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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제26권 제1호
- 발행연도
- 2016.1
- 수록면
- 130 - 138 (9page)
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The use of antibiotics in aquaculture raises environmental and food safety concerns because chronic exposure of an aquatic ecosystem to antibiotics can result in the spread of antibiotic resistance, bioaccumulation of antibiotics in the organisms, and transfer of antibiotics to humans. In an attempt to overcome these problems, high-concentration red clay was applied as an alternative antibiotic against the following common fish pathogens: Aeromonas salmonicida, Vibrio alginolyticus, and Streptococcus equinus. The growth of A. salmonicida and V. alginolyticus was retarded by red clay, whereas that of S. equinus was promoted. Phase contrast and scanning electron microscopy analyses confirmed the attachment of red clay on cell surfaces, resulting in rapid gravitational removal and cell surface damage in both A. salmonicida and V. alginolyticus, but not in S. equinus. Different cell wall properties of grampositive species may explain the unharmed cell surface of S. equinus. Significant levels of oxidative stress were generated in only the former two species, whereas significant changes in membrane permeability were found only in S. equinus, probably because of its physiological adaptation. The bacterial communities in water samples from Oncorhynchus mykiss aquacultures supplemented with red clay showed similar structure and diversity as those from oxytetracycline-treated water. Taken together, the antibiotic effects of high concentrations of red clay in aquaculture can be attributed to gravitational removal, cell surface damage, and oxidative stress production, and suggest that red clay may be used as an alternative for antibiotics in aquaculture.
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참고문헌 (37)
참고문헌 신청
Becerra MC / 2003 / Comparison of oxidative stress induced by ciprofloxacin and pyoverdin in bacteria and in leukocytes to evaluate toxicity / Luminescence 18:334~340
Beveridge TJ / 1999 / Structures of gram-negative cell walls and their derived membrane vesicles / J. Bacteriol 181:4725~4733
Borkowski A / 2015 / Oxidative stress in bacteria (Pseudomonas putida) exposed to nanostructures of silicon carbide / Chemosphere 135:233~239
Cabello FC / 2006 / Heavy use of prophylactic antibiotics in aquaculture: a growing problem for human and animal health and for the environment / Environ. Microbiol 8:1137~1144
Carson J / 1993 / The inhibition by ionophores in vitro of an Enterococcus-like pathogen of rainbow trout, Oncorhynchus mykiss / Vet. Microbiol 36:253~259
Beveridge TJ / 1999 / Structures of gram-negative cell walls and their derived membrane vesicles / J. Bacteriol 181:4725~4733
Borkowski A / 2015 / Oxidative stress in bacteria (Pseudomonas putida) exposed to nanostructures of silicon carbide / Chemosphere 135:233~239
Cabello FC / 2006 / Heavy use of prophylactic antibiotics in aquaculture: a growing problem for human and animal health and for the environment / Environ. Microbiol 8:1137~1144
Carson J / 1993 / The inhibition by ionophores in vitro of an Enterococcus-like pathogen of rainbow trout, Oncorhynchus mykiss / Vet. Microbiol 36:253~259
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