Article
Environmental Sciences
Kai-Hung Lo, Che-Wei Lu, Chih-Ching Chien, Yi-Tern Sheu, Wei-Han Lin, Ssu-Ching Chen, Chih-Ming Kao
Summary: This study evaluated the effectiveness of an immobilized Clostridium butyricum (ICB) column scheme in cleaning up chlorinated-ethene polluted groundwater containing cis-1,2-dichloroethene (cis-DCE). The results showed that the introduction of ICB and SPRS significantly reduced the concentration of cis-DCE and enhanced the dechlorination process. Furthermore, the introduction of ICB and SPRS had a significant impact on the microbial communities.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Construction & Building Technology
Ruiqing Chen, Angus Shiue, Junjie Liu, Yuan Zhi, Dingchao Zhang, Fiona Xia, Graham Leggett
Summary: Both on-site collection and off-site analysis methods were used to study airborne molecular contaminants (AMCs) in a semiconductor wafer cleanroom. The removal efficiency of chemical filters in the cleanroom was found to be approximately 50%, below the standard requirement. The presence of BTEX and other pollutants was also detected, with BTEX accounting for 77% of the total.
BUILDING AND ENVIRONMENT
(2022)
Article
Fisheries
Wolf-Christian Lewin, Marc Simon Weltersbach, Kevin Haase, Carsten Riepe, Christian Skov, Casper Gundelund, Harry Strehlow
Summary: Recreational fishing data, collected through on-site and off-site surveys, show indications of avidity and recall bias which may influence catch and release estimates. Catch rates and release rates vary significantly between different fishing platforms, with on-site and diary anglers showing similar rates. Complementary on-site surveys should be included in recreational fishing monitoring approaches to control for biases, and future surveys should incorporate variables capturing angler behavior heterogeneity.
ICES JOURNAL OF MARINE SCIENCE
(2021)
Article
Chemistry, Applied
Xuejiao Liu, Bin Fu, Jierong Chen, Zhenyu Sun, Dongdong Zheng, Zhonghua Li, Bing Gu, Ying Zhang, Haojie Lu
Summary: Liver disease is a major cause of global mortality, and identifying biomarkers for diagnosing its progression is crucial for improving outcomes. Targeted mass spectrometry is a powerful tool for verifying biomarker candidates and clinical applications, particularly for glycoproteins translation. However, the limitation of analyzing only one sample per run has become apparent. In this study, a high-throughput intact N-glycopeptides quantification strategy was developed, allowing the validation of 20 samples per run with an average analysis time of 3 minutes per sample. The strategy was applied in a cohort of 461 serum samples and identified a panel of 10 IgG N-glycopeptides that have strong clinical utility in evaluating the severity of liver disease.
CARBOHYDRATE POLYMERS
(2024)
Article
Environmental Sciences
N. Karunakara, Renita Shiny D'Souza, S. Rashmi Nayak, S. Bharath, K. Arya Krishnan, B. N. Dileep, P. M. Ravi
Summary: This study is the first detailed research on 14C activity in the environment surrounding a nuclear facility in India. It analyzed samples from off-site locations of the PHWR nuclear power plant at Kaiga and established a comprehensive database of results. The study confirmed that the impact of the plant's operation on the environment beyond 5 km is minimal.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Farnaz Bahavarnia, Hossein Navay Baghban, Morteza Eskandani, Mohammad Hasanzadeh
Summary: In this study, different types of silver nanoparticles were synthesized and used for the chemosensing of MDA. The research found that this method could be used to monitor various diseases, which is of great significance for on-site semi-analytical recognition of harmful substances or illegal drugs.
Article
Geosciences, Multidisciplinary
Eve-Agnes Fiorentino, Sheldon Warden, Maksim Bano, Pascal Sailhac, Thomas Perrier
Summary: Remediation of polluted sites requires accurate delineation of contamination sources, with traditional methods and geophysical techniques offering different advantages. Combining these methods at different stages can improve the efficiency of remediation processes.
