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| CORREIA, A. F.; SEGOVIA, J. F. O.; BEZERRA, R. M.; GONÇALVES, M. C. A.; ORNELAS, S. S.; SILVEIRA, D.; CARVALHO, J. C. T.; DINIZ, S. P. S. S.; KANZAKI, L. I. B.. |
| Aerobic and facultative bacteria belonging to the Enterobacteriaceae, Pseudomonadaceae, Bacillaceae, Corynebacteriaceae and Streptococcaceae families have been isolated from corroded metallic structures of a hydroelectric power unit in the Amazon region of Brazil. In addition to anamorphic dematiaceous and moniliaceous fungi, members of the archeobacteria kingdom were also detected in the same samples. Scanning electron micrographs of metal bars cultivated with consortia of the isolated microorganisms depicted s uggestive images of biofilm formation and corroded metallic structures questioning the possible role of these microorganisms in the corrosion activity. We also found Amazonian medicinal plants exhibiting inhibitory activity against some of the... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Microrganismo; Bacteria. |
| Ano: 2010 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/878383 |
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| CORREIA, A. F.; SEGOVIA, J. F. O.; GONÇALVES, M. C. A.; OLIVEIRA, V. L. de; SILVEIRA, D.; CARVALHO, J. C. T.; KANZAKI, L. I. B.. |
| Antimicrobial resistance is a subject of great concern in public health and also in the designing of strategies for current therapeutic protocols all over the world. New drugs, including those necessary for a reserve armamentarium and exhibiting less side effects deserve special attention. In rural areas, particularly in Brazil, a huge number of natural products, in different artisanal preparations, mainly from plants, have been used by traditional populations to cure diseases. Despite some of these plants have been studied, many of them are awaiting to have their compounds chemically characterized and investigated their pharmacodynamics properties. Further, as well known, the environment plays a crucial role in the metabolism of these plants, yielding... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Extrato bruto de planta; Amazônia; Atividade biológica; Antimicrobiana. |
| Ano: 2008 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/657882 |
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| DINIZ, S. P. S. S.; OLIVEIRA, R. C.; KANZAKI, L. I. B.; ROMERO, A. L.; PORTILHO, M.; AZEVEDO, J. S.. |
| The chestnut-do-brasil (Bertholletia excelsa) is a tree found in the Amazon region, whose fruit called ?the Brazil nut? has an important role in regional economy. Such seeds are affected by the growth of several fungi that produce mycotoxins. The fungus Aspergillus flavus is the main producer of aflatoxins, compromising the nuts. The main objective of this study was study the growth inhibitory action of A. flavus by essential oils of rosemary, anise, beta-caryophyllene, cinnamon, lemongrass, clove, eucalyptus, limonene, mint-citrata and thyme. The culture medium used was the LB, and the incubation was performed at 28°C for 48 hours in the presence of 10μL of the respective oils. Simultaneously, were tested the Agrobacterium tumefaciens and yeasts... |
| Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Castanha; Planta nucifera; Semente; Fungo. |
| Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/937756 |
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| OLIVEIRA, A. A.; SEGOVIA, J. F. O.; SOUSA, V. Y. K.; MATA, E. C. G.; GONÇALVES, M. C. A.; BEZERRA, R. M.; MJUNIOR, P. O. M; KANZAKI, L. I. B.. |
| The aqueous extracts of currently utilized Amazonian medicinal plants were assayed in vitro searching for antimicrobial activity against human and animal pathogenic microorganisms. Medium resuspended lyophilized aqueous extracts of different organs of Amazonian medicinal plants were assayed by in vitro screening for antimicrobial activity. ATCC and standardized microorganisms obtained from Oswaldo Cruz Foundation/Brazil were individually and homogeneously grown in agar plate, and holes previously perforated in the gel were filled with diluted plant aqueous extracts. Inhibition halos were evaluated and controlled by the use of the fluoroquinolone ciprofloxacin. The Amazonian medicinal plants, Hymenelobium petraeum showed inhibitory activity over... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Antimicrobials; Environment; Medicinal plants; Metabolites. |
| Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/976049 |
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| MIDORIKAWA, G. E. O.; SOUZA, M. de L. M. de; SILVA, O. F.; DIAS, J. do S. A.; KANZAKI, L. I. B.; HANADA, R. E.; MESQUITA, R. M. L. C.; GONCALVES, R. C.; ALVARES, V. de S.; BITTENCOURT, D. M. de C.; MILLER, R. N. G.. |
| Brazil nut is a protein-rich extractivist tree crop in the Amazon region. Fungal contamination of shells and kernel material frequently includes the presence of aflatoxigenic Aspergillus species from the section Flavi. Aflatoxins are polyketide secondary metabolites, which are hepatotoxic carcinogens in mammals. The objectives of this study were to identify Aspergillus species occurring on Brazil nut grown in different states in the Brazilian Amazon region and develop a specific PCR method for collective identification of member species of the genus Aspergillus. Results:Polyphasic identification of 137 Aspergillus strains isolated from Brazil nut shell material from cooperatives across the Brazilian Amazon states of Acre, Amapá and Amazonas revealed five... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Castanha do brasil; Amazônia; Doença de planta; Castanha do pará; Bertholletia excelsa; Fungo; Identificação; Aspergillus flavus; Aflatoxina; Plant diseases and disorders; Brazil nuts; Fungi; Pathogen identification; Enfermedades y desórdenes de las plantas; Nuez del Brasil; Identificación de patógenos. |
| Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/987473 |
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| SOUSA, V. Y. K.; SEGOVIA, J. F. O.; MARTINS JÚNIOR, P. O.; BEZERRA, R. M.; GONÇALVES, M. C. A.; PEREIRA, S. W. M.; VALLIM, D. C.; CRAVALHO-ASSEF, A. P. D.; HOFER, E.; KANZAKI, L. I. B.. |
| The wide spectra of colonizing microorganism, likewise Burkholderia pseudomallei, has been found in different habitats, and presenting distinct activity, as exerting physiological functions among plants, or as a pathogen for man, animals and also as a phytopathogen. A common disease of men and animals caused by B. pseudomallei, melioidosis, is a severe morbidity that usually culminates in the host death. Soil samples from different areas in the Amapá state, in northern Brazil, were screened for environmental microorganisms to assess potential antimicrobial activity aiming at biotechnological applications. Among the prospected microorganisms, B. pseudomallei was isolated from high humidity soils, mangrove, which is rich in organic materials, produced by the... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Soil; Microorganism; Gene sequences; Solo; Microrganismo. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/1043290 |
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