Pub Date : 2026-02-05DOI: 10.1007/s42770-026-01870-7
Alejandra Capelli, Gonzalo Suárez, Lina Bettucci, Carmen García Y Santos
{"title":"Evaluation of a sequestrant used to reduce aflatoxin M<sub>1</sub> in dairy cows ingesting contaminated feed.","authors":"Alejandra Capelli, Gonzalo Suárez, Lina Bettucci, Carmen García Y Santos","doi":"10.1007/s42770-026-01870-7","DOIUrl":"10.1007/s42770-026-01870-7","url":null,"abstract":"","PeriodicalId":9090,"journal":{"name":"Brazilian Journal of Microbiology","volume":"57 1","pages":"51"},"PeriodicalIF":1.9,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12873033/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146117887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-03DOI: 10.1007/s42770-026-01871-6
Tamires Ataides Silva, Lucianne Cardoso Neves, Warley Vieira de Freitas Paula, Bianca Barbara Fonseca da Silva, Diego Ortiz da Silva, Cíntia Pelegrineti Targueta, Flávia Regina Florencio Athayde, Mariana Pires de Campos Telles, Iveraldo Dos Santos Dutra, Felipe da Silva Krawczak, Ana Carolina Borsanelli
{"title":"First characterization of the oral microbiota of capybaras (Hydrochoerus hydrochaeris) in Brazil: insights into one health risks.","authors":"Tamires Ataides Silva, Lucianne Cardoso Neves, Warley Vieira de Freitas Paula, Bianca Barbara Fonseca da Silva, Diego Ortiz da Silva, Cíntia Pelegrineti Targueta, Flávia Regina Florencio Athayde, Mariana Pires de Campos Telles, Iveraldo Dos Santos Dutra, Felipe da Silva Krawczak, Ana Carolina Borsanelli","doi":"10.1007/s42770-026-01871-6","DOIUrl":"10.1007/s42770-026-01871-6","url":null,"abstract":"","PeriodicalId":9090,"journal":{"name":"Brazilian Journal of Microbiology","volume":"57 1","pages":"48"},"PeriodicalIF":1.9,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12864589/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146104042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-03DOI: 10.1007/s42770-025-01822-7
Max Roberto Batista Araújo, Louisy Sanches Dos Santos, Marcus Vinicius Canário Viana, Eduarda Guimarães Sousa, Fernanda Diniz Prates, Hugo Felix Perini, Marcos Vinicius da Silva, Jailan da Silva Sousa, Bertram Brenig, Bruno Silva Andrade, Ana Luiza Mattos-Guaraldi, Lincoln de Oliveira Sant'Anna, Juliana Nunes Ramos, Ana Lua de Oliveira Vinhal, Siomar de Castro Soares, Vasco Azevedo
{"title":"Comparative genomics and molecular characterization of a multidrug-resistant Corynebacterium glucuronolyticum isolated for the first time from the human genitourinary tract in Latin America.","authors":"Max Roberto Batista Araújo, Louisy Sanches Dos Santos, Marcus Vinicius Canário Viana, Eduarda Guimarães Sousa, Fernanda Diniz Prates, Hugo Felix Perini, Marcos Vinicius da Silva, Jailan da Silva Sousa, Bertram Brenig, Bruno Silva Andrade, Ana Luiza Mattos-Guaraldi, Lincoln de Oliveira Sant'Anna, Juliana Nunes Ramos, Ana Lua de Oliveira Vinhal, Siomar de Castro Soares, Vasco Azevedo","doi":"10.1007/s42770-025-01822-7","DOIUrl":"10.1007/s42770-025-01822-7","url":null,"abstract":"","PeriodicalId":9090,"journal":{"name":"Brazilian Journal of Microbiology","volume":"57 1","pages":"49"},"PeriodicalIF":1.9,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12868440/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146112524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nanopore sequencing of the Tunisian gut microbiome: effect of the DNA extraction methods.","authors":"Ammous-Boukhris Nihel, Abdelmaksoud-Dammak Rania, Oumarou Hama Hamadou, Grine Ghiles, Belguith Imen, Abdelhedi Fatma, Amouri