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| Registros recuperados : 158 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
03/03/2015 |
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Data da última atualização: |
05/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
RESENDE, J. A.; DINIZ, C. G.; SILVA, V. L.; OTENIO, M. H.; BONNAFOUS, A.; ARCURI, P. B.; GODON, J.-J. |
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Afiliação: |
J. A. RESENDE, UFJF; INRA; C. G. DINIZ, UFJF; V. L. SILVA, UFJF; MARCELO HENRIQUE OTENIO, CNPGL; A. BONNAFOUS, INRA; PEDRO BRAGA ARCURI, SRI; J.-J. GODON, INRA. |
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Título: |
Dynamics of antibiotic resistance genes and presence of putative pathogens during ambient temperature anaerobic digestion. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Journal of Applied Microbiology, v. 117, n. 6, p. 1689-99, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
Aims: This study was focused on evaluating the persistency of antimicrobial resistance (AR) genes and putative pathogenic bacteria in an anaerobic digesters operating at mesophilic ambient temperature, in two different year seasons: summer and winter. Methods and Results: Abundance and dynamic of AR genes encoding resistance to macrolides (ermB), aminoglycosides (aphA2) and beta-lactams (blaTEM-1) and persistency of potentially pathogenic bacteria in pilot-scale anaerobic digesters were investigated. AR genes were determined in the influent and effluent in both conditions. Overall, after 60 days, reduction was observed for all evaluated genes. However, during the summer, anaerobic digestion was more related to the gene reduction as compared to winter. Persistency of potentially pathogenic bacteria was also evaluated by metagenomic analyses compared to an in-house created database. Clostridium, Acinetobacter and Stenotrophomonas were the most identified. Conclusions: Overall, considering the mesophilic ambient temperature during anaerobic digestion (summer and winter), a decrease in pathogenic bacteria detection through metagenomic analysis and AR genes is reported. Although the mesophilic anaerobic digestion has been efficient, the results may suggest medically important bacteria and AR genes persistency during the process. Significance and Impact of the Study: This is the first report to show AR gene dynamics and persistency of potentially pathogenic bacteria through metagenomic approach in cattle manure ambient temperature anaerobic digestion. MenosAims: This study was focused on evaluating the persistency of antimicrobial resistance (AR) genes and putative pathogenic bacteria in an anaerobic digesters operating at mesophilic ambient temperature, in two different year seasons: summer and winter. Methods and Results: Abundance and dynamic of AR genes encoding resistance to macrolides (ermB), aminoglycosides (aphA2) and beta-lactams (blaTEM-1) and persistency of potentially pathogenic bacteria in pilot-scale anaerobic digesters were investigated. AR genes were determined in the influent and effluent in both conditions. Overall, after 60 days, reduction was observed for all evaluated genes. However, during the summer, anaerobic digestion was more related to the gene reduction as compared to winter. Persistency of potentially pathogenic bacteria was also evaluated by metagenomic analyses compared to an in-house created database. Clostridium, Acinetobacter and Stenotrophomonas were the most identified. Conclusions: Overall, considering the mesophilic ambient temperature during anaerobic digestion (summer and winter), a decrease in pathogenic bacteria detection through metagenomic analysis and AR genes is reported. Although the mesophilic anaerobic digestion has been efficient, the results may suggest medically important bacteria and AR genes persistency during the process. Significance and Impact of the Study: This is the first report to show AR gene dynamics and persistency of potentially pathogenic bacteria through metage... Mostrar Tudo |
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Palavras-Chave: |
Antibiotics resistance gene abundance; Bacterial pathogens; Biofertilizer dairy cattle manure; Seasonal variations. |
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Thesagro: |
Biogás. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/119858/1/jam12653.pdf
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Marc: |
LEADER 02382naa a2200253 a 4500
001 2010483
005 2024-02-05
008 2014 bl uuuu u00u1 u #d
100 1 $aRESENDE, J. A.
245 $aDynamics of antibiotic resistance genes and presence of putative pathogens during ambient temperature anaerobic digestion.$h[electronic resource]
260 $c2014
520 $aAims: This study was focused on evaluating the persistency of antimicrobial resistance (AR) genes and putative pathogenic bacteria in an anaerobic digesters operating at mesophilic ambient temperature, in two different year seasons: summer and winter. Methods and Results: Abundance and dynamic of AR genes encoding resistance to macrolides (ermB), aminoglycosides (aphA2) and beta-lactams (blaTEM-1) and persistency of potentially pathogenic bacteria in pilot-scale anaerobic digesters were investigated. AR genes were determined in the influent and effluent in both conditions. Overall, after 60 days, reduction was observed for all evaluated genes. However, during the summer, anaerobic digestion was more related to the gene reduction as compared to winter. Persistency of potentially pathogenic bacteria was also evaluated by metagenomic analyses compared to an in-house created database. Clostridium, Acinetobacter and Stenotrophomonas were the most identified. Conclusions: Overall, considering the mesophilic ambient temperature during anaerobic digestion (summer and winter), a decrease in pathogenic bacteria detection through metagenomic analysis and AR genes is reported. Although the mesophilic anaerobic digestion has been efficient, the results may suggest medically important bacteria and AR genes persistency during the process. Significance and Impact of the Study: This is the first report to show AR gene dynamics and persistency of potentially pathogenic bacteria through metagenomic approach in cattle manure ambient temperature anaerobic digestion.
650 $aBiogás
653 $aAntibiotics resistance gene abundance
653 $aBacterial pathogens
653 $aBiofertilizer dairy cattle manure
653 $aSeasonal variations
700 1 $aDINIZ, C. G.
700 1 $aSILVA, V. L.
700 1 $aOTENIO, M. H.
700 1 $aBONNAFOUS, A.
700 1 $aARCURI, P. B.
700 1 $aGODON, J.-J.
773 $tJournal of Applied Microbiology$gv. 117, n. 6, p. 1689-99, 2014.
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Embrapa Gado de Leite (CNPGL) |
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