Article
Microbiology
Wen Tian, Hongmei Wang, Xing Xiang, Prakash C. Loni, Xuan Qiu, Ruicheng Wang, Xianyu Huang, Olli H. Tuovinen
Summary: Water table level plays a critical role in regulating methane emissions through the balance of methanogens and methanotrophs. Previous studies focused on the spatial-temporal variations of peat methane emissions and their relationship with meteorological conditions, while the impact of water table level on methane emissions remained unknown. This study investigated methane functional communities and emissions along a water table gradient in a Sphagnum-dominated peatland, providing insights into the changes in methane-related microbial communities and emissions with water table levels.
MICROBIOLOGY SPECTRUM
(2023)
Article
Biotechnology & Applied Microbiology
Kathryn Wigley, Emmanuel Egbadon, Carlo R. Carere, Louise Weaver, Kim Baronian, Lee Burbery, Pierre Y. Dupont, Sarah J. Bury, Peter A. Gostomski
Summary: This study identified the active micro-organisms involved in aerobic methane oxidation coupled to denitrification (AME-D) using RNA-SIP and high-throughput sequencing techniques. Methanotrophs, methylotrophs, and denitrifiers were found to be actively participating in the AME-D process. It is the first study to utilize RNA-SIP and high-throughput sequencing to determine the active bacteria within an AME-D community.
JOURNAL OF APPLIED MICROBIOLOGY
(2022)
Article
Environmental Sciences
Sarah B. B. Cadieux, Ursel M. E. Schuette, Chris Hemmerich, Sarah Powers, Jeffrey R. R. White
Summary: The study investigated methane cycling in the water column of Arctic lakes and found an unusually efficient methanotrophic community that potentially reduces methane emissions. The isotopic values of methane were highly enriched, and methane concentrations slightly increased at the depth interval with isotope enrichment. The microbial activity within the water column was supported by the increase in temperature and oxidation reduction potential. Understanding the linkages between depth-dependent microbial dynamics and methane biogeochemistry is necessary to assess the sensitivity of the methane cycle to future climate change.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Sciences
Jasir Jawad, Mohd Junaid Khalil, Anoop Kumar Sengar, Syed Javaid Zaidi
Summary: The study evaluated the performance of a biofilter in predicting methane concentration at different heights and times, and developed a model for this purpose. The model was validated with experimental data and showed that the biofilter could achieve a high removal efficiency.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Moon Jung Kim, Hee Young Yun, Kyung-Hoon Shin, Jeong Ha Kim
Summary: Understanding the trophic structure of kelp forests is crucial for their restoration and management. This study investigated the trophic structure and functional recovery of a restored kelp bed in Korea. The results showed that the restored bed reached the biomass and diversity levels of a natural bed within one year. The trophic structure of the restored bed exhibited a transient over-shooting state before moving towards the natural bed in the second year. The removal of sea urchins resulted in increased recruitment of macroalgae and consumer groups, enhancing the diversity and trophic structure of the restored bed.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Ouyuan Jiang, Yong Li, Yue Zheng, Williamson Gustave, Xianjin Tang, Jianming Xu
Summary: This study revealed the effect and mechanism of Cd on CH4 emissions in paddy soils. The results showed that the addition of Cd reduced CH4 emissions and promoted the conversion of CH4 to CO2. The abundance of methanotrophs increased with Cd addition and showed a positive correlation with CH4 emissions. Furthermore, the composition of the microbial community was barely affected by Cd. This study provides a better understanding of the role of rice paddies in global CH4 cycling.
ENVIRONMENTAL RESEARCH
(2023)
Article
Microbiology
Kevin P. Dillon, Valdis Krumins, Aishwarya Deshpande, Lee J. Kerkhof, Gediminas Mainelis, Donna E. Fennell
Summary: The growth and activity of methanotrophic bacteria in the air have been investigated in this study. Results showed that certain conditions can support their growth and synthesis of new DNA in the airborne state. Humidity and low biomass levels were found to be limiting factors for bacterial growth in the air. This study expands our knowledge about the potential activities and functions of bacteria in the atmospheric microbiome.
