Structural insights into the role of NahX from Pseudomonas sp. MC1 in the naphthalene degradation pathway DOI

Jonghyeon Son,

Ae Kyung Park, Seung Chul Shin

et al.

Biochemical and Biophysical Research Communications, Journal Year: 2024, Volume and Issue: 742, P. 151120 - 151120

Published: Dec. 7, 2024

Language: Английский

Biofilm-mediated bioremediation of xenobiotics and heavy metals: a comprehensive review of microbial ecology, molecular mechanisms, and emerging biotechnological applications DOI

Amirhossein Sarkar,

Surajit Bhattacharjee

3 Biotech, Journal Year: 2025, Volume and Issue: 15(4)

Published: March 7, 2025

Language: Английский

Citations

2

Bioremediation Potential of Indigenous Bacterial Isolates for Treating Petroleum Hydrocarbons-Induced Environmental Pollution DOI Creative Commons

Madeeha Mehboob,

Abdul Rehman, Irum Naz

et al.

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

This study isolates oil-degrading bacteria from contaminated soil in automobile workshops, aiming to address environmental pollution petroleum spills. Nineteen bacterial were screened, with three S4 (Lysinibacillus macroides), M8 (Serratia marcescens), and M9 (S. showing significant oil degradation potency. In shake flask assays, degraded 57.8%, 60.2%, 58.1% of at a 5% concentration. Molecular identification through 16S rRNA gene sequencing confirmed these strains. Plate assays also supported the potential, growth zones 38.4 ± 1.3 mm (S4), 39.7 1.9 (M8), 41.2 1.7 (M9). Gas chromatography-mass spectrometry analysis treated indicated presence hydrocarbons, phenolic compounds, esters, suggesting microbial interactions, potentially involving breakdown or transformation complex hydrocarbons into simpler compounds by enzymes. These results highlight potential strains, particularly S4, for bioremediation petroleum-contaminated sites.

Language: Английский

Citations

0

Effects of Environmental Chemical Pollutants on Microbiome Diversity: Insights from Shotgun Metagenomics DOI Creative Commons
Seid Muhie, Aarti Gautam, John E. Mylroie

et al.

Toxics, Journal Year: 2025, Volume and Issue: 13(2), P. 142 - 142

Published: Feb. 19, 2025

Chemical exposure in the environment can adversely affect biodiversity of living organisms, particularly when persistent chemicals accumulate over time and disrupt balance microbial populations. In this study, we examined how chemical contaminants influence microorganisms sediment overlaying water samples collected from Kinnickinnic, Milwaukee, Menomonee Rivers near Wisconsin, USA. We characterized these using shotgun metagenomic sequencing to assess microbiome diversity employed analyses quantify more than 200 compounds spanning 16 broad classes, including pesticides, industrial products, personal care pharmaceuticals. Integrative differential comparative combined datasets revealed that density, approximated by adjusted total sequence reads, declined with increasing concentrations. Protozoan, metazoan, fungal populations were negatively correlated higher concentrations, whereas certain bacterial (particularly Proteobacteria) archaeal showed positive correlations. As expected, exhibited concentrations a wider dynamic range compared samples. Varying levels contamination appeared shape distribution taxa, some bacterial, protozoan present only at sites or specific sample types (sediment versus water). These findings suggest may be linked both type concentration present. Additionally, study demonstrates potential roles multiple kingdoms degrading environmental pollutants, emphasizing metabolic versatility bacteria archaea processing complex such as polyaromatic hydrocarbons bisphenols. Through functional resistance gene profiling, observed multi-kingdom consortia—including bacteria, fungi, protozoa—can contribute bioremediation strategies help restore ecological contaminated ecosystems. This approach also serve valuable proxy for assessing well their effects on biodiversity.

Language: Английский

Citations

0

Comparative Evaluation of Pyrene-Degrading Potential of Three Gram-Negative Bacterial Strains: Acinetobacter baumannii BJ5, Acinetobacter pitti NFL, and Enterobacter cloacae BT DOI

Bineypreet Kaur,

Shailendra Kumar Arya, Jaspreet Kaur

et al.

Biocatalysis and Agricultural Biotechnology, Journal Year: 2025, Volume and Issue: unknown, P. 103564 - 103564

Published: March 1, 2025

Language: Английский

Citations

0

Bacillus Subtilis as an Excellent Microbial Treatment Agent for Environmental Pollution: A Review DOI

Zhuoman Wang,

Zhongyuan Li,

Chuyue Gao

et al.

Biotechnology Journal, Journal Year: 2025, Volume and Issue: 20(4)

Published: April 1, 2025

ABSTRACT The use of microorganisms in environmental biotreatment is gaining attention, particularly Bacillus subtilis (B. subtilis) , recognized for its effectiveness wastewater treatment and soil remediation. Its success stems from diverse biological activities adaptability, which improve quality ecological balance. This paper reviews the remediation capabilities mechanisms B. focusing on applications water purification pollution management. facilitates pollutant degradation adsorption through enzyme production, organic acids, unique cell wall properties, interactions with other microorganisms. article addresses current challenges future directions, emphasizing need enhanced cultivation, screening, genetic engineering functional strains. Understanding these strains studying their toxicological impacts are essential optimizing microbial remediation, providing both theoretical practical foundations bioremediation efforts.

