Assessment of the metabolic potential and transformation of aliphatic and polycyclic aromatic hydrocarbons by marine fungi from Mexican coastal and deep-sea environments.
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| Format: | Artículo científico |
| Sprache: | en |
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Marine environmental research
2026
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| author | Olguin, Julio Solís-Weiss, Vivianne Ponce-Vélez, Guadalupe Botello, Alfonso V Figueroa, Mario Walker, Allison K Velez, Patricia |
| author_facet | Olguin, Julio Solís-Weiss, Vivianne Ponce-Vélez, Guadalupe Botello, Alfonso V Figueroa, Mario Walker, Allison K Velez, Patricia Olguin, Julio Solís-Weiss, Vivianne Ponce-Vélez, Guadalupe Botello, Alfonso V Figueroa, Mario Walker, Allison K Velez, Patricia |
| collection | PubMed - marine biology |
| contents | Assessment of the metabolic potential and transformation of aliphatic and polycyclic aromatic hydrocarbons by marine fungi from Mexican coastal and deep-sea environments. Olguin, Julio Solís-Weiss, Vivianne Ponce-Vélez, Guadalupe Botello, Alfonso V Figueroa, Mario Walker, Allison K Velez, Patricia The oil industry represents an environmental threat to marine ecosystems due to the risks of associated pollution. Crude oil is composed of various fractions, including saturated aliphatic and polycyclic aromatic hydrocarbons (PAHs), which are of great concern due to their toxic effects. Fungi are eurytopic heterotrophs that can biotransform complex compounds, making them a potential model for hydrocarbon bioremediation. In this study, we investigated the tolerance and biodegradation of aliphatic saturated hydrocarbons (n-hexadecane and 1-hexadecene) and PAHs (naphthalene, Nap, and benzo[a]pyrene, BaP) by seven microfungal isolates (two distinct genetic lineages of Corollospora maritima, Aspergillus sydowii, A. cejpii, and Aspergillus sp.) obtained in Mexico from marine coastal zones and deep-sea hydrothermal vents. Initial tolerance tests revealed statistically significant differences in growth between hydrocarbon-exposed fungi and controls; however, no significant differences were observed in the utilization bioassays. Measurable decreases in total organic carbon (TOC) and biochemical oxygen demand (BOD) were observed in the culture media after the use of hydrocarbons by fungi, suggesting biotransformation. Notably, gas chromatography coupled to mass spectrometry (GC-MS) confirmed a specific reduction of BaP in inoculated samples compared to controls, suggesting a metabolic potential of these marine fungi to use hydrocarbons for growing. These results highlight the potential use of marine fungi for PAH and aliphatic hydrocarbon remediation, providing a model for evaluating the biodegradative potential and tolerance of marine fungi towards recalcitrant pollutants in the oceans. |
| format | Artículo científico |
| id | pubmed_42229192 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | Marine environmental research |
| record_format | pubmed |
| spellingShingle | Assessment of the metabolic potential and transformation of aliphatic and polycyclic aromatic hydrocarbons by marine fungi from Mexican coastal and deep-sea environments. Olguin, Julio Solís-Weiss, Vivianne Ponce-Vélez, Guadalupe Botello, Alfonso V Figueroa, Mario Walker, Allison K Velez, Patricia Assessment of the metabolic potential and transformation of aliphatic and polycyclic aromatic hydrocarbons by marine fungi from Mexican coastal and deep-sea environments. Olguin, Julio Solís-Weiss, Vivianne Ponce-Vélez, Guadalupe Botello, Alfonso V Figueroa, Mario Walker, Allison K Velez, Patricia The oil industry represents an environmental threat to marine ecosystems due to the risks of associated pollution. Crude oil is composed of various fractions, including saturated aliphatic and polycyclic aromatic hydrocarbons (PAHs), which are of great concern due to their toxic effects. Fungi are eurytopic heterotrophs that can biotransform complex compounds, making them a potential model for hydrocarbon bioremediation. In this study, we investigated the tolerance and biodegradation of aliphatic saturated hydrocarbons (n-hexadecane and 1-hexadecene) and PAHs (naphthalene, Nap, and benzo[a]pyrene, BaP) by seven microfungal isolates (two distinct genetic lineages of Corollospora maritima, Aspergillus sydowii, A. cejpii, and Aspergillus sp.) obtained in Mexico from marine coastal zones and deep-sea hydrothermal vents. Initial tolerance tests revealed statistically significant differences in growth between hydrocarbon-exposed fungi and controls; however, no significant differences were observed in the utilization bioassays. Measurable decreases in total organic carbon (TOC) and biochemical oxygen demand (BOD) were observed in the culture media after the use of hydrocarbons by fungi, suggesting biotransformation. Notably, gas chromatography coupled to mass spectrometry (GC-MS) confirmed a specific reduction of BaP in inoculated samples compared to controls, suggesting a metabolic potential of these marine fungi to use hydrocarbons for growing. These results highlight the potential use of marine fungi for PAH and aliphatic hydrocarbon remediation, providing a model for evaluating the biodegradative potential and tolerance of marine fungi towards recalcitrant pollutants in the oceans. |
| title | Assessment of the metabolic potential and transformation of aliphatic and polycyclic aromatic hydrocarbons by marine fungi from Mexican coastal and deep-sea environments. |
| url | https://pubmed.ncbi.nlm.nih.gov/42229192/ |