Article
Environmental Sciences
Yingjie Wu, Susana S. Santos, Mette Vestergard, Ana M. Martin Gonzalez, Luyao Ma, Ying Feng, Xiaoe Yang
Summary: Hyperaccumulating ecotypes of Sedum plants show higher efficiency in phytoremediation in mine areas and farmlands compared to nonhyperaccumulating ecotypes, and rhizosphere co-occurrence networks for nonhyperaccumulating ecotypes are more complex. The microbiome assembly of Sedum plants is influenced by plant compartment and location, with specific bacterial genera potentially playing a role in promoting metal phytoremediation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Viji Nagarajan, Hsin-Chi Tsai, Jung-Sheng Chen, Bashir Hussain, Suprokash Koner, Zeng-Yei Hseu, Bing-Mu Hsu
Summary: This study compared the bacterial community and functional profiles associated with different sites using 16S rRNA gene sequencing. The results showed that the variation in bacterial community selection and abundance was influenced by factors such as heavy metal content, interaction between hyperaccumulator plants and soil microbiota, and agricultural practices.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Tian Wang, Haijuan Wang, Kaiping Feng, Haiyan Li, Hongbin Wang
Summary: This study identifies a highly tolerant strain of Bacillus pacificus to Cd, Pb, and As and demonstrates the significant impact of soil physicochemical properties on bacterial community composition. The findings suggest that B. pacificus may be used for the remediation of Cd-Pb-As co-contaminated soil.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Jo De Vrieze, Robert Heyer, Ruben Props, Lieven Van Meulebroek, Karen Gille, Lynn Vanhaecke, Dirk Benndorf, Nico Boon
Summary: This study compared four different microbial community fingerprinting methods for characterizing the full-scale anaerobic digestion microbiome, with cytometric fingerprinting through flow cytometry proving to be a reliable, fast method for holistic monitoring. The complementary identification of key features through other methods could give rise to a direct interpretation of anaerobic digestion process performance.
Article
Microbiology
Renyan Duan, Yihuan Du, Zhiwei Chen, Yaqi Zhang, Wei Hu, Li Yang, Guohong Xiang, Yucai Luo
Summary: This study evaluated the effects of abandoned farmlands (AFS) and selective-farming farmlands (FFS) on soil properties and bacterial diversity in an antimony mining area in southern China. The results showed that FFS had higher Sb concentration and nutritional properties, and greater bacterial diversity compared to AFS. This indicates that selective farming can improve soil environment and bacterial diversity in low-pollution farmlands in mining areas.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Environmental Sciences
Francisco L. Massello, Edgardo Donati
Summary: Metal-resistant extremophilic microbes were studied for their high adaptability and versatility, making them suitable for bioremediation, bioleaching, or biomonitoring processes. Through sampling of indigenous microbial communities in extreme environments, it was found that these microbes exhibited remarkable tolerance to heavy metals and could be potentially used for various biotechnological applications.
ENVIRONMENTAL POLLUTION
(2021)
Article
Microbiology
Shuwei Pei, Lu Feng, Yonghua Zhang, Jiangyun Liu, Jia Li, Qiwen Zheng, Xingrong Liu, Bin Luo, Ye Ruan, Huan Li, Weigang Hu, Jingping Niu, Tian Tian
Summary: Long-term exposure to heavy metals disrupts normal bacterial communities in the buccal mucosa, reducing the complexity and stability of the microbial network and increasing the risk of developing various diseases.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Environmental Sciences
Ademir Sergio Ferreira Araujo, Arthur Prudencio de Araujo de Pereira, Jadson Emanuel Lopes Antunes, Louise Melo de Souza Oliveira, Wanderley Jose de Melo, Sandra Mara Barbosa Rocha, Marineide Rodrigues do Amorim, Fabio Fernando Araujo, Vania Maria Maciel Melo, Lucas William Mendes
Summary: The use of composting as a biological alternative to improve tannery sludge quality by microbial action has been proposed. This study assessed the responses of bacterial and archaeal communities during composting using 16S rRNA sequencing, revealing specific microbial community structures and dynamics at different stages of the composting process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Multidisciplinary Sciences
Renyan Duan, Yuxiang Lin, Jianing Zhang, Minyi Huang, Yihuan Du, Li Yang, Jing Bai, Guohong Xiang, Zhigao Wang, Yaqi Zhang
Summary: The study used a method of substituting space for time to investigate the impact of natural restoration on rhizosphere bacterial community. Different restoration stages showed significant differences in the composition and diversity of rhizosphere bacteria, with Actinobacteria increasing in middle restoration and Patescibacteria decreasing in later restoration. Several rhizosphere microbial communities in the early restoration stage were found to be preferable for remediation of polluted soil in Xikuangshan.
