration of TBT remaining in the microcosms ranged between 91.91 ng/g wet wt for the least effective microbial inoculant to 52.73 ng/g wet wt for the most effective microbial inoculant from a starting concentration of 100 ng/g wet wt.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microbes a Tool for the Remediation of Organotin Pollution Determined by Static Headspace Gas Chromatography-Mass Spectrometry

et al. 2018

View full text Add to dashboard Cite

show abstract

“…TBT and other organotins have been used in industrial applications for PVC production, marine antifouling paints, agricultural pesticides and fungicides, and numerous consumer products and household items [1,[3][4][5][6][7][8]. Consequently, this widespread use has led to an environmental presence in soil, sediment, water and biota where it has been detected in coastal waters at concentrations of ≥500 ng Sn/l and in harbours and shipping lane sediments up to 16,800 ng Sn/g [1].…”

Section: Introductionmentioning

confidence: 99%

“…Restoring TBT contaminated ecosystems using nature-based solutions, such as bioremediation, is both non-invasive and sustainable. Several studies have suggested marine and estuarine bacterial are the primary pathway for TBT removal via biological degradation, in particular the genera, Alcaligenes, Aeromonas, Enterobacter, Bacillus and Pseudomonas [5,8,[16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…Combining these methods could represent an environmentally friendly, cost-effective and carbon neutral way to clean up pollutants specifically when compared to physicochemical methods such as thermal treatment, steam striping and chemical oxidation or direct disposal via landfilling [2,5,8,23]. Moreover, nature-based solutions can improve resource efficiency by providing a range of alternative sources of energy from resulting by-product such as biofuels and biomaterials ( Figure 1).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Developing Microbial Inocula to Support Biofuel Crop Cultivation on Tributyltin Contaminated Marine Sediments

Finnegan¹,

Ryan²,

Enright³

et al. 2017

JAEM

View full text Add to dashboard Cite

Tributyltin (TBT) is a synthetic organotin compound and is recognised as the most toxic chemical ever knowingly introduced into the marine environment. Organotins have a wide range of application with an estimated global production of 50,000 tons per year therefore impacts from TBT can be seen or anticipated in many environments including protected areas like aqua farms and world heritage sites effecting aquaculture and undisturbed ecosystems. Due to the impact of TBT a necessity exists for the treatment of contaminated sediment and soil using nature-based solutions as it is both non-invasive and sustainable. However these remediation techniques must also be economically interesting to increase its acceptance. Thus using the biomass from plant species with the ability to cultivate in dredged sediment for biofuel and biomaterials production should be considered to ensure that renewable energy consumption of 10% is meet by 2020. The objectives of this study is to investigate the potential of Hordeum vulgare and Brassica napus to cultivate in marine sediments despite the salinity and TBT pollution for a 30 day pot trial. Further to inoculate seedling roots with known TBT degrading bacteria to enhance the phytoremediation capacity. Also to establish if bacterial isolates C7 and C22 are plant growth promoting bacteria. Statistical analysis on seedlings biomass was carried out followed by analytical analyses by atomic absorption spectroscopy (AAS) and sediment analysis by gas chromatography mass spectrometry (GC-MS). Results showed a maximum decrease of ≥ 82% and ≥ 80% of TBT in sediment samples respectively with bacteria inoculum C7 (KX881905) and C22 (KX881904), further Hordeum vulgare seedlings were the ideal candidate plant species with a significant production of biomass.

show abstract

Applications of Siderophore Producing Marine Bacteria in Bioremediation of Metals and Organic Compounds

Gaonkar¹,

Borkar²

2016

Marine Pollution and Microbial Remediation

View full text Add to dashboard Cite

Biotransformation of tributyltin chloride to less toxic dibutyltin dichloride and monobutyltin trichloride by Klebsiella pneumoniae strain SD9

Cited by 15 publications

References 36 publications

Microbes a Tool for the Remediation of Organotin Pollution Determined by Static Headspace Gas Chromatography-Mass Spectrometry

Microbes a Tool for the Remediation of Organotin Pollution Determined by Static Headspace Gas Chromatography-Mass Spectrometry

Developing Microbial Inocula to Support Biofuel Crop Cultivation on Tributyltin Contaminated Marine Sediments

Applications of Siderophore Producing Marine Bacteria in Bioremediation of Metals and Organic Compounds

Contact Info

Product

Resources

About