MICROBIOLOGY SPECTRUM
(2022)
Article
Environmental Sciences
Ting Xie, Xinyu Liu, Yiming Xu, Samuel Bryson, Lu Zhao, Kai Huang, Shiqi Huang, Xiaoming Li, Qi Yang, Huiyu Dong, Mari-Karoliina H. Winkler
Summary: Simultaneous removal of ammonium and nitrate was achieved in a methane-fed moving bed biofilm reactor (MBBR) through the collaboration of methanotrophic microorganisms, denitrifiers, and anaerobic ammonium oxidizing bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Jing Wang, Chen Wang, Yi-Xuan Chu, Guangming Tian, Ruo He
Summary: Landfill cover soil is crucial for controlling methane emission from landfills. This study investigated the effects of dimethyl sulfide (DMS) on methanotrophs in landfill cover soils. The results showed that methanotroph activity was inhibited at higher concentrations of DMS. DMS was primarily oxidized to sulfate in the soil. Methanotrophs belonging to the gamma-Proteobacteria and alpha-Proteobacteria were dominant, with some species showing tolerance to DMS and others being inhibited. Methanotrophs in the soil had the ability to metabolize sulfur compounds, suggesting their potential application for methane and sulfur compound co-removal in engineering.
Review
Environmental Sciences
Qingzhou Zhao, Yanfen Wang, Zhihong Xu, Zhisheng Yu
Summary: Soil serves as a vital biological sink for methane, an important greenhouse gas. Biochar application in soil has raised interest in its impact on methane emissions, particularly in relation to methanotrophs. This review focuses on the effects of biochar on various types of methanotrophs in soil, highlighting the role of biochar in regulating soil methane oxidation through altering soil characteristics and redox reactions.
JOURNAL OF SOILS AND SEDIMENTS
(2021)
Article
Engineering, Environmental
Zhifeng Huang, Abdul Qadeer, Saisai Zheng, Fangfang Ge, Kexin Zhang, Daqiang Yin, Binghui Zheng, Xingru Zhao
Summary: This study investigated the concentrations of PCB congeners, stable isotope levels, and FAs composition in ten freshwater species of Dongtinghu Lake, China. The results showed that the concentrations of certain PCB congeners increased with trophic levels, while PCB 155 concentrations remained consistent across trophic levels. Furthermore, there were positive correlations between FAs and PCBs, indicating that FAs can serve as efficient bioindicators of PCB pollution in aquatic food webs.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Cheng Cheng, Jian Zhang, Qiang He, Haiming Wu, Yi Chen, Huijun Xie, Spyros G. Pavlostathis
Summary: This study found that under anoxic conditions, the consumption of N2O can drive the oxidation of CH4, mainly mediated by methanotrophs in the microbial community. The research reveals the potential mechanisms of N2O-driven CH4 oxidation and highlights the significant role of methanotrophs in carbon and nitrogen cycles.
Article
Environmental Sciences
Jyoti K. Chetri, Krishna R. Reddy, Stefan J. Green
Summary: The study evaluated the impact of biogeochemical cover systems on microbial methane oxidation and community composition through column tests, revealing that activated biochar-amended soils have higher CH4 oxidation rates compared to non-activated biochar-amended soils or control soils. Additionally, the relative abundance of Type II methane oxidation bacteria was higher in activated biochar-amended soils, leading to increased CH4 oxidation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Microbiology
Wen Tian, Hongmei Wang, Xing Xiang, Prakash C. Loni, Xuan Qiu, Ruicheng Wang, Xianyu Huang, Olli H. Tuovinen
Summary: This study provides a comprehensive understanding of the effect of water table level on methane functional groups in peatlands. The results show that water table level significantly shapes methane production and oxidation, and Sphagnum mosses play an important role in reducing methane emissions.
MICROBIOLOGY SPECTRUM
(2023)
Article
Environmental Sciences
Zhixin Ke, Ruofei Li, Danting Chen, Chunyu Zhao, Yehui Tan
Summary: This study investigated the spatial and seasonal distributions of stable carbon and nitrogen isotopes in dominant zooplankton groups in Jiaozhou Bay. The results showed that the distributions of these isotopes were influenced by terrigenous organic matter input and phytoplankton biomass, with variations observed in different seasons. The study also found a correlation between small zooplankton stable isotope values and particulate organic matter. The influence of anthropogenic nutrient input on isotopic baseline and trophic levels of zooplankton groups was discussed.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Agronomy
Andre May, Luciana Fontes Coelho, Alexandre Pedrinho, Bruna Durante Batista, Lucas William Mendes, Rodrigo Mendes, Marcelo Augusto Boechat Morandi, Gabriel Barth, Ronaldo Silva Viana, Elke Simoni Dias Vilela
Summary: In this study, the bacterial community in the shoot and rhizosphere of healthy soybean plants was characterized. The effects of these communities on seedling development were assessed by transplanting them to seeds. The results showed that the diversity of the bacterial consortium from the rhizosphere was higher than that from the shoot. However, the application of bacterial consortium in seedlings had no influence on diversity. The seedlings inoculated with the bacterial consortium showed an enrichment of plant growth-promoting groups and increased abundance of functions related to plant protection and nutrition.
