Bacillus thuringiensis a promising bacterium for degrading emerging pollutants

Ferreira, Laura; Rosales, Emílio; Danko, Anthony S.; Sanromán, M. Ángeles; Pazos, Mercedes Suárez

doi:10.1016/j.psep.2015.05.003

Cited by 63 publications

(29 citation statements)

References 36 publications

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“…Previous studies on successful biodegradation of PAHs and imidacloprid (pesticide) by B. thuringiensis has been reported (Ferreira et al . ; Tarafdar and Sinha ). In the current study, Fig.…”

Section: Resultsmentioning

confidence: 99%

Biodegradation of anthracene by a newly isolated bacterial strain,Bacillus thuringiensisAT.ISM.1, isolated from a fly ash deposition site

Tarafdar

Sinha

Masto

2017

Lett Appl Microbiol

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Polycyclic aromatic hydrocarbons (PAHs) are recognized as significant health risks and consequently listed as priority pollutants by environmental protection agencies across the globe. The aim of the present study was to degrade one of the important PAHs, anthracene, by a newly isolated Bacillus thuringiensis strain. This is the first report of anthracene degradation by B. thuringiensis. This is also the very first growth kinetic study of a bacteria in an anthracene-containing medium. Some diphenol metabolites were found for the first time as anthracene biodegradation by-products, which can be an indication towards a new pathway.

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Section: Resultsmentioning

confidence: 99%

Biodegradation of anthracene by a newly isolated bacterial strain,Bacillus thuringiensisAT.ISM.1, isolated from a fly ash deposition site

Tarafdar

Sinha

Masto

2017

Lett Appl Microbiol

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“…Maiti et al 46 investigated B. thuringiensis isolated from a petroleum-contaminated site and reported that the maximum degradation of the polycyclic aromatic hydrocarbons (PAHs) fluoranthene and pyrene occurred in the presence of Tween 80, a www.nature.com/scientificreports www.nature.com/scientificreports/ nonionic surfactant that increases the solubility of hydrocarbons, thus increasing their bioavailability. Ferreira et al 47 registered the potential of B. thuringiensis strains isolated from marine sediments to degrade emerging pollutants such as PAHs and pesticides.…”

Section: Discussionmentioning

confidence: 99%

Petroleum-Tolerant Rhizospheric Bacteria: Isolation, Characterization and Bioremediation Potential

Viesser

Sugai-Guérios

Malucelli

et al. 2020

Sci Rep

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petroleum is an important energy source. Due to its intensive exploration, accidents resulting in oil spills on soil are frequent, which creates consequences to ecosystems and human health. Rhizodegradation is an efficient technique that promotes the decontamination of polluted environments through the selection and use of rhizosphere microorganisms from phytoremediation plants. the aim of this study was to isolate, identify and characterize bacteria capable of degrading petroleum from the rhizosphere of Panicum aquaticum poir., a plant that grows in petroleum contaminated soils. three bacteria were isolated and characterized at the morphological (Gram staining), molecular (16S rRNA gene sequence analysis) and biochemical level. These bacteria were identified as new strains of Bacillus thurigiensis, Bacillus pumilus and Rhodococcus hoagii, which have been reported as potential bioremediators in the literature. All three bacteria were able to use petroleum hydrocarbons as the sole carbon source during in vitro degradation assays. Gas chromatography analysis of these assays indicated reductions of petroleum hydrocarbons between 23% and 96% within 48 h. Among the isolated bacteria, Rhodococcus hoagii presented the highest efficiency of petroleum consumption, reaching 87% of degradation after only 24 h of cultivation, which corresponds to a higher and faster degradation than previously reported, confirming the potential use of Rhodococcus hoagii for petroleum biodegradation. Petroleum has a complex composition formed predominantly by aliphatic and aromatic hydrocarbons, and lower concentrations of asphaltenes, resins and metals. In turn, petroleum composition varies according to the geographical localization and physical, chemical and biological conditions of the environment where it is formed 1. Many compounds present in petroleum are toxic, mutagenic or carcinogenic 2. The effects of naphthalene in humans, for example, include skin irritation, red blood cells breakdown and nephrotoxicity 2,3. Petroleum spills into the environment result from the high volume of petroleum used as raw material for energy and chemicals production as well as the accidents during operating processes, transportation, refining, storage and consumption 4,5. In contact with the environment, petroleum undergoes changes in its original characteristics, due to the interaction between physical and biological factors 6,7. The persistence of petroleum hydrocarbons in the environment is a result of their slow biodegradation and can compromise quality of water resources and the soil and may be accumulated in food, such as vegetables, muscles and fish 2,8. Environment-friendly approaches have been proposed to remediate petroleum-contaminated environments. According to Pandey et al. 9 and Paul et al. 10 , bioremediation is widely used in environmental decontamination due to its relatively lower costs and higher efficiency when compared to chemical and physical remediation techniques. Bioremediation is based on the metabolization of pollutants through ...