Article
Biotechnology & Applied Microbiology
Alexandra Meziti, Luis M. Rodriguez-R, Janet K. Hatt, Angela Pena-Gonzalez, Karen Levy, Konstantinos T. Konstantinidis
Summary: Recovery of metagenome-assembled genomes (MAGs) from metagenomic data is common in microbial studies, but the quality of MAGs may be worse than estimated. Strategies to recognize and improve MAGs are crucial for accurate downstream analyses.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Microbiology
A. Meziti, E. Nikouli, J. K. Hatt, K. T. Konstantinidis, K. A. Kormas
Summary: The study showed that functions of microbial communities in a moderately hot terrestrial spring remain stable even over the long term, presumably driving the corresponding stability in community structure.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Ecology
Tomeu Viver, Roth E. Conrad, Luis H. Orellana, Mercedes Urdiain, Jose E. Gonzalez-Pastor, Janet K. Hatt, Rudolf Amann, Josefa Anton, Konstantinos T. Konstantinidis, Ramon Rossello-Mora
Summary: Microbial communities in hypersaline brines of solar salterns show high resistance and resilience to environmental changes, with salinity being a major factor influencing community structure. Even after rapid osmotic shocks caused by significant changes in salinity, the communities are able to recover. Different ecotypes within the dominant archaeal population coexist with distinct preferences for salt concentrations, and the osmotic shock leads to temporary increases in taxonomic and functional diversity.
Article
Public, Environmental & Occupational Health
Maria J. Soto-Giron, Angela Pena-Gonzalez, Janet K. Hatt, Lorena Montero, Maritza Paez, Estefania Ortega, Shanon Smith, William Cevallos, Gabriel Trueba, Konstantinos T. Konstantinidis, Karen Levy
Summary: Significant differences were found in the gut microbiome between urban and rural populations, especially during episodes of acute diarrheal disease. The rural population's microbiome may be more resilient to such infections.
AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
(2021)
Article
Biotechnology & Applied Microbiology
Smruthi Karthikeyan, Luis H. Orellana, Eric R. Johnston, Janet K. Hatt, Frank E. Loffler, Hector L. Ayala-Del-Rio, Grizelle Gonzalez, Konstantinos T. Konstantinidis
Summary: This study revealed the differences in microbial community composition and functions between tropical rainforests and temperate regions, with higher abundances of N2O and nitrogen fixation-related genes in tropical soils. Additionally, the lack of stratification with depth in tropical rainforest soils and the influence of geographic location on community composition differences were highlighted. The findings advance our understanding of the spatial diversity and metabolic capabilities of tropical rainforest soil communities, providing valuable insights for future ecological studies in these critical ecosystems.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Microbiology
Gyuhyon Cha, Kelley A. Meinhardt, Luis H. Orellana, Janet K. Hatt, Manmeet W. Pannu, David A. Stahl, Konstantinos T. Konstantinidis
Summary: This study analyzed the functional changes in soil microbial communities under different agricultural practices (unfertilized switchgrass, fertilized switchgrass, and switchgrass intercropped with alfalfa). The results showed that while intercropping and fertilization did not lead to major shifts in microbial community taxonomic and functional composition, there were significant changes in certain microbial populations, particularly those involved in nitrogen preservation.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Ecology
Patrick Heritier-Robbins, Smruthi Karthikeyan, Janet K. Hatt, Minjae Kim, Markus Huettel, Joel E. Kostka, Konstantinos T. Konstantinidis, Luis M. Rodriguez-R
Summary: The study tested the specialization-disturbance hypothesis on beach sands disturbed by DWH crude oil in laboratory conditions, finding that functional diversity significantly increased while taxonomic diversity significantly declined over a two-month period, supporting the hypothesis that specialist taxa decrease following disturbances.
Article
Ecology
Roth E. Conrad, Tomeu Viver, Juan F. Gago, Janet K. Hatt, Stephanus N. Venter, Ramon Rossello-Mora, Konstantinos T. Konstantinidis
Summary: Metagenomic surveys have shown that Salinibacter ruber population maintains immense intrapopulation gene diversity with an open pangenome, similar in size to randomly sampled Escherichia coli genomes. While most accessory genes became abundant under changing salinity conditions, the ecological advantage was not strong enough to eliminate diversity within the population.