Ali, Mnif Basma, Sellami Hayet, Gdoura Radhouan, Ammar-Keskes Leila, Raja Mokdad-Gargouri","doi":"10.1007/s42770-025-01866-9","DOIUrl":"10.1007/s42770-025-01866-9","url":null,"abstract":"","PeriodicalId":9090,"journal":{"name":"Brazilian Journal of Microbiology","volume":"57 1","pages":"47"},"PeriodicalIF":1.9,"publicationDate":"2026-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12852554/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146059970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-28DOI: 10.1007/s42770-025-01840-5
Laucélly Bárbara Avelar Rocha, Vívian Nicolau Gonçalves, Fábio Soares de Oliveira, Guilherme Resende Corrêa, Eduardo Osório Senra, Eduardo Baudson Duarte, Fabyano A C Lopes, Micheline C Silva, Peter Convey, Paulo E A S Câmara, Luiz Henrique Rosa
{"title":"Endolithic fungal diversity is present in the unique phosphatized rocks of an environmentally extreme equatorial archipelago revealed by DNA amplicon metagenomics.","authors":"Laucélly Bárbara Avelar Rocha, Vívian Nicolau Gonçalves, Fábio Soares de Oliveira, Guilherme Resende Corrêa, Eduardo Osório Senra, Eduardo Baudson Duarte, Fabyano A C Lopes, Micheline C Silva, Peter Convey, Paulo E A S Câmara, Luiz Henrique Rosa","doi":"10.1007/s42770-025-01840-5","DOIUrl":"10.1007/s42770-025-01840-5","url":null,"abstract":"","PeriodicalId":9090,"journal":{"name":"Brazilian Journal of Microbiology","volume":"57 1","pages":"46"},"PeriodicalIF":1.9,"publicationDate":"2026-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12852548/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146060024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-28DOI: 10.1007/s42770-025-01816-5
Rogério Mercês Ferreira Santos, Lucas Yago Melo Ferreira, João Pedro Nunes Santos, Lucas Barbosa de Amorim Conceição, Giovanna Venas Oliveira, Cassio van den Berg, Eric Roberto Guimarães Rocha Aguiar
Metatranscriptomic analysis of public RNA-seq data from Dendrobium catenatum, an economically and culturally important orchid, revealed a highly diverse virome. Sixteen exogenous viral species were detected, representing seven families of RNA viruses, including positive-sense ssRNA viruses (Botourmiaviridae, Mitoviridae, Narnaviridae, Endornaviridae, and Fusariviridae) and double-stranded RNA viruses (Phlegviridae and Partitiviridae). In addition, seven endogenous viral elements (EVEs) were identified, with a predominance of Mitoviridae, suggesting historical viral integration events. The detected virome reflected complex interactions between plant-associated fungi and the host orchid, and many of detected viral families are commonly associated with fungal hosts, suggesting that several viruses may be of mycoviral origin, though their exact host remains to be confirmed. Phylogenetic analyses and compositional correlations point toward potential horizontal virus transfer events across kingdom boundaries, further complicating the ecological network of virus-host relationships. To explore virus-host adaptation, we also analyzed codon usage and dinucleotide/trinucleotide composition profiles, revealing clustering patterns that suggest co-evolutionary pressures and potential host-specific optimization of viral genomes. These molecular signatures enhance our understanding of how viruses may adapt to diverse hosts and underscore the complex evolutionary dynamics shaping the D. catenatum holobiont. These findings not only broaden our knowledge of orchid-associated viral diversity but also provide critical insights into virus evolution and cross-kingdom virome interactions.
