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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/jfd.12938
|2 doi
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|a pubmed24n0975.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Beck, Benjamin H
|e verfasserin
|4 aut
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|a Antimicrobial activity of the biopolymer chitosan against Streptococcus iniae
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 01.04.2019
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2019 John Wiley & Sons Ltd.
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|a The antimicrobial activity and mode of action of chitosan were evaluated against Streptococcus iniae, a pathogenic Gram-positive bacterium of fish worldwide. Cell proliferation kinetics were examined following exposure to varying concentrations of chitosan. The action of chitosan on S. iniae was also investigated by measuring agglutination activity, conductivity, and extracellular and intracellular bacterial adenosine triphosphate (ATP) levels. Chitosan exhibited antibacterial activity against S. iniae at concentrations of 0.1% and above and was lethal at a concentration of 0.4% and higher. The mechanism of antibacterial activity of chitosan at the inhibitory level of bacterial growth appears to hinge upon the interaction between chitosan and the oppositely charged bacterial surface. This interplay causes agglutination, which was readily observed grossly and microscopically. After interacting with the cell surface via adsorption, an efflux of intracellular ATP was documented, which suggests that chitosan disrupts the bacterial cell causing leakage of cytosolic contents and ultimately cell death. Results suggest chitosan may be worth evaluating as a natural alternative to antibiotic against S. iniae infection of fish
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|a Journal Article
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|a Streptococcus iniae
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|a antibacterial
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|a chitosan
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|a diseases
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|a fish
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|a Anti-Infective Agents
|2 NLM
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|a Adenosine Triphosphate
|2 NLM
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| 650 |
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|a Chitosan
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|2 NLM
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|a Yildirim-Aksoy, Mediha
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shoemaker, Craig A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fuller, Sidney Adam
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Peatman, Eric
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of fish diseases
|d 1998
|g 42(2019), 3 vom: 15. März, Seite 371-377
|w (DE-627)NLM098166034
|x 1365-2761
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|g volume:42
|g year:2019
|g number:3
|g day:15
|g month:03
|g pages:371-377
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|u http://dx.doi.org/10.1111/jfd.12938
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