Uso De Micro-Organismos Para a Biorremediação De Ambientes Impactados

Pereira, António; Freitas, Diego Antonio França de

doi:10.5902/223611704818

Cited by 18 publications

(16 citation statements)

References 12 publications

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“…Studies have noted the potential of fungi from marine ecosystems to have biotechnological applications after evaluating fungal diversity and the role of fungi in the bioremediation of pollutants in contaminated environments (Gaylard et al 2005, Passos et al 2009, Pereira & Freitas 2012, Bonugli-Santos et al 2015. Filamentous fungi have been found to be very effective in removing heavy metals from aqueous solutions due to their greater resistance to these elements (Kurek et al 1982, Collins & Stotzky 1992.…”

Section: Resultsmentioning

confidence: 99%

“…There is a tendency for greater species diversity in the tropics (Shearer et al 2007), and most fungi isolated in the tropics and subtropics are anamorphic basidiomycetes and ascomycetes (Jones & Alias 1997, Sridhar et al 2005). These fungi have been associated with numerous processes and functions, including organic matter decomposition (Tortora et al 2005, Jones et al 2009), geochemical cycles (Tortora et al 2005), their usefulness in the pharmaceutical industry (Walsh et al 2004), their value in the food industry (Molitoris 1995), and their utility in biotechnology (Atlas 1981, Carneiro & Gariglio 2011, Pereira & Freitas 2012, Houbraken et al 2014, among other benefits (Tortora et al 2005, Raghukumar 2008.…”

Section: Introductionmentioning

confidence: 99%

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Density and diversity of filamentous fungi in the water and sediment of Araçá bay in São Sebastião, São Paulo, Brazil

et al. 2018

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Araçá Bay, located in the city of São Sebastião, São Paulo, Brazil, is a protected area of substantial complexity. It represents the last remaining mangrove swamp preserve between the cities of Bertioga and Ubatuba on the northern coast of São Paulo State. This mangrove swamp has specific physical and chemical properties, and it shelters a wide variety of life, including fungi. These microorganisms are present in a variety of species with different morphophysiological features, and they have the ability to produce enzymes of biotechnological importance. The goal of this study was to quantify, isolate, and identify filamentous fungi in water and sediment samples from the Araçá Bay mangrove swamp in São Sebastião. Two samplings were performed in the summer and two were performed in the winter. The samples were collected from intertidal zones, and dissolved oxygen (DO), temperature, salinity, and pH were measured in situ. The spread plate technique was used to inoculate the samples collected on plates with a potato dextrose agar (PDA) medium. A total of 208 colonies (68 from water samples and 140 from sediment samples) were isolated, and they were identified based on their morphological characteristics. Filamentous fungus density was higher in the sediment than in the water, and the samplings performed in the winter revealed a higher density than those performed in the summer. Though some of the environmental parameters were not ideal for fungal development, a high quantity of growth was nevertheless observed. When the isolated colonies were analyzed, the greatest diversity and species richness were found in the summer samples. The genera identified in all of the samples were Aspergillus, Penicillium, Cladosporium, and Fusarium. The pathogenic species found from these genera were Aspergillus fumigatus, A. terreus, Penicillium citrinum, and P. chrysogenum. These species are also able to produce enzymes that offer a variety of applications. The fungal community described herein represents the diversity found in this mangrove swamp during the period studied. Many of the fungus species found are pathogenic and may be useful due to their ability to produce specific enzymes applicable in the biotechnological and pharmaceutical industries. Keywords: Mangrove swamp, Environmental parameters, Mycology. Densidade e diversidade de fungos filamentosos na água e sedimento da Baía do Araçá, São Sebastião (SP), BrasilResumo: A Baía do Araçá, localizada no município de São Sebastião (SP), é uma região protegida, de grande complexidade, mantendo o último remanescente preservado de manguezal entre Bertioga e Ubatuba, litoral Norte do Estado de São Paulo. Manguezal caracteriza-se com propriedades físico-químicas específicas e abriga grande diversidade de seres vivos, entre eles os fungos. Estes microrganismos apresentam grande variedade de espécies e diferentes características morfofisiológicas com capacidade de produzir algumas enzimas de importância biotecnológica. Este trabalho teve como objetivo quantificar, isolar e id...

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Density and diversity of filamentous fungi in the water and sediment of Araçá bay in São Sebastião, São Paulo, Brazil

et al. 2018

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“…Os microrganismos que ocorrem naturalmente em uma determinada área podem ser utilizados na degradação de contaminantes ambientais de formas menos tóxicas (PEREIRA & FREITAS, 2012). A degradabilidade é um atributo altamente desejável, pois a persistência destas moléculas nocivas no solo leva a uma iminente contaminação de outros ambientes, plantas, águas subterrâneas e consequentemente para os seres humanos.…”

Section: Efeitos Nos Organismos Do Solo E Degradação Microbiológicaunclassified

Resíduos Contaminantes No Solo: Possibilidades E Consequências

Souza

Damasceno²,

Schirmer

et al. 2018

R. gest. sust. ambient.

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RESUMODesde que o começou a praticar agricultura, o solo tem servido de base para o seu desenvolvimento. Com o aumento da população e o surgimento da industrialização surgiram os resíduos ou rejeitos produzidos pelos mesmos, tendo o solo um dos destinos finais destes contaminantes. Como o solo é um sistema aberto, composto por sólidos, líquidos e gases, possui mecanismos de retenção de água e nutrientes e é reativo, apresentando papel fundamental no descarte desses resíduos. Várias são as formas de resíduos produzidos pela atividade humana, onde cada uma tem peculiaridades diferentes desde sua composição até a sua forma de descarte. Estudos sobre cada rejeito, bem como o seu comportamento no solo, são necessários para que este tipo de poluição seja mitigado. Assim, esta revisão bibliográfica tem como objetivos caracterizar os principais poluentes do solo, bem como demonstrar seu comportamento e problemas no solo e apresentar algumas formas de mitigação. Palavras

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“…Some studies report that most microorganisms used in this technique are bacteria and fungi, in reason of the ability to degrade a wide range of organic substances (Pereira and Freitas, 2012).…”

Section: Bioremediationmentioning

confidence: 99%

Alternatives for remediation and decontamination of soils from Brazil

Valmir¹,

Ricardo²,

Luiz³

et al. 2014

Afr. J. Agric. Res.

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The aim of this work is to identify the main sources of contamination of soils, their effects on organisms also presenting alternatives for remediation and decontamination of these contaminated environments. The soils have in their composition organisms that are naturally present, as well as the presence of contaminants in increasing proportion when compared to the world industrialization and modernization of agriculture; therefore, increase in evolution brings with it a bigger totality of compounds, resulting in worrying rates in the soils of Brazil, such as trace elements (Cadmium, Lead, Arsenic, Mercury, Copper) and compounds organic (pesticides) and inorganic (waste fossil fuels). In many instances, this contamination can decimate forms of life in the soil. With that, remediation and decontamination of these soils becomes a fundamental need for the current economic models, making bioremediation and phytoremediation techniques consist in a feasible alternative for remediation and decontamination of soil, presenting performances satisfactory in removal and stabilization of contaminants.

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Uso De Micro-Organismos Para a Biorremediação De Ambientes Impactados

Cited by 18 publications

References 12 publications

Density and diversity of filamentous fungi in the water and sediment of Araçá bay in São Sebastião, São Paulo, Brazil

Density and diversity of filamentous fungi in the water and sediment of Araçá bay in São Sebastião, São Paulo, Brazil

Resíduos Contaminantes No Solo: Possibilidades E Consequências

Alternatives for remediation and decontamination of soils from Brazil

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