Article
Soil Science
Bing Han, Liu-Ying Mo, Yun-Ting Fang, Hong J. Di, Jun-Tao Wang, Ju-Pei Shen, Li-Mei Zhang
Summary: Denitrification and anammox are the main pathways of nitrogen loss in wet habitats, with denitrification dominating the N-2 production. The community of denitrifiers, driven by nosZ Glade I and II genes, is mainly influenced by salinity and pH, while the anammox bacteria community is mainly affected by salinity.
APPLIED SOIL ECOLOGY
(2021)
Article
Soil Science
Arpita Maheshwari, Christopher M. Jones, Maren Tiemann, Sara Hallin
Summary: Agricultural soils are a major source of N2O, a potent greenhouse gas and ozone-depleting substance. The role of carbon availability in shaping the structure of N2O reducing communities in soil has not been explored. Our study shows that the effect of carbon addition on the abundance and diversity of N2O reducing genes varies with different carbon substrates in contrasting soil types, highlighting the importance of specific carbon substrates in selecting certain lineages of N2O reducers.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Biodiversity Conservation
Jun Shan, Robert A. Sanford, Joanne Chee-Sanford, Sean K. Ooi, Frank E. Loffler, Konstantinos T. Konstantinidis, Wendy H. Yang
Summary: Research has shown that Clade II N2O reducers may play important roles in controlling N2O emissions, with increasing attention in international journals over the years. However, there is confusion surrounding these two distinct groups of N2O reducers due to disciplinary silos and inconsistent nomenclature between Clade I and Clade II.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Environmental Sciences
Abby Schaefer, Jaejin Lee, Michelle L. Soupir, Thomas B. Moorman, Adina Howe
Summary: This study used quantitative PCR and sequencing techniques to analyze microbial communities in woodchip bioreactors. The results showed dynamic microbial communities with persistent taxa between different sampling years and hydraulic retention times. The similarities in functional gene copy numbers suggest that the potential for denitrification is conserved across different microbial communities. The study recommends focusing on woodchip bioreactor microbial community membership in future research.
JOURNAL OF ENVIRONMENTAL QUALITY
(2022)
Article
Environmental Sciences
Sanni L. Aalto, Suvi Suurnakki, Mathis von Ahnen, Marja Tiirola, Per Bovbjerg Pedersen
Summary: Woodchip bioreactors are effective in removing nitrate from aquaculture effluents, with microbial communities including sulfate reducing bacteria (SRB) and sulfate oxidizing bacteria (SOB) playing crucial roles. The conditions within the bioreactors shape the microbial communities, with similar design and operational settings leading to similar functions. Autotrophic denitrifiers can significantly contribute to H2S consumption and nitrate removal in woodchip bioreactors, improving their overall environmental benefit.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Wei Wei, Kazuo Isobe, Yutaka Shiratori, Midori Yano, Sakae Toyoda, Keisuke Koba, Naohiro Yoshida, Haoyang Shen, Keishi Senoo
Summary: After studying with multiple methods, it was found that the overlooked denitrifying bacteria and fungi were more involved in N2O production than previously thought, and their activities varied under different fertilization practices and types. Proposed a conceptual scheme of N flow based on distinct physiological constraints among diverse NH3 oxidizers and denitrifiers to understand the environmental context-dependent N2O emission processes.
ENVIRONMENTAL POLLUTION
(2021)
Article
Biochemistry & Molecular Biology
Karna Gowda, Derek Ping, Madhav Mani, Seppe Kuehn
Summary: The metabolic activities of microbial communities are crucial for the evolution and persistence of life on Earth. This study shows that the dynamics of metabolites in a community can be predicted based on the genes possessed by each member of the community, providing insights into how genome evolution impacts metabolism.
