Chronic Environmental Perturbation Influences Microbial Community Assembly Patterns DOI Creative Commons
Lloyd D. Potts, Alex Douglas, Luis J. Perez Calderon

et al.

Environmental Science & Technology, Journal Year: 2022, Volume and Issue: 56(4), P. 2300 - 2311

Published: Feb. 1, 2022

Acute environmental perturbations are reported to induce deterministic microbial community assembly, while it is hypothesized that chronic promote development of alternative stable states. Such acute or strongly impact on the pre-adaptation capacity perturbation. To determine importance level and assembly processes following in context hydrocarbon contamination, a model system pristine polluted (hydrocarbon-contaminated) sediments was incubated absence presence (discrete repeated) amendment. The structure changed significantly perturbation, with selection different phylotypes not initially detectable. Conversely, historically maintained initial structure, historical legacy effect pollution likely facilitated stability. An state also reached further demonstrating existence effect. Finally, ecosystem functional resilience demonstrated through occurrence degradation by communities tested sites, but perturbation influenced biotic response. This study therefore demonstrates chronicity reveals

Language: Английский

A crucial review on polycyclic aromatic Hydrocarbons - Environmental occurrence and strategies for microbial degradation DOI

N. Premnath,

K. Mohanrasu,

G. Ravi

et al.

Chemosphere, Journal Year: 2021, Volume and Issue: 280, P. 130608 - 130608

Published: April 28, 2021

Language: Английский

Citations

256
Improved polycyclic aromatic hydrocarbon degradation in a crude oil by individual and a consortium of bacteria DOI
Kumari Smita, Raj Kumar Regar, Natesan Manickam

et al.

Bioresource Technology, Journal Year: 2018, Volume and Issue: 254, P. 174 - 179

Published: Jan. 31, 2018

Language: Английский

Citations

205
Biotechnologies for Marine Oil Spill Cleanup: Indissoluble Ties with Microorganisms DOI
Francesca Mapelli, Alberto Scoma, Grégoire Michoud

et al.

Trends in biotechnology, Journal Year: 2017, Volume and Issue: 35(9), P. 860 - 870

Published: May 13, 2017

Language: Английский

Citations

187
Microbial biosurfactants: a review of recent environmental applications DOI Open Access

Estefanía Eras-Muñoz,

Abel Farré,

Antoni Sánchez

et al.

Bioengineered, Journal Year: 2022, Volume and Issue: 13(5), P. 12365 - 12391

Published: May 2, 2022

Microbial biosurfactants are low-molecular-weight surface-active compounds of high industrial interest owing to their chemical properties and stability under several environmental conditions. The chemistry a biosurfactant its production cost defined by the selection producer microorganism, type substrate, purification strategy. Recently, have been applied solve or contribute solving some problems, with this being main field application. most referenced studies based on bioremediation contaminated soils recalcitrant pollutants, such as hydrocarbons heavy metals. In case metals, function chelating agents binding capacity. However, mechanism which typically act in an is focused ability reduce surface tension, thus facilitating emulsification solubilization certain pollutants (in-situ biostimulation and/or bioaugmentation). Moreover, despite low toxicity biosurfactants, they can also biocidal at doses, mainly higher concentrations than critical micellar concentration. More recently, using alternative substrates, types organic waste solid-state fermentation, has increased applicability research circular economy context. review, recent publications use applications conventional surfactants summarized analyzed. Novel strategies agricultural presented paper.

Language: Английский

Citations

162
Effects of polycyclic aromatic hydrocarbons on marine and freshwater microalgae – A review DOI Creative Commons

Hiba Ben Othman,

Frances R. Pick,

Asma Sakka Hlaili

et al.

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 441, P. 129869 - 129869

Published: Aug. 29, 2022

Language: Английский

Citations

85
Harmful Algal Blooms in Eutrophic Marine Environments: Causes, Monitoring, and Treatment DOI Open Access

Jiaxin Lan,

Pengfei Liu,

Xi Hu

et al.

Water, Journal Year: 2024, Volume and Issue: 16(17), P. 2525 - 2525

Published: Sept. 5, 2024

Marine eutrophication, primarily driven by nutrient over input from agricultural runoff, wastewater discharge, and atmospheric deposition, leads to harmful algal blooms (HABs) that pose a severe threat marine ecosystems. This review explores the causes, monitoring methods, control strategies for eutrophication in environments. Monitoring techniques include remote sensing, automated situ sensors, modeling, forecasting, metagenomics. Remote sensing provides large-scale temporal spatial data, while sensors offer real-time, high-resolution monitoring. Modeling forecasting use historical data environmental variables predict blooms, metagenomics insights into microbial community dynamics. Control treatments encompass physical, chemical, biological treatments, as well advanced technologies like nanotechnology, electrocoagulation, ultrasonic treatment. Physical such aeration mixing, are effective but costly energy-intensive. Chemical including phosphorus precipitation, quickly reduce levels may have ecological side effects. Biological biomanipulation bioaugmentation, sustainable require careful management of interactions. Advanced innovative solutions with varying costs sustainability profiles. Comparing these methods highlights trade-offs between efficacy, cost, impact, emphasizing need integrated approaches tailored specific conditions. underscores importance combining mitigate adverse effects on

Language: Английский

Citations

23
Anaerobic Microbial Degradation of Polycyclic Aromatic Hydrocarbons: A Comprehensive Review DOI
Kartik Dhar, Suresh R. Subashchandrabose, Kadiyala Venkateswarlu

et al.

