Survival of pathogenic bacteria in various freshwater sediments.
AUTOR(ES)
Burton, G A
RESUMO
Four human-associated bacteria, Pseudomonas aeruginosa, Salmonella newport, Escherichia coli, and Klebsiella pneumoniae, were tested for survival in five freshwater sediments. Bacterial survival in continuous-flow chambers was monitored over 14-day periods on sediments ranging from organically rich high-clay fractions to organically poor sandy fractions. Bacterial die-off ranged from 1 to 5 orders of magnitude in sediments. E. coli survived as long as or longer than S. newport. P. aeruginosa and K. pneumoniae tended to survive longer than E. coli. Survival of E. coli and S. newport was greater in sediments containing at least 25% clay. Good reproducibility allowed the development of linear models to describe die-off rates.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=203727Documentos Relacionados
- Survival of fecal microorganisms in marine and freshwater sediments.
- Tributyltin-resistant bacteria from estuarine and freshwater sediments.
- Characterization of anaerobic heterotrophic bacteria isolated from freshwater lake sediments.
- Interaction of acetogens and methanogens in anaerobic freshwater sediments.
- Sequential anaerobic degradation of 2,4-dichlorophenol in freshwater sediments.