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“…Defining bacterial species is an ongoing debate and it is no different for Bacillus genus, in which about 70 species from distinct environments are of great technological interest, making the isolation of new strains strategic for several fields, from the pharmacology to the bioremediation of pollutants. Bacillus strains have been isolated, for instance, from cassava fermented products [39] as well as from petroleum refinery effluent [40]. Sidkey and Al hadry [41] demonstrated the ability of B. cereus B7, for instance, to synthesize biosurfactant with antimicrobial activity against Candida albicans, Staphylococcus aureus and Pseudomonas aeruginosa, whilst Tuleva et al [42] were the first to register a B. cereus strain able to produce a ramnolipid biosurfactant under aerobiosis using naftalene (2%), n-alkanes or crude and vegetable oils as only sources of carbon.…”

Section: Discussionmentioning

confidence: 99%

“…B. thuringiensis, is commonly found in soil, phylloplanes, fresh water, marine sediments, as well as in activated sludges of a sewage treatment plant [47,48] and agro-industrial residues [49]. Ferreira et al [40] found a strain of B. thuringiensis in contaminated marine sediments able to degrade pollutants such as phenanthrene and imidacloprid. The entomopathogenic and antifungal properties of B. thuringiensis are very well known, and the lipopeptide biosurfactant produced by its strain pak2310, like the commercial surfactin obtained from other Bacillus, albeit with a lower molecular weight, inhibits the fungus Fusarium oxysporum -an emerging human pathogen.…”

Section: Discussionmentioning

confidence: 99%

Biosurfactant Production by Bacillus strains isolated from sugar cane mill wastewaters

Santos

Miranda²,

Silva

et al. 2019

Braz. arch. biol. technol.

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Biosurfactants possess diverse chemical properties and provide important characteristics to the producing microorganisms, which can act as surface-actives and emulsifiers of hydrocarbon and others water insoluble substances. Most of them are lipopeptides synthetized by Bacillus. This study evaluated the biosurfactant production by strains of Bacillus previously obtained from liquid residues of sugar-alcohol industry. The bacterial isolates LBPMA: BSC, BSD, J1, J2 and L1 were cultivated in medium that induces production of biosurfactants (Landy medium). During 48 h of incubation, at intervals of 12 h, the total contents of proteins, reducing carbohydrates and surfactant activity of the filtrated growth media free of cells were evaluated. The results showed that these strains use glucose as a source of carbon, energy and for synthesis of surfactant. In this medium (24 h), the best producer of biosurfactant was the strain LBPMA-J2, molecularly identified HIGHLIGHTS • Interest in biosurfactants has increased in the last two decades. • Surfactin from Bacillus is one of the most effective biosurfactants. • Bacillus species are known as the main producers of extracellular enzymes. • Isolation of new strains is strategic for several fields of biotechnology. Santos, E.C.L.; et al.

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Bacillus thuringiensis a promising bacterium for degrading emerging pollutants

Cited by 63 publications

References 36 publications

Biodegradation of anthracene by a newly isolated bacterial strain,Bacillus thuringiensisAT.ISM.1, isolated from a fly ash deposition site

Biodegradation of anthracene by a newly isolated bacterial strain,Bacillus thuringiensisAT.ISM.1, isolated from a fly ash deposition site

Petroleum-Tolerant Rhizospheric Bacteria: Isolation, Characterization and Bioremediation Potential

Biosurfactant Production by Bacillus strains isolated from sugar cane mill wastewaters

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