Reviews of Environmental Contamination and Toxicology, Journal Year: 2019, Volume and Issue: unknown, P. 25 - 108

Published: Jan. 1, 2019

Language: Английский

Citations

109
Polycyclic Aromatic Hydrocarbon (PAH) Degradation Pathways of the Obligate Marine PAH Degrader Cycloclasticus sp. Strain P1 DOI Open Access
Wanpeng Wang, Lin Wang,

Zongze Shao

et al.

Applied and Environmental Microbiology, Journal Year: 2018, Volume and Issue: 84(21)

Published: Aug. 29, 2018

Bacteria play an important role in the removal of polycyclic aromatic hydrocarbons (PAHs) from polluted environments. In marine environments, Cycloclasticus is one most prevalent PAH-degrading bacterial genera. However, little known regarding degradation mechanisms for multiple PAHs by CycloclasticusCycloclasticus sp. strain P1 was isolated deep-sea sediments and to degrade naphthalene, phenanthrene, pyrene, other hydrocarbons. Here, six ring-hydroxylating dioxygenases (RHDs) were identified complete genome confirmed be involved PAH enzymatic assays. Further, five gene clusters its responsible degradation. Degradation pathways pyrene elucidated based on genomic transcriptomic analysis characterization interconnected metabolic network. The pathway overlaps many steps which validated detection intermediates cultures. This study describes a Cycloclasticus. Moreover, represents integration network that comprises naphthalene pathways. Taken together, these results provide comprehensive investigation metabolism CycloclasticusIMPORTANCE are ubiquitous environment carcinogenic compounds tend accumulate food chains due their low bioavailability poor biodegradability. obligate degrader widespread while remain unclear. this report, revealed, integrated covering constructed overlapping provides streamlined processing ultimately mineralization. Furthermore, additional context prevalence oil-polluted environments pelagic settings. conclusion, analyses useful framework understanding cellular processes ecologically bacterium.

Language: Английский

Citations

99
Bioremediation of intertidal zones polluted by heavy oil spilling using immobilized laccase-bacteria consortium DOI
Xiaoli Dai, Jing Lv,

Guangxu Yan

et al.

Bioresource Technology, Journal Year: 2020, Volume and Issue: 309, P. 123305 - 123305

Published: April 5, 2020

Language: Английский

Citations

75
Metagenomic Insights Into the Mechanisms for Biodegradation of Polycyclic Aromatic Hydrocarbons in the Oil Supply Chain DOI Creative Commons
Kelly Hidalgo, Isabel N. Sierra-García, Bruna Martins Dellagnezze

et al.

Frontiers in Microbiology, Journal Year: 2020, Volume and Issue: 11

Published: Sept. 18, 2020

Petroleum is a very complex and diverse organic mixture. Its composition depends on reservoir location in situ conditions changes once crude oil spilled into the environment, making characteristics associated with every spill unique. Polycyclic aromatic hydrocarbons (PAHs) are common components of constitute group persistent pollutants which easily accumulated soil sediment due to their low solubility high hydrophobicity. The process by sourced made available for use referred as supply chain involves three parts: 1) upstream, 2) midstream 3) downstream activities. As consequence from activities, oils subjected biodeterioration, acidification souring, spills frequently reported affecting not only but also economy human resources. Different bioremediation techniques based microbial metabolism, such bioaugmentation, biostimulation natural attenuation promising approaches minimize environmental impact spills. rate efficiency this depend multiple factors, like pH, oxygen content, temperature, concentration availability contaminants type abundance microorganisms present affected (polluted) area. Emerging approaches, (meta-)taxonomics (meta-)genomics bring new insights molecular mechanisms PAH degradation at both single species community levels reservoirs groundwater/seawater We have scrutinized microbiological aspects biodegradation PAHs naturally occurring upstream activities (exploration production), and/or by-products (transport storage) (refining distribution) This work addresses different stages environments (groundwater, seawater, reservoir) focusing genes pathways well key players involved process. In depth understanding will provide/improve knowledge optimizing monitoring cases minimize/impair avoiding deterioration quality.

Language: Английский

Citations

72