TAILIEUCHUNG - Salmonella A Diversified Superbug Part 2

Tham khảo tài liệu 'salmonella a diversified superbug part 2', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 18 Salmonella - A Diversified Superbug activity and prevention of the formation of microbial biofilms by Enterococcus faecalis was examined Candido et al. 2010 . The essential oil from this plant is commonly used in Brazil for the treatment of gastric illnesses. This oil showed antimicrobial activity against E. faecalis E. coli p. aeruginosa s. choleraesuis Staphylococcus aureus Streptococcus pneumoniae and Candida parapsilosis. Further at a concentration as low as it appreciably reduced the formation of biofilm by E. faecalis Candido et al. 2010 . Predation Protozoa are important participants within microbial food webs however protozoan feeding preferences and their effects with respect to bacterial biofilms are not very clear. Work by chabaud et al. 2006 demonstrated that protozoan grazing had a substantial effect on the removal of pathogenic coliforms in septic effluent and in the presence of a biofilm. Coliform survival was 10 times lower in a septic effluent with protozoa than without them. Further removal of the bacteria within the biofilm was 60 higher in the presence of protozoa. A landmark study examined the predatory range of Myxococcus virescens and Myxococcus fulvus on a variety of human pathogens including Staphylococcus aureus Mycobacterium phlei Shigella dysenteriae Vibrio cholerae Proteus and several Salmonella isolates Mathew and Dudani 1955 . With the exception of M. phlei all of the examined pathogenic species were completely or partially lysed indicating that deciphering the predatory mechanism utilized by Myxobacteria species is of practical importance to improve our understanding of how to treat bacterial infectious diseases. In 1983 Lambina and colleagues Lambina et al. 1983 isolated a new species Micavibrio spp. of exoparasitic bacteria with an obligatory parasitic life cycle. They are gram negative small curved rod shaped X mm bacteria with a single polar flagellum A titer as low as 10 plaque forming units per well of M. .

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