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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
10/01/2019 |
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Data da última atualização: |
10/01/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SILVA, T. R.; DUARTE, A. W. F.; PASSARINI, M. R. Z.; RUIZ, A. L. T. G.; FRANCO, C. H.; MORAES, C. B.; FANTINATTI-GARBOGGINI, F.; MELO, I. S. de; RODRIGUES, R. A.; OLIVEIRA, V. M. |
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Afiliação: |
Tiago R. Silva, IB/UNICAMP; Divisão de Resursos Microbianos, CPQBA UNICAMP; Alysson W. F. Duarte, UFAL; Alysson W. F. Duarte3, UNILA; Ana Lucia T. G. Ruiz, Divisão de Farmacologia e Toxicologia, CPQBA UNICAMP; Caio Haddad Franco, Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas; Carolina Borsoi Moraes, Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas; Fabiana Fantinatti-Garboggini1, UFAL; ITAMAR SOARES DE MELO, CNPMA; Rodney A. Rodrigues, Divisão de Química de Produtos Naturais, CPQBA UNICAMP; Valéria M. de Oliveira. |
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Título: |
Taxonomic assessment and antimicrobial screening of isolated bacteria from marine and terrestrial Antarctic samples. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Revista Ciência, Tecnologia & Ambiente, Araras, SP, v. 6, n. 1, p. 542, 2017. Volume Especial. Edição dos Anais do VIII Simpósio de Microbiologia Aplicada, Rio Claro, maio 2017. |
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Idioma: |
Português |
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Conteúdo: |
Microorganisms dominate most of Antarctic ecosystem and play a crucial role in its functioning. They are called extremophilic microorganisms with unique and versatile metabolic properties with possible biotechnological applications in several areas. The aim of the present study was to taxonomically characterize psychrophilic microorganisms from Antarctic continent samples and to screen them for antimicrobial effects. Phylogenetic analysis revealed that most isolates shared 98?100 % sequence similarity to recognized species, including those recovered previously from the Antarctica environment, which belong to the major phyla Firmicutes, Bacteroidetes, Actinobacteria and Proteobacteria (classes Alpha and Gammaproteobacteria). A total of 361 bacteria strains, distributed in 38 different genera, were recovered and identified based on sequencing of the 16S rRNA gene. The main representative genera were Arthrobacter (29%), Psychrobacter (19%), Pseudoalteromonas (10%) and Rhodococcus (4%). Antimicrobial screening of 600 bacteria revealed sixteen strains capable of inhibiting growth of at least one of the strains: E.coli, Micrococcus luteus, Staphylococcus aureus, Bacillus subtilis and Candida albicans. One psychrotolerant bacterium, Pseudomonas mandelii strain 99, showed a broad antimicrobial range and was selected for further antiproliferative and antiparasitic tests due to low values in Minimal Inhibitory Concentration assay. Results demonstrated that the extremophiles from Antarctica represent an untapped source of diverse microorganisms capable of antimicrobial metabolite production. MenosMicroorganisms dominate most of Antarctic ecosystem and play a crucial role in its functioning. They are called extremophilic microorganisms with unique and versatile metabolic properties with possible biotechnological applications in several areas. The aim of the present study was to taxonomically characterize psychrophilic microorganisms from Antarctic continent samples and to screen them for antimicrobial effects. Phylogenetic analysis revealed that most isolates shared 98?100 % sequence similarity to recognized species, including those recovered previously from the Antarctica environment, which belong to the major phyla Firmicutes, Bacteroidetes, Actinobacteria and Proteobacteria (classes Alpha and Gammaproteobacteria). A total of 361 bacteria strains, distributed in 38 different genera, were recovered and identified based on sequencing of the 16S rRNA gene. The main representative genera were Arthrobacter (29%), Psychrobacter (19%), Pseudoalteromonas (10%) and Rhodococcus (4%). Antimicrobial screening of 600 bacteria revealed sixteen strains capable of inhibiting growth of at least one of the strains: E.coli, Micrococcus luteus, Staphylococcus aureus, Bacillus subtilis and Candida albicans. One psychrotolerant bacterium, Pseudomonas mandelii strain 99, showed a broad antimicrobial range and was selected for further antiproliferative and antiparasitic tests due to low values in Minimal Inhibitory Concentration assay. Results demonstrated that the extremophiles from Antar... Mostrar Tudo |
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Palavras-Chave: |
16S rRNA genes; Antimicrobial activity; Antiproliferative effect; Bacterial taxonomy. |
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Thesaurus Nal: |
Antarctica. |
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Categoria do assunto: |
V Taxonomia de Organismos |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/190193/1/RA-MeloIS-VIIISimposioMicrobiologiaAplicada-2017.pdf
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Marc: |
LEADER 02609nam a2200277 a 4500
001 2103537
005 2019-01-10
008 2018 bl uuuu u00u1 u #d
100 1 $aSILVA, T. R.
