Plasmids Carried by Antibiotic-Resistant Marine Bacteria

Plasmids carried by antibiotic-resistant marine bacteria.

Antibiotic-resistant bacteria were isolated from seawater samples collected in the Atlantic Ocean off the southeastern coast of the United States. Large numbers of antibiotic-resistant bacterial strains were found to be present in harbor and inshore waters; however, the percentage of resistant strains was higher for several seawater samples collected offshore than for those collected near shore...

IncF Plasmids Are Commonly Carried by Antibiotic Resistant Escherichia coli Isolated from Drinking Water Sources in Northern Tanzania

The aim of this study was to identify the replicon types of plasmids, conjugation efficiencies, and the complement of antibiotic resistance genes for a panel of multidrug resistant E. coli isolates from surface waters in northern Tanzania. Standard membrane filtration was used to isolate and uidA PCR was used to confirm the identity of strains as E. coli. Antibiotic susceptibility was determine...

Transport of antibiotic-resistant bacteria and resistance-carrying plasmids through porous media.

Microbial antibiotic resistance has emerged as not only a major medical problem but also as an environmental engineering challenge, with antibiotic resistance genetic elements as environmental pollutants. The transport characteristics of a tetracycline-resistant bacterium (B. cepacia) and plasmids carrying tetracycline-resistance genes were investigated using flow-through columns packed with po...

Impacts of Antibiotic-Resistant Bacteria

Coexistence of antibiotic-producing and antibiotic-sensitive bacteria in biofilms is mediated by resistant bacteria.

Antibiotic-sensitive bacteria have been found to coexist with antibiotic-producing bacteria in biofilms, but little is known about how the former develop in such an environment. Here we isolated pyocyanin-sensitive bacteria belonging to the genus Brevibacillus from a biofilm derived from soil extract and based on the preestablished biofilm of a pyocyanin producer, Pseudomonas aeruginosa strain ...