Article
Environmental Sciences
R. G. Bulgarelli, M. F. A. Leite, M. De Hollander, P. Mazzafera, S. A. L. Andrade, E. E. Kuramae
Summary: The availability of soil phosphorus can affect plant growth, root-soil interactions, and rhizosphere microbial community composition. This study investigated the rhizosphere microbial communities of 24 species of eucalypts under low or sufficient soil phosphorus availability. It was found that eucalypt species identity was the main factor determining the composition of the rhizosphere microbial community, while the effect of phosphorus availability varied among species.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Robert Starke, Victor Satler Pylro, Daniel Kumazawa Morais
Summary: Sequencing 16S rRNA gene amplicons is commonly used to study prokaryotic communities, but gene copy normalization (GCN) does not improve the accuracy of results. The study questions the use of GCN for metataxonomic surveys until a more comprehensive catalogue of copy numbers becomes available.
Article
Microbiology
Kayla M. Williamson, Brandie D. Wagner, Charles E. Robertson, Mark J. Stevens, Marci K. Sontag, Peter M. Mourani, J. Kirk Harris
Summary: The study aimed to increase the sensitivity of bacterial community analysis without impacting community composition or interfering with cluster formation during sequencing. The modified PCR protocol showed increased sensitivity in detecting bacterial communities in airway samples, crucial for studying the highly variable human airway microbiome.
Article
Nutrition & Dietetics
Jianghui Zhang, Yuan Wang, Guimei Chen, Hongli Wang, Liang Sun, Dongmei Zhang, Fangbiao Tao, Zhihua Zhang, Linsheng Yang
Summary: This study on older Chinese adults found associations between individual essential metal(loid)s (EMs) and the compositions of the gut microbiota. The analysis of urine samples and 16S rRNA gene sequencing revealed significant associations between certain EMs and the gut microbiota, particularly in specific populations, suggesting that EMs play an important role in maintaining gut microbiota homeostasis.
Article
Environmental Sciences
Zijun He, Kejin Chen, Chuan Huang, Xiaobu Xin, Hanyue Tan, Jing Jiang, Xiaoyan Wu, Jinru Zhai
Summary: Kitchen waste generates odors composed of complex volatile organic compounds (VOCs). Analysis of VOCs using gas chromatography-mass spectrometry revealed the presence of hydrogen sulfide, methanethiol, methyl sulfide, dimethyl disulfide, and ethyl acetate as the major odor-causing VOCs. As the temperature increased, the complexity of both VOCs and microbial community composition increased. Microbial species such as Leuconostoc, Pediococcus, Acetobacter, and Weissella were found to be associated with VOC production. Precursor substances are more likely to be enzymatically catalyzed to generate the corresponding VOCs, rather than interconverted by microbial metabolism as indicated by PICRUSt2 analysis. Trichloromethane and 1,2-dichloroethane, which may have adverse health effects through long-term inhalation, should be given attention. The findings of this study provide guidance for controlling VOCs from kitchen waste.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Tilak Nayak, Debjit De, Parimal Karmakar, Argha Deb, Paltu Kumar Dhal
Summary: This study examined the microbial dynamics of drinking water with different radon gradients and found that sites with radon contamination had lower microbial diversity. The dominant microbial families varied between sites with different radon gradients, highlighting the potential for utilizing microbial communities for biostimulation-based in situ bioremediation.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Article
