Degradation of Polyaromatic Hydrocarbons by Biosurfactant-Producing Pseudomonas aeruginosa NG4 DOI Creative Commons

Shivangi Sankhyan,

Prasun Kumar, Soumya Pandit

et al.

Journal of Xenobiotics, Journal Year: 2025, Volume and Issue: 15(1), P. 31 - 31

Published: Feb. 12, 2025

Polyaromatic hydrocarbons (PAHs) are a group of organic pollutants commonly found in the environment due to industrial activities, incomplete burning fossil fuels, and oil spills. Bioremediation PAHs has emerged as promising approach. This study investigated biodegradation (anthracene, naphthalene, phenanthrene, anthraquinone, anthrone) at 100 ppm 1000 presence glucose glycerol by biosurfactant-producing strain Pseudomonas aeruginosa NG4. The quality biosurfactant produced bacterial was analyzed via emulsion index (E24), drop-collapse assay, displacement assay. PAH degradation efficiency studied HPLC metabolites were using GC-MS. Among all five (fed 300 ppm), highest rates 91.16 ± 3.64% naphthalene 41.16 1.64% anthrone observed P. NG4 after 10 days incubation. assessment intermediate revealed catabolism dioxygenase route, which plays key role breakdown these aromatic compounds. Biodegradation level media reported for first time. highlights potential candidate development bioremediation strategies mitigate environmental pollution caused persistent like PAHs.

Language: Английский

Effects from maritime scrubber effluent on phytoplankton and bacterioplankton communities of a coastal area, Eastern Mediterranean Sea DOI
Savvas Genitsaris, Polyxeni Kourkoutmani,

Natassa Stefanidou

et al.

Ecological Informatics, Journal Year: 2023, Volume and Issue: 77, P. 102154 - 102154

Published: June 12, 2023

Language: Английский

Citations

11
Spatial distribution of PAHs, nickel, and vanadium in sediments from a large coastal lagoon near a petroleum extraction area in the southern Gulf of Mexico DOI
Hugo F. Olivares-Rubio, Jorge Feliciano Ontiveros-Cuadras, Omar Celis-Hernández

et al.

Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 207, P. 116901 - 116901

Published: Aug. 31, 2024

Language: Английский

Citations

4
Acute to chronic ratios of aquatic phototoxicity of polycyclic aromatic hydrocarbons and the prediction of chronic phototoxicity using the phototoxic target lipid model DOI Creative Commons

Angeline R. Tillmanns,

Solmaz Marzooghi,

Christopher J. Kennedy

et al.

Environmental Toxicology and Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 6, 2025

Polycyclic aromatic hydrocarbons (PAHs) are a group of organic compounds that can be toxic to aquatic life at environmentally relevant concentrations. The toxicity some PAHs increases in the presence ultraviolet radiation (UVR). phototoxic target lipid model (PTLM) builds on narcotic and predicts acute phototoxicity by accounting for light absorbed PAHs. Given lack chronic data exposed UVR, an acute-to-chronic ratio (ACR) was proposed as means extending this predicting toxicity. No information could found ACRs derived chemicals therefore, study had two objectives: (a) generate with without exposure UVR; (b) test ability PTLM predict using ACR. Acute bioassays were conducted eight species, each three treatments: UVR. Although there general trend higher UVR treatments, no statistical difference across all species ACR values treatments. Data generated herein combined collated through literature search global 11.6. Twenty 24 predicted effect concentration affecting 10% (EC10) calculated within factor 10 observed EC10 or lethal 5% values. This demonstrates capability applied context therefore proposes unprecedented methodology

Language: Английский

Citations

0
Understanding the Molecular Mechanisms of Pyrene in Governing the Critical Metabolic Circuits of Alexandrium pacificum DOI
Xueling Huang, Zhenhao Xu, Jiangbing Qiu

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

Pyrene, a representative polycyclic aromatic hydrocarbon, frequently occurs in aquatic environments and is associated with lethal impacts on humans wildlife. This study examined the impact of pyrene Alexandrium pacificum, dinoflagellate responsible for harmful algal blooms, their capability to bioremove pyrene. In 96 h exposure experiment, A. pacificum effectively reduced concentration seawater 50, 100, 200 μg/L, combined removal efficiency 96% seawater. Furthermore, noted significant reduction synthesis GTX4, GTX1, NEO, GTX3 toxins cells exposed 50 μg/L Concurrently, resulted marked declines growth photosynthetic pacificum. Proteomics analysis results showed an upregulation proteins related endocytosis, such as HSPA Arf, while paralytic shellfish toxin (PST) synthesis, specifically SxtU SxtH, downregulation trend. summary, findings this preliminarily elucidate molecular mechanisms underlying pacificum's response pyrene, reveal PST suggest that holds potential biodegradation.

Language: Английский

Citations

0
Degradation of Polyaromatic Hydrocarbons by Biosurfactant-Producing Pseudomonas aeruginosa NG4 DOI Creative Commons

Shivangi Sankhyan,

Prasun Kumar, Soumya Pandit

et al.

Journal of Xenobiotics, Journal Year: 2025, Volume and Issue: 15(1), P. 31 - 31

Published: Feb. 12, 2025

Polyaromatic hydrocarbons (PAHs) are a group of organic pollutants commonly found in the environment due to industrial activities, incomplete burning fossil fuels, and oil spills. Bioremediation PAHs has emerged as promising approach. This study investigated biodegradation (anthracene, naphthalene, phenanthrene, anthraquinone, anthrone) at 100 ppm 1000 presence glucose glycerol by biosurfactant-producing strain Pseudomonas aeruginosa NG4. The quality biosurfactant produced bacterial was analyzed via emulsion index (E24), drop-collapse assay, displacement assay. PAH degradation efficiency studied HPLC metabolites were using GC-MS. Among all five (fed 300 ppm), highest rates 91.16 ± 3.64% naphthalene 41.16 1.64% anthrone observed P. NG4 after 10 days incubation. assessment intermediate revealed catabolism dioxygenase route, which plays key role breakdown these aromatic compounds. Biodegradation level media reported for first time. highlights potential candidate development bioremediation strategies mitigate environmental pollution caused persistent like PAHs.

Language: Английский

Citations

0