Revista Chapingo Serie Ciencias Forestales y del Ambiente
Universidad Autónoma Chapingo
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Revista Chapingo Serie Ciencias Forestales y del Ambiente
Volume XXV, issue 1, January - April 2019
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Obtención de microorganismos en suelos de un bosque de niebla, para la degradación de hidrocarburos aromáticos
Obtaining microorganisms in cloud forest soils for the degradation ofaromatic hydrocarbons

Yair Cruz-Narváez; Enrique Rico-Arzate; José J. Castro-Arellano; Gerardo Noriega-Altamirano; Alberto Piña-Escobedo; Selvasankar Murugesan; Jaime García-Mena

http://dx.doi.org/10.5154/r.rchscfa.2018.06.055

Received: 2018-06-27

Accepted: 2018-11-08

Available online: 2018-11-09 / pages.95-106

 

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  • descriptionAbstract

    Introduction: The impact of polluting substances, especially those of fossil fuels, on theenvironment is an important issue in the world. The ability of microorganisms to degradethese pollutants has been recently studied and characterized.
    Objective:  To analyze the ability of groups of microorganisms, obtained from a cloudforest   ecosystem   in   Mexico,   to   degrade   aromatic   compounds   (benzene,   toluene,ethylbenzene and anthracene).
    Materials and methods: Microbiome samples were collected in the Sierra Madre del Surin the state of Oaxaca. The microorganisms were isolated and identified by moleculartechniques.   Subsequently,   the   ability   of   the   microorganisms   to   degrade   aromatichydrocarbons  in  a   packed-bed  bioreactor   was   quantitatively   evaluated   by  HPLC-PDAchromatography.
    Results   and   discussion:  Fifty  groups of  microorganisms were  collected, cultured  andgenetically characterized. In genetic diversity, Lactobacillus, Prevotella and genera of the2 family Acetobacteraceae predominated. In the hydrocarbon biodegradation process, thepollutant concentration decreased 97 % and 91 % mineralization was achieved in less than25 h.
    Conclusions: The microorganisms showed significant degrading activity of the aromaticcompounds. Biodiversity in the cloud forest  in  the Loxicha region is key to  ensuringecosystem services, so it is important to undertake explorations to evaluate the use of thesebacterial microbiomes.

    Keyworks: Genetic characterization; soil pollutants; Lactobacillus; Prevotella;mineralization
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  • starCite article

    Cruz-Narváez, Y., Rico-Arzate, E., Castro-Arellano, J. J.,  Noriega-Altamirano, G., Piña-Escobedo, A., Murugesan, S., &  García-Mena, J. (2019).  Obtaining microorganisms in cloud forest soils for the degradation ofaromatic hydrocarbons. Revista Chapingo Serie Ciencias Forestales y del Ambiente, XXV(1), 95-106. http://dx.doi.org/10.5154/r.rchscfa.2018.06.055