Article
Multidisciplinary Sciences
Rachel L. Rubin, Kate A. Ballantine, Arden Hegberg, Jason P. Andras
Summary: Microbial communities play a crucial role in wetland degradation and restoration processes. Flooded and restored sites showed the highest similarity to natural wetlands in terms of microbial community structure, while young and old retired sites had similar communities to farms. Specific soil variables like potassium base saturation, sodium, and denitrification potential were found to significantly influence the variation in microbial communities. Flooded sites exhibited the strongest evidence of wetland development, accumulating higher soil organic matter and exhibiting greater denitrification potential, suggesting potential use of flooding to stimulate beneficial microbial communities during restoration.
Article
Environmental Sciences
Jofre Herrero, Diana Puigserver, Ivonne Nijenhuis, Kevin Kuntze, Jose M. Carmona
Summary: This study investigated the distribution of microbial communities in two boreholes in the source area of perchloroethene through T-RFLP and clone library analysis. The most abundant phylums found in the sediment were Proteobacteria, Actinobacteria, and Firmicutes. The study demonstrated that environmental factors like fine granulometry, oxygen tolerance, terminal electron-acceptor processes, and toxicity controlled the microbial structure in response to chlorinated solvent contamination.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
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
Chemistry, Multidisciplinary
Ying Liu, Yizhi Sheng
Summary: Iron plays a vital role in the assembly process of heterotrophic denitrifying microbial communities. Results reveal that higher Fe concentration induces more clustered microbial interactions. The balance between deterministic and stochastic processes of these communities is controlled by iron.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Microbiology
Jian-Qing Qi, Hai-Yan Yuan, Qi-Lu Zhuang, Eric-Fru Zama, Xiao-Fei Tian, Bao-Xian Tao, Bao-Hua Zhang
Summary: This study investigates the relationship between different types of biochar, bulk soil, and rhizosphere microbial communities in relation to methane and nitrous oxide emissions. The results show that biochar at 300 degrees C and 10% incorporation significantly increased methane emissions, and the ratio of mcrA/pmoA and the abundance of AOA in bulk soil were the main factors influencing methane emissions. Moreover, the abundance of AOB in bulk soil was found to be the most important predictor influencing nitrous oxide emissions.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Environmental Sciences
Na Zhang, Yi-Lu Sun, Bao-Min Yao, Bo Zhang, Hao-Yi Cheng
Summary: Nitrate pollution is a major cause of eutrophication and ecological disruption. The element sulfur-based denitrification (ESDeN) has gained attention due to its non-carbon source dependence, low sludge yield, and cost-effectiveness. This study comprehensively investigated the shaping of ESDeN microbial communities under different temperature conditions and found that dissolved oxygen and temperature were important factors in shaping the microbial community structure.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Jiaqi Zhao, Lingzhan Miao, Yu Yao, Tanveer M. Adyel, Haomiao Cheng, Songqi Liu, Yang Liu, Jun Hou
Summary: Nanoplastics, particularly surface-modified forms, can significantly impact microbial communities and functions in aquatic systems. This study found that amino modified nanoplastics inhibited fungal communities, while bacterial community diversity remained stable in all nanoplastics treatments. Additionally, nanoplastics enhanced denitrification and the activity of key denitrification enzymes, resulting in increased nitrogen and nitrous oxide gas production and decreased nitrate concentrations in the water column.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Microbiology
Nakian Kim, Chance W. Riggins, Maria C. Zabaloy, Sandra L. Rodriguez-Zas, Maria B. Villamil
Summary: Cover cropping is a promising practice to improve soil health and reduce nitrogen losses from excessive fertilization. However, little is known about how soil N-cycling microbial communities respond to cover cropping in typical agricultural systems. This study investigated the relationship between soil N-cycling communities and cover cropping in long-term corn monoculture.
