Effect of bioemulsificant exopolysaccharide (EPS2003) on microbial community dynamics during assays of oil spill bioremediation: A microcosm study

Cappello, Simone; Genovese, Maria Inês; Torre, Camilla Della; Crisari, Antonella; Hassanshahian, Mehdi; Santisi, Santina; Calogero, Rosario; Yakimov, Michail M.

doi:10.1016/j.marpolbul.2012.07.046

Cited by 46 publications

(14 citation statements)

References 25 publications

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“…We can speculate that it is involved in biodegradation, since this species was isolated from the same hydrocarbon environment as the other known exopolysaccharide producers B. cereus , B. subtilis , and Pseudomonas stutzeri 33 34 35 . The latter are also known for the biodegradation of hydrocarbons 36 37 . There is no study showing that B. litoralis was associated with oil samples from the Deepwater Horizon oil spill disaster, which occurred on April 20, 2010 and was capped on 15 July 2010.…”

Section: Discussionmentioning

confidence: 99%

Surfactant-associated bacteria in the near-surface layer of the ocean

Kurata

Vella

Hamilton

et al. 2016

Sci Rep

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Certain marine bacteria found in the near-surface layer of the ocean are expected to play important roles in the production and decay of surface active materials; however, the details of these processes are still unclear. Here we provide evidence supporting connection between the presence of surfactant-associated bacteria in the near-surface layer of the ocean, slicks on the sea surface, and a distinctive feature in the synthetic aperture radar (SAR) imagery of the sea surface. From DNA analyses of the in situ samples using pyrosequencing technology, we found the highest abundance of surfactant-associated bacterial taxa in the near-surface layer below the slick. Our study suggests that production of surfactants by marine bacteria takes place in the organic-rich areas of the water column. Produced surfactants can then be transported to the sea surface and form slicks when certain physical conditions are met. This finding has potential applications in monitoring organic materials in the water column using remote sensing techniques. Identifying a connection between marine bacteria and production of natural surfactants may provide a better understanding of the global picture of biophysical processes at the boundary between the ocean and atmosphere, air-sea exchange of greenhouse gases, and production of climate-active marine aerosols.

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Section: Discussionmentioning

confidence: 99%

Surfactant-associated bacteria in the near-surface layer of the ocean

Kurata

Vella

Hamilton

et al. 2016

Sci Rep

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“…Capability of Alcanivorax genus to use hydrocarbons as the only sources of energy and organic carbon was widely described (Yakimov et al, 1998;Schneiker et al, 2006). Kasai (2002) and Cappello et al (2012) explain these characteristics in ability of this strain to produce a lipidic bio-surfactant that increases the bioavailability of contaminants and the ability to use them (Yakimov et al, 1998;Schneiker et al, 2006). Alcanivorax borkumensis SK2 surfactant is proposed as one of the most efficient of bacterial surfactants.…”

Section: Discussionmentioning

confidence: 99%

“…For seawater samples, after a short-time (30 00 ) ultrasonic treatment (Ultrasonic Bath Branson 1200, Branson, USA), the total bacterial cell counts were performed by DAPI (4 0 ,6-diamidino -2-phenylindole 2HCl, Sigma-Aldrich S.r.L., Milan, Italy) staining of seawater samples fixed by formaldehyde (2% final concentration), according to Porter and Feig (1980) and Cappello et al (2012).…”

Section: Total Bacterial Abundance (Dapi Count)mentioning

confidence: 99%

Intrinsic bioremediation potential of a chronically polluted marine coastal area

Catania

Santisi

Signa

et al. 2015

Marine Pollution Bulletin

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“…BSs offer a variety of advantages over the chemical surfactants, e. g. better biodegradation, bioavailability, biocompatibility, stability and low toxicity for the environment (Hentati et al, 2019;Mulligan, 2005). Biosurfactants are able to reduce the surface tension of liquids, gases and solids, and thus enable their mixing in the form of emulsions in liquids (Cappello et al, 2012). These facts lead to use of biosurfactants in the fields of food, cosmetic, agriculture, petrochemistry, medicine and pharmacy as antibacterial and antifungal compounds (Banat et al, 2014;Roy, 2017).…”

Section: Introductionmentioning

confidence: 99%

Identification of Lipopeptides Produced by Bacillus Amyloliquefaciens Strains

Bedlovičová

Englerová

Nemcová

et al. 2021

J microb biotech food sci

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In this study we isolated and identified the lipopeptides produced by Bacillus amyloliquefaciens strains 1/6k and 4/9, which were isolated from Adriatic Sea. Lipopeptides belong to the family of cyclic biosurfactants representing a group of surface active compounds produced by various microorganisms. Studied Bacillus spp. strains were able to produce cyclic lipopeptides surfactin, iturin A and fengycin. The characterisation of lipopeptides was studied by various analytical techniques (high-performance liquid chromatography – HPLC and matrix-assisted laser desorption/ionization time-of-flight analysis for molecular mass determination – MALDI-TOF/MS). These methods confirmed co-production of three lipopeptides – surfactin, iturin A and fengycin by Bacillus amyloliquefaciens.

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Effect of bioemulsificant exopolysaccharide (EPS2003) on microbial community dynamics during assays of oil spill bioremediation: A microcosm study

Cited by 46 publications

References 25 publications

Surfactant-associated bacteria in the near-surface layer of the ocean

Surfactant-associated bacteria in the near-surface layer of the ocean

Intrinsic bioremediation potential of a chronically polluted marine coastal area

Identification of Lipopeptides Produced by Bacillus Amyloliquefaciens Strains

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