Article
Microbiology
Ossi Tonteri, Anna Reunamo, Aura Nousiainen, Laura Koskinen, Jari Nuutinen, Jaak Truu, Kirsten S. Jorgensen
Summary: This study investigates the effectiveness of dispersant use in the Baltic Sea, focusing on oil degradation rates and bacterial community structures. Results show that coastal seawater from the Gulf of Bothnia and Gulf of Finland have the highest oil degradation gene abundances and removal rates, while seawater from the Norwegian Sea have the lowest. Dispersant usage has apparent effects on bacterial communities, but its impact on biodegradation rate remains unclear due to uncertainties in chemical analysis and oil concentration variations.
Article
Microbiology
Susan E. Cobanli, Gary Wohlgeschaffen, Camilla Ryther, Jessica MacDonald, Alison Gladwell, Taylor Watts, Charles W. Greer, Miria Elias, Jessica Wasserscheid, Brian Robinson, Thomas L. King, Alice C. Ortmann
Summary: Surface spills of diluted bitumen can cause shifts in microbial community structure, with differences depending on the season. Oil spills have devastating impacts on coastal ecosystems, and concerns have been raised about the impact of diluted bitumen on such ecosystems. The type of diluent and the season can affect the concentrations of hydrocarbons entering the water column from a surface spill. Microbial response to the spill is influenced by diluent type and season, with hydrocarbon-degrading bacteria becoming more abundant.
FEMS MICROBIOLOGY ECOLOGY
(2022)
Article
Environmental Sciences
Yumiao Zhou, Ying Wang, Likun Yang, Qiang Kong, Huanxin Zhang
Summary: Petroleum hydrocarbons are significant new persistent organic pollutants for marine oil spill risk areas. Oil trading ports have become major bearers of the risk of offshore oil pollution. However, studies on the molecular mechanisms of microbial degradation of petroleum pollutants by natural seawater are limited. In this study, an in situ microcosm study was conducted, revealing differences in metabolic pathways and gene abundances of total petroleum hydrocarbons (TPH) under different conditions. The degradation of TPH was shown to be 88% after 3 weeks of treatment. Various bacterial genera, such as Cycloclasticus, Marivita, and Sulfitobacter, were identified as positive responders to TPH. The use of dispersants with oil enhanced the degradation of TPH, with certain bacterial species from the Proteobacteria phylum playing key roles. Additionally, the study found that the biodegradability of aromatic compounds and polycyclic aromatic hydrocarbons was enhanced after the oil spill, while the photosynthesis-related mechanism was inhibited. The dispersant treatment stimulated microbial degradation of TPH and promoted the succession of microbial communities. The study provides insights into the metabolic pathways and functional genes for oil degradation by marine microorganisms, which will contribute to the improvement of bioremediation applications and practices.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Huiping Liu, Xinhong Wang, Yang Ou, Lei Cheng, Xia Hou, Liming Yan, Liping Tian
Summary: Twelve biofilter simulation devices were designed to investigate the efficiency and mechanism of removing acetochlor under low-temperature conditions. Different substrates were compared for their effect on acetochlor removal, and it was found that biochar treatment had the shortest onset time while gravel treatment had the longest onset of action. The analysis of microbial communities and degradation pathways revealed key microorganisms and environmental factors affecting acetochlor degradation in the biofilter.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Yimeng Zhang, Xiaofan Zhai, Fang Guan, Xucheng Dong, Jiawen Sun, Ruiyong Zhang, Jizhou Duan, Binbin Zhang, Baorong Hou
Summary: Petroleum spills in seawater can lead to accelerated steel corrosion, mainly through microbiologically influenced corrosion (MIC). Crude oil promotes the growth of marine oil-degrading bacteria, such as Alcanivorax and Marinobacter, in both seawater and steel rust. This study suggests that microbial sulfide is not the main cause of steel corrosion in early petroleum-polluted seawater, and specialized oil-degrading bacteria play significant roles in this process.
NPJ MATERIALS DEGRADATION
(2022)
Article
Engineering, Environmental
Emilio D'Ugo, Lucia Bertuccini, Francesca Spadaro, Roberto Giuseppetti, Francesca Iosi, Fabio Santavenere, Fausto Giuliani, Massimo Gricia, Andrea Rodomonte, Nicola Lovecchio, Arghya Mukherjee, Paola Bucci, Milena Bruno, Emilia Stellacci, Antonietta Bernardo, Fabio Magurano
Summary: The microbial biofilm formed at the oil-water interface is capable of electron transfer along the water column, spontaneously creating a liquid microbial fuel cell that can adapt to oil spills and potentially indicating evolutionary connections.
