Assessing Ecological Risks of Biotechnology 1991
DOI: 10.1016/b978-0-409-90199-3.50012-7
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Factors Affecting the Transfer of Genetic Information Among Microorganisms in Soil

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Cited by 21 publications
(11 citation statements)
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“…However, the antimicrobial pressure exercised by the use of chemotherapeutic agents in fish farms as feed additives or administered directly into rearing water enhances the selection for strains resistant to these drugs, which ultimately become the predominant organisms in the bacterial population. In addition, it is known that in nature, parameters such as bacterial density and nutrient availability affect gene transfer (37). Therefore, the laboratory conditions are similar to those found in environments such as the sediments beneath fish farms that are rich in nutrients and contain large bacterial numbers (107 to 109) usually attached to particles or forming aggregates which favors contact between cells.…”
Section: Resultsmentioning
confidence: 98%
“…However, the antimicrobial pressure exercised by the use of chemotherapeutic agents in fish farms as feed additives or administered directly into rearing water enhances the selection for strains resistant to these drugs, which ultimately become the predominant organisms in the bacterial population. In addition, it is known that in nature, parameters such as bacterial density and nutrient availability affect gene transfer (37). Therefore, the laboratory conditions are similar to those found in environments such as the sediments beneath fish farms that are rich in nutrients and contain large bacterial numbers (107 to 109) usually attached to particles or forming aggregates which favors contact between cells.…”
Section: Resultsmentioning
confidence: 98%
“…These results support the hypothesis [3] that: (1) DNA binds tightly on clay minerals; (2) bound DNA is capable of transforming naturally competent cells; and (3) bound DNA is protected against degradation by bacterial nucleases. These concepts are important to microbial ecology studies, the assessment of risks associated with the introduction of genetically modified microorganisms into the environment [26,27] and to theories on the evolution of bacteria [28].…”
Section: Resultsmentioning
confidence: 99%
“…Several physicochemical and biological factors have been shown to influence the survival of GMMs introduced into the environment [2][3][4]. Results of studies are often contradictory, especially when experiments are conducted in a heterogeneous environment such as soil.…”
Section: Introductionmentioning
confidence: 99%