Overview on Biodiversity, Chemistry, and Biotechnological Potential of Microorganisms from the Brazilian Amazon

Pereira, José Odair; Souza, Antônia Queiroz Lima de; Souza, Afonso Duarte Leão de; França, Suzelei de Castro; Oliveira, Luiz Antônio de

doi:10.1007/978-3-319-55804-2_5

Cited by 9 publications

(6 citation statements)

References 77 publications

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“…The Amazonian biodiversity certainly represents a significant source for the prospection of microorganisms effective in bioremediation processes (Pereira et al 2017). …”

Section: Introductionmentioning

confidence: 99%

Potential of Bacterial Isolates from a Stream in Manaus-Amazon to Bioremediate Chromium-Contaminated Environments

Teles

Castro

Sargentini

et al. 2018

Water Air Soil Pollut

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Igarapé do Quarenta (IgQ), a stream located in the Manaus-AM, BR, has directly experienced the impacts of urban expansion over the last five decades, which contributed for its contamination. As an affluent of Rio Negro, IgQ also affects the water quality of this important river that bathes Manaus. However, the stress caused by the prolonged exposition to chemical agents may have selected microorganisms that exhibit great bioremediation potential. In the present study, bacteria isolated from four distinct sites of the IgQ were identified, and their potential to degrade hexavalent chromium (Cr(VI)) was investigated using the s-diphenylcarbazide method. Among the investigated isolates, 14 exhibited resistance against Cr(VI) at a concentration of 300 mg/L and eight isolates reduced over 50% (53.5–97.4%) chromium ratios after 72 h of incubation. Those isolates were identified by gene sequencing and classified in 10 genera (Acidovorax sp., Acinetobacter sp., Alicycliphilus sp., Bacillus sp., Comamonas sp., Enterobacter sp., Micrococcus sp., Proteus sp., Serratia sp., and Vagococcus sp.). Under control conditions, the isolate of Vagococcus sp. genus, in only 24 h of incubation, reduced 96.8% of the rate of Cr(VI) added to the culture medium at the concentration of 10 mg/L. Obtained results indicate that the Vagococcus sp. exhibits a great potential to be used in the bioremediation of areas contaminated with chromium. The mechanisms of action of microorganisms should be investigated for more specific applications in the decontamination of effluents and direct use of its by-products to bioremediate polluted environments.Electronic supplementary materialThe online version of this article (10.1007/s11270-018-3903-1) contains supplementary material, which is available to authorized users.

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“…The Amazonian biodiversity certainly represents a significant source for the prospection of microorganisms effective in bioremediation processes (Pereira et al 2017). …”

Section: Introductionmentioning

confidence: 99%

Potential of Bacterial Isolates from a Stream in Manaus-Amazon to Bioremediate Chromium-Contaminated Environments

Teles

Castro

Sargentini

et al. 2018

Water Air Soil Pollut

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“…Only one other class of bioactive products, the hapalosins, have been reported across two different genera within the Nostocales, initially reported from Hapalosiphon welwitischii IC-52-3 [ 37 , 40 ] and more recently in Fischerella sp. PCC9431 [ 41 , 42 ]. Two groups of bioactive products, the ultraviolet (UV) sunscreen mycosporine-like amino acids and the hepatotoxic microcystins, are broadly distributed across the cyanobacterial phylum including Fischerella [ 43 , 44 , 45 ].…”

Section: Discussionmentioning

confidence: 99%

Symphyonema bifilamentata sp. nov., the Right Fischerella ambigua 108b: Half a Decade of Research on Taxonomy and Bioactive Compounds in New Light

et al. 2021

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Since 1965 a cyanobacterial strain termed ‘Fischerella ambigua 108b’ was the object of several studies investigating its potential as a resource for new bioactive compounds in several European institutes. Over decades these investigations uncovered several unique small molecules and their respective biosynthetic pathways, including the polychlorinated triphenyls of the ambigol family and the tjipanazoles. However, the true taxonomic character of the producing strain remained concealed until now. Applying a polyphasic approach considering the phylogenetic position based on the 16S rRNA and the protein coding gene rbcLX, secondary structures and morphological features, we present the strain ‘Fischerella ambigua 108b’ as Symphyonema bifilamentata sp. nov. 97.28. Although there is the type species (holotype) S. sinense C.-C. Jao 1944 there is no authentic living strain or material for genetic analyses for the genus Symphyonema available. Thus we suggest and provide an epitypification of S. bifilamentata sp. nov. 97.28 as a valid reference for the genus Symphyonema. Its affiliation to the family Symphyonemataceae sheds not only new light on this rare taxon but also on the classes of bioactive metabolites of these heterocytous and true-branching cyanobacteria which we report here. We show conclusively that the literature on the isolation of bioactive products from this organism provides further support for a clear distinction between the secondary metabolism of Symphyonema bifilamentata sp. nov. 97.28 compared to related and other taxa, pointing to the assignment of this organism into a separate genus.

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“…Devido a condições climáticas, o Brasil apresenta uma das maiores biodiversidades do planeta, incluindo a dos fungos que podem ser encontrados facilmente em diversos ecossistemas e habitats (PEREIRA et al, 2017). Apesar da ampla diversidade de espécies fungos, apenas uma parcela de 6,6% das 1.500.000 estimadas estão descritas na literatura, das quais cerca de 13.800 podem ser encontradas no Brasil LEWINSOHN & PRADO 2006).…”

Section: Revisão 1 | Fungos Filamentososunclassified

Fatores De Virulência De Leveduras Do Gênero Candida Em Cavidade Bucal E Próteses Dentárias De Idosos De Uma Unidade Básica De Saúde – Tefé – Am

Bessa¹,

Silva²,

Silva³

et al. 2020

Micologia: Fungos E/Ou Seus Metabólitos Como Objeto De Estudo

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Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição 4.0 Internacional (CC BY 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.

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Overview on Biodiversity, Chemistry, and Biotechnological Potential of Microorganisms from the Brazilian Amazon

Cited by 9 publications

References 77 publications

Potential of Bacterial Isolates from a Stream in Manaus-Amazon to Bioremediate Chromium-Contaminated Environments

Potential of Bacterial Isolates from a Stream in Manaus-Amazon to Bioremediate Chromium-Contaminated Environments

Symphyonema bifilamentata sp. nov., the Right Fischerella ambigua 108b: Half a Decade of Research on Taxonomy and Bioactive Compounds in New Light

Fatores De Virulência De Leveduras Do Gênero Candida Em Cavidade Bucal E Próteses Dentárias De Idosos De Uma Unidade Básica De Saúde – Tefé – Am

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