{"title":"Metaviromic insights into the viral community associated with Dendrobium catenatum.","authors":"Rogério Mercês Ferreira Santos, Lucas Yago Melo Ferreira, João Pedro Nunes Santos, Lucas Barbosa de Amorim Conceição, Giovanna Venas Oliveira, Cassio van den Berg, Eric Roberto Guimarães Rocha Aguiar","doi":"10.1007/s42770-025-01816-5","DOIUrl":"10.1007/s42770-025-01816-5","url":null,"abstract":"<p><p>Metatranscriptomic analysis of public RNA-seq data from Dendrobium catenatum, an economically and culturally important orchid, revealed a highly diverse virome. Sixteen exogenous viral species were detected, representing seven families of RNA viruses, including positive-sense ssRNA viruses (Botourmiaviridae, Mitoviridae, Narnaviridae, Endornaviridae, and Fusariviridae) and double-stranded RNA viruses (Phlegviridae and Partitiviridae). In addition, seven endogenous viral elements (EVEs) were identified, with a predominance of Mitoviridae, suggesting historical viral integration events. The detected virome reflected complex interactions between plant-associated fungi and the host orchid, and many of detected viral families are commonly associated with fungal hosts, suggesting that several viruses may be of mycoviral origin, though their exact host remains to be confirmed. Phylogenetic analyses and compositional correlations point toward potential horizontal virus transfer events across kingdom boundaries, further complicating the ecological network of virus-host relationships. To explore virus-host adaptation, we also analyzed codon usage and dinucleotide/trinucleotide composition profiles, revealing clustering patterns that suggest co-evolutionary pressures and potential host-specific optimization of viral genomes. These molecular signatures enhance our understanding of how viruses may adapt to diverse hosts and underscore the complex evolutionary dynamics shaping the D. catenatum holobiont. These findings not only broaden our knowledge of orchid-associated viral diversity but also provide critical insights into virus evolution and cross-kingdom virome interactions.</p>","PeriodicalId":9090,"journal":{"name":"Brazilian Journal of Microbiology","volume":"57 1","pages":"43"},"PeriodicalIF":1.9,"publicationDate":"2026-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12852558/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146059937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-28DOI: 10.1007/s42770-025-01817-4
Marcelo Pereira de Oliveira, Alan Portal D'Almeida, Tiago Lima de Albuquerque, Vânia Maria Maciel Melo, Tigressa Helena Soares Rodrigues, Maria Valderez Ponte Rocha
The bioremediation potential of the Acinetobacter venetianus AMO1502 strain, a microorganism isolated from the oil collected from the spill off the Brazilian coast in 2019, was investigated using diesel oil as a hydrocarbon source. A. venetianus AMO1502 was able to grow in a medium containing only non-sterile diesel oil as a carbon source. In the bioprocesses using 0.5% and 1.0% (v/v) diesel oil, all compounds were completely degraded after 168 h, while the biodegradation percentage decreased with increasing diesel oil concentration. The surfactant compounds produced formed stable emulsions with diesel oil and kerosene as hydrophobic substrate, reaching emulsification indexes of 50-65%. A reduction in the surface tension of the medium was observed, decreasing by up to 65.9% (from 68.5 mN/m to 23.4 mN/m). These results demonstrate that the isolated strain, A. venetianus AMO1502, efficiently metabolizes hydrocarbons and produces surface-active compounds, highlighting its potential application in the bioremediation of petroleum-derived compounds.
{"title":"Acinetobacter venetianus AMO1502: a strain isolated from an oil spill capable of degrading diesel and producing active surface compounds.","authors":"Marcelo Pereira de Oliveira, Alan Portal D'Almeida, Tiago Lima de Albuquerque, Vânia Maria Maciel Melo, Tigressa Helena Soares Rodrigues, Maria Valderez Ponte Rocha","doi":"10.1007/s42770-025-01817-4","DOIUrl":"10.1007/s42770-025-01817-4","url":null,"abstract":"<p><p>The bioremediation potential of the Acinetobacter venetianus AMO1502 strain, a microorganism isolated from the oil collected from the spill off the Brazilian coast in 2019, was investigated using diesel oil as a hydrocarbon source. A. venetianus AMO1502 was able to grow in a medium containing only non-sterile diesel oil as a carbon source. In the bioprocesses using 0.5% and 1.0% (v/v) diesel oil, all compounds were completely degraded after 168 h, while the biodegradation percentage decreased with increasing diesel oil concentration. The surfactant compounds produced formed stable emulsions with diesel oil and kerosene as hydrophobic substrate, reaching emulsification indexes of 50-65%. A reduction in the surface tension of the medium was observed, decreasing by up to 65.9% (from 68.5 mN/m to 23.4 mN/m). These results demonstrate that the isolated strain, A. venetianus AMO1502, efficiently metabolizes hydrocarbons and produces surface-active compounds, highlighting its potential application in the bioremediation of petroleum-derived compounds.</p>","PeriodicalId":9090,"journal":{"name":"Brazilian Journal of Microbiology","volume":"57 1","pages":"44"},"PeriodicalIF":1.9,"publicationDate":"2026-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12852514/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146059979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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