Total Petroleum Hydrocarbon Degradation by Endophytic Fungi from the Ecuadorian Amazon

Marín, F.; Navarrete, Hugo; Narváez-Trujillo, Alexandra

doi:10.4236/aim.2018.812070

Cited by 24 publications

(8 citation statements)

References 60 publications

(65 reference statements)

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“…Therefore, endophytic enzymes have emerged as a promising option in bioremediation of metalcontaminated environment. Similar to this finding, endophytic fungal species belonging to the genera Verticillium and Xylaria isolated from crude oil-contaminated habitats were evaluated and reported for the first time as an efficient petroleum hydrocarbon biodegraders by Marín et al (2018). Likewise, the efficiency of endophytes in degrading the petroleum hydrocarbons has also been reported by Sawant and Rodrigues (2020).…”

Section: Waste Managementsupporting

confidence: 70%

Endophytic Fungi-Mediated Biocatalysis and Biotransformations Paving the Way Toward Green Chemistry

Choudhary

Gupta

Dhar

et al. 2021

Front. Bioeng. Biotechnol.

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Catalysis is a process carried out in the presence of a heterogenous catalyst for accelerating the rate of a chemical reaction. It plays a pivotal role in transition from take, make, and dispose technology to sustainable technology via chemo- and biocatalytic processes. However, chemocatalyzed reactions are usually associated with copious amounts of perilous/hazardous environmental footprints. Therefore, whole-cell biotransformations or enzyme cocktails serve as cleaner biocatalytic alternatives in replacing the classical chemical procedures. These benchmark bioconversion reactions serve as important key technology in achieving the goals of green chemistry by eliminating waste generation at source. For this, nature has always been a driving force in fuelling natural product discovery and related applications. The fungal endophytic community, in particular, has undergone co-evolution with their host plant and has emerged as a powerful tool of genetic diversity. They can serve as a treasure trove of biocatalysts, catalyzing organic transformations of a wide range of substances into enantiopure compounds with biotechnological relevance. Additionally, the biocatalytic potential of endophytic fungi as whole-intact organisms/isolated enzyme systems has been greatly expanded beyond the existing boundaries with the advancement in high-throughput screening, molecular biology techniques, metabolic engineering, and protein engineering. Therefore, the present review illustrates the promising applications of endophytic fungi as biocatalysts for the synthesis of new structural analogs and pharmaceutical intermediates and refinement of existing proteins for novel chemistries.

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Section: Waste Managementsupporting

confidence: 70%

Endophytic Fungi-Mediated Biocatalysis and Biotransformations Paving the Way Toward Green Chemistry

Choudhary

Gupta

Dhar

et al. 2021

Front. Bioeng. Biotechnol.

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“…; OTU55: Phlyctochytrium africanum ; OTU184: Exophiala sp.) as they were already described as potential hydrocarbon degraders [ 46 , 47 , 48 ].…”

Section: Discussionmentioning

confidence: 99%

Response of Poplar and Associated Fungal Endophytic Communities to a PAH Contamination Gradient

Gréau

Blaudez

Heintz

et al. 2022

IJMS

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Microbial populations associated to poplar are well described in non-contaminated and metal-contaminated environments but more poorly in the context of polycyclic aromatic hydrocarbon (PAH) contamination. This study aimed to understand how a gradient of phenanthrene (PHE) contamination affects poplar growth and the fungal microbiome in both soil and plant endosphere (roots, stems and leaves). Plant growth and fitness parameters indicated that the growth of Populus canadensis was impaired when PHE concentration increased above 400 mg kg−1. Values of alpha-diversity indicators of fungal diversity and richness were not affected by the PHE gradient. The PHE contamination had a stronger impact on the fungal community composition in the soil and root compartments compared to that of the aboveground organs. Most of the indicator species whose relative abundance was correlated with PHE contamination decreased along the gradient indicating a toxic effect of PHE on these fungal OTUs (Operational Taxonomic Units). However, the relative abundance of some OTUs such as Cadophora, Alternaria and Aspergillus, potentially linked to PHE degradation or being plant-beneficial taxa, increased along the gradient. Finally, this study allowed a deeper understanding of the dual response of plant and fungal communities in the case of a soil PAH contamination gradient leading to new perspectives on fungal assisted phytoremediation.

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“…Roussoella isolated from contaminated soil grows in the presence of toluene, hexadecane, and polychlorinated biphenyls (PCB) and utilizes ligninolytic enzymes for wood degradation [110]. Perenniporia [111], Saccharicola, and Diaporthe were reported as petroleum hydrocarbon degraders [112] with potential bioremediation functions, but the latter strains were isolated from leaf and stem tissues from plants that were growing in soil contaminated with crude oil and were not isolated from the contaminated soil itself [113]. Gongronella is capable of degrading hydrocarbons [114], including pyrene [115].…”

Section: Fungimentioning

confidence: 99%

Diversity and Oil Degradation Potential of Culturable Microbes Isolated from Chronically Contaminated Soils in Trinidad

Ramdass

Rampersad

2021

Microorganisms

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Trinidad and Tobago is the largest producer of oil and natural gas in Central America and the Caribbean. Natural crude oil seeps, in addition to leaking petroleum pipelines, have resulted in chronic contamination of the surrounding terrestrial environments since the time of petroleum discovery, production, and refinement in Trinidad. In this study, we isolated microbes from soils chronically contaminated with crude oil using a culture-dependent approach with enrichment. The sampling of eight such sites located in the southern peninsula of Trinidad revealed a diverse microbial composition and novel oil-degrading filamentous fungi and yeast as single-isolate degraders and naturally occurring consortia, with specific bacterial species not previously reported in the literature. Multiple sequence comparisons and phylogenetic analyses confirmed the identity of the top degraders. The filamentous fungal community based on culturable species was dominated by Ascomycota, and the recovered yeast isolates were affiliated with Basidiomycota (65.23%) and Ascomycota (34.78%) phyla. Enhanced biodegradation of petroleum hydrocarbons is maintained by biocatalysts such as lipases. Five out of seven species demonstrated extracellular lipase activity in vitro. Our findings could provide new insights into microbial resources from chronically contaminated terrestrial environments, and this information will be beneficial to the bioremediation of petroleum contamination and other industrial applications.

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Total Petroleum Hydrocarbon Degradation by Endophytic Fungi from the Ecuadorian Amazon

Cited by 24 publications

References 60 publications

Endophytic Fungi-Mediated Biocatalysis and Biotransformations Paving the Way Toward Green Chemistry

Endophytic Fungi-Mediated Biocatalysis and Biotransformations Paving the Way Toward Green Chemistry

Response of Poplar and Associated Fungal Endophytic Communities to a PAH Contamination Gradient

Diversity and Oil Degradation Potential of Culturable Microbes Isolated from Chronically Contaminated Soils in Trinidad

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