BACTERIAS DEGRADADORAS DE HIDROCARBUROS AISLADAS EN SUELOS CONTAMINADOS DE PETROLEO Aislar cepas bacterianas y. Aislamiento de bacterias potencialmente degradadoras de petróleo en hábitats de ecosistemas costeros en la Bahía de Cartagena, Colombia. Download Citation on ResearchGate | SELECCIÓN DE BACTERIAS CON CAPACIDAD DEGRADADORA DE HIDROCARBUROS Estudio y selección de bacterias aerobias degradadoras de hidrocarburos del petróleo aisladas de costas.

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BACTERIAS DEGRADADORAS DE HIDROCARBUROS by Mirelly Katherine Diaz Gamarra on Prezi

Monocyclic and polycyclic aromatic hydrocarbon fractions were analyzed by FTIR spectroscopy, as described in Materials and Methods. SPE International conference on health, safety, and environment in oil and gas exploration and production, JuneCaracas, Venezuela.

A Mycobacterium strain with extended capacities for degradation of gasoline hydrocarbons. Degraaddoras species of this genus have been isolated from marine environments contaminated with hydrocarbons [5, 17, 28].

All spectra were processed using the Omnic v5. Measures taken after the Exxon Valdez spill included the addition of nutrients in the form of fertilizers Inipol EAP 22 and Customblerwhich increased the rate of oil removal by three-fold [6].

Phenotypic characterization of the strains The strains were characterized phenotypically using previously described morphological, physiological and biochemical tests [], using previously defined criteria to describe culture characteristics [13]. Microbiol Mol Biol Rev. We were unable to find previous mentions in the literature of the presence of these microorganisms in hydrocarbon-contaminated environments.


No statistically significant differences were found for this parameter among the examined strains, although the increased proportion of carboxyl and hydroxyl groups demonstrates the presence of biological oxidation processes.

This phenomenon was more pronounced for strains F10S and F9S, which did not exhibit statistically significant differences when compared in this regard, but did so when compared to strain F1FLC. Biodegradability of Venezuela crude oils. Microbial diversity in a hydrocarbon- and chlorinated-solvent-contaminated aquifer undergoing intrinsic bioremediation.

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The degradation potential exhibited by these new isolates warrants further studies bacrerias their possible application to decontaminate coastal environments affected by oil spills. At the end, 18 strains representing each unique combination of these parameters were chosen to be subjected to the selection process. Strain isolation The primary selection process employed two different discrimination protocols, denominated here protocol A modified from [8] and B modified from [9].

Asphaltenes were precipitated with n-pentane. Taxonomy of aerobic marine eubacteria.

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This decrease in isoprenoids is a telltale sign of effective biodegradation; whereas strain F1FLC exhibits values above those of the abiotic control. Effectiveness of the natural bacterial flora, bioestimulation and bioaumentation on the bioremediation of a hydrocarbon contaminated Dee soil.

Two of these strains were phenotypically identified as sp. No alkanes with backbones shorter than 12 carbon atoms were detected in these samples. Biodegradation of Polycyclic Aromatic Hydrocarbons.

Hydrocarbon determinations Hydrocarbon determinations were performed at day Two of the strains were also able to decrease C Each strain was assayed in triplicate. Bioremediation of petroleum-and creosote-contaminated soils: Based on our results, however, together with the existing literature, it is possible to make some inferences. Biochemical characterization of the strains comprised tests for the fermentation of glucose, lactose, sucrose and mannitol, as well as for the production of indole, gas and hydrogen bcaterias.


Introduction to the Archaea by JuanCho Rios on Prezi

Bioremediation potential of terrestrial fuel spills. Appl Environ Microbiol ;63 9: Simultaneous degradation of atrazine and phenol by Pseudomonas sp. Since hydrocarbon determinations were performed solely at the end of petrolro study day 45no data are available to evaluate the biodegradation process in earlier time points. This probably explains the high number of hydrocarbon-degrading microorganisms identified through isolation protocols A and B, which totaled 33 strains.

Publications reporting the presence of this genus in hydrocarbon-contaminated ecosystems and describing its hydrocarbon-degrading abilities have appeared in the literature from the early nineties [17], although its numbers have increased as of late bacferias, 24, 25, 31, 32].

Biodegradation of crude oil contaminating marine shorelines and freshwater wetlands.

Molecular analysis of surfactant-driven microbial population shifts in hydrocarbon-contaminated soil.