Article
Biotechnology & Applied Microbiology
Lizbeth Davila-Santiago, Natasha DeLeon-Rodriguez, Katia LaSanta-Pagan, Janet K. Hatt, Zohre Kurt, Arturo Massol-Deya, Konstantinos T. Konstantinidis
Summary: The Anones Lagoon in Puerto Rico underwent extensive bombing by the US Navy, but after almost 10 years without bombing activities, microbial communities in the lagoon showed significant changes, including increased diversity and decreased abundance of genes related to explosives and heavy metals. Additionally, five genomes associated with contaminant biodegradation were recovered from the sediment samples.
SYSTEMATIC AND APPLIED MICROBIOLOGY
(2022)
Article
Engineering, Environmental
Blake G. Lindner, Brittany Suttner, Kevin J. Zhu, Roth E. Conrad, Luis M. Rodriguez-R, Janet K. Hatt, Joe Brown, Konstantinos T. Konstantinidis
Summary: Little is known about the genomic diversity of microbial communities associated with raw municipal wastewater. This study used influent from three wastewater treatment plants in Atlanta to examine the impacts of sewage contamination on laboratory freshwater mesocosms. It identified specific microbial populations in sewage and proposed a bioinformatic approach to identify and apportion contamination signal from multiple probable sources using shotgun metagenomic data.
Article
Environmental Sciences
Smruthi Karthikeyan, Janet K. Hatt, Minjae Kim, Jim C. Spain, Markus Huettel, Joel E. Kostka, Konstantinos T. Konstantinidis
Summary: Alkanes are commonly found in marine ecosystems, originating from natural oil seeps, human inputs, and biogenic production by cyanobacteria. A novel AlkB clade was discovered in the Gulf of Mexico, significantly increased in crude-oil impacted ecosystems, contrasting with traditional AlkB clades associated with cyanobacterial alkane biotransformation.
ENVIRONMENTAL MICROBIOLOGY REPORTS
(2021)
Article
Environmental Sciences
Minjae Kim, Yvonne Kienast, Janet K. Hatt, Amy E. Kirby, Konstantinos T. Konstantinidis
Summary: Urban floodwater poses significant risks to public and environmental health due to the presence of microbial pathogens and overflow of wastewater treatment systems. A study found that floodwater after periods of drought had a 2.5-fold higher abundance of antibiotic resistance genes and virulence factors compared to floodwater after regular rain events. This study also identified previously undescribed species that become mobilized after flooding events, increasing the public health risk.
ENVIRONMENTAL MICROBIOLOGY REPORTS
(2022)
Article
Microbiology
Brittany Suttner, Minjae Kim, Eric R. Johnston, Luis H. Orellana, Carlos A. Ruiz-Perez, Luis M. Rodriguez-R, Janet K. Hatt, Joe Brown, Jorge W. Santo Domingo, Konstantinos T. Konstantinidis
Summary: Recent studies have questioned the use of enterococci as a fecal indicator bacterial group due to the existence of naturalized populations of Enterococcus faecalis in the extraenteric environment. Results showed similar decay rates between enteric and environmental isolates, but enteric isolates exhibited a spike in rRNA:rDNA ratios during mesocosm incubations. Despite evidence for habitat adaptation in E. faecalis, it may not be substantial or consistent enough for integration in water quality monitoring.
MICROBIOLOGY SPECTRUM
(2021)
Article
Engineering, Environmental
Osmar Menezes, Kumru Kocaman, Stanley Wong, Erika E. Rios-Valenciana, Eliot J. Baker, Janet K. Hatt, Jianshu Zhao, Camila L. Madeira, Mark J. Krzmarzick, Jim C. Spain, Reyes Sierra-Alvarez, Konstantinos T. Konstantinidis, Jim A. Field
Summary: Insensitive munitions compounds (IMCs) are new nitroaromatic contaminants that can be transformed and remediated through microbial respiration in combination with quinone respiration. The process can function even at very low concentrations of quinone.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Correction
Microbiology
Tomeu Viver, Luis H. Orellana, Janet K. Hatt, Mercedes Urdiain, Sara Diaz, Michael Richter, Josefa Anton, Massimo Avian, Rudolf Amann, Konstantinos T. Konstantinidis, Ramon Rossello-Mora
ENVIRONMENTAL MICROBIOLOGY
(2022)
