Microbes and Petroleum Bioremediation

Dellagnezze, Bruna Martins; Gomes, Milene Barbosa; Oliveira, Valéria Maia de

doi:10.1007/978-981-13-1840-5_5

Cited by 2 publications

(2 citation statements)

References 102 publications

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“…At the order level, we found marked enrichment of numerous putative degraders of petroleum, including the anaerobic sulfate reducers such as Petrotogales and Desulfobacterales, as well as the chemotrophic Acidithiobacillales, Halothiobacillales, and Ectothiorhodospirales, among others. Key enriched genera included the OHCB such as Alcanivorax, Marinobacter and Ketobacter, and other hydrocarbon degraders including Mycobacterium (Liew et al, 2014) and various sulfate-reducing anaerobes (e.g., Desulfatiglans, SEEP-SRB1), and tolerant-non OHCB organisms such as Marinobacterium (Dellagnezze et al, 2018). Most interestingly, cyanobacteria were highly enriched in tar (3.8 log2-fold change of Cyanobacteriales, with prominent genera Coleofasciculus and Phormidium, Figure 2).…”

Section: Heterogenous Microbiota Is Associated With Tar Pattiesmentioning

confidence: 99%

Tar patties are hotspots of hydrocarbon turnover and nitrogen fixation during a nearshore pollution event in the oligotrophic southeastern Mediterranean Sea

Rubin‐Blum

Yudkovsky

Marmen

et al. 2023

Preprint

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Weathered oil, that is, tar, forms hotspots of hydrocarbon degradation by complex biota in marine environment. Here, we used marker gene sequencing and metagenomics to characterize the communities of bacteria, archaea and eukaryotes that colonized tar patties and control samples (wood, plastic), collected in the littoral following an offshore spill in the warm, oligotrophic southeastern Mediterranean Sea (SEMS). We show aerobic and anaerobic hydrocarbon catabolism niches on tar interior and exterior, linking carbon, sulfur and nitrogen cycles. Alongside aromatics and larger alkanes, short-chain alkanes appear to fuel dominant populations, both the aerobic clade UBA5335 (Macondimonas), anaerobic Syntropharchaeales, and facultative Mycobacteriales. Most key organisms, including the hydrocarbon degraders and cyanobacteria, have the potential to fix dinitrogen, potentially alleviating the nitrogen limitation of hydrocarbon degradation in the SEMS. We highlight the complexity of these tar-associated communities, where bacteria, archaea and eukaryotes co-exist, exchanging metabolites and competing for resources and space.

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Section: Heterogenous Microbiota Is Associated With Tar Pattiesmentioning

confidence: 99%

Tar patties are hotspots of hydrocarbon turnover and nitrogen fixation during a nearshore pollution event in the oligotrophic southeastern Mediterranean Sea

Rubin‐Blum

Yudkovsky

Marmen

et al. 2023

Preprint

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“…En condiciones favorables, algunos microorganismos presentes en los ecosistemas contaminados tienen la capacidad de utilizar ciertos compuestos orgánicos tóxicos, incluyendo los BTEX, como fuente de energía y de carbono, llegando a mineralizar estos contaminantes a compuestos orgánicos simples como dióxido de carbono y agua (Ugochukwu & Fialips, 2017;Kuhad & Gupta, 2009). Actualmente, se ha identificado gran variedad de bacterias que pueden degradar BTEX bajo condiciones aerobias, bacterias del género Pseudomonas, Acinetobacter, Auriginosas, Comamonas, Bacillus, Burkholderia, Terrimonas, Rodoccocus, Candida (Dellagnezze, Gomes, & Maia de Oliveira, 2018;Claro et al, 2018;Khodaei et al, 2017).…”

Section: Introductionunclassified

Aislamiento y caracterización de bacterias endémicas colombianas con capacidad de degradar tolueno

López‐López

Mahecha

2022

Rev. colomb. biotecnol.

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Los hidrocarburos aromáticos monocíclicos: benceno, tolueno, etilbenceno y xileno (BTEX), presentes en crudo y refinados de petróleo, hacen parte de los compuestos con más impacto en el medio ambiente y la salud humana, debido a su naturaleza cancerígena, mutagénica y altamente tóxica. Esta investigación tuvo como objetivo obtener y caracterizar bacterias capaces de degradar tolueno. Se realizaron tres muestreos de suelo contaminado con hidrocarburos del Valle del Cauca en tres condiciones: gasolinería, derrame accidental y taller mecánico. Se aislaron bacterias capaces de crecer en tolueno vapor como única fuente de carbono y se caracterizaron a nivel morfológico, bioquímico y molecular. Para la caracterización molecular se amplificó, secuenció y analizó con herramientas bioinformáticas el gen ribosomal 16S. Se evaluó la utilización de tolueno directo con concentración al 1% como única fuente de carbono. Se logró aislar 29 bacterias con capacidad de metabolizar tolueno. La caracterización bioquímica y molecular identificó a las bacterias aisladas de suelo contaminado como Pseudomonas y Stenotrophomonas. Las bacterias aisladas en el taller mecánico resultaron ser los microorganismos con mejor crecimiento en tolueno como fuente de carbono, poseen un gran potencial para ser utilizadas para fines de biorremediación de suelos y aguas contaminadas con BTEX.

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Microbes and Petroleum Bioremediation

Cited by 2 publications

References 102 publications

Tar patties are hotspots of hydrocarbon turnover and nitrogen fixation during a nearshore pollution event in the oligotrophic southeastern Mediterranean Sea

Tar patties are hotspots of hydrocarbon turnover and nitrogen fixation during a nearshore pollution event in the oligotrophic southeastern Mediterranean Sea

Aislamiento y caracterización de bacterias endémicas colombianas con capacidad de degradar tolueno

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