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Registros recuperados: 6
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Antibiosis of actinomycetes from Paullina cupana var. sorbilis (mart.) Ducke against fungi pathogenic. Repositório Alice
LIOTTI, R. G.; MELLO, I. S.; PIETRO-SOUZA, W.; FIGUEIREDO, M. I. S.; SILVEIRA, B. A. V.; SILVA, F. A.; BICHARA, K. P. A.; ALMEIDA, E. G.; SILVA, G. F.; SOARES, M. A..
Guarana (Paullinia cupana var. Sorbilis (Mart.) Ducke) is a native species of economic and social importance in Brazil serving the domestic and international demands. This culture is attacked by Colletotrichum guaranicola Albuq. and Fusarium decencellulare Brick, causal agents of anthracnose and overbudding, respectively. Actinomycetes are bacteria that may produce secondary metabolites with antibacterial and antifungal potential. The isolation of endophytic with antibiosis agaist pathogenic fungi is the first step in biological control and bioprospecting antimicrobial compounds programs.
Tipo: Separatas Palavras-chave: Antagonism; Fusarium decencellulare.; Colletotrichum Guaranicola; Fungo; Guaraná; Paullinia Cupana.; Actinobacteria..
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1029950
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Capacity resistance of endophytic fungi the mercury. Repositório Alice
PIETRO-SOUZA, W.; VENDRUSCULLO, S. J.; MELLO, I. S.; LIOTTI, R. G.; BICHARA, K. P. A.; SILVA, G. F.; ALMEIDA, E. G.; NUNES DA CUNHA, C.; SOARES, M. A..
Contamination of biological systems by mercury represents a global concern, given the difficulty of degradation, persistence and potential toxicity of this metal in the environment. Remediation strategies of soils contaminated with mercury are required and the use of microorganisms as bioremediation agents is fully justified, in particular, the various mechanisms of tolerance to heavy metals allocated to them, particularly for fungi arising from various chemical processes, such as transformation valence, intra and extracellular precipitation and oxidation. Our hypothesis is that endophytic fungi isolated from areas contaminated by mercury present higher resistance to this metal.
Tipo: Separatas Palavras-chave: MIC; Wetland; Heavy metal.; Bioremediation..
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1027546
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Endophytic bacterium isolated of hosts present in contaminated areas by mercury in Pantanal mato-grossense. Repositório Alice
MELLO, I. S.; PIETRO-SOUZA, W.; LIOTTI, R. G.; PEREIRA, J. M. C.; BICHARA, K. P. A.; SILVA, G. F.; ALMEIDA, E. G.; SOARES, M. A..
The mercury is a contaminant in gold mining in the city of Poconé. This heavy metal is a toxic in different organisms and affect the human by bioaccumulation process causing a serie of cronic diseases. Mercury can be easily absorbed by plants and be accumulated in the human body through the food chain. The hypothesis is microorganism that is in association with plants, that survive in contaminated areas with mercury, provide greater resistance to contaminant and possibly an increased frequency of colonization. In this way, the aim of this study was to isolate endophytic bacterium that exhibit resistance to mercury.
Tipo: Separatas Palavras-chave: Isolation; Tolerance; Contaminant.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1027548
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Endophytic fungi of Paullinia cupana and its antimicrobial potential. Repositório Alice
SILVA, F. A.; LIOTTI, R. G.; PIETRO-SOUZA, W.; SILVA, G. F.; SOARES, M. A.; BICHARA, K. P. A..
The objective of this study is to characterize P. cupana endophytic fungi and evaluate their antibiotic potential by agar diffusion test. Fruits and root fragments from 6 individuals were collected and sterilized with 70% ethanol and 2% sodium hypochlorite.
Tipo: Separatas Palavras-chave: Rainforest micology; Infection control.; Guaraná; Paullinia Cupana.; Antibiosis..
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1027780
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Isolation of endophytic fungi in environments with and without traces of mercury contamination, Pantanal of Mato Grosso. Repositório Alice
PIETRO-SOUZA, W.; VENDRUSCULLO, S. J.; MELLO, I. S.; LIOTTI, R. G.; BICHARA, K. P. A.; SILVA, G. F.; ALMEIDA, E. G.; NUNES DA CUNHA, C.; SOARES, M. A..
The mining activity in Mato Grosso is an economic source for many cities, especially in Poconé, where this activity is responsible for significant change in the landscape and the contamination of the ecosystem by mercury. This results in serious damage to biota enhanced by bioaccumulation capacity. Mercury is toxic to all organisms, however, some microorganisms have innate or acquired tolerance to metal. Therefore, our hypothesis is based on the premise that plants in contaminated environments with mercury harbor a specific community of endophytic fungi, therefore, variations in the colonization frequency of the endophytes in these plants are expected, when compared to places without contamination.
Tipo: Separatas Palavras-chave: Poconé; Resistance; Heavy metal; Mining of gold.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1027537
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Resistante to mercury of endophytic bacteria obtained in contaminated sites. Repositório Alice
MELLO, I. S.; PIETRO-SOUZA, W.; LIOTTI, R. G.; BARROS, B. M.; BICHARA, K. P. A.; SILVA, G. F.; ALMEIDA, E. G.; SOARES, M. A..
Strategies for remediation of soils contaminated with mercury (Hg) are important and necessary. Several bacterial species interfere with biogeochemical cycle of mercury and are potential tools in bioremediation and/or phytoremediation programs. These bacteria are resistant to mercury and the main mechanism of resistance is mediated by proteins codificated by operon mer. This study aims to determine the level of resistance to mercury of endophytic bacteria and detect the presence of merA gene.
Tipo: Separatas Palavras-chave: Tolerance; Wetland; Contaminant.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1027550
Registros recuperados: 6
Primeira ... 1 ... Última
 

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