Heavy-Metal and Antibiotic Resistance in the Bacterial Flora of Sediments of New York Bight

Timoney, John F.; Port, Jennifer; Giles, Janis; Spanier, Jonathan G.

doi:10.1128/aem.36.3.465-472.1978

Cited by 197 publications

(60 citation statements)

References 16 publications

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“…Bacteria exposed to OXA developed cross‐resistance towards OTC (Hansen, Lunestad & Samuelsen 1992). Exposure to heavy metals and other toxicants can also confer resistance to some antibiotics (Timoney & Port 1982; Baya, Brayton, Brown, Grime, Russek‐Choen & Colwell 1996).…”

Section: Characteristics Of the Bacteria Isolated From Sea Horse Commentioning

confidence: 99%

The first report of Vibrio harveyi infection in the sea horse Hippocampus kuda Bleekers 1852 in the Philippines

Tendencia¹

2004

Aquac Research

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Section: Characteristics Of the Bacteria Isolated From Sea Horse Commentioning

confidence: 99%

The first report of Vibrio harveyi infection in the sea horse Hippocampus kuda Bleekers 1852 in the Philippines

Tendencia¹

2004

Aquac Research

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“…The MIC of ampicillin for 193 selected isolates from various sources was determined. Doubling dilutions of ampicillin from 160 to 0.625 pg/ml were made in TGY agar (Timoney & Port 1982). The plates were inoculated with a 4 mm loop which delivered about 0.01 ml of the organisms.…”

Section: E T E R M I N a T I O N O F M I N I M A L I N H I B I T O mentioning

confidence: 99%

A note on antibiotic‐resistant Escherichia coli in adult man, raw sewage and sewage‐polluted River Tigris in Mosul, Nineva

Al-Jebouri

Meshhadani

1985

Journal of Applied Bacteriology

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A total of 600 isolates of Escherichia coli were isolated, over a 9 month period during 1984, from healthy human adults, raw sewage and the sewage-polluted River Tigris in Nineva. Over 90% of these organisms were E. coli type 1, but only 8.3% could be serogrouped as enteropathogenic E. coli. Resistance of these organisms to 11 antimicrobial drugs was assessed. Over 40% were antibiotic-resistant and of these 77.1% were resistant to more than one antibiotic. The minimal inhibitory concentration of ampicillin for 193 selected strains from the various sources was determined and ranged from less than 0.625-greater than 160 micrograms/ml. The high incidence of antibiotic-resistant E. coli in this locality and the possible implications to human health are discussed.

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“…Anthropogenic-derived sources of selection are typically implicated as mechanisms for maintaining antibiotic resistance in the environment, whether it is through the release of antibiotics or resistant bacteria from confined animal feeding operations, hospital waste or sewage treatment facilities (Goni-Urriza et al, 2000;Lipsitch & Samore, 2002;O'Brien, 2002;Kummerer, 2003). An increasing number of studies have documented an additional mechanism for maintaining antibiotic-resistant bacteria in the environment through co-or cross-resistance to metals or co-regulation of resistance pathways (Timoney et al, 1978;Wireman et al, 1997;Rasmussen & Sorensen, 1998;McArthur & Tuckfield, 2000;Perron et al, 2004;Berg et al, 2005;Stepanauskas et al, 2005). Therefore, it appears likely that metal exposure can directly select for metal-resistant bacteria while coselecting for antibiotic-resistant bacteria.…”

Section: Introductionmentioning

confidence: 99%

Bacterial tolerances to metals and antibiotics in metal-contaminated and reference streams

Wright

Peltier

Stepanauskas

et al. 2006

FEMS Microbiology Ecology

127

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Anthropogenic-derived sources of selection are typically implicated as mechanisms for maintaining antibiotic resistance in the environment. Here we report an additional mechanism for maintaining antibiotic resistance in the environment through bacterial exposure to metals. Using a culture-independent approach, bacteria sampled along a gradient of metal contamination were more tolerant of antibiotics and metals compared to bacteria from a reference site. This evidence supports the hypothesis that metal contamination directly selects for metal tolerant bacteria while co-selecting for antibiotic tolerant bacteria. Additionally, to assess how antibiotic and metal tolerance may be transported through a stream network, we studied antibiotic and metal tolerance patterns over three months in bacteria collected from multiple stream microhabitats including the water column, biofilm, sediment and Corbicula fluminea (Asiatic clam) digestive tracts. Sediment bacteria were the most tolerant to antibiotics and metals, while bacteria from Corbicula were the least tolerant. Differences between microhabitats may be important for identifying reservoirs of resistance and for predicting how these genes are transferred and transported in metal-contaminated streams. Temporal dynamics were not directly correlated to a suite of physicochemical parameters, suggesting that tolerance patterns within microhabitats are linked to a complex interaction of the physicochemical characteristics of the stream.

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Heavy-Metal and Antibiotic Resistance in the Bacterial Flora of Sediments of New York Bight

Cited by 197 publications

References 16 publications

The first report of Vibrio harveyi infection in the sea horse Hippocampus kuda Bleekers 1852 in the Philippines

The first report of Vibrio harveyi infection in the sea horse Hippocampus kuda Bleekers 1852 in the Philippines

A note on antibiotic‐resistant Escherichia coli in adult man, raw sewage and sewage‐polluted River Tigris in Mosul, Nineva

Bacterial tolerances to metals and antibiotics in metal-contaminated and reference streams

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