245 $aTaxonomic assessment and antimicrobial screening of isolated bacteria from marine and terrestrial Antarctic samples.$h[electronic resource]
260 $aRevista Ciência, Tecnologia & Ambiente, Araras, SP, v. 6, n. 1, p. 542, 2017. Volume Especial. Edição dos Anais do VIII Simpósio de Microbiologia Aplicada, Rio Claro, maio 2017.$c2017
520 $aMicroorganisms dominate most of Antarctic ecosystem and play a crucial role in its functioning. They are called extremophilic microorganisms with unique and versatile metabolic properties with possible biotechnological applications in several areas. The aim of the present study was to taxonomically characterize psychrophilic microorganisms from Antarctic continent samples and to screen them for antimicrobial effects. Phylogenetic analysis revealed that most isolates shared 98?100 % sequence similarity to recognized species, including those recovered previously from the Antarctica environment, which belong to the major phyla Firmicutes, Bacteroidetes, Actinobacteria and Proteobacteria (classes Alpha and Gammaproteobacteria). A total of 361 bacteria strains, distributed in 38 different genera, were recovered and identified based on sequencing of the 16S rRNA gene. The main representative genera were Arthrobacter (29%), Psychrobacter (19%), Pseudoalteromonas (10%) and Rhodococcus (4%). Antimicrobial screening of 600 bacteria revealed sixteen strains capable of inhibiting growth of at least one of the strains: E.coli, Micrococcus luteus, Staphylococcus aureus, Bacillus subtilis and Candida albicans. One psychrotolerant bacterium, Pseudomonas mandelii strain 99, showed a broad antimicrobial range and was selected for further antiproliferative and antiparasitic tests due to low values in Minimal Inhibitory Concentration assay. Results demonstrated that the extremophiles from Antarctica represent an untapped source of diverse microorganisms capable of antimicrobial metabolite production.
650 $aAntarctica
653 $a16S rRNA genes
653 $aAntimicrobial activity
653 $aAntiproliferative effect
653 $aBacterial taxonomy
700 1 $aDUARTE, A. W. F.
700 1 $aPASSARINI, M. R. Z.
700 1 $aRUIZ, A. L. T. G.
700 1 $aFRANCO, C. H.
700 1 $aMORAES, C. B.
700 1 $aFANTINATTI-GARBOGGINI, F.
700 1 $aMELO, I. S. de
700 1 $aRODRIGUES, R. A.
700 1 $aOLIVEIRA, V. M.
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Embrapa Meio Ambiente (CNPMA) |
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| 1. |  | ROSA, M. A. B. da; TARDIN, F. D.; SOUZA, J. M. da S.; SANTOS, J. A. P. dos; MACEDO, T. de F.; SANTOS, J.; FREITAS, M. H. de; TODESCATTO, F.; PARRELLA, R. A. da C.; FIGUEIREDO, J. E. F.; BEHLING NETO, A.; PEREIRA, D. H. Characterization of forage, sweet and biomass sorghum for agronomic performance and ensilability. Revista Brasileira de Milho e Sorgo, v. 21, e1239, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
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