Streptomyces Sp
Mostrando 1-12 de 199 artigos, teses e dissertações.
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1. Unveiling the Bacterial Sesquiterpenome of Streptomyces sp. CBMAI 2042 Discloses Cyclases with Versatile Performances
Terpenes are the most abundant class of natural product that exist in nature. They possess a myriad of industrial applications including pharmaceutical, perfumery and flavors, bulk chemicals, and fuel. Intriguingly, until today, the vast majority of characterized terpenoids have been isolated from plants and fungi, and only in recent years bacteria were foun
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Biologically Active Volatile Organic Compounds (VOCs) Produced by Rhizospheric Actinobacteria Strains Inhibit the Growth of the Phytopathogen Colletotrichum musae
The antifungal potential of volatile organic compounds (VOCs) produced by actinobacterial strains Streptomyces sp. (ACTB-77) and Amycolatopsis sp. (ACTB-290) from the rhizosphere of Caatinga plants against Colletotrichum musae was investigated. VOCs produced by these microorganisms (axenic and co-culture) were investigated using headspace-solid phase micro-e
Journal of the Brazilian Chemical Society. Publicado em: 2022
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3. Dextrorotatory Chromomycins from the Marine Streptomyces sp. Associated to Palythoa caribaeorum
A Streptomyces sp. (BRA-384) was selected among nine strains of bacteria isolated from the zoanthids Palythoa caribaeorum due to the high cytotoxic activity presented by its EtOAc extract (inhibitory concentration mean (IC50) of 2 ng mL-1) against colon cancer cell line. From the EtOAc extract of BRA-384 three new chemical entities (A6, A7 and A8) and one de
J. Braz. Chem. Soc.. Publicado em: 2020-01
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4. Structure and Absolute Configuration of Secondary Metabolites from Two Strains of Streptomyces chartreusis Associated with Attine Ants
The antibiotic streptazolin (1), its E-isomer (2), along with the stereoisomers strepchazolin A (3) and strepchazolin B (4) and the inorganic compound cyclooctasulfur (5) were produced in solid culture by Streptomyces chartreusis ICBG377, which was isolated from the fungal garden of the leaf-cutter ant Acromyrmex subterraneus brunneus. This is the first time
J. Braz. Chem. Soc.. Publicado em: 24/10/2019
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5. Chemical constituents, antioxidant, antimicrobial and anti-lipase activities of composites derived from green tea, lemon peels and red wine lees
Resumo Novas fontes de nutracêuticos, compósitos derivados de extrato de chá verde, borras de vinhos tintos e extratos de cascas de limão foram produzidas. O primeiro compósito foi produzido a partir de extrato de chá verde e borras de vinhos tintos. O segundo compósito foi produzido de extrato de chá verde, borras de vinhos tintos e cascas de limão
Braz. J. Food Technol.. Publicado em: 29/07/2019
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6. CO-INOCULATION OF GROWTH PROMOTING BACTERIA AND Glomus clarum IN MICROPROPAGATED CASSAVA PLANTS
RESUMO Os fungos micorrízicos arbusculares (FMA) e com as bactérias promotoras de crescimento (BPCPs) beneficiam a sobrevivência e o desenvolvimento de plântulas; tais benefícios são atribuídos ao aumento da absorção de nutrientes, aumento da taxa fotossintética, e aumento da tolerância a estresse abiótico. O objetivo deste estudo foi o de avalia
Rev. Caatinga. Publicado em: 09/05/2019
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7. Gene Deletion Leads to Improved Valinomycin Production by Streptomyces sp. CBMAI 2042
The genus Streptomyces represents one of the largest producers of molecules with antibiotic activity. The whole genome sequencing of the endophytic microorganism Streptomyces sp. CBMAI 2042 revealed 35 gene clusters encoding for secondary metabolism including 3 non-ribosomal peptide synthetases (NRPS) and 7 NRPS-hybrids. Combining genome mining and cultivati
J. Braz. Chem. Soc.. Publicado em: 2019-03
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8. Heterologous Expression of a Putative ClpC Chaperone Gene Leads to Induction of a Host Metabolite
Genome mining provides exciting opportunities for the discovery of natural products. However, in contrast to traditional bioassay-guided approaches, challenges of genome mining include poor or no expression of biosynthetic gene clusters (BGCs). Additionally, given that thousands of BGCs are now available through extensive genome sequencing, how does one sele
J. Braz. Chem. Soc.. Publicado em: 2019-03
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9. Análise do potencial microbiano de uma biopilha na biorremediação de solos contaminados por hidrocarbonetos de petróleo
RESUMO A presente pesquisa avaliou o potencial microbiano de uma biopilha na biorremediação de solos contaminados por hidrocarbonetos, montada em uma base de distribuição de combustíveis na região metropolitana de Porto Alegre, Rio Grande do Sul. Desta biopilha, foram avaliadas as concentrações dos hidrocarbonetos totais de petróleo (HTP) e de compo
Eng. Sanit. Ambient.. Publicado em: 2018-06
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10. Production and characterization of a biosurfactant produced by Streptomyces sp. DPUA 1559 isolated from lichens of the Amazon region
Surfactants are amphipathic compounds containing both hydrophilic and hydrophobic groups, capable to lower the surface or interfacial tension. Considering the advantages of the use of biosurfactants produced by microorganisms, the aim of this paper was to develop and characterize a biosurfactant produced by Streptomyces sp. DPUA1559 isolated from lichens of
Braz J Med Biol Res. Publicado em: 11/12/2017
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11. Draft genome sequence of Streptomyces sp. strain F1, a potential source for glycoside hydrolases isolated from Brazilian soil
ABSTRACT Here, we show the draft genome sequence of Streptomyces sp. F1, a strain isolated from soil with great potential for secretion of hydrolytic enzymes used to deconstruct cellulosic biomass. The draft genome assembly of Streptomyces sp. strain F1 has 69 contigs with a total genome size of 8,142,296 bp and G + C 72.65%. Preliminary genome analysis iden
Braz. J. Microbiol.. Publicado em: 2017-12
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12. Seleção, produção e caracterização bioquímica de uma nova enzima fibrinolítica produzida por Streptomyces sp. (Streptomycetaceae) isolada de liquens da Amazônia
RESUMO A trombose é uma doença patofisiológica causada pelo acúmulo de fibrina no sangue. Proteases fibrinolíticas com potente atividade trombolítica são produzidas por diversas fontes microbianas. Considerando a biodiversidade microbiana da região amazônica, o presente estudo teve como objetivo a seleção, produção e caracterização bioquímica
Acta Amaz.. Publicado em: 2016-09