Article
Environmental Sciences
Synnove Lofthus, Ingrid Bakke, Charles W. Greer, Odd Gunnar Brakstad
Summary: Studies have shown that oil frozen in sea ice experiences negligible biodegradation before melting, but oil-degrading bacteria surviving in the ice may contribute to biodegradation when the ice melts.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Lijuan Feng, Zeliang Zhang, Guangfeng Yang, GuiYang Wu, Qiao Yang, Qingguo Chen
Summary: In this study, the dynamics of microbial community and nitrogen cycle in sediment of a coastal eutrophic lake were investigated. The results showed that the increase in water salinity was positively correlated with bacterial diversity and nitrogen cycle-related bacteria activities in surface water. However, eukaryotic diversity in surface water was not influenced by salinity. In sediment, bacterial and eukaryotic diversity were higher than in water, with dominant phyla being Proteobacteria and Chloroflexi for bacteria, and Bacillariophyta, Arthropoda, and Chlorophyta for eukaryotes. Higher salinity caused by seawater intrusion enhanced denitrification, DNRA, and ammonification, while decreasing nitrogen fixation and assimilatory nitrogen reduction. The changes in dominant genes of narG, nirS, nrfA, ureC, nifA, and nirB were mainly attributed to changes in Proteobacteria and Chloroflexi.
ENVIRONMENTAL RESEARCH
(2023)
Article
Microbiology
Shun Yao, Tianzhi Jin, Lu Zhang, Yong Zhang, Rui Chen, Qian Wang, Mingjie Lv, Chuxiao Hu, Ting Ma, Wenjie Xia
Summary: This study explores the strategy of selective stimulation of indigenous functional microbes in petroleum reservoirs through the injection of an exogenous heterocycle-degrading strain of Pseudomonas. The results demonstrate that this microbial modulation approach can lead to in situ nitrogen/sulfur element release and electron acceptor generation, which improve the structure and function of the microbiome and enhance heavy oil recovery.
Article
Microbiology
Ashraf Al-Ashhab, Amer Sweity, Luna Al-Hadidi, Moshe Herzberg, Zeev Ronen
Summary: This study investigates the biodegradability of three commercial antiscalants used in seawater desalination and their effects on microbial diversity. The results show that the polyphosphonate antiscalant is the least biodegradable and has the least impact on bacterial community composition.
Article
Engineering, Environmental
Xing Song, Baiyu Zhang, Yiqi Cao, Bo Liu, Bing Chen
Summary: This study investigated the role of shrimp-waste-based dispersant (SWD) in the biodegradation of dispersed oil. Through metagenomic sequencing and molecular docking analysis, it was found that SWD has enzymatic activities to degrade dispersed oil, and it has low toxicity and high bioactivity. These findings confirm that purified SWD is an effective and sustainable marine oil spill treating agent.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Biotechnology & Applied Microbiology
Martin Vargas-Suarez, Alba Savin-Gamez, Lilianha Dominguez-Malfavon, Ayixon Sanchez-Reyes, Maricarmen Quirasco-Baruch, Herminia Loza-Tavera
Summary: This study explored the impact of microenvironmental conditions on the biodegradative capacity and taxonomic composition of microbial communities in a landfill. Results showed that the composition of microbial communities was influenced by microenvironmental conditions, impacting their ability to degrade polyurethane waste and other xenobiotics. This research provides valuable insights into the potential use of microbial communities for the treatment of PU waste and other pollutants.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Vicente Fernandez, Roman Stocker, Gabriel Juarez
Summary: Immiscible hydrocarbons in the ocean water column occur as droplets of varying diameters. The relationship between droplet size distribution and oil degradation rates by bacteria is unclear. The use of chemical dispersants in oil spill response is based on the assumption that increasing the surface-area-to-volume ratio of droplets will enhance biodegradation rates, but this argument doesn't hold in most natural marine environments. A mechanistic encounter-consumption model predicts the characteristic time for oil degradation by marine bacteria, taking into account the initial oil concentration, droplet size distribution, and the abundance of oil-degrading bacteria. The model shows that reducing droplet size below an optimum can increase the persistence of oil droplets in the environment.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Lucelia Cabral, Patricia Giovanella, Elisa Pais Pellizzer, Elias Hideo Teramoto, Chang Hung Kiang, Lara Duraes Sette
Summary: In recent decades, hydrocarbon concentrations in soil and water have increased due to accidents or operations involving crude oil and petroleum input into the environment. Bioremediation has emerged as an effective environmental recovery approach, utilizing hydrocarbon compounds as growth substrates for microorganisms, contributing to the stabilization of impacted areas.