Language: Английский

Citations

0

Biodegradation of crude oil using bacterial strains isolated from the oil contaminated soil of Shakar Dara oil fields of Pakistan DOI

S. Bahar,

Abdul Rehman,

Muhammad Saqib Malik

et al.

Bioremediation Journal, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 11

Published: Nov. 15, 2024

Oil spillage is an important environmental concern especially in areas near to the oil fields. Microorganisms present one of most suitable and sustainable way degradation soil remediation for reuse. The study was based on identification degrading bacteria isolated from contaminated soils located Shakar Dara fields Kohat District, Pakistan. rate by selected bacterial isolates required optimum pH temperature conditions were also assessed study. Out total 15 isolates, 12 had noticeable abilities. In hydrocarbons sensitivity assays using 5% crude oil, 04 denoted as M1, M2A, M3 M7 displayed maximum growth chosen further optimization. observed at 7 a mesophilic range (37 °C–40 °C). identified Stenotrophomonas, Bacillus while, M2A Salmonella spp. respectively. efficiency Stenotrophomonas sp. M1 43% followed that 34%. It concluded indigenous strains specifically aid removal organic contaminants probably owing some specific enzyme systems synthesized bacteria. novel being capable oils will help understanding activated machinery development technology bioremediation such areas.

Language: Английский

Citations

1

Variability of PAH Patterns in Upper Forest Soil (Sub)horizons—A Case Study From South‐Central Poland DOI
Sabina Dołęgowska, Agnieszka Sołtys, Karina Krzciuk

et al.

Land Degradation and Development, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 20, 2024

ABSTRACT Polycyclic aromatic hydrocarbons (PAHs) are a class of contaminants characterized by their persistent and toxic nature. This study examines the variability in PAH distribution patterns upper layers forest soils, focusing on influence different characteristics individual soil (sub)horizons. A total 130 samples were collected from five areas south‐central Poland analyzed for 16 priority PAHs. Samples taken organic fermentative‐humic (Ofh), humic (A), humic‐eluvial (AE) The highest mean concentrations PAHs found subhorizon‐Ofh (Ofh—1547 μg kg −1 , A—1103 AE—109 ). content was significantly correlated with SOM pH, but this correlation only significant horizon‐A. percentage contributions 3‐, 4‐, 5‐, 6‐ring compounds to varied among investigated had contribution PAHs, 4‐ 5‐ring most prevalent horizon‐A, while 3‐ring horizon‐AE. also reflected ratios (BaA/BaA+Chr, IcdP/IcdP+BghiP), confirming behavior these suggests that retention (sub)horizons is influenced several factors, including degree decomposition, mineral fraction, each extent. Our findings reveal knowledge gaps regarding accumulation (sub)horizons, underscoring need further research.

Language: Английский

Citations

0

Environmental Impact and Decompsition of Polycyclic Aromatic Hydrocarbons (PAHs) in Urban Soils: Challenges and Future Directions DOI
Mehmet Emre,

Rubiyatno Rubiyatno,

Jovale Vincent Tongco

et al.

Tropical Aquatic and Soil Pollution, Journal Year: 2024, Volume and Issue: 4(2), P. 111 - 126

Published: Oct. 27, 2024

The rapid pace of urbanization and development has led to an increasing global concern over polycyclic aromatic hydrocarbons (PAHs) due their persistent widespread presence in the environment, posing significant threats ecosystems human health. PAHs originate from both natural human-made sources can be categorized based on origin into pyrogenic, petrogenic, biogenic products. Upon entering undergo various chemical biological transformations, movement occurs through processes such as air-to-soil soil-to-air transport. Composting, a green cost-effective technology, offers promising solution for PAH remediation. This process, which includes mesophilic, thermophilic, cooling, maturing stages, yield compost that is useful fertilizer soil amendment agriculture. success composting depends factors substrate bioavailability, oxygen levels, nutrient supply, environmental conditions. While shown effectiveness reducing it not without challenges, including risk weed infestation, greenhouse gas emissions, odor pollution. main obstacles remediation today are limited bioaccessibility insufficient focus formation oxygenated during process. Future research should address these particularly by improving mitigating issues related emissions.

Language: Английский

Citations

0

Structural insights into the role of NahX from Pseudomonas sp. MC1 in the naphthalene degradation pathway DOI

Jonghyeon Son,

Ae Kyung Park, Seung Chul Shin

et al.

Biochemical and Biophysical Research Communications, Journal Year: 2024, Volume and Issue: 742, P. 151120 - 151120

Published: Dec. 7, 2024

Language: Английский

Citations

0