Ecology
Marcelo P. Avila, Ernandes S. Oliveira-Junior, Mariana P. Reis, Eric R. Hester, Cristiane Diamantino, Annelies J. Veraart, Leon P. M. Lamers, Sarian Kosten, Andrea M. A. Nascimento
Article
Metallurgy & Metallurgical Engineering
Augusta Martinelli Miranda, Paulo Santos Assis, Geoffrey Alan Brooks, Muhammad Akbar Rhamdhani, Andrea Fontana, Alister King, Gerald Sanders, Gabriela Paula da Costa Moreira
IRONMAKING & STEELMAKING
(2019)
Article
Metallurgy & Metallurgical Engineering
Carlos Frederico Campos de Assis, Elisangela Martins Leal, Paulo Santos Assis, Leandro Miranda Nascimento, Hirokazu Konishi, Tateo Usui
IRONMAKING & STEELMAKING
(2020)
Article
Microbiology
Luciano Lopes Queiroz, Maria Silveira Costa, Alcilene de Abreu Pereira, Marcelo de Paula Avila, Patricia Silva Costa, Andrea Maria Amaral Nascimento, Gustavo Augusto Lacorte
BRAZILIAN JOURNAL OF MICROBIOLOGY
(2020)
Article
Environmental Sciences
Alyne Duarte Pereira, Luyara de Almeida Fernandes, Helena Maria Campos Castro, Cintia Dutra Leal, Brenda Goncalves Piteira Carvalho, Marcela Franca Dias, Andrea Maria Amaral Nascimento, Carlos Augusto de Lemos Chernicharo, Juliana Calabria de Araujo
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2019)
Article
Engineering, Environmental
Marcela Franca Dias, Gabriel da Rocha Fernandes, Magna Cristina de Paiva, Anna Christina de Matos Salim, Alexandre Bueno Santos, Andrea Maria Amaral Nascimento
Article
Environmental Sciences
Mariana P. Reis, Maria Luiza S. Suhadolnik, Marcela F. Dias, Marcelo P. Avila, Amanda M. Motta, Francisco A. R. Barbosa, Andrea M. A. Nascimento
Article
Microbiology
Marcela Franca Dias, Giovanni Marques de Castro, Magna Cristina de Paiva, Mariana de Paula Reis, Susanne Facchin, Anderson Oliveira do Carmo, Marta Salgueiro Alves, Maria Luiza Suhadolnik, Amanda de Moraes Motta, Isabel Henriques, Evanguedes Kalapothakis, Francisco Pereira Lobo, Andrea Maria Amaral Nascimento
Summary: Freshwater ecosystems provide a conducive environment for the acquisition and dissemination of antibiotic resistance genes (ARGs), with integrons playing a crucial role in this process. This study in the Velhas River, Brazil, revealed a diverse range of putative environmental integron-cassettes and their potential bacterial hosts through deep sequencing of intI-attC and 16S rRNA amplicons. The results indicated the presence of various ORFs related to different biological processes, particularly ARGs-cassettes associated with class 1 mobile integrons carried by pathogenic Gammaproteobacteria. Additionally, taxonomic and functional profiling identified Proteobacteria, Bacteroidetes, Firmicutes, and Actinobacteria as dominant phyla, with Betaproteobacteria, Alphaproteobacteria, and Actinobacteria classes being the main contributors to KEGG orthologs associated with resistance. Overall, these findings highlight the role of environmental integrons as a reservoir for resistance determinants beyond clinical settings and provide insights into the bacterial community in the Velhas River.
BRAZILIAN JOURNAL OF MICROBIOLOGY
(2021)
Article
Environmental Sciences
Maria Luiza S. Suhadolnik, Patricia S. Costa, Giovanni M. Castro, Francisco P. Lobo, Andrea M. A. Nascimento
Summary: The meta-analysis revealed the widespread presence of arsenic and iron redox genes in various environmental conditions, with specific genes playing important roles in different environments. The diversity and taxonomy of gene carriers were also found to be extensive. However, almost all AsRGs and FeRGs were not carried by plasmid sequences.