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2023)
Article
Ecology
Josieli Lima da Silva, Lucas William Mendes, Sandra Mara Barbosa Rocha, Jadson Emanuel Lopes Antunes, Louise Melo de Souza Oliveira, Vania Maria Maciel Melo, Francisca Andrea Silva Oliveira, Arthur Prudencio de Araujo Pereira, Gerson do Nascimento Costa, Veronica Brito da Silva, Regina Lucia Ferreira Gomes, Francisco de Alcantara Neto, Angela Celis de Almeida Lopes, Ademir Sergio Ferreira Araujo
Summary: Plant domestication has an impact on the assembly and diversity of microbial communities in the rhizosphere. The microbial community structure differs between wild, semi-domesticated, and domesticated genotypes of lima bean, with a decrease in community similarity and changes in the abundance of specific microbial groups. Domestication also affects the complexity of interactions among microbial communities in the rhizosphere.
Article
Ecology
Ignacio Peralta-Maraver, Cyrus Rutere, Marcus A. Horn, Isabel Reche, Volker Behrends, Julia Reiss, Anne L. Robertson
Summary: Water is crucial, but organic pollution in freshwater sources is common. There is growing concern over emerging organic contaminants in wastewater treatment plant effluent. This study investigates the effects of phosphate concentration and predator-prey interactions on the ability of bacteria to degrade a model emerging organic contaminant (ibuprofen).
Article
Soil Science
Angela Celis de Almeida Lopes, Lucas William Mendes, Karla Annielle da Silva Bernardo Brito, Josieli Lima da Silva, Sandra Mara Barbosa Rocha, Jadson Emanuel Lopes Antunes, Louise Melo de Souza Oliveira, Vania Maria Maciel Melo, Francisca Andrea Silva Oliveira, Arthur Prudencio de Araujo Pereira, Gerson do Nascimento Costa, Veronica Brito da Silva, Regina Lucia Ferreira Gomes, Francisco de Alcantara Neto, Ademir Sergio Ferreira Araujo
Summary: This study found that the rhizospheric microbial community differs between plant species from the Phaseolus genus and these differences could be related to phylogenetic differences. The microbial richness and diversity also vary among these plant species, with P. lunatus having the most distinct rhizospheric community.
APPLIED SOIL ECOLOGY
(2023)
Article
Environmental Sciences
Ademir Sergio Ferreira Araujo, Xiu Jia, Ana Roberta Lima Miranda, Arthur Prudencio de Araujo Pereira, Vania Maria Maciel Melo, Sandra Mara Barbosa Rocha, Romario Martins Costa, Talyta Carine da Silva Saraiva, Lucas William Mendes, Joana Falcao Salles
Summary: This study investigated the impact of different concentrations of composted tannery sludge on bacterial communities. It found that rare bacterial communities were more sensitive to the sludge application, with certain genera increasing in abundance under higher concentrations.
Article
Environmental Sciences
Ademir Sergio Ferreira Araujo, Ana Roberta Lima Miranda, Arthur Prudencio de Araujo Pereira, Wanderley Jose de Melo, Vania Maria Maciel Melo, Sabrina Hermelindo Ventura, Eudemio Sousa Brito Jr, Erika Valente de Medeiros, Fabio Fernando Araujo, Lucas William Mendes
Summary: This study assessed the microbial community in the rhizosphere of maize and cowpea grown in Cr-contaminated soils using amplicon sequencing. The results showed that the microbial community in the maize rhizosphere clustered together, while the microbial community in the cowpea rhizosphere did not present clear clustering. Furthermore, Cr contamination had different effects on specific bacterial groups in the rhizospheres of maize and cowpea.
Article
Biodiversity Conservation
Alexandre Pedrinho, Lucas William Mendes, Felipe Martins do Rego Barros, Luis Fernando Merloti, Mayara Martins E. Martins, Simone Raposo Cotta, Fernando Dini Andreote, Siu Mui Tsai
Summary: Land-use change has negative impacts on the biodiversity of plants and animals, but studies on the impacts of land-use change on soil microorganisms, particularly those involved in the phosphorus transformation processes, are lacking. This study used DNA-metagenomic sequencing and P fractionation analysis to assess the effects of forest-to-pasture conversion on soil bacterial groups involved in P transformation processes. The results showed that land-use change altered soil P dynamics and bacterial community structure.
