Potencial antimicrobiano de extratos extracelulares de isolados de actinobactérias e de suas frações orgânicas/ Antimicrobial potential of extracellular extracts of actinobacterial isolates and their organic fractions
DOI:
https://doi.org/10.34117/bjdv7n10-465Keywords:
actinomicetos, controle biológico, viáveis mas não-cultiváveis.Abstract
A utilização de micro-organismos antagonistas e seus metabólitos secundários no controle de fitopatógenos é alvo de grande interesse, já que pode constituir uma alternativa de menor impacto no ambiente em relação aos químicos sintéticos. O cultivo de novos isolados de bactérias antagonistas, além dos gêneros Streptomyces e Bacillus, os quais são fontes da ampla maioria dos antibióticos conhecidos, amplia a possibilidade de descobrir novas moléculas com potencial antimicrobiano. Desse modo, o presente trabalho teve como objetivo avaliar o potencial antimicrobiano de extratos extracelulares de culturas de actinobactérias do solo e de suas frações orgânicas contra os organismos–alvo Xanthomonas campestris 629, Bacillus cereus ATCC14579 e Saccharomyces cerevisiaeV200. Neste estudo foram utilizados cinco isolados de actinobacterias do solo (isolados TC42, TC44, TC70, TC105 e TCX, da Embrapa Tabuleiros Costeiros).
Potencial antimicrobiano de extratos extracelulares de isolados de actinobactérias e de suas frações orgânicas/
Antimicrobial potential of extracellular extracts of actinobacterial isolates and their organic fractions
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