FRONTIERS IN MICROBIOLOGY
(2022)
Review
Environmental Sciences
Attila Csaba Kondor, Anna Viktoria Vancsik, Laszlo Bauer, Lili Szabo, Zoltan Szalai, Gergely Jakab, Gabor Maasz, Marta Pedrosa, Maria Jose Sampaio, Ana Rita Lado Ribeiro
Summary: This review provides a critical overview of research on the removal efficiency of priority substances and compounds of emerging concern through bank filtration, discussing influencing factors and future challenges. The findings show that the efficiency of bank filtration is influenced by multiple factors and varies for different substances.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Xinyan Wang, Shuai Zhang, Huihui Yan, Zhao Ma, Yunshan Zhang, Haining Luo, Xueli Yang
Summary: This study investigated the association between ambient PM2.5, O3 pollution, and ovarian reserve in reproductive-aged Chinese women. The results showed that increased exposure to PM2.5 and O3 was associated with decreased AMH levels, indicating reduced ovarian reserve. Notably, the effects of O3 exposure on ovarian reserve were different from those of PM2.5 exposure.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Tingting Ma, Yanjuan Ding, Fengjiao Xu, Chen Zhang, Min Zhou, Ya Tang, Yanrong Chen, Yating Wen, Rufei Chen, Bin Tang, Shigui Wang
Summary: The dragonfly species Orthetrum albistylum can accumulate heavy metals, and its heat shock protein genes have the potential to serve as biomarkers for monitoring environmental pollutants.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Naoto Ishiwaka, Koya Hashimoto, Masayoshi K. Hiraiwa, Francisco Sanchez-Bayo, Taku Kadoya, Daisuke Hayasaka
Summary: Systemic insecticides and rising temperatures have combined effects on the abundance of Odonata nymphs in paddy fields. The standalone effect of insecticide exposure decreased the Odonata community, while nymphs decreased synergistically with temperature rise in paddy water. However, the impacts of each stressor alone varied among species.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Marco Vecchiato, Carlo Barbante, Elena Barbaro, Francois Burgay, Warren R. L. Cairns, Alice Callegaro, David Cappelletti, Federico Dallo, Marianna D'Amico, Matteo Feltracco, Jean-Charles Gallet, Andrea Gambaro, Catherine Larose, Niccolo Maffezzoli, Mauro Mazzola, Ivan Sartorato, Federico Scoto, Clara Turetta, Massimiliano Varde, Zhiyong Xie, Andrea Spolaor
Summary: The Arctic region is facing contamination from long-range pollution and local human activities. Polycyclic Aromatic Hydrocarbons (PAHs) are used as environmental indicators for emission, transport, and deposition processes. Research conducted in the Arctic surface snow in Ny-Ålesund, Svalbard from October 2018 to May 2019 shows that long-range inputs of PAHs mainly occur in winter, while the most abundant analyte retene exhibits opposite seasonal trends.
ENVIRONMENTAL POLLUTION
(2024)
Review
Environmental Sciences
Maoshui Zhuo, Zhijie Chen, Xiaoqing Liu, Wei Wei, Yansong Shen, Bing-Jie Ni
Summary: This paper discusses the application of three catalytic processes (photocatalysis, electrocatalysis, and biocatalysis) in the management of microplastic pollution, and introduces the efficiency and catalytic mechanisms of different catalysts. It also proposes the development prospects for sustainable management of microplastic pollution.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Shiyu Chen, Zhenzhen Shi, Qiang Zhang
Summary: In this study, a human physiologically based pharmacokinetic (PBPK) model of diethyl phthalate (DEP) was developed to assess its toxicity. The model considers the distribution and metabolism of DEP and its active metabolite monoethyl phthalate (MEP) in different tissue compartments. Sensitivity analysis and Bayesian Markov chain Monte Carlo (MCMC) simulations were performed to evaluate the uncertainty and variability of the model parameters. The results suggest that dermal absorption is an important route of exposure to DEP in the environment.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Bangguo Wang, Lijing Wang, Wenxi Cen, Tao Lyu, Peter Jarvis, Yang Zhang, Yuanxun Zhang, Yinghui Han, Lei Wang, Gang Pan, Kaili Zhang, Wei Fan
