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Streptomyces globosus DK15 and Streptomyces ederensis ST13 as new producers of factumycin and tetrangomycin antibiotics

Charousová, Ivana; Medo, Juraj; Hleba, Lukáš; Javoreková, Soňa.
Braz. j. microbiol; 49 (4), 2018
ABSTRACT Fifty seven soil-borne actinomycete strains were assessed for the antibiotic production. Two of the most active isolates, designed as Streptomyces ST-13 and DK-15 exhibited a broad range of antimicrobial activity and therefore they were selected for HPLC fractionation against the most suppressed...
Antibacterianos/biosíntesis, Técnicas de Tipificación Bacteriana, Benzo(a)Antracenos/metabolismo, ADN Bacteriano/genética, Filogenia, Piridonas/metabolismo, Microbiología del Suelo, Streptomyces/clasificación, Streptomyces/genética, Streptomyces/aislamiento & purificación, Streptomyces/metabolismo
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Biosynthesized silver nanoparticles: are they effective antimicrobials?

Peiris, Mudara K; Gunasekara, Chinthika P; Jayaweera, Pradeep M; Arachchi, Nuwan DH; Fernando, Neluka.
Mem. Inst. Oswaldo Cruz; 112 (8), 2017
BACKGROUND Silver nanoparticles (AgNPs) are increasingly being used in medical applications. Therefore, cost effective and green methods for generating AgNPs are required. OBJECTIVES This study aimed towards the biosynthesis, characterisation, and determination of antimicrobial activity of AgNPs produ...
Antibacterianos/biosíntesis, Antibacterianos/química, Antibacterianos/farmacología, Recuento de Colonia Microbiana/métodos, Bacterias Gramnegativas/metabolismo, Bacterias Gramnegativas/ultraestructura, Bacterias Grampositivas/efectos de los fármacos, Nanopartículas del Metal/química, Microscopía Electrónica/métodos, Pseudomonas aeruginosa, Plata/farmacología, Espectrofotometría
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