ENVIRONMENT INTERNATIONAL
(2021)
Article
Microbiology
Rodrigo Carvalho, Flavia Aburjaile, Marcus Canario, Andrea M. A. Nascimento, Edmar Chartone-Souza, Luis de Jesus, Andrey A. Zamyatnin, Bertram Brenig, Debmalya Barh, Preetam Ghosh, Aristoteles Goes-Neto, Henrique C. P. Figueiredo, Siomar Soares, Rommel Ramos, Anne Pinto, Vasco Azevedo
Summary: The study elucidated the factors involved in the mobilization of virulence and drug-resistance genes in the BH100 sub-strains, suggesting that pBH100 might be involved in the spreading of drug resistance through the formation of resistance islands. Additionally, the BH100 strain is closely related to UPEC strains and contains many IS3 and IS21-transposase-enriched genomic islands associated with virulence.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
R. M. M. Paim, G. C. D. Pessoa, B. W. L. Nascimento, A. M. D. Nascimento, L. C. Pinheiro, L. B. Koerich, L. Diotaiuti, R. N. Araujo, M. R. V. Sant'Anna, N. F. Gontijo, M. H. Pereira
Summary: The control of Chagas disease in endemic countries heavily relies on insecticide spraying to eliminate triatomine vectors. Resistance to pyrethroids, the preferred insecticide, poses a significant obstacle to effective control. The study evaluated the role of three Rhodnius prolixus CYP4EM subfamily genes in blood meal digestion and after exposure to deltamethrin, revealing potential targets for enhancing vector control strategies.
INSECT MOLECULAR BIOLOGY
(2022)
Article
Environmental Sciences
Maria Luiza Soares Suhadolnik, Patricia Silva Costa, Magna Cristina Paiva, Anna Christina de Matos Salim, Francisco Antonio Rodrigues Barbosa, Francisco Pereira Lobo, Andrea Maria Amaral Nascimento
Summary: The study found that the world's largest mining disaster had a significant impact on the sediment microbiomes, leading to resistome expansion, enrichment of pathogens, and increases in promiscuous and mobile ARGs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biotechnology & Applied Microbiology
Gustavo Augusto Lacorte, Leticia Aparecida Cruvinel, Marcelo de Paula Avila, Marcela Franca Dias, Alcilene de Abreu Pereira, Andrea Maria Amaral Nascimento, Bernadette Dora Gombossy de Melo Franco
Summary: This study used 16S rRNA gene sequencing to investigate the bacterial communities in the processing environments and final products of Canastra cheese in Brazil. The results showed that the diversity of bacterial communities in the processing environments was higher than that in the cheeses, and there was a greater discrepancy in facilities with inadequate food safety management systems (FSMS). Additionally, the bacterial communities in the environments, especially hand surfaces and ripening wooden shelves, were similar to those in the processing and finished cheese in facilities with inadequate FSMS.
Article
Biotechnology & Applied Microbiology
Mariana de Paula Reis, Rayan Silva de Paula, Andre Luiz Martins Reis, Clara Carvalho e Souza, Renato Brito de Oliveira Junior, Jacqueline Alves Ferreira, Helen Regina Mota, Marcela David de Carvalho, Erika Cristina Jorge, Antonio Valadao Cardoso, Andrea Maria Amaral Nascimento
Summary: The study examined the microbiota of a cooling system in the Irape hydroelectric power plant in Brazil and found significant variations in microfouling communities over time as well as differences in bacterial composition in samples from different seasons. Results suggest that thermophilic bacteria could be potential targets for more efficiently reducing biofilm formation.
Article
Materials Science, Multidisciplinary
Adriano Correa Batista, Amanda Maia Aguiar, Hellen Cristine Prata de Oliveira, Paulo Santos Assis
MATERIA-RIO DE JANEIRO
(2020)