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| 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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| 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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| 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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| 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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| LIOTTI, R. G.; MELLO, I. S.; PIETRO-SOUZA, W.; FIGUEIREDO, M. I. S.; SILVEIRA, B. A. V.; SILVA, F. A.; BICHARA, K. P. de A.; ALMEIDA, E. G.; SILVA, G. F. da; SOARES, M. A.. |
| The rhizosphere is the soil region subject to influence of exudates released by plants and microorganisms (epiphytic and endophytic). In addition, this region has large variety of bacteria that can contribute to plant growth and/or inhibiting the activity of plant pathogens. The culture of guarana (Paullinia cupana var. Sorbilis (Mart.) Ducke) is threatened by the presence of the fungus Colletotrichum guaranicola Albuq. and Fusarium decencellulare Brick, causal agents of anthracnose and overbudding, respectively. In this work, the metabolic diversity of rhizospheric bacteria was studied in resistant (R) and susceptible (S) clones collected in Manaus (Mn) and Maués (Mu). |
| Tipo: Separatas |
Palavras-chave: Ecoplate; Fusarium decencellulare.; Colletotrichum Guaranicola; Guaraná; Paullinia Cupana.. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1027783 |
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