Summary: This study investigates the feasibility and mechanisms of a chemical-free nanobubble-based AOP for treating organic micropollutants in water. The results show that the oxygen nanobubble AOP has a significantly higher removal efficiency compared to air and nitrogen nanobubbles. The treatment performance is not affected by pH and the presence of ions. Higher initial concentrations of the micropollutant lead to slower treatment processes, but similar removal performance is achieved in the end. The presence of organic matter reduces the removal rate of the micropollutant. The results have practical feasibility for water and wastewater treatment.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Yingmei Huang, Jicai Yi, Yao Huang, Songxiong Zhong, Bin Zhao, Jing Zhou, Yuxuan Wang, Yiwen Zhu, Yanhong Du, Fangbai Li
Summary: This study investigates the impact of biochar on methylmercury (MeHg) accumulation in rice. The results show that biochar reduces MeHg levels in paddy soils by decreasing bioavailable Hg and microbial Hg methylation. Additionally, biochar decreases the uptake and translocation of MeHg in rice plants, resulting in a reduction of MeHg accumulation in rice grains.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Nengde Zeng, Fei Huang, Jiani Du, Chenghao Huang, Qian Yang, Xinhua Zhan, Baoshan Xing
Summary: This study investigates the protein targets and protein-ligand interactions related to PAH contamination in crop xylem sap using computational tools. The results show that phenanthrene has a more pronounced effect on the xylem sap proteins of maize and wheat, with maize DEPs associated with lipid biosynthesis and wheat DEPs exhibiting an increase in ABC transporters. This study provides insights into the regulation and movement of PAHs within plant xylem.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Xinwei Chen, Hao Ma, Run Wang, Man Wang, Binbin Zhu, Yanqing Cong, Xiayue Zhu, Guoqin Wang, Yi Zhang
Summary: Co3O4/TiO2-NRs electrodes with excellent photoresponse were prepared via plasma-assisted modification of Co3O4 on TiO2. The combination of Co3O4 and TiO2 improved the light utilization efficiency and showed potential for degradation of pollutants.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Wenjing Ji, Liying Song, Jing Wang, Hongqing Song
Summary: This study conducted a life-cycle assessment to examine the correlation between natural gas consumption and carbon emissions in different end uses in China. The results showed that both natural gas consumption and life-cycle carbon emissions have been increasing since 2017. Significant variations in NG life-cycle carbon emissions were found across different provinces and sectors, highlighting the need for targeted efforts to reduce carbon emissions.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Youyi Chen, Boxuan Zhang, Pojun Zhang, Guogui Shi, Hao Liang, Wu Cai, Jingyu Gao, Sumin Zhuang, Kaiyin Luo, Jiaqi Zhu, Chaoxiang Chen, Kunyu Ma, Jinrong Chen, Chun Hu, Xueci Xing
Summary: The synergistic effects of trace sulfadiazine and cast-iron corrosion scales on the formation of disinfection by-products in drinking water distribution systems were investigated. The presence of magnetite resulted in increased concentrations of DBPs due to the higher microbial activity and enhanced microbial extracellular electron transport pathway. The study highlights the importance of considering trace antibiotics pollution and corrosion scales in water sources for DBP control.
ENVIRONMENTAL POLLUTION
(2024)
Review
Environmental Sciences
Bishwa Raj Pokharel, Vijay Sheri, Manoj Kumar, Zhiyong Zhang, Baohong Zhang
Summary: This review summarizes the interactions, uptake, and transport of aluminum nanoparticles (Al-NPs) in plants, highlighting their negative effects on plant growth and development, as well as their potential to alter plant defense systems and gene expression.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Yonglu Wang, Fengsong Zhang, Xiaoyong Liao, Xiao Yang, Guixiang Zhang, Liyun Zhang, Chaojun Wei, Pengge Shi, Jiongxin Wen, Xiaorong Ju, Can Xu, Yang Liu, Ying Lan
Summary: This study aims to explore the effects of thiencarbazone-methyl center dot isoxaflutole on soil microflora and the potential mitigation mechanisms to bacterial communities. It was found that increasing the application of thiencarbazone-methyl center dot isoxaflutole resulted in increased stress on soil bacterial community structure and diversity. Increasing soil pH was recognized as a key factor in improving the diversity and structure of soil microflora. Supplemental use of nitrapyrin or modified attapulgite can increase soil pH and improve bacterial diversity.
ENVIRONMENTAL POLLUTION
(2024)