Article
Environmental Sciences
Yumiao Zhou, Qiang Kong, Xinyu Zhao, Zhihao Lin, Huanxin Zhang
Summary: In this study, we investigated the response of indigenous microbial community in Jiaozhou Bay to crude oil and dispersant treatment. The results showed that dispersant treatment was more advantageous for certain microbial species and had stronger effects on the structure and degradation functions of the microbial community compared to crude oil.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Jian Wang, Kathia Sandoval, Yan Ding, Donald Stoeckel, Angela Minard-Smith, Gary Andersen, Eric A. Dubinsky, Ronald Atlas, Piero Gardinali
SCIENCE OF THE TOTAL ENVIRONMENT
(2016)
Article
Biotechnology & Applied Microbiology
Ingemar Naerdal, Roman Netzer, Marta Irla, Anne Krog, Tonje Marita Bjerkan Heggeset, Volker F. Wendisch, Trygve Brautaset
JOURNAL OF BIOTECHNOLOGY
(2017)
Article
Biotechnology & Applied Microbiology
Synnove Lofthus, Roman Netzer, Anna S. Lewin, Tonje M. B. Heggeset, Tone Haugen, Odd Gunnar Brakstad
Article
Environmental Sciences
Odd G. Brakstad, Umer Farooq, Deni Ribicic, Roman Netzer
Article
Environmental Sciences
Deni Ribicic, Roman Netzer, Anika Winkler, Odd Gunnar Brakstad
MARINE POLLUTION BULLETIN
(2018)
Article
Environmental Sciences
Odd G. Brakstad, Deni Ribicic, Anika Winkler, Roman Netzer
MARINE POLLUTION BULLETIN
(2018)
Article
Environmental Sciences
Deni Ribicic, Roman Netzer, Terry C. Hazen, Stephen M. Techtmann, Finn Drablos, Odd Gunnar Brakstad
MARINE POLLUTION BULLETIN
(2018)
Article
Microbiology
Deni Ribicic, Kelly Marie McFarlin, Roman Netzer, Odd Gunnar Brakstad, Anika Winkler, Mimmi Throne-Holst, Trond Rovik Storseth
Article
Marine & Freshwater Biology
Deni Ribicic, Roman Netzer, Anika Winkler, Odd Gunnar Brakstad
JOURNAL OF SEA RESEARCH
(2018)
Article
Environmental Sciences
Roman Netzer, Ingrid A. Henry, Deni Ribicic, Daniel Wibberg, Ute Broenner, Odd G. Brakstad
MARINE POLLUTION BULLETIN
(2018)
Article
Biodiversity Conservation
Odd G. Brakstad, Emlyn J. Davies, Deni Ribicic, Anika Winkler, Ute Bronner, Roman Netzer
Review
Food Science & Technology
Gretchen L. Wall, Donna P. Clements, Connie L. Fisk, Donald M. Stoeckel, Kristin L. Woods, Elizabeth A. Bihn
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
(2019)
Article
Environmental Sciences
Ingrid A. Henry, Roman Netzer, Emlyn J. Davies, Odd Gunnar Brakstad
MARINE POLLUTION BULLETIN
(2020)
Article
Environmental Sciences
Ingrid A. Henry, Roman Netzer, Emlyn Davies, Odd Gunnar Brakstad
Summary: The formation and fallout of oil-related marine snow are influenced by interactions between dispersed oil, phytoplankton species, mineral particles, and oil concentrations in seawater. Higher oil concentrations are more conducive to the formation of larger aggregates, while even at low concentrations oil droplets can attach to particles and be transported by currents.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Water Resources
Elizabeth A. Bihn, Kurt J. Mangione, Bill Lyons, Annette L. Wszelaki, John J. Churey, Don M. Stoeckel, Randy W. Worobo
Summary: An irrigation water quality database was developed to assess the microbiological quality of irrigation water in NY and TN, revealing low levels of contamination below EPA standards. While some water quality parameters were weakly correlated with the presence of E. coli, they were not strong enough to serve as a substitute for specific E. coli testing in water.
FRONTIERS IN WATER
(2021)