ECOLOGICAL INDICATORS
(2023)
Article
Microbiology
Linda Hink, Anja Holzinger, Tobias Sandfeld, Alfons R. Weig, Andreas Schramm, Heike Feldhaar, Marcus A. Horn
Summary: Microplastic (MP) is a burden to the environment and enters food webs through ingestion by macrofauna like isopods in terrestrial ecosystems. This study examines the effects of biodegradable (polylactic acid [PLA]) and non-biodegradable (polyethylene terephthalate [PET]; polystyrene [PS]) MPs on the isopod host and its gut microbiota. The findings suggest that PLA stimulates microbial activity and hydrogen emission from the isopod guts, while PET and PS have inhibitory effects on gut fermentation. This study highlights the potential of MP to affect terrestrial food webs.
ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Dasiel Obregon Alvarez, Leandro Fonseca de Souza, Lucas William Mendes, Moacir Tuzzin de Moraes, Micaela Tosi, Andressa Monteiro Venturini, Kyle M. Meyer, Plinio Barbosa de Camargo, Brendan J. M. Bohannan, Jorge L. Mazza Rodrigues, Kari E. Dunfield, Siu Mui Tsai
Summary: Deforestation in the Amazon rainforest leads to changes in the microbial communities driving methane-cycling, resulting in pasture soils becoming a source of atmospheric methane. This study investigated the taxonomic and functional structure of these communities, finding higher abundance and diversity of methanogens in pasture soils. The results highlight the importance of preserving the Amazon biome to mitigate greenhouse gas emissions.
Article
Microbiology
Thierry Alexandre Pellegrinetti, Izadora De Cassia Mesquita da Cunha, Miriam Goncalves de Chaves, Anderson Santos de Freitas, Ana Vitoria Reina da Silva, Siu Mui Tsai, Lucas William Mendes
Summary: This study reports the genomes of 10 different bacterial strains from Amazonian dark earths, including six identified as Paenibacillus polymyxa and four representing other bacterial species. All these strains exhibited antagonistic activity against Fusarium oxysporum, highlighting their potential as sustainable agriculture resources.
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2023)
Article
Ecology
Tanja Heffner, Semi A. Brami, Lucas W. Mendes, Thomas Kaupper, Emilia S. Hannula, Anja Poehlein, Marcus A. Horn, Adrian Ho
Summary: Porcellio scaber is a soil bioengineer that modifies the properties of its habitat and affects carbon and nitrogen mineralization. However, its impact on methane-cycling processes remains unknown.
ISME COMMUNICATIONS
(2023)
Article
Microbiology
Tanja Heffner, Thomas Kaupper, Mara Heinrichs, Hyo Jung Lee, Nadine Rueppel, Marcus A. Horn, Adrian Ho
Summary: Mitomycin C can induce a viral shunt, affecting soil microbial respiration and methane uptake, and alter the composition of active bacterial community, including methanotrophs. The impact of a viral shunt on the carbon cycle, including methane cycle, in soil systems is not well understood. This study provides insights into the effects of Mitomycin C and potentially a viral shunt on bacteria in the soil environment.
FEMS MICROBIOLOGY ECOLOGY
(2023)
Article
Ecology
Erika Valente de Medeiros, Erica de Oliveira Silva, Gustavo Pereira Duda, Mario Andrade Lira Junior, Uemeson Jose dos Santos, Claude Hammecker, Diogo Paes da Costa, Fabio Fernando Araujo, Arthur Prudencio de Araujo Pereira, Lucas William Mendes, Ademir Sergio Ferreira Araujo
Summary: Different land-use types have an impact on the enzymatic stoichiometry and the acquisition of carbon, nitrogen, and phosphorus in semi-arid soils in Brazil. The study found that the values of C and N-acquiring enzymes were higher at the 0-5 cm depth in different land-use types. It also revealed that soils in the Brazilian semi-arid region are limited by phosphorus. This study highlights the importance of land-use types and soil depth in determining enzymatic stoichiometry.
SOIL ECOLOGY LETTERS
(2023)
Article
Soil Science
Marcos Renan Lima Leite, Francisco de Alcantara Neto, Alexson Filgueiras Dutra, Lucas William Mendes, Rafael de Souza Miranda, Vania Maria Maciel Melo, Francisca Andrea Silva Oliveira, Thamara Kelly dos Santos Apollo Sousa, Romario Martins Costa, Sandra Mara Barbosa Rocha, Arthur Prudencio de Araujo Pereira, Renato de Mello Prado, Ademir Sergio Ferreira Araujo
Summary: The application of silicon fertilizers can significantly affect the structure and composition of rhizospheric microbial communities in sugarcane. Na-silicate had a more significant effect on the microbial community than K-silicate, resulting in a shift in the community structure. Si application also affected the niche occupancy of generalist microbes.
APPLIED SOIL ECOLOGY
(2024)