The Davistown Museum

(Nancy Kaufman) #1

Riesenfeld, C., Goodman, R., and Handelsman, J. (2004). Uncultured soil bacteria are a
reservoir of new antibiotic resistance genes. Environmental Microbiology. 6(9). Pg.
981-989. http://www.ncbi.nlm.nih.gov/pubmed/15305923



  • “Antibiotic resistance genes are typically isolated by cloning from cultured
    bacteria or by polymerase chain reaction (PCR) amplification from
    environmental samples.”

  • “Based on the predicted amino acid sequences of the resistance genes the
    resistance mechanisms include efflux of tetracycline and inactivation of
    aminoglycoside antibiotics by phosphorylation and acetylation.”

  • “The results indicate that soil bacteria are a reservoir of antibiotic resistance
    genes with greater genetic diversity than previously accounted for.”


Rizzo, L., Manaia, C., Merlin, C. et al. (2013). Urban wastewater treatment plants as
hotspots for antibiotic resistant bacteria and genes spread into the environment: a
review. Science of the Total Environment. 447. pg. 345-60.
http://www.sciencedirect.com/science/article/pii/S0048969713000429



  • “Urban wastewater treatment plants (UWTPs) are among the main sources of
    antibiotics’ release into the environment. The occurrence of antibiotics may
    promote the selection of antibiotic resistance genes (ARGs) and antibiotic
    resistant bacteria(ARB).”

  • “The mechanisms by which biological processes influence the
    development/selection of ARB and ARGs transfer are still poorly understood.”

  • “Some studies showed that conventional UWTPs may positively affect ARB
    spread and selection as well as ARG transfer.”

  • “Demonstrating ARG transfer in complex environments remains a difficult task
    although indispensable for an adequate risk assessment of resistance spread in
    UWTPs.”

  • “All known types of antibiotic resistance mechanisms are represented in UWTP,
    suggesting the relevance of these facilities as reservoirs and environmental
    suppliers of genetic determinants of resistance.”


Rosenfeld, W. and ZoBell, C. (1947). Antibiotic production by marine organisms.
Journal of Bacteriology. 54. pg. 393-8.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC526565/


Rysz, M. and Alvarez, P. (2004). Amplification and attenuation of tetracycline
resistance in soil bacteria: Aquifer column experiments. Water Research. 38. pg. 3705-



  1. http://alvarez.rice.edu